Bump version for sparkle updater

Sync with upstream ekeeke/Genesis-Plus-GX@1db51e2

GenPlusGameCore.m

@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2018, OpenEmu Team
+ Copyright (c) 2022, OpenEmu Team
  
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
@@ -34,7 +34,6 @@
 #import <OpenGL/gl.h>
 
 #include "shared.h"
-#include "scrc32.h"
 
 #define OptionDefault(_NAME_, _PREFKEY_) @{ OEGameCoreDisplayModeNameKey : _NAME_, OEGameCoreDisplayModePrefKeyNameKey : _PREFKEY_, OEGameCoreDisplayModeStateKey : @YES, }
 #define Option(_NAME_, _PREFKEY_) @{ OEGameCoreDisplayModeNameKey : _NAME_, OEGameCoreDisplayModePrefKeyNameKey : _PREFKEY_, OEGameCoreDisplayModeStateKey : @NO, }
@@ -47,10 +46,13 @@
 static const double pal_fps = 53203424.0 / (3420.0 * 313.0);
 static const double ntsc_fps = 53693175.0 / (3420.0 * 262.0);
 
+t_config config;
+
 char GG_ROM[256];
 char AR_ROM[256];
 char SK_ROM[256];
 char SK_UPMEM[256];
+char MD_BIOS[256];
 char GG_BIOS[256];
 char MS_BIOS_EU[256];
 char MS_BIOS_JP[256];
@@ -223,7 +225,7 @@ static __weak GenPlusGameCore *_current;
         system_frame_sms(0);
 
     int samples = audio_update(_soundBuffer);
-    [[self ringBufferAtIndex:0] write:_soundBuffer maxLength:samples << 2];
+    [[self audioBufferAtIndex:0] write:_soundBuffer maxLength:samples << 2];
 }
 
 - (void)resetEmulation
@@ -465,10 +467,10 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
 {
     if (_multiTapType == GamepadPort1TeamPlayerPort2 || cart.special & HW_J_CART)
     {
-        int offset = (player == 1) ? 0 : player + 2;
+        NSUInteger offset = (player == 1) ? 0 : player + 2;
         input.pad[offset] |= GenesisMap[button];
     }
-    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2)
+    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2 || _multiTapType == EA4WayPlay)
     {
         input.pad[player-1] |= GenesisMap[button];
     }
@@ -482,10 +484,10 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
 {
     if (_multiTapType == GamepadPort1TeamPlayerPort2 || cart.special & HW_J_CART)
     {
-        int offset = (player == 1) ? 0 : player + 2;
+        NSUInteger offset = (player == 1) ? 0 : player + 2;
         input.pad[offset] &= ~GenesisMap[button];
     }
-    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2)
+    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2 || _multiTapType == EA4WayPlay)
     {
         input.pad[player-1] &= ~GenesisMap[button];
     }
@@ -497,10 +499,10 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
 {
     if (_multiTapType == GamepadPort1TeamPlayerPort2)
     {
-        int offset = (player == 1) ? 0 : player + 2;
+        NSUInteger offset = (player == 1) ? 0 : player + 2;
         input.pad[offset] |= GenesisMap[button];
     }
-    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2)
+    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2 || _multiTapType == EA4WayPlay)
     {
         input.pad[player-1] |= GenesisMap[button];
     }
@@ -512,10 +514,10 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
 {
     if (_multiTapType == GamepadPort1TeamPlayerPort2)
     {
-        int offset = (player == 1) ? 0 : player + 2;
+        NSUInteger offset = (player == 1) ? 0 : player + 2;
         input.pad[offset] &= ~GenesisMap[button];
     }
-    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2)
+    else if (_multiTapType == TeamPlayerPort1 || _multiTapType == TeamPlayerPort1TeamPlayerPort2 || _multiTapType == EA4WayPlay)
     {
         input.pad[player-1] &= ~GenesisMap[button];
     }
@@ -773,6 +775,9 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
     /* interpret code and give it an index */
     decode_cheat((char *)code.UTF8String, maxcheats);
 
+    // Enable the cheat by default
+    cheatlist[maxcheats].enable = 1;
+
     /* increment cheat count */
     maxcheats++;
 
@@ -785,8 +790,9 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
     /* clear existing ROM patches */
     clear_cheats();
 
-    /* remove cheats from the list */
-    remove_cheats();
+    /* delete all cheats */
+    maxcheats = maxROMcheats = maxRAMcheats = 0;
+    memset(cheatlist, 0, sizeof(cheatlist));
 }
 
 - (void)configureOptions
@@ -794,12 +800,14 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
     /* sound options */
     config.psg_preamp     = 150;
     config.fm_preamp      = 100;
+    config.cdda_volume    = 100;
+    config.pcm_volume     = 100;
     config.hq_fm          = 1; /* high-quality FM resampling (slower) */
     config.hq_psg         = 1; /* high-quality PSG resampling (slower) */
-    config.filter         = 0; /* no filter */
-    config.lp_range       = 0x7fff; /* 0.5 in 0.16 fixed point */
-    config.low_freq       = 880;
-    config.high_freq      = 5000;
+    config.filter         = 1; /* single-pole low-pass filter (6 dB/octave) */
+    config.lp_range       = 0x9999; /* 0.6 in 0.16 fixed point */
+    config.low_freq       = 880;  // 200
+    config.high_freq      = 5000; // 8000
     config.lg             = 100;
     config.mg             = 100;
     config.hg             = 100;
@@ -809,6 +817,9 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
 #ifdef HAVE_YM3438_CORE
     config.ym3438         = 0;
 #endif
+#ifdef HAVE_OPLL_CORE
+   config.opll            = 0;
+#endif
 
     /* system options */
     config.system         = 0; /* AUTO */
@@ -818,7 +829,9 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
     config.force_dtack    = 0;
     config.addr_error     = 1;
     config.bios           = 0;
-    config.lock_on        = 0;
+    config.lock_on        = 0; 
+    config.add_on         = 0; /* = HW_ADDON_AUTO (or HW_ADDON_MEGACD, HW_ADDON_MEGASD & HW_ADDON_NONE) */
+    config.cd_latency     = 1;
 
     /* video options */
     config.overscan = 0; /* 3 == FULL */
@@ -831,13 +844,15 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
         if (isLCDFilterEnabled)
             [self changeDisplayWithMode:@"LCD Ghosting"];
         else
-            config.lcd = 0;
+            config.lcd = 0; /* 0.8 fixed point */
 
     }
     else
         config.lcd  = 0;
 
-    config.render   = 0;
+    config.render   = 0; /* 1 = double resolution output (only when interlaced mode 2 is enabled) */
+    config.enhanced_vscroll = 0;
+    config.enhanced_vscroll_limit = 8;
 
     /* initialize bitmap */
     memset(&bitmap, 0, sizeof(bitmap));
@@ -867,7 +882,8 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
                              @"6ba9e256579f0cbfa18abb96acc5b24d", // Greatest Heavyweights (Europe)
                              @"8662fc03ecb681fb5a463a2e9bb2ae41", // Greatest Heavyweights (Japan)
                              @"a2319592a31d22d9ec4501ce4c188152", // Greatest Heavyweights (USA)
-                             @"a8dcb5476855a83702e2f49ebd4e2d57", // Lost Vikings, The (USA)
+                             @"a8dcb5476855a83702e2f49ebd4e2d57", // Lost Vikings, The (USA) (November, 1993)
+                             @"8335ca918a503047fc9cde6a0b082308", // Lost Vikings, The (USA) (October, 1995)
                              @"7914adf64ff1156c767ae550334c44b5", // Marsupilami (Europe) (En,Fr,De,Es,It)
                              @"9cf141681e68407d1e5279f7a35d6d53", // Marsupilami (USA) (En,Fr,De,Es,It)
                              @"a1dd8a3e4b8c98dee49d5e90d6b87903", // Mortal Kombat (World)
@@ -904,13 +920,14 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
       @"840f9f6fd4f22686b89cfd9a9ade105a" : @(TeamPlayerPort1), // Gauntlet IV (USA, Europe) (En,Ja)
       @"1f8e7897522b6e645f4b8123bff23654" : @(TeamPlayerPort1), // J. League Pro Striker Final Stage (Japan)
       @"44752b050421c4e51d1bee96b3fed44e" : @(TeamPlayerPort1), // Lost Vikings, The (Europe)
-      @"a8dcb5476855a83702e2f49ebd4e2d57" : @(TeamPlayerPort1), // Lost Vikings, The (USA)
-      @"5a94b1e8792bb3572db92c2019d99377" : @(TeamPlayerPort1), // Mega Bomberman (Europe)
+      @"a8dcb5476855a83702e2f49ebd4e2d57" : @(TeamPlayerPort1), // Lost Vikings, The (USA) (November, 1993)
+      @"8335ca918a503047fc9cde6a0b082308" : @(TeamPlayerPort1), // Lost Vikings, The (USA) (October, 1995)
+      @"5a94b1e8792bb3572db92c2019d99377" : @(TeamPlayerPort1), // Mega Bomberman (Europe, Korea) (En)
       @"514f6cad98f5f632d680983a050fffc4" : @(TeamPlayerPort1), // Mega Bomberman (USA)
       @"f9a4e85931dcaaceded19c0c2a7aace1" : @(TeamPlayerPort1), // NBA Hang Time (Europe)
       @"a2dddb13539df45f45ff4061cd6caacd" : @(TeamPlayerPort1), // NBA Hang Time (USA)
       @"d72f13bc94ad76c90deef86d5a138ff6" : @(TeamPlayerPort1), // NBA Jam (Japan)
-      @"234bf02f7f7b6fdad65890424d3a8a8f" : @(TeamPlayerPort1), // NBA Jam (USA, Europe) (v1.1)
+      @"234bf02f7f7b6fdad65890424d3a8a8f" : @(TeamPlayerPort1), // NBA Jam (USA, Europe) (Rev 1)
       @"338b8ed45e02d96f1ed31eaab59eaf43" : @(TeamPlayerPort1), // NBA Jam (USA, Europe)
       @"edeb01f0aa8aed3868db1179670db22f" : @(TeamPlayerPort1), // NBA Jam - Tournament Edition (World)
       //@"b465081da2e268a1c045c1b0615bed75" : @(TeamPlayerPort1), // NBA Pro Basketball '94 (Japan)
@@ -921,6 +938,7 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
       @"0faab2309047b85de82a62e0230ec9f4" : @(TeamPlayerPort1), // Pele II - World Tournament Soccer (USA, Europe)
       @"15a8114b96afcabcb2bd08acbc7a11c0" : @(TeamPlayerPort1), // Prime Time NFL Starring Deion Sanders (USA)
       @"a0003ccd281f9cc74aa2ef97fe23c2fc" : @(TeamPlayerPort1), // Puzzle & Action - Ichidanto-R (Japan)
+      @"15ee1db49894b798155ae60eaa2dd961" : @(TeamPlayerPort1), // Puzzle & Action - Ichidanto-R (World) (Ja) (Sega Ages)
       @"16b0f48a07baf1fa0df27453b7f008d4" : @(TeamPlayerPort1), // Puzzle & Action - Tanto-R (Japan)
       //@"4abb0405b270695261494720a2af0783" : @(TeamPlayerPort1), // Shi Jie Zhi Bang Zheng Ba Zhan - World Pro Baseball 94 (Taiwan) (Unl)
       @"abddd42b2548e9b708991f689d726c9a" : @(TeamPlayerPort1), // Tiny Toon Adventures - Acme All-Stars (Europe)
@@ -964,7 +982,7 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
       @"8bc39c10ed8d26d53a0f24f5daca81c8" : @(TeamPlayerPort1TeamPlayerPort2), // Hyper Dunk (Europe)
       @"008bcd6a3fc35015df0851e996ce80b4" : @(TeamPlayerPort1TeamPlayerPort2), // Hyper Dunk - The Playoff Edition (Japan)
       @"494d00e7c0a3ee5448e6b82fa091bac8" : @(TeamPlayerPort1TeamPlayerPort2), // International Superstar Soccer Deluxe (Europe)
-      @"f2f41f4b8e400ef33a72033ae851eee5" : @(TeamPlayerPort1TeamPlayerPort2), // Mega Bomberman 8 Player Demo
+      @"e4392bd5e77321e8ec6e76a142e9536b" : @(TeamPlayerPort1TeamPlayerPort2), // Mega Bomberman - Special 8-Player-Demo (Europe) (Proto)
       @"3426fc8802e1a385dc227b9dde59cbe4" : @(TeamPlayerPort1TeamPlayerPort2), // Ultimate Soccer (Europe) (En,Fr,De,Es,It)
 
       // 1-4 Players EA 4-Way Play
@@ -1001,6 +1019,7 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
       @"3817138d9054d91675f7378684744a4d" : @(EA4WayPlay), // NBA Live 98 (USA)
       @"9c3aeaa26c74dfae329602ee27d0c1f9" : @(EA4WayPlay), // NBA Showdown '94 (USA, Europe)
       @"8356b3f0d091b9cc441e2ff8721ad063" : @(EA4WayPlay), // NHL '94 (USA, Europe)
+      @"a1dd079f6b1ae80e90dc08839de4d3d4" : @(EA4WayPlay), // NHL '94 (USA, Europe) (Re-release)
       @"94d3518a8e592563c78cf4da84d163c8" : @(EA4WayPlay), // NHL 95 (USA, Europe)
       @"89e7e0fbe8db82b1f2dd7beafcc4e7fb" : @(EA4WayPlay), // NHL 96 (USA, Europe)
       @"4ddc912038388de3818623c046890606" : @(EA4WayPlay), // NHL 97 (USA, Europe)
@@ -1042,6 +1061,7 @@ const int MasterSystemMap[] = {INPUT_UP, INPUT_DOWN, INPUT_LEFT, INPUT_RIGHT, IN
             int port = 1; // Port 2
             input.system[0] = SYSTEM_GAMEPAD;
             input.system[1] = SYSTEM_TEAMPLAYER;
+            config.input[0].padtype = pad;
             for (int i = 0; i < 4; i++)
             {
                 config.input[port*4 + i].padtype = pad;
@@ -1336,201 +1356,234 @@ static uint32_t decode_cheat(char *string, int index)
     uint16_t data = 0;
     uint8_t ref = 0;
 
-    /* 16-bit Game Genie code (ABCD-EFGH) */
-    if ((strlen(string) >= 9) && (string[4] == '-'))
-    {
-        /* 16-bit system only */
-        if ((system_hw & SYSTEM_PBC) != SYSTEM_MD)
-        {
-            return 0;
-        }
+    if ((system_hw & SYSTEM_PBC) == SYSTEM_MD){
+        /*If system is Genesis-based*/
 
-        for (i = 0; i < 8; i++)
+        /*Game-Genie*/
+        if ((strlen(string) >= 9) && (string[4] == '-'))
         {
-            if (i == 4) string++;
-            p = strchr (ggvalidchars, *string++);
-            if (p == NULL) return 0;
-            n = p - ggvalidchars;
-
-            switch (i)
+            for (i = 0; i < 8; i++)
             {
-                case 0:
-                    data |= n << 3;
-                    break;
-
-                case 1:
-                    data |= n >> 2;
-                    address |= (n & 3) << 14;
-                    break;
-
-                case 2:
-                    address |= n << 9;
-                    break;
-
-                case 3:
-                    address |= (n & 0xF) << 20 | (n >> 4) << 8;
-                    break;
-
-                case 4:
-                    data |= (n & 1) << 12;
-                    address |= (n >> 1) << 16;
-                    break;
-
-                case 5:
-                    data |= (n & 1) << 15 | (n >> 1) << 8;
-                    break;
-
-                case 6:
-                    data |= (n >> 3) << 13;
-                    address |= (n & 7) << 5;
-                    break;
-
-                case 7:
-                    address |= n;
-                    break;
+                if (i == 4) string++;
+                p = strchr (ggvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = p - ggvalidchars;
+                switch (i)
+                {
+                    case 0:
+                        data |= n << 3;
+                        break;
+                    case 1:
+                        data |= n >> 2;
+                        address |= (n & 3) << 14;
+                        break;
+                    case 2:
+                        address |= n << 9;
+                        break;
+                    case 3:
+                        address |= (n & 0xF) << 20 | (n >> 4) << 8;
+                        break;
+                    case 4:
+                        data |= (n & 1) << 12;
+                        address |= (n >> 1) << 16;
+                        break;
+                    case 5:
+                        data |= (n & 1) << 15 | (n >> 1) << 8;
+                        break;
+                    case 6:
+                        data |= (n >> 3) << 13;
+                        address |= (n & 7) << 5;
+                        break;
+                    case 7:
+                        address |= n;
+                        break;
+                }
             }
+            /* code length */
+            len = 9;
         }
 
-        /* code length */
-        len = 9;
-    }
-
-    /* 8-bit Game Genie code (DDA-AAA-XXX) */
-    else if ((strlen(string) >= 11) && (string[3] == '-') && (string[7] == '-'))
-    {
-        /* 8-bit system only */
-        if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
+        /*Patch and PAR*/
+        else if ((strlen(string) >=9) && (string[6] == ':'))
         {
-            return 0;
-        }
-
-        /* decode 8-bit data */
-        for (i=0; i<2; i++)
-        {
-            p = strchr (arvalidchars, *string++);
-            if (p == NULL) return 0;
-            n = (p - arvalidchars) & 0xF;
-            data |= (n  << ((1 - i) * 4));
-        }
-
-        /* decode 16-bit address (low 12-bits) */
-        for (i=0; i<3; i++)
-        {
-            if (i==1) string++; /* skip separator */
-            p = strchr (arvalidchars, *string++);
-            if (p == NULL) return 0;
-            n = (p - arvalidchars) & 0xF;
-            address |= (n  << ((2 - i) * 4));
-        }
-
-        /* decode 16-bit address (high 4-bits) */
-        p = strchr (arvalidchars, *string++);
-        if (p == NULL) return 0;
-        n = (p - arvalidchars) & 0xF;
-        n ^= 0xF; /* bits inversion */
-        address |= (n  << 12);
-
-        /* RAM address are also supported */
-        if (address >= 0xC000)
-        {
-            /* convert to 24-bit Work RAM address */
-            address = 0xFF0000 | (address & 0x1FFF);
-        }
-
-        /* decode reference 8-bit data */
-        for (i=0; i<2; i++)
-        {
-            string++; /* skip separator and 2nd digit */
-            p = strchr (arvalidchars, *string++);
-            if (p == NULL) return 0;
-            n = (p - arvalidchars) & 0xF;
-            ref |= (n  << ((1 - i) * 4));
-        }
-        ref = (ref >> 2) | ((ref & 0x03) << 6);  /* 2-bit right rotation */
-        ref ^= 0xBA;  /* XOR */
-
-        /* update old data value */
-        cheatlist[index].old = ref;
-
-        /* code length */
-        len = 11;
-    }
-
-    /* Action Replay code */
-    else if (string[6] == ':')
-    {
-        if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
-        {
-            /* 16-bit code (AAAAAA:DDDD) */
-            if (strlen(string) < 11) return 0;
-
             /* decode 24-bit address */
             for (i=0; i<6; i++)
             {
                 p = strchr (arvalidchars, *string++);
-                if (p == NULL) return 0;
+                if (!p)
+                    return 0;
                 n = (p - arvalidchars) & 0xF;
                 address |= (n << ((5 - i) * 4));
             }
-
             /* decode 16-bit data */
             string++;
             for (i=0; i<4; i++)
             {
                 p = strchr (arvalidchars, *string++);
-                if (p == NULL) return 0;
+                if (!p)
+                    break;
                 n = (p - arvalidchars) & 0xF;
                 data |= (n << ((3 - i) * 4));
             }
-
             /* code length */
             len = 11;
         }
-        else
-        {
-            /* 8-bit code (xxAAAA:DD) */
-            if (strlen(string) < 9) return 0;
+    } else {
+        /*If System is Master-based*/
 
-            /* decode 16-bit address */
+        /*Game Genie*/
+        if ((strlen(string) >=7) && (string[3] == '-'))
+        {
+            /* decode 8-bit data */
+            for (i=0; i<2; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                data |= (n << ((1 - i) * 4));
+            }
+
+            /* decode 16-bit address (low 12-bits) */
+            for (i=0; i<3; i++)
+            {
+                if (i==1) string++; /* skip separator */
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                address |= (n << ((2 - i) * 4));
+            }
+            /* decode 16-bit address (high 4-bits) */
+            p = strchr (arvalidchars, *string++);
+            if (!p)
+                return 0;
+            n = (p - arvalidchars) & 0xF;
+            n ^= 0xF; /* bits inversion */
+            address |= (n << 12);
+            /* Optional: decode reference 8-bit data */
+            if (*string=='-')
+            {
+                for (i=0; i<2; i++)
+                {
+                    string++; /* skip separator and 2nd digit */
+                    p = strchr (arvalidchars, *string++);
+                    if (!p)
+                        return 0;
+                    n = (p - arvalidchars) & 0xF;
+                    ref |= (n << ((1 - i) * 4));
+                }
+                ref = (ref >> 2) | ((ref & 0x03) << 6); /* 2-bit right rotation */
+                ref ^= 0xBA; /* XOR */
+                /* code length */
+                len = 11;
+            }
+            else
+            {
+                /* code length */
+                len = 7;
+            }
+        }
+
+        /*Action Replay*/
+        else if ((strlen(string) >=9) && (string[4] == '-')){
             string+=2;
+            /* decode 16-bit address */
             for (i=0; i<4; i++)
             {
                 p = strchr (arvalidchars, *string++);
-                if (p == NULL) return 0;
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                address |= (n << ((3 - i) * 4));
+                if (i==1) string++;
+            }
+            /* decode 8-bit data */
+            for (i=0; i<2; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                data |= (n << ((1 - i) * 4));
+            }
+            /* code length */
+            len = 9;
+        }
+
+        /*Fusion RAM*/
+        else if ((strlen(string) >=7) && (string[4] == ':'))
+        {
+            /* decode 16-bit address */
+            for (i=0; i<4; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
                 n = (p - arvalidchars) & 0xF;
                 address |= (n << ((3 - i) * 4));
             }
-
-            /* ROM addresses are not supported */
-            if (address < 0xC000) return 0;
-
-            /* convert to 24-bit Work RAM address */
-            address = 0xFF0000 | (address & 0x1FFF);
-
             /* decode 8-bit data */
             string++;
             for (i=0; i<2; i++)
             {
                 p = strchr (arvalidchars, *string++);
-                if (p == NULL) return 0;
+                if (!p)
+                    return 0;
                 n = (p - arvalidchars) & 0xF;
-                data |= (n  << ((1 - i) * 4));
+                data |= (n << ((1 - i) * 4));
             }
+            /* code length */
+            len = 7;
+        }
 
+        /*Fusion ROM*/
+        else if ((strlen(string) >=9) && (string[6] == ':'))
+        {
+            /* decode reference 8-bit data */
+            for (i=0; i<2; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                ref |= (n << ((1 - i) * 4));
+            }
+            /* decode 16-bit address */
+            for (i=0; i<4; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                address |= (n << ((3 - i) * 4));
+            }
+            /* decode 8-bit data */
+            string++;
+            for (i=0; i<2; i++)
+            {
+                p = strchr (arvalidchars, *string++);
+                if (!p)
+                    return 0;
+                n = (p - arvalidchars) & 0xF;
+                data |= (n << ((1 - i) * 4));
+            }
             /* code length */
             len = 9;
         }
+        /* convert to 24-bit Work RAM address */
+        if (address >= 0xC000)
+            address = 0xFF0000 | (address & 0x1FFF);
     }
-
     /* Valid code found ? */
     if (len)
     {
         /* update cheat address & data values */
         cheatlist[index].address = address;
         cheatlist[index].data = data;
-        cheatlist[index].enable = 1; // Enable the cheat by default
+        cheatlist[index].old = ref;
     }
-
     /* return code length (0 = invalid) */
     return len;
 }
@@ -1538,16 +1591,41 @@ static uint32_t decode_cheat(char *string, int index)
 static void apply_cheats(void)
 {
     uint8_t *ptr;
-
+    int i;
     /* clear ROM&RAM patches counter */
     maxROMcheats = maxRAMcheats = 0;
 
-    int i;
     for (i = 0; i < maxcheats; i++)
     {
         if (cheatlist[i].enable)
         {
-            if (cheatlist[i].address < cart.romsize)
+            /* detect Work RAM patch */
+            if (cheatlist[i].address >= 0xFF0000)
+            {
+                /* add RAM patch */
+                cheatIndexes[maxRAMcheats++] = i;
+            }
+
+            /* check if Mega-CD game is running */
+            else if ((system_hw == SYSTEM_MCD) && !scd.cartridge.boot)
+            {
+                /* detect PRG-RAM patch (Sub-CPU side) */
+                if (cheatlist[i].address < 0x80000)
+                {
+                    /* add RAM patch */
+                    cheatIndexes[maxRAMcheats++] = i;
+                }
+
+                /* detect Word-RAM patch (Main-CPU side)*/
+                else if ((cheatlist[i].address >= 0x200000) && (cheatlist[i].address < 0x240000))
+                {
+                    /* add RAM patch */
+                    cheatIndexes[maxRAMcheats++] = i;
+                }
+            }
+
+            /* detect cartridge ROM patch */
+            else if (cheatlist[i].address < cart.romsize)
             {
                 if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
                 {
@@ -1560,16 +1638,13 @@ static void apply_cheats(void)
                     /* add ROM patch */
                     maxROMcheats++;
                     cheatIndexes[MAX_CHEATS - maxROMcheats] = i;
-
                     /* get current banked ROM address */
                     ptr = &z80_readmap[(cheatlist[i].address) >> 10][cheatlist[i].address & 0x03FF];
-
                     /* check if reference matches original ROM data */
                     if (((uint8_t)cheatlist[i].old) == *ptr)
                     {
                         /* patch data */
                         *ptr = cheatlist[i].data;
-
                         /* save patched ROM address */
                         cheatlist[i].prev = ptr;
                     }
@@ -1580,20 +1655,20 @@ static void apply_cheats(void)
                     }
                 }
             }
-            else if (cheatlist[i].address >= 0xFF0000)
-            {
-                /* add RAM patch */
-                cheatIndexes[maxRAMcheats++] = i;
-            }
         }
     }
 }
 
 static void clear_cheats(void)
 {
-    int i = maxcheats;
+    int i;
 
-    /* disable cheats in reversed order in case the same address is used by multiple patches */
+    /* no ROM patches with Mega-CD games */
+    if ((system_hw == SYSTEM_MCD) && !scd.cartridge.boot)
+        return;
+
+    /* disable cheats in reversed order in case the same address is used by multiple ROM patches */
+    i = maxcheats;
     while (i > 0)
     {
         if (cheatlist[i-1].enable)
@@ -1612,34 +1687,12 @@ static void clear_cheats(void)
                     {
                         /* restore original data */
                         *cheatlist[i-1].prev = cheatlist[i-1].old;
-
                         /* no more patched ROM address */
                         cheatlist[i-1].prev = NULL;
                     }
                 }
             }
         }
-
-        i--;
-    }
-}
-
-static void remove_cheats(void)
-{
-    int i = maxcheats;
-    while (i > 0)
-    {
-        if (cheatlist[i-1].enable)
-        {
-            cheatlist[i-1].text[0] = 0;
-            cheatlist[i-1].code[0] = 0;
-            cheatlist[i-1].address = 0;
-            cheatlist[i-1].data = 0;
-            cheatlist[i-1].enable = 0;
-
-            maxcheats--;
-        }
-
         i--;
     }
 }
@@ -1650,8 +1703,10 @@ static void remove_cheats(void)
  * Apply RAM patches (this should be called once per frame)
  *
  ****************************************************************************/
-void RAMCheatUpdate(void)
+static void RAMCheatUpdate(void)
 {
+    uint8_t *base;
+    uint32_t mask;
     int index, cnt = maxRAMcheats;
 
     while (cnt)
@@ -1659,20 +1714,44 @@ void RAMCheatUpdate(void)
         /* get cheat index */
         index = cheatIndexes[--cnt];
 
+        /* detect destination RAM */
+        switch ((cheatlist[index].address >> 20) & 0xf)
+        {
+            case 0x0: /* Mega-CD PRG-RAM (512 KB) */
+                base = scd.prg_ram;
+                mask = 0x7fffe;
+                break;
+
+            case 0x2: /* Mega-CD 2M Word-RAM (256 KB) */
+                base = scd.word_ram_2M;
+                mask = 0x3fffe;
+                break;
+
+            default: /* Work-RAM (64 KB) */
+                base = work_ram;
+                mask = 0xfffe;
+                break;
+        }
+
         /* apply RAM patch */
+        // TODO: Investigate. Some PAR cheats for Genesis don't work otherwise.
+        // e.g. Sonic The Hedgehog 2 (World) (Rev A).md (MD5 9feeb724052c39982d432a7851c98d3e) using Invincibility (Sonic only) code FFB02B:0002
+        // Fixes possible endianness issue, also does not invoke pointer typecasting UB
+        bool isSega16bit = ((system_hw & SYSTEM_PBC) == SYSTEM_MD) || (system_hw == SYSTEM_MCD);
         //if (cheatlist[index].data & 0xFF00)
-        //if (cheatlist[index].data & 0x00FF) // For LSB?
-        BOOL isSega8bit = [_current.systemIdentifier isEqualToString:@"openemu.system.gg"] || [_current.systemIdentifier isEqualToString:@"openemu.system.sms"] || [_current.systemIdentifier isEqualToString:@"openemu.system.sg1000"];
-        // TODO: Figure out why this is. Some PAR cheats for Genesis don't work otherwise.
-        if (isSega8bit ? cheatlist[index].data & 0xFF00 : cheatlist[index].data & 0x00FF)
+        if (isSega16bit ? cheatlist[index].data & 0x00FF : cheatlist[index].data & 0xFF00)
         {
             /* word patch */
-            *(uint16_t *)(work_ram + (cheatlist[index].address & 0xFFFE)) = cheatlist[index].data;
+            unsigned addr = cheatlist[index].address & mask;
+            base[addr] = cheatlist[index].data & 0xFF;
+            base[addr + 1] = (cheatlist[index].data & 0xFF00) >> 8;
+            //*(uint16_t *)(base + (cheatlist[index].address & mask)) = cheatlist[index].data;
         }
         else
         {
             /* byte patch */
-            work_ram[cheatlist[index].address & 0xFFFF] = cheatlist[index].data;
+            mask |= 1;
+            base[cheatlist[index].address & mask] = cheatlist[index].data;
         }
     }
 }
@@ -1706,8 +1785,8 @@ void ROMCheatUpdate(void)
         /* get current banked ROM address */
         ptr = &z80_readmap[(cheatlist[index].address) >> 10][cheatlist[index].address & 0x03FF];
 
-        /* check if reference matches original ROM data */
-        if (((uint8_t)cheatlist[index].old) == *ptr)
+        /* check if reference exists and matches original ROM data */
+        if (!cheatlist[index].old || ((uint8_t)cheatlist[index].old) == *ptr)
         {
             /* patch data */
             *ptr = cheatlist[index].data;

GenesisPlus.xcodeproj/project.pbxproj

@@ -36,6 +36,7 @@
 
 /* Begin PBXBuildFile section */
 		82287C39101E9DB40072172D /* GenPlusGameCore.m in Sources */ = {isa = PBXBuildFile; fileRef = 82287C34101E9DB40072172D /* GenPlusGameCore.m */; };
+		87709EF32950DA090084AEE0 /* megasd.c in Sources */ = {isa = PBXBuildFile; fileRef = 87709EF22950DA090084AEE0 /* megasd.c */; };
 		879243AE1C0D044B0064C515 /* xe_1ap.c in Sources */ = {isa = PBXBuildFile; fileRef = 879243AC1C0D044B0064C515 /* xe_1ap.c */; };
 		879243B11C0D05120064C515 /* graphic_board.c in Sources */ = {isa = PBXBuildFile; fileRef = 879243AF1C0D05120064C515 /* graphic_board.c */; };
 		87E0514D1B18092700E870E1 /* scrc32.c in Sources */ = {isa = PBXBuildFile; fileRef = 87E0514B1B18092700E870E1 /* scrc32.c */; };
@@ -126,21 +127,23 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
-		089C1672FE841209C02AAC07 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = /System/Library/Frameworks/Foundation.framework; sourceTree = "<absolute>"; };
-		089C167EFE841241C02AAC07 /* English */ = {isa = PBXFileReference; fileEncoding = 10; lastKnownFileType = text.plist.strings; name = English; path = English.lproj/InfoPlist.strings; sourceTree = "<group>"; };
-		089C167FFE841241C02AAC07 /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = /System/Library/Frameworks/AppKit.framework; sourceTree = "<absolute>"; };
-		1058C7ADFEA557BF11CA2CBB /* Cocoa.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Cocoa.framework; path = /System/Library/Frameworks/Cocoa.framework; sourceTree = "<absolute>"; };
+		089C1672FE841209C02AAC07 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		089C167EFE841241C02AAC07 /* en */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/InfoPlist.strings; sourceTree = "<group>"; };
+		089C167FFE841241C02AAC07 /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = System/Library/Frameworks/AppKit.framework; sourceTree = SDKROOT; };
+		1058C7ADFEA557BF11CA2CBB /* Cocoa.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Cocoa.framework; path = System/Library/Frameworks/Cocoa.framework; sourceTree = SDKROOT; };
 		82287C08101E9C2C0072172D /* libz.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = libz.dylib; path = usr/lib/libz.dylib; sourceTree = SDKROOT; };
 		82287C33101E9DB40072172D /* GenPlusGameCore.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GenPlusGameCore.h; sourceTree = "<group>"; };
 		82287C34101E9DB40072172D /* GenPlusGameCore.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GenPlusGameCore.m; sourceTree = "<group>"; };
 		825C7E44101FAB7F0072187B /* Carbon.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Carbon.framework; path = System/Library/Frameworks/Carbon.framework; sourceTree = SDKROOT; };
+		87709EF12950DA080084AEE0 /* megasd.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = megasd.h; sourceTree = "<group>"; };
+		87709EF22950DA090084AEE0 /* megasd.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = megasd.c; sourceTree = "<group>"; };
 		879243AC1C0D044B0064C515 /* xe_1ap.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = xe_1ap.c; sourceTree = "<group>"; };
 		879243AD1C0D044B0064C515 /* xe_1ap.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = xe_1ap.h; sourceTree = "<group>"; };
 		879243AF1C0D05120064C515 /* graphic_board.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = graphic_board.c; sourceTree = "<group>"; };
 		879243B01C0D05120064C515 /* graphic_board.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = graphic_board.h; sourceTree = "<group>"; };
-		87D7BFC01F9841EE000B38DE /* OESMSSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESMSSystemResponderClient.h; path = ../OpenEmu/SegaMasterSystem/OESMSSystemResponderClient.h; sourceTree = "<group>"; };
-		87D7BFC11F9841F8000B38DE /* OEGGSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OEGGSystemResponderClient.h; path = ../OpenEmu/GameGear/OEGGSystemResponderClient.h; sourceTree = "<group>"; };
-		87D7BFC21F984206000B38DE /* OESG1000SystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESG1000SystemResponderClient.h; path = "../OpenEmu/SG-1000/OESG1000SystemResponderClient.h"; sourceTree = "<group>"; };
+		87D7BFC01F9841EE000B38DE /* OESMSSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESMSSystemResponderClient.h; path = ../OpenEmu/SystemPlugins/SegaMasterSystem/OESMSSystemResponderClient.h; sourceTree = "<group>"; };
+		87D7BFC11F9841F8000B38DE /* OEGGSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OEGGSystemResponderClient.h; path = ../OpenEmu/SystemPlugins/GameGear/OEGGSystemResponderClient.h; sourceTree = "<group>"; };
+		87D7BFC21F984206000B38DE /* OESG1000SystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESG1000SystemResponderClient.h; path = "../OpenEmu/SystemPlugins/SG-1000/OESG1000SystemResponderClient.h"; sourceTree = "<group>"; };
 		87E0514A1B18092700E870E1 /* osd.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = osd.h; sourceTree = "<group>"; };
 		87E0514B1B18092700E870E1 /* scrc32.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = scrc32.c; sourceTree = "<group>"; };
 		87E0514C1B18092700E870E1 /* scrc32.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = scrc32.h; sourceTree = "<group>"; };
@@ -156,7 +159,7 @@
 		941FF4F8162A4BAE005A9427 /* eeprom_spi.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = eeprom_spi.h; sourceTree = "<group>"; };
 		941FF4FC162A4BE1005A9427 /* blip_buf.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = blip_buf.c; sourceTree = "<group>"; };
 		941FF4FD162A4BE1005A9427 /* blip_buf.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = blip_buf.h; sourceTree = "<group>"; };
-		946C18AE17148D5200C64BF9 /* OESegaCDSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESegaCDSystemResponderClient.h; path = "../OpenEmu/Sega CD/OESegaCDSystemResponderClient.h"; sourceTree = "<group>"; };
+		946C18AE17148D5200C64BF9 /* OESegaCDSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OESegaCDSystemResponderClient.h; path = "../OpenEmu/SystemPlugins/Sega CD/OESegaCDSystemResponderClient.h"; sourceTree = "<group>"; };
 		948DA2A115AB906400C0EA78 /* cd_cart.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = cd_cart.c; sourceTree = "<group>"; };
 		948DA2A215AB906400C0EA78 /* cd_cart.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = cd_cart.h; sourceTree = "<group>"; };
 		948DA2A315AB906400C0EA78 /* cdc.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = cdc.c; sourceTree = "<group>"; };
@@ -256,9 +259,9 @@
 		94ED8A8514CF933700FF8901 /* osd_cpu.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = osd_cpu.h; sourceTree = "<group>"; };
 		94ED8A8614CF933700FF8901 /* z80.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = z80.c; sourceTree = "<group>"; };
 		94ED8A8714CF933700FF8901 /* z80.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = z80.h; sourceTree = "<group>"; };
-		C6B948191365164700A425F0 /* OEGenesisSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OEGenesisSystemResponderClient.h; path = ../OpenEmu/Genesis/OEGenesisSystemResponderClient.h; sourceTree = "<group>"; };
+		C6B948191365164700A425F0 /* OEGenesisSystemResponderClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = OEGenesisSystemResponderClient.h; path = ../OpenEmu/SystemPlugins/Genesis/OEGenesisSystemResponderClient.h; sourceTree = "<group>"; };
 		C6D120F1171130E700E868A8 /* OpenEmuBase.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; path = OpenEmuBase.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		D2F7E65807B2D6F200F64583 /* CoreData.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreData.framework; path = /System/Library/Frameworks/CoreData.framework; sourceTree = "<absolute>"; };
+		D2F7E65807B2D6F200F64583 /* CoreData.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreData.framework; path = System/Library/Frameworks/CoreData.framework; sourceTree = SDKROOT; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -431,6 +434,8 @@
 				94ED896F14CF933600FF8901 /* ggenie.h */,
 				94ED897014CF933600FF8901 /* md_cart.c */,
 				94ED897114CF933600FF8901 /* md_cart.h */,
+				87709EF22950DA090084AEE0 /* megasd.c */,
+				87709EF12950DA080084AEE0 /* megasd.h */,
 				94ED897214CF933600FF8901 /* sms_cart.c */,
 				94ED897314CF933600FF8901 /* sms_cart.h */,
 				94ED897414CF933600FF8901 /* sram.c */,
@@ -570,15 +575,13 @@
 		089C1669FE841209C02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				BuildIndependentTargetsInParallel = YES;
 				LastUpgradeCheck = 0700;
 			};
 			buildConfigurationList = 1DEB913E08733D840010E9CD /* Build configuration list for PBXProject "GenesisPlus" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 1;
 			knownRegions = (
-				English,
 				en,
 			);
 			mainGroup = 089C166AFE841209C02AAC07 /* GenesisPlus */;
@@ -634,7 +637,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = /usr/bin/openemu_rb_automation.rb;
+			shellScript = "/usr/bin/openemu_rb_automation.rb\n";
 		};
 /* End PBXShellScriptBuildPhase section */
 
@@ -675,6 +678,7 @@
 				94ED8B2914CF933800FF8901 /* membnk.c in Sources */,
 				94ED8B2A14CF933800FF8901 /* memz80.c in Sources */,
 				94ED8B3714CF933800FF8901 /* state.c in Sources */,
+				87709EF32950DA090084AEE0 /* megasd.c in Sources */,
 				94ED8B3814CF933800FF8901 /* system.c in Sources */,
 				87E0514D1B18092700E870E1 /* scrc32.c in Sources */,
 				94ED8B4D14CF933800FF8901 /* vdp_ctrl.c in Sources */,
@@ -715,7 +719,7 @@
 		089C167DFE841241C02AAC07 /* InfoPlist.strings */ = {
 			isa = PBXVariantGroup;
 			children = (
-				089C167EFE841241C02AAC07 /* English */,
+				089C167EFE841241C02AAC07 /* en */,
 			);
 			name = InfoPlist.strings;
 			sourceTree = "<group>";
@@ -735,6 +739,8 @@
 				OTHER_CFLAGS = (
 					"-DLSB_FIRST",
 					"-DUSE_32BPP_RENDERING",
+					"-DMAXROMSIZE=33554432",
+					"-DENABLE_SUB_68K_ADDRESS_ERROR_EXCEPTIONS",
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = "org.openemu.${PRODUCT_NAME:identifier}";
 				PRODUCT_NAME = GenesisPlus;
@@ -755,6 +761,8 @@
 				OTHER_CFLAGS = (
 					"-DLSB_FIRST",
 					"-DUSE_32BPP_RENDERING",
+					"-DMAXROMSIZE=33554432",
+					"-DENABLE_SUB_68K_ADDRESS_ERROR_EXCEPTIONS",
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = "org.openemu.${PRODUCT_NAME:identifier}";
 				PRODUCT_NAME = GenesisPlus;

Info.plist

@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
-	<string>English</string>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleExecutable</key>
 	<string>${EXECUTABLE_NAME}</string>
 	<key>CFBundleIconFile</key>
@@ -19,7 +19,7 @@
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1.7.4.11</string>
+	<string>1.7.5.1</string>
 	<key>NSPrincipalClass</key>
 	<string>OEGameCoreController</string>
 	<key>OEGameCoreClass</key>
@@ -122,7 +122,7 @@
 	<key>OEGameCorePlayerCount</key>
 	<string>8</string>
 	<key>OEProjectURL</key>
-	<string>http://code.google.com/p/genplus-gx</string>
+	<string>https://github.com/ekeeke/Genesis-Plus-GX</string>
 	<key>OESystemIdentifiers</key>
 	<array>
 		<string>openemu.system.sg1000</string>

en.lproj/InfoPlist.strings

@@ -0,0 +1,2 @@
+/* Localized versions of Info.plist keys */
+

genplusgx_source/cart_hw/areplay.c

@@ -1,8 +1,8 @@
 /****************************************************************************
  *  Genesis Plus
- *  Action Replay / Pro Action Replay emulation
+ *  Action Replay / Pro Action Replay hardware support
  *
- *  Copyright (C) 2009-2014  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2009-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -45,8 +45,7 @@ static struct
 {
   uint8 enabled;
   uint8 status;
-  uint8 *rom;
-  uint8 *ram;
+  uint8 ram[0x10000];
   uint16 regs[13];
   uint16 old[4];
   uint16 data[4];
@@ -54,64 +53,52 @@ static struct
 } action_replay;
 
 static void ar_write_regs(uint32 address, uint32 data);
-static void ar_write_regs_2(uint32 address, uint32 data);
+static void ar2_write_reg(uint32 address, uint32 data);
 static void ar_write_ram_8(uint32 address, uint32 data);
 
 void areplay_init(void)
 {
-  int size;
-  
-  memset(&action_replay,0,sizeof(action_replay));
+  action_replay.enabled = action_replay.status = 0;
 
-  /* store Action replay ROM (max. 128k) & RAM (64k) above cartridge ROM + SRAM area */
-  if (cart.romsize > 0x810000) return;
-  action_replay.rom = cart.rom + 0x810000;
-  action_replay.ram = cart.rom + 0x830000;
-
-  /* try to load Action Replay ROM file */
-  size = load_archive(AR_ROM, action_replay.rom, 0x20000, NULL);
-
-  /* detect Action Replay board type */
-  switch (size)
+  /* try to load Action Replay ROM file (max. 64KB) */
+  if (load_archive(AR_ROM, cart.lockrom, 0x10000, NULL) > 0)
   {
-    case 0x8000:  
+    /* detect Action Replay board type */
+    if (!memcmp(cart.lockrom + 0x120, "ACTION REPLAY   ", 16))
     {
-      if (!memcmp(action_replay.rom + 0x120, "ACTION REPLAY   ", 16))
-      {
-        /* normal Action Replay (32K) */
-        action_replay.enabled = TYPE_AR;
-    
-        /* internal registers mapped at $010000-$01ffff */
-        m68k.memory_map[0x01].write16 = ar_write_regs;
-        break;
-      }
-    }
+      /* normal Action Replay (32KB ROM) */
+      action_replay.enabled = TYPE_AR;
 
-    case 0x10000:
-    case 0x20000:
+      /* $0000-$7fff mirrored into $8000-$ffff */
+      memcpy(cart.lockrom + 0x8000, cart.lockrom, 0x8000);
+
+      /* internal registers mapped at $010000-$01ffff */
+      m68k.memory_map[0x01].write16 = ar_write_regs;
+    }
+    else
     {
       /* Read stack pointer MSB */
-      uint8 sp = READ_BYTE(action_replay.rom, 0x01);
+      uint8 sp = cart.lockrom[0x01];
 
       /* Detect board version */
-      if ((sp == 0x42) && !memcmp(action_replay.rom + 0x120, "ACTION REPLAY 2 ", 16))
+      if ((sp == 0x42) && !memcmp(cart.lockrom + 0x120, "ACTION REPLAY 2 ", 16))
       {
-        /* PRO Action Replay 1 (64/128K) */
+        /* PRO Action Replay (2x32KB ROM) */
         action_replay.enabled = TYPE_PRO1;
 
         /* internal registers mapped at $010000-$01ffff */
         m68k.memory_map[0x01].write16 = ar_write_regs;
       }
-      else if ((sp == 0x60) && !memcmp(action_replay.rom + 0x3c6, "ACTION REPLAY II", 16))
+      else if ((sp == 0x60) && !memcmp(cart.lockrom + 0x3c6, "ACTION REPLAY II", 16))
       {
-        /* PRO Action Replay 2 (64K) */
+        /* PRO Action Replay 2 (2x32KB ROM) */
         action_replay.enabled = TYPE_PRO2;
 
-        /* internal registers mapped at $100000-$10ffff */
-        m68k.memory_map[0x10].write16 = ar_write_regs_2;
+        /* internal register mapped at $100000-$10ffff */
+        m68k.memory_map[0x10].write16 = ar2_write_reg;
       }
 
-      /* internal RAM (64k), mapped at $420000-$42ffff or $600000-$60ffff */
+      /* internal RAM (64KB), mapped at $420000-$42ffff or $600000-$60ffff */
       if (action_replay.enabled)
       {
         m68k.memory_map[sp].base      = action_replay.ram;
@@ -120,28 +107,22 @@ void areplay_init(void)
         m68k.memory_map[sp].write8    = ar_write_ram_8;
         m68k.memory_map[sp].write16   = NULL;
       }
-      break;
     }
 
-    default:
-    {
-      break;
-    }
-  }
-
 #ifdef LSB_FIRST
-  if (action_replay.enabled)
-  {
-    int i;
-    for (i= 0; i<size; i+=2)
+    if (action_replay.enabled)
     {
-      /* Byteswap ROM */
-      uint8 temp = action_replay.rom[i];
-      action_replay.rom[i] = action_replay.rom[i+1];
-      action_replay.rom[i+1] = temp;
+      int i;
+      for (i= 0; i<0x10000; i+=2)
+      {
+        /* Byteswap ROM */
+        uint8 temp = cart.lockrom[i];
+        cart.lockrom[i] = cart.lockrom[i+1];
+        cart.lockrom[i+1] = temp;
+      }
     }
-  }
 #endif
+  }
 }
 
 void areplay_shutdown(void)
@@ -166,7 +147,7 @@ void areplay_reset(int hard)
       memset(action_replay.addr, 0, sizeof(action_replay.addr));
 
       /* by default, internal ROM is mapped at $000000-$00FFFF */
-      m68k.memory_map[0].base = action_replay.rom;
+      m68k.memory_map[0].base = cart.lockrom;
 
       /* reset internal RAM on power-on */
       if (hard)
@@ -287,7 +268,7 @@ static void ar_write_regs(uint32 address, uint32 data)
   }
 }
 
-static void ar_write_regs_2(uint32 address, uint32 data)
+static void ar2_write_reg(uint32 address, uint32 data)
 {
   /* enable Cartridge ROM */
   if (((address & 0xff) == 0x78) && (data == 0xffff))
@@ -301,4 +282,3 @@ static void ar_write_ram_8(uint32 address, uint32 data)
   /* byte writes are handled as word writes, with LSB duplicated in MSB (/LWR is not used) */
   *(uint16 *)(action_replay.ram + (address & 0xfffe)) = (data | (data << 8));
 }
-

genplusgx_source/cart_hw/areplay.h

@@ -1,8 +1,8 @@
 /****************************************************************************
  *  Genesis Plus
- *  DATEL Action Replay / Pro Action Replay emulation
+ *  Action Replay / Pro Action Replay hardware support
  *
- *  Copyright (C) 2009-2014  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2009-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/cart_hw/eeprom_93c.c

@@ -47,7 +47,7 @@
 
 T_EEPROM_93C eeprom_93c;
 
-void eeprom_93c_init()
+void eeprom_93c_init(void)
 {
   /* default eeprom state */
   memset(&eeprom_93c, 0, sizeof(T_EEPROM_93C));

genplusgx_source/cart_hw/eeprom_93c.h

@@ -65,7 +65,7 @@ typedef struct
 extern T_EEPROM_93C eeprom_93c;
 
 /* Function prototypes */
-extern void eeprom_93c_init();
+extern void eeprom_93c_init(void);
 extern void eeprom_93c_write(unsigned char data);
 extern unsigned char eeprom_93c_read(void);
 

genplusgx_source/cart_hw/eeprom_i2c.c

@@ -179,7 +179,7 @@ static struct
 /* I2C EEPROM mapper initialization                                 */
 /********************************************************************/
 
-void eeprom_i2c_init()
+void eeprom_i2c_init(void)
 {
   int i = sizeof(i2c_database) / sizeof(T_I2C_GAME) - 1;
 
@@ -246,7 +246,7 @@ void eeprom_i2c_init()
 /* I2C EEPROM internal                                   			*/
 /********************************************************************/
 
-INLINE void Detect_START()
+INLINE void Detect_START(void)
 {
   /* detect SDA HIGH to LOW transition while SCL is held HIGH */
   if (eeprom_i2c.old_scl && eeprom_i2c.scl)
@@ -273,7 +273,7 @@ INLINE void Detect_START()
   }
 }
 
-INLINE void Detect_STOP()
+INLINE void Detect_STOP(void)
 {
   /* detect SDA LOW to HIGH transition while SCL is held HIGH */
   if (eeprom_i2c.old_scl && eeprom_i2c.scl)

genplusgx_source/cart_hw/eeprom_i2c.h

@@ -40,6 +40,6 @@
 #define _EEPROM_I2C_H_
 
 /* Function prototypes */
-extern void eeprom_i2c_init();
+extern void eeprom_i2c_init(void);
 
 #endif

genplusgx_source/cart_hw/eeprom_spi.c

@@ -72,7 +72,7 @@ typedef struct
 
 static T_EEPROM_SPI spi_eeprom;
 
-void eeprom_spi_init()
+void eeprom_spi_init(void)
 {
   /* reset eeprom state */
   memset(&spi_eeprom, 0, sizeof(T_EEPROM_SPI));

genplusgx_source/cart_hw/eeprom_spi.h

@@ -40,7 +40,7 @@
 #define _EEPROM_SPI_H_
 
 /* Function prototypes */
-extern void eeprom_spi_init();
+extern void eeprom_spi_init(void);
 extern void eeprom_spi_write(unsigned char data);
 extern unsigned int eeprom_spi_read(unsigned int address);
 

genplusgx_source/cart_hw/ggenie.c

@@ -1,8 +1,8 @@
 /****************************************************************************
  *  Genesis Plus
- *  Game Genie Hardware emulation
+ *  Game Genie hardware support
  *
- *  Copyright (C) 2009-2014  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2009-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Based on documentation from Charles McDonald
  *  (http://cgfm2.emuviews.com/txt/genie.txt)
@@ -44,7 +44,6 @@
 static struct
 {
   uint8 enabled;
-  uint8 *rom;
   uint16 regs[0x20];
   uint16 old[6];
   uint16 data[6];
@@ -58,29 +57,25 @@ static void ggenie_write_word(unsigned int address, unsigned int data);
 static void ggenie_write_regs(unsigned int offset, unsigned int data);
 
 void ggenie_init(void)
-{  
-  memset(&ggenie,0,sizeof(ggenie));
+{
+  ggenie.enabled = 0;
 
-  /* Store Game Genie ROM (32k) above cartridge ROM + SRAM area */
-  if (cart.romsize > 0x810000) return;
-  ggenie.rom = cart.rom + 0x810000;
-
-  /* Try to load Game Genie ROM file */
-  if (load_archive(GG_ROM, ggenie.rom, 0x8000, NULL) > 0)
+  /* Try to load Game Genie ROM file (32KB) */
+  if (load_archive(GG_ROM, cart.lockrom, 0x8000, NULL) > 0)
   {
 #ifdef LSB_FIRST
     int i;
     for (i=0; i<0x8000; i+=2)
     {
       /* Byteswap ROM */
-      uint8 temp = ggenie.rom[i];
-      ggenie.rom[i] = ggenie.rom[i+1];
-      ggenie.rom[i+1] = temp;
+      uint8 temp = cart.lockrom[i];
+      cart.lockrom[i] = cart.lockrom[i+1];
+      cart.lockrom[i+1] = temp;
     }
 #endif
 
     /* $0000-$7fff mirrored into $8000-$ffff */
-    memcpy(ggenie.rom + 0x8000, ggenie.rom, 0x8000);
+    memcpy(cart.lockrom + 0x8000, cart.lockrom, 0x8000);
 
     /* Game Genie hardware is enabled */
     ggenie.enabled = 1;
@@ -113,7 +108,7 @@ void ggenie_reset(int hard)
     }
 
     /* Game Genie ROM is mapped at $000000-$007fff */
-    m68k.memory_map[0].base = ggenie.rom;
+    m68k.memory_map[0].base = cart.lockrom;
 
     /* Internal registers are mapped at $000000-$00001f */
     m68k.memory_map[0].write8   = ggenie_write_byte;
@@ -214,7 +209,7 @@ static void ggenie_write_regs(unsigned int offset, unsigned int data)
     else
     {
       /* $0000-$7ffff reads mapped to Game Genie ROM */
-      m68k.memory_map[0].base = ggenie.rom;
+      m68k.memory_map[0].base = cart.lockrom;
       m68k.memory_map[0].read8 = NULL; 
       m68k.memory_map[0].read16 = NULL; 
 

genplusgx_source/cart_hw/ggenie.h

@@ -1,8 +1,8 @@
 /****************************************************************************
  *  Genesis Plus
- *  Game Genie Hardware emulation
+ *  Game Genie hardware support
  *
- *  Copyright (C) 2009-2014  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2009-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Based on documentation from Charles McDonald
  *  (http://cgfm2.emuviews.com/txt/genie.txt)

genplusgx_source/cart_hw/md_cart.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Mega Drive cartridge hardware support
  *
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Most cartridge protections were initially documented by Haze
  *  (http://haze.mameworld.info/)
@@ -55,9 +55,16 @@
 #define TYPE_AR 0x02  /* (Pro) Action Replay */
 #define TYPE_SK 0x03  /* Sonic & Knuckles */
 
+/* CD hardware add-on (MD mode) */
+#define HW_ADDON_AUTO    0x00
+#define HW_ADDON_MEGACD  0x01
+#define HW_ADDON_MEGASD  0x02
+#define HW_ADDON_NONE    0x03
+
 /* Special hardware (0x01 & 0x02 reserved for Master System 3-D glasses & Terebi Oekaki) */
 #define HW_J_CART   0x04
 #define HW_LOCK_ON  0x08
+#define HW_MEGASD   0x10
 
 /* Cartridge extra hardware */
 typedef struct
@@ -81,10 +88,10 @@ typedef struct
   uint32 mask;            /* ROM mask */
   uint8 special;          /* custom external hardware (Lock-On, J-Cart, 3-D glasses, Terebi Oekaki,...) */
   cart_hw_t hw;           /* cartridge internal hardware */
-  uint8 rom[MAXROMSIZE];  /* ROM area */
+  uint8 lockrom[0x10000]; /* Game Genie / (Pro) Action Replay Lock-On ROM area (max 64KB) */
+  uint8 rom[MAXROMSIZE];  /* cartridge ROM area */
 } md_cart_t;
 
-
 /* Function prototypes */
 extern void md_cart_init(void);
 extern void md_cart_reset(int hard_reset);

genplusgx_source/cart_hw/megasd.h

@@ -0,0 +1,51 @@
+/****************************************************************************
+ *  Genesis Plus
+ *  MegaSD flashcart CD hardware interface overlay & enhanced ROM mappers
+ *
+ *  Copyright (C) 2020-2022  Eke-Eke (Genesis Plus GX)
+ *
+ *  Redistribution and use of this code or any derivative works are permitted
+ *  provided that the following conditions are met:
+ *
+ *   - Redistributions may not be sold, nor may they be used in a commercial
+ *     product or activity.
+ *
+ *   - Redistributions that are modified from the original source must include the
+ *     complete source code, including the source code for all components used by a
+ *     binary built from the modified sources. However, as a special exception, the
+ *     source code distributed need not include anything that is normally distributed
+ *     (in either source or binary form) with the major components (compiler, kernel,
+ *     and so on) of the operating system on which the executable runs, unless that
+ *     component itself accompanies the executable.
+ *
+ *   - Redistributions must reproduce the above copyright notice, this list of
+ *     conditions and the following disclaimer in the documentation and/or other
+ *     materials provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *  POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************************/
+
+#ifndef _MEGASD_H_
+#define _MEGASD_H_
+
+#include "shared.h"
+
+extern void megasd_reset(void);
+extern void megasd_rom_mapper_w(unsigned int address, unsigned int data);
+extern void megasd_enhanced_ssf2_mapper_w(unsigned int address, unsigned int data);
+extern void megasd_update_cdda(unsigned int samples);
+extern int megasd_context_save(uint8 *state);
+extern int megasd_context_load(uint8 *state);
+
+#endif

genplusgx_source/cart_hw/sms_cart.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  SG-1000, Master System & Game Gear cartridge hardware support
  *
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -47,6 +47,7 @@
 extern void sms_cart_init(void);
 extern void sms_cart_reset(void);
 extern void sms_cart_switch(uint8 mode);
+extern int sms_cart_ram_size(void);
 extern int sms_cart_region_detect(void);
 extern int sms_cart_context_save(uint8 *state);
 extern int sms_cart_context_load(uint8 *state);

genplusgx_source/cart_hw/sram.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Backup RAM support
  *
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -59,13 +59,10 @@ T_SRAM sram;
  *
  * Assuming max. 64k backup RAM throughout
  ****************************************************************************/
-void sram_init()
+void sram_init(void)
 {
-  memset(&sram, 0, sizeof (T_SRAM));
-
-  /* backup RAM data is stored above cartridge ROM area, at $800000-$80FFFF (max. 64K) */
-  if (cart.romsize > 0x800000) return;
-  sram.sram = cart.rom + 0x800000;
+  /* disable Backup RAM by default */
+  sram.detected = sram.on = sram.custom = sram.start = sram.end = 0;
 
   /* initialize Backup RAM */
   if (strstr(rominfo.international,"Sonic 1 Remastered"))
@@ -147,6 +144,13 @@ void sram_init()
       sram.start = 0x400001;
       sram.end = 0x40ffff;
     }
+    else if ((rominfo.checksum == 0x0000) && (rominfo.realchecksum == 0x1f7f) && (READ_BYTE(cart.rom + 0x80000,0x1b0) == 0x52) && (READ_BYTE(cart.rom + 0x80000,0x1b1) == 0x41))
+    {
+      /* Radica - Sensible Soccer Plus edition (use bankswitching) */
+      sram.on = 1;
+      sram.start = 0x200001;
+      sram.end = 0x203fff;
+    }
     else if ((strstr(rominfo.ROMType,"SF") != NULL) && (strstr(rominfo.product,"001") != NULL))
     {
       /* SF-001 */
@@ -214,8 +218,7 @@ unsigned int sram_read_byte(unsigned int address)
 
 unsigned int sram_read_word(unsigned int address)
 {
-  address &= 0xfffe;
-  return (sram.sram[address + 1] | (sram.sram[address] << 8));
+  return READ_WORD(sram.sram, address & 0xfffe);
 }
 
 void sram_write_byte(unsigned int address, unsigned int data)
@@ -225,7 +228,5 @@ void sram_write_byte(unsigned int address, unsigned int data)
 
 void sram_write_word(unsigned int address, unsigned int data)
 {
-  address &= 0xfffe;
-  sram.sram[address] = data >> 8;
-  sram.sram[address + 1] = data & 0xff;
+  WRITE_WORD(sram.sram, address & 0xfffe, data);
 }

genplusgx_source/cart_hw/sram.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Backup RAM support
  *
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -47,11 +47,11 @@ typedef struct
   uint32 start;
   uint32 end;
   uint32 crc;
-  uint8 *sram;
+  uint8 sram[0x10000];
 } T_SRAM;
 
 /* Function prototypes */
-extern void sram_init();
+extern void sram_init(void);
 extern unsigned int sram_read_byte(unsigned int address);
 extern unsigned int sram_read_word(unsigned int address);
 extern void sram_write_byte(unsigned int address, unsigned int data);

genplusgx_source/cd_hw/cd_cart.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  CD compatible ROM/RAM cartridge support
  *
- *  Copyright (C) 2012-2016 Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2021 Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -38,7 +38,6 @@
 
 #include "shared.h"
 
-
 /*--------------------------------------------------------------------------*/
 /* backup RAM cartridge (max. 512KB)                                        */
 /*--------------------------------------------------------------------------*/

genplusgx_source/cd_hw/cd_cart.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  CD compatible ROM/RAM cartridge support
  *
- *  Copyright (C) 2012-2016 Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2021 Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -40,7 +40,8 @@
  /* CD compatible ROM/RAM cartridge */
 typedef struct 
 {
-  uint8 area[0x840080];  /* cartridge ROM/RAM area (max. 8MB ROM + 64KB backup memory + Pro Action Replay 128KB ROM / 64KB RAM + cartridge infos) */
+  uint8 reserved[0x80];  /* reserved for ROM cartridge infos (see md_cart.h) */
+  uint8 area[0x810000];  /* cartridge ROM/RAM area (max. 8MB ROM + Pro Action Replay 64KB ROM) */
   uint8 boot;            /* cartridge boot mode (0x00: boot from CD with ROM/RAM cartridge enabled, 0x40: boot from ROM cartridge with CD enabled) */
   uint8 id;              /* RAM cartridge ID (related to RAM size, 0 if disabled) */
   uint8 prot;            /* RAM cartridge write protection */

genplusgx_source/cd_hw/cdc.c

@@ -1,8 +1,8 @@
 /***************************************************************************************
  *  Genesis Plus
- *  CD data controller (LC89510 compatible)
+ *  CD data controller (LC8951x compatible)
  *
- *  Copyright (C) 2012-2015  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2019  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -51,7 +51,6 @@
 
 /* CTRL0 register bitmasks */
 #define BIT_DECEN   0x80
-#define BIT_E01RQ   0x20
 #define BIT_AUTORQ  0x10
 #define BIT_WRRQ    0x04
 
@@ -60,7 +59,7 @@
 #define BIT_FORMRQ  0x04
 #define BIT_SHDREN  0x01
 
-/* CTRL2 register bitmask */
+/* STAT3 register bitmask */
 #define BIT_VALST   0x80
 
 /* TODO: figure exact DMA transfer rate */
@@ -248,7 +247,7 @@ void cdc_decoder_update(uint32 header)
   /* data decoding enabled ? */
   if (cdc.ctrl[0] & BIT_DECEN)
   {
-    /* update HEAD registers */
+    /* update HEADx registers with current block header */
     *(uint32 *)(cdc.head[0]) = header;
 
     /* set !VALST */
@@ -285,18 +284,50 @@ void cdc_decoder_update(uint32 header)
       /* CDC buffer address */
       offset = cdc.pt.w & 0x3fff;
 
-      /* write CDD block header (4 bytes) */
+      /* write current block header to RAM buffer (4 bytes) */
       *(uint32 *)(cdc.ram + offset) = header;
+      offset += 4;
 
-      /* write CDD block data (2048 bytes) */
-      cdd_read_data(cdc.ram + 4 + offset);
+      /* check decoded block mode */
+      if (cdc.head[0][3] == 0x01)
+      {
+        /* write Mode 1 user data to RAM buffer (2048 bytes) */
+        cdd_read_data(cdc.ram + offset, NULL);
+        offset += 2048;
+      }
+      else
+      {
+        /* check if CD-ROM Mode 2 decoding is enabled */
+        if (cdc.ctrl[1] & BIT_MODRQ)
+        {
+          /* update HEADx registers with current block sub-header & write Mode 2 user data to RAM buffer (max 2328 bytes) */
+          cdd_read_data(cdc.ram + offset + 8, cdc.head[1]);
+
+          /* write current block sub-header to RAM buffer (4 bytes x 2) */
+          *(uint32 *)(cdc.ram + offset) = *(uint32 *)(cdc.head[1]);
+          *(uint32 *)(cdc.ram + offset + 4) = *(uint32 *)(cdc.head[1]);
+          offset += 2336;
+        }
+        else
+        {
+          /* update HEADx registers with current block sub-header & write Mode 2 user data to RAM buffer (max 2328 bytes) */
+          /* NB: when Mode 2 decoding is disabled, sub-header is apparently not written to RAM buffer (required by Wonder Library) */
+          cdd_read_data(cdc.ram + offset, cdc.head[1]);
+          offset += 2328;
+        }
+
+        /* set STAT2 register FORM bit according to sub-header FORM bit when CTRL0 register AUTORQ bit is set */
+        if (cdc.ctrl[0] & BIT_AUTORQ)
+        {
+          cdc.stat[2] = (cdc.ctrl[1] & BIT_MODRQ) | ((cdc.head[1][2] & 0x20) >> 3);
+        }
+      }
 
       /* take care of buffer overrun */
-      offset = offset + 2048 + 4 - 0x4000;
-      if (offset > 0)
+      if (offset > 0x4000)
       {
         /* data should be written at the start of buffer */
-        memcpy(cdc.ram, cdc.ram + 0x4000, offset);
+        memcpy(cdc.ram, cdc.ram + 0x4000, offset - 0x4000);
       }
     }
   }
@@ -484,15 +515,15 @@ void cdc_reg_w(unsigned char data)
       /* set CRCOK bit only if decoding is enabled */
       cdc.stat[0] = data & BIT_DECEN;
 
-      /* update decoding mode */
+      /* update STAT2 register */
       if (data & BIT_AUTORQ)
       {
-        /* set MODE bit according to CTRL1 register & clear FORM bit */
-        cdc.stat[2] = cdc.ctrl[1] & BIT_MODRQ;
+        /* set MODE bit according to CTRL1 register MODRQ bit & set FORM bit according to sub-header FORM bit*/
+        cdc.stat[2] = (cdc.ctrl[1] & BIT_MODRQ) | ((cdc.head[1][2] & 0x20) >> 3);
       }
       else 
       {
-        /* set MODE & FORM bits according to CTRL1 register */
+        /* set MODE & FORM bits according to CTRL1 register MODRQ & FORMRQ bits */
         cdc.stat[2] = cdc.ctrl[1] & (BIT_MODRQ | BIT_FORMRQ);
       }
 
@@ -503,15 +534,15 @@ void cdc_reg_w(unsigned char data)
 
     case 0x0b:  /* CTRL1 */
     {
-      /* update decoding mode */
+      /* update STAT2 register */
       if (cdc.ctrl[0] & BIT_AUTORQ)
       {
-        /* set MODE bit according to CTRL1 register & clear FORM bit */
-        cdc.stat[2] = data & BIT_MODRQ;
+        /* set MODE bit according to CTRL1 register MODRQ bit & set FORM bit according to sub-header FORM bit*/
+        cdc.stat[2] = (data & BIT_MODRQ) | ((cdc.head[1][2] & 0x20) >> 3);
       }
       else 
       {
-        /* set MODE & FORM bits according to CTRL1 register */
+        /* set MODE & FORM bits according to CTRL1 register MODRQ & FORMRQ bits */
         cdc.stat[2] = data & (BIT_MODRQ | BIT_FORMRQ);
       }
 
@@ -612,7 +643,7 @@ unsigned char cdc_reg_r(void)
 
       /* clear pending decoder interrupt */
       cdc.ifstat |= BIT_DECI;
-      
+
 #if 0
       /* no pending data transfer end interrupt */
       if ((cdc.ifstat | BIT_DTEI) || !(cdc.ifctrl & BIT_DTEIEN))
@@ -639,13 +670,8 @@ unsigned short cdc_host_r(void)
   /* check if data is available */
   if (scd.regs[0x04>>1].byte.h & 0x40)
   {
-    /* read data word from CDC RAM buffer */
-    uint16 data = *(uint16 *)(cdc.ram + (cdc.dac.w & 0x3ffe));
-
-#ifdef LSB_FIRST
-    /* source data is stored in big endian format */
-    data = ((data >> 8) | (data << 8)) & 0xffff;
-#endif
+    /* read 16-bit word from CDC RAM buffer (big-endian format) */
+    uint16 data = READ_WORD(cdc.ram, cdc.dac.w & 0x3ffe);
 
 #ifdef LOG_CDC
     error("CDC host read 0x%04x -> 0x%04x (dbc=0x%x) (%X)\n", cdc.dac.w, data, cdc.dbc.w, s68k.pc);

genplusgx_source/cd_hw/cdc.h

@@ -1,8 +1,8 @@
 /***************************************************************************************
  *  Genesis Plus
- *  CD data controller (LC89510 compatible)
+ *  CD data controller (LC8951x compatible)
  *
- *  Copyright (C) 2012-2015  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2019  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/cd_hw/cdd.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  CD drive processor & CD-DA fader
  *
- *  Copyright (C) 2012-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -86,6 +86,8 @@ typedef struct
   int start;
   int end;
   int type;
+  int loopEnabled;
+  int loopOffset;
 } track_t; 
 
 /* CD TOC */
@@ -133,11 +135,13 @@ typedef struct
 extern void cdd_init(int samplerate);
 extern void cdd_reset(void);
 extern int cdd_context_save(uint8 *state);
-extern int cdd_context_load(uint8 *state);
+extern int cdd_context_load(uint8 *state, char *version);
 extern int cdd_load(char *filename, char *header);
 extern void cdd_unload(void);
-extern void cdd_read_data(uint8 *dst);
+extern void cdd_read_data(uint8 *dst, uint8 *subheader);
+extern void cdd_seek_audio(int index, int lba);
 extern void cdd_read_audio(unsigned int samples);
+extern void cdd_update_audio(unsigned int samples);
 extern void cdd_update(void);
 extern void cdd_process(void);
 

genplusgx_source/cd_hw/gfx.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  CD graphics processor
  *
- *  Copyright (C) 2012  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -47,10 +47,10 @@ void word_ram_0_dma_w(unsigned int words)
 
   /* CDC buffer source address */
   uint16 src_index = cdc.dac.w & 0x3ffe;
-  
+
   /* WORD-RAM destination address*/
   uint32 dst_index = (scd.regs[0x0a>>1].w << 3) & 0x1fffe;
-  
+
   /* update DMA destination address */
   scd.regs[0x0a>>1].w += (words >> 2);
 
@@ -60,13 +60,8 @@ void word_ram_0_dma_w(unsigned int words)
   /* DMA transfer */
   while (words--)
   {
-    /* read 16-bit word from CDC buffer */
-    data = *(uint16 *)(cdc.ram + src_index);
-
-#ifdef LSB_FIRST
-    /* source data is stored in big endian format */
-    data = ((data >> 8) | (data << 8)) & 0xffff;
-#endif
+    /* read 16-bit word from CDC RAM buffer (big-endian format) */
+    data = READ_WORD(cdc.ram, src_index);
 
     /* write 16-bit word to WORD-RAM */
     *(uint16 *)(scd.word_ram[0] + dst_index) = data ;
@@ -85,10 +80,10 @@ void word_ram_1_dma_w(unsigned int words)
 
   /* CDC buffer source address */
   uint16 src_index = cdc.dac.w & 0x3ffe;
-  
+
   /* WORD-RAM destination address*/
   uint32 dst_index = ((scd.regs[0x0a>>1].w << 3) & 0x1fffe);
-  
+
   /* update DMA destination address */
   scd.regs[0x0a>>1].w += (words >> 2);
 
@@ -98,13 +93,8 @@ void word_ram_1_dma_w(unsigned int words)
   /* DMA transfer */
   while (words--)
   {
-    /* read 16-bit word from CDC buffer */
-    data = *(uint16 *)(cdc.ram + src_index);
-
-#ifdef LSB_FIRST
-    /* source data is stored in big endian format */
-    data = ((data >> 8) | (data << 8)) & 0xffff;
-#endif
+    /* read 16-bit word from CDC RAM buffer (big-endian format) */
+    data = READ_WORD(cdc.ram, src_index);
 
     /* write 16-bit word to WORD-RAM */
     *(uint16 *)(scd.word_ram[1] + dst_index) = data ;
@@ -123,10 +113,10 @@ void word_ram_2M_dma_w(unsigned int words)
 
   /* CDC buffer source address */
   uint16 src_index = cdc.dac.w & 0x3ffe;
-  
+
   /* WORD-RAM destination address*/
   uint32 dst_index = (scd.regs[0x0a>>1].w << 3) & 0x3fffe;
-  
+
   /* update DMA destination address */
   scd.regs[0x0a>>1].w += (words >> 2);
 
@@ -136,13 +126,8 @@ void word_ram_2M_dma_w(unsigned int words)
   /* DMA transfer */
   while (words--)
   {
-    /* read 16-bit word from CDC buffer */
-    data = *(uint16 *)(cdc.ram + src_index);
-
-#ifdef LSB_FIRST
-    /* source data is stored in big endian format */
-    data = ((data >> 8) | (data << 8)) & 0xffff;
-#endif
+    /* read 16-bit word from CDC RAM buffer (big-endian format) */
+    data = READ_WORD(cdc.ram, src_index);
 
     /* write 16-bit word to WORD-RAM */
     *(uint16 *)(scd.word_ram_2M + dst_index) = data ;
@@ -475,6 +460,9 @@ INLINE void gfx_render(uint32 bufferIndex, uint32 width)
   uint16 stamp_data;
   uint32 stamp_index;
 
+  /* bits [1:0] of 32x32 pixels stamp index are masked (see Chuck Rock II - Son of Chuck) */
+  uint32 stamp_mask = (scd.regs[0x58>>1].byte.l & 0x02) ? 0x7fc : 0x7ff;
+
   /* pixel map start position for current line (13.3 format converted to 13.11) */
   uint32 xpos = *gfx.tracePtr++ << 8;
   uint32 ypos = *gfx.tracePtr++ << 8;
@@ -517,7 +505,7 @@ INLINE void gfx_render(uint32 bufferIndex, uint32 width)
       /*        c = cell offset  (0-3 for 16x16, 0-15 for 32x32)        */
       /*      yyy = line offset  (0-7)                                  */
       /*      xxx = pixel offset (0-7)                                  */
-      stamp_index = (stamp_data & 0x7ff) << 8;
+      stamp_index = (stamp_data & stamp_mask) << 8;
 
       if (stamp_index)
       {
@@ -598,132 +586,146 @@ INLINE void gfx_render(uint32 bufferIndex, uint32 width)
 
 void gfx_start(unsigned int base, int cycles)
 {
-  /* make sure 2M mode is enabled */
-  if (!(scd.regs[0x02>>1].byte.l & 0x04))
+  uint32 mask;
+
+  /* trace vector pointer */
+  gfx.tracePtr = (uint16 *)(scd.word_ram_2M + ((base << 2) & 0x3fff8));
+
+  /* stamps & stamp map size */
+  switch ((scd.regs[0x58>>1].byte.l >> 1) & 0x03)
   {
-    uint32 mask;
-    
-    /* trace vector pointer */
-    gfx.tracePtr = (uint16 *)(scd.word_ram_2M + ((base << 2) & 0x3fff8));
+    case 0:
+      gfx.dotMask = 0x07ffff;   /* 256x256 dots/map  */
+      gfx.stampShift = 11 + 4;  /* 16x16 dots/stamps */
+      gfx.mapShift = 4;         /* 16x16 stamps/map  */
+      mask = 0x3fe00;           /* 512 bytes/table   */
+      break;
 
-    /* stamps & stamp map size */
-    switch ((scd.regs[0x58>>1].byte.l >> 1) & 0x03)
-    {
-      case 0:
-        gfx.dotMask = 0x07ffff;   /* 256x256 dots/map  */
-        gfx.stampShift = 11 + 4;  /* 16x16 dots/stamps */
-        gfx.mapShift = 4;         /* 16x16 stamps/map  */
-        mask = 0x3fe00;           /* 512 bytes/table   */
-        break;
+    case 1:
+      gfx.dotMask = 0x07ffff;   /* 256x256 dots/map  */
+      gfx.stampShift = 11 + 5;  /* 32x32 dots/stamps */
+      gfx.mapShift = 3;         /* 8x8 stamps/map    */
+      mask = 0x3ff80;           /* 128 bytes/table   */
+      break;
 
-      case 1:
-        gfx.dotMask = 0x07ffff;   /* 256x256 dots/map  */
-        gfx.stampShift = 11 + 5;  /* 32x32 dots/stamps */
-        gfx.mapShift = 3;         /* 8x8 stamps/map    */
-        mask = 0x3ff80;           /* 128 bytes/table   */
-        break;
+    case 2:
+      gfx.dotMask = 0x7fffff;   /* 4096*4096 dots/map */
+      gfx.stampShift = 11 + 4;  /* 16x16 dots/stamps  */
+      gfx.mapShift = 8;         /* 256x256 stamps/map */
+      mask = 0x20000;           /* 131072 bytes/table */
+      break;
 
-      case 2:
-        gfx.dotMask = 0x7fffff;   /* 4096*4096 dots/map */
-        gfx.stampShift = 11 + 4;  /* 16x16 dots/stamps  */
-        gfx.mapShift = 8;         /* 256x256 stamps/map */
-        mask = 0x20000;           /* 131072 bytes/table */
-        break;
-
-      case 3:
-        gfx.dotMask = 0x7fffff;   /* 4096*4096 dots/map */
-        gfx.stampShift = 11 + 5;  /* 32x32 dots/stamps  */
-        gfx.mapShift = 7;         /* 128x128 stamps/map */
-        mask = 0x38000;           /* 32768 bytes/table  */
-        break;
-    }
-
-    /* stamp map table base address */
-    gfx.mapPtr = (uint16 *)(scd.word_ram_2M + ((scd.regs[0x5a>>1].w << 2) & mask));
-
-    /* image buffer column offset (64 pixels/cell, minus 7 pixels to restart at cell beginning) */
-    gfx.bufferOffset = (((scd.regs[0x5c>>1].byte.l & 0x1f) + 1) << 6) - 7;
-
-    /* image buffer start index in dot units (2 pixels/byte) */
-    gfx.bufferStart = (scd.regs[0x5e>>1].w << 3) & 0x7ffc0;
-
-    /* add image buffer horizontal dot offset */
-    gfx.bufferStart += (scd.regs[0x60>>1].byte.l & 0x3f);
-
-    /* reset GFX chip cycle counter */
-    gfx.cycles = cycles;
-
-    /* update GFX chip timings (see AC3:Thunderhawk / Thunderstrike) */
-    gfx.cyclesPerLine = 4 * 5 * scd.regs[0x62>>1].w; 
-
-    /* start graphics operation */
-    scd.regs[0x58>>1].byte.h = 0x80;
+    case 3:
+      gfx.dotMask = 0x7fffff;   /* 4096*4096 dots/map */
+      gfx.stampShift = 11 + 5;  /* 32x32 dots/stamps  */
+      gfx.mapShift = 7;         /* 128x128 stamps/map */
+      mask = 0x38000;           /* 32768 bytes/table  */
+      break;
   }
+
+  /* stamp map table base address */
+  gfx.mapPtr = (uint16 *)(scd.word_ram_2M + ((scd.regs[0x5a>>1].w << 2) & mask));
+
+  /* image buffer column offset (64 pixels/cell, minus 7 pixels to restart at cell beginning) */
+  gfx.bufferOffset = (((scd.regs[0x5c>>1].byte.l & 0x1f) + 1) << 6) - 7;
+
+  /* image buffer start index in dot units (2 pixels/byte) */
+  gfx.bufferStart = (scd.regs[0x5e>>1].w << 3) & 0x7ffc0;
+
+  /* add image buffer horizontal dot offset */
+  gfx.bufferStart += (scd.regs[0x60>>1].byte.l & 0x3f);
+
+  /* reset GFX chip cycle counter */
+  gfx.cycles = cycles;
+
+  /* update GFX chip timings (see AC3:Thunderhawk / Thunderstrike, Night Striker) */
+  /* number of Word-RAM accesses per image buffer rendered line:                  */
+  /*  . 4 initial read accesses (Xposition, Yposition, Xoffset and Yoffset)       */
+  /*  . 2 read accesses per rendered pixels (stamp map + stamp pixel data)        */
+  /*  . 1 read-modify-write access per group of 4 rendered pixels                 */
+  /* each access (read or read-modify-write) takes 3 SUB-CPU cycles by default    */
+  /* each access can be delayed by 1 to 3 CPU cycles in case of refresh or SUB-CPU access occuring on the same Word-RAM bank (not emulated) */
+  /* reference: https://github.com/MiSTer-devel/MegaCD_MiSTer/blob/master/docs/mcd%20logs/graphics_operations_and_68k_wordram_access.jpg */
+  /* TODO: figure what happen exactly when pixel offset is different from 0 */
+  /*       for the moment, one additional read-modify-write access is assumed at the start if pixel offset is not aligned to 4 pixels */
+  gfx.cyclesPerLine = 4 * 3 * (4 + 2 * scd.regs[0x62>>1].w + ((scd.regs[0x62>>1].w + (scd.regs[0x60>>1].byte.l & 0x03) + 3) >> 2));
+
+  /* start graphics operation */
+  scd.regs[0x58>>1].byte.h = 0x80;
 }
 
 void gfx_update(int cycles)
 {
-  /* synchronize GFX chip with SUB-CPU */
-  cycles -= gfx.cycles;
-
-  /* make sure SUB-CPU is ahead */
-  if (cycles > 0)
+  /* make sure Word-RAM is assigned to SUB-CPU in 2M mode */
+  if ((scd.regs[0x02>>1].byte.l & 0x05) != 0x01)
   {
-    /* number of lines to process */
-    unsigned int lines = (cycles + gfx.cyclesPerLine - 1) / gfx.cyclesPerLine;
+    /* synchronize GFX processing with SUB-CPU */
+    cycles -= gfx.cycles;
 
-    /* check against remaining lines */
-    if (lines < scd.regs[0x64>>1].byte.l)
+    /* make sure SUB-CPU is ahead */
+    if (cycles > 0)
     {
-      /* update Vdot remaining size */
-      scd.regs[0x64>>1].byte.l -= lines;
+      /* number of lines to process */
+      unsigned int lines = (cycles + gfx.cyclesPerLine - 1) / gfx.cyclesPerLine;
 
-      /* increment cycle counter */
-      gfx.cycles += lines * gfx.cyclesPerLine;
-    }
-    else
-    {
-      /* process remaining lines */
-      lines = scd.regs[0x64>>1].byte.l;
-
-      /* clear Vdot remaining size */
-      scd.regs[0x64>>1].byte.l = 0;
-
-      /* end of graphics operation */
-      scd.regs[0x58>>1].byte.h = 0;
- 
-      /* SUB-CPU idle on register $58 polling ? */
-      if (s68k.stopped & (1<<0x08))
+      /* check against remaining lines */
+      if (lines < scd.regs[0x64>>1].byte.l)
       {
-        /* sync SUB-CPU with GFX chip */
-        s68k.cycles = scd.cycles;
+        /* update Vdot remaining size */
+        scd.regs[0x64>>1].byte.l -= lines;
 
-        /* restart SUB-CPU */
-        s68k.stopped = 0;
+        /* increment cycle counter */
+        gfx.cycles += lines * gfx.cyclesPerLine;
+      }
+      else
+      {
+        /* process remaining lines */
+        lines = scd.regs[0x64>>1].byte.l;
+
+        /* clear Vdot remaining size */
+        scd.regs[0x64>>1].byte.l = 0;
+
+        /* end of graphics operation */
+        scd.regs[0x58>>1].byte.h = 0;
+   
+        /* SUB-CPU idle on register $58 polling ? */
+        if (s68k.stopped & (1<<0x08))
+        {
+          /* sync SUB-CPU with GFX chip */
+          s68k.cycles = scd.cycles;
+
+          /* restart SUB-CPU */
+          s68k.stopped = 0;
 #ifdef LOG_SCD
-        error("s68k started from %d cycles\n", s68k.cycles);
+          error("s68k started from %d cycles\n", s68k.cycles);
 #endif
+        }
+
+        /* level 1 interrupt enabled ? */
+        if (scd.regs[0x32>>1].byte.l & 0x02)
+        {
+          /* trigger level 1 interrupt */
+          scd.pending |= (1 << 1);
+
+          /* update IRQ level */
+          s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
+        }
       }
 
-      /* level 1 interrupt enabled ? */
-      if (scd.regs[0x32>>1].byte.l & 0x02)
+      /* render lines */
+      while (lines--)
       {
-        /* trigger level 1 interrupt */
-        scd.pending |= (1 << 1);
+        /* process dots to image buffer */
+        gfx_render(gfx.bufferStart, scd.regs[0x62>>1].w);
 
-        /* update IRQ level */
-        s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
+        /* increment image buffer start index for next line (8 pixels/line) */
+        gfx.bufferStart += 8;
       }
     }
-
-    /* render lines */
-    while (lines--)
-    {
-      /* process dots to image buffer */
-      gfx_render(gfx.bufferStart, scd.regs[0x62>>1].w);
-
-      /* increment image buffer start index for next line (8 pixels/line) */
-      gfx.bufferStart += 8;
-    }
+  }
+  else
+  {
+    /* GFX processing is halted */
+    gfx.cycles = cycles;
   }
 }

genplusgx_source/cd_hw/gfx.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  CD graphics processor
  *
- *  Copyright (C) 2012  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/cd_hw/libchdr/deps/libFLAC/cpu.c

@@ -39,7 +39,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#if defined(_MSC_VER) && !defined(_XBOX)
+#if defined(_MSC_VER) && !defined(_XBOX) && _MSC_VER > 1310
 #  include <intrin.h> /* for __cpuid() and _xgetbv() */
 #endif
 
@@ -49,11 +49,6 @@
 
 #ifdef DEBUG
 #include <stdio.h>
-
-#define dfprintf fprintf
-#else
-/* This is bad practice, it should be a static void empty function */
-#define dfprintf(file, format, ...)
 #endif
 
 
@@ -138,21 +133,23 @@ ia32_cpu_info (FLAC__CPUInfo *info)
 		info->ia32.avx2  = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2   ) ? true : false;
 	}
 
-	dfprintf(stderr, "CPU info (IA-32):\n");
-	dfprintf(stderr, "  CMOV ....... %c\n", info->ia32.cmov    ? 'Y' : 'n');
-	dfprintf(stderr, "  MMX ........ %c\n", info->ia32.mmx     ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE ........ %c\n", info->ia32.sse     ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE2 ....... %c\n", info->ia32.sse2    ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE3 ....... %c\n", info->ia32.sse3    ? 'Y' : 'n');
-	dfprintf(stderr, "  SSSE3 ...... %c\n", info->ia32.ssse3   ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE41 ...... %c\n", info->ia32.sse41   ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE42 ...... %c\n", info->ia32.sse42   ? 'Y' : 'n');
+#ifdef DEBUG
+	fprintf(stderr, "CPU info (IA-32):\n");
+	fprintf(stderr, "  CMOV ....... %c\n", info->ia32.cmov    ? 'Y' : 'n');
+	fprintf(stderr, "  MMX ........ %c\n", info->ia32.mmx     ? 'Y' : 'n');
+	fprintf(stderr, "  SSE ........ %c\n", info->ia32.sse     ? 'Y' : 'n');
+	fprintf(stderr, "  SSE2 ....... %c\n", info->ia32.sse2    ? 'Y' : 'n');
+	fprintf(stderr, "  SSE3 ....... %c\n", info->ia32.sse3    ? 'Y' : 'n');
+	fprintf(stderr, "  SSSE3 ...... %c\n", info->ia32.ssse3   ? 'Y' : 'n');
+	fprintf(stderr, "  SSE41 ...... %c\n", info->ia32.sse41   ? 'Y' : 'n');
+	fprintf(stderr, "  SSE42 ...... %c\n", info->ia32.sse42   ? 'Y' : 'n');
 
 	if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
-		dfprintf(stderr, "  AVX ........ %c\n", info->ia32.avx     ? 'Y' : 'n');
-		dfprintf(stderr, "  FMA ........ %c\n", info->ia32.fma     ? 'Y' : 'n');
-		dfprintf(stderr, "  AVX2 ....... %c\n", info->ia32.avx2    ? 'Y' : 'n');
+		fprintf(stderr, "  AVX ........ %c\n", info->ia32.avx     ? 'Y' : 'n');
+		fprintf(stderr, "  FMA ........ %c\n", info->ia32.fma     ? 'Y' : 'n');
+		fprintf(stderr, "  AVX2 ....... %c\n", info->ia32.avx2    ? 'Y' : 'n');
 	}
+#endif
 
 	/*
 	 * now have to check for OS support of AVX instructions
@@ -164,9 +161,10 @@ ia32_cpu_info (FLAC__CPUInfo *info)
 		info->ia32.fma     = false;
 	}
 
-	if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
-		dfprintf(stderr, "  AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
-	}
+#ifdef DEBUG
+	if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED)
+		fprintf(stderr, "  AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
+#endif
 #else
 	info->use_asm = false;
 #endif
@@ -199,17 +197,20 @@ x86_64_cpu_info (FLAC__CPUInfo *info)
 		info->x86.avx2  = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2   ) ? true : false;
 	}
 
-	dfprintf(stderr, "CPU info (x86-64):\n");
-	dfprintf(stderr, "  SSE3 ....... %c\n", info->x86.sse3  ? 'Y' : 'n');
-	dfprintf(stderr, "  SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
-	dfprintf(stderr, "  SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
+#ifdef DEBUG
+	fprintf(stderr, "CPU info (x86-64):\n");
+	fprintf(stderr, "  SSE3 ....... %c\n", info->x86.sse3  ? 'Y' : 'n');
+	fprintf(stderr, "  SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
+	fprintf(stderr, "  SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
+	fprintf(stderr, "  SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
 
-	if (FLAC__AVX_SUPPORTED) {
-		dfprintf(stderr, "  AVX ........ %c\n", info->x86.avx   ? 'Y' : 'n');
-		dfprintf(stderr, "  FMA ........ %c\n", info->x86.fma   ? 'Y' : 'n');
-		dfprintf(stderr, "  AVX2 ....... %c\n", info->x86.avx2  ? 'Y' : 'n');
+	if (FLAC__AVX_SUPPORTED)
+   {
+		fprintf(stderr, "  AVX ........ %c\n", info->x86.avx   ? 'Y' : 'n');
+		fprintf(stderr, "  FMA ........ %c\n", info->x86.fma   ? 'Y' : 'n');
+		fprintf(stderr, "  AVX2 ....... %c\n", info->x86.avx2  ? 'Y' : 'n');
 	}
+#endif
 
 	/*
 	 * now have to check for OS support of AVX instructions
@@ -221,9 +222,10 @@ x86_64_cpu_info (FLAC__CPUInfo *info)
 		info->x86.fma     = false;
 	}
 
-	if (FLAC__AVX_SUPPORTED) {
-		dfprintf(stderr, "  AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
-	}
+#ifdef DEBUG
+	if (FLAC__AVX_SUPPORTED)
+		fprintf(stderr, "  AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
+#endif
 #else
 	/* Silence compiler warnings. */
 	(void) info;

genplusgx_source/cd_hw/libchdr/deps/libFLAC/include/private/bitmath.h

@@ -38,7 +38,7 @@
 
 #include "share/compat.h"
 
-#if defined(_MSC_VER) && !defined(_XBOX)
+#if defined(_MSC_VER) && !defined(_XBOX) && _MSC_VER > 1310
 #include <intrin.h> /* for _BitScanReverse* */
 #endif
 

genplusgx_source/cd_hw/libchdr/deps/libFLAC/include/share/compat.h

@@ -49,7 +49,7 @@
 #if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
 #include <sys/types.h> /* for off_t */
 #define FLAC__off_t __int64 /* use this instead of off_t to fix the 2 GB limit */
-#if !defined __MINGW32__
+#if !defined __MINGW32__ && _MSC_VER && _MSC_VER > 1310
 #define fseeko _fseeki64
 #define ftello _ftelli64
 #else /* MinGW */

genplusgx_source/cd_hw/libchdr/src/chd.c

@@ -201,6 +201,7 @@ typedef struct _zlib_allocator zlib_allocator;
 struct _zlib_allocator
 {
 	UINT32 *				allocptr[MAX_ZLIB_ALLOCS];
+	UINT32 *				allocptr2[MAX_ZLIB_ALLOCS];
 };
 
 typedef struct _zlib_codec_data zlib_codec_data;
@@ -220,10 +221,11 @@ struct _lzma_allocator
  	void (*Free)(void *p, void *address); /* address can be 0 */
 	void (*FreeSz)(void *p, void *address, size_t size); /* address can be 0 */
 	uint32_t*	allocptr[MAX_LZMA_ALLOCS];
+	uint32_t*	allocptr2[MAX_LZMA_ALLOCS];
 };
 
 typedef struct _lzma_codec_data lzma_codec_data;
-struct _lzma_codec_data 
+struct _lzma_codec_data
 {
 	CLzmaDec		decoder;
 	lzma_allocator	allocator;
@@ -375,6 +377,7 @@ void lzma_allocator_init(void* p)
 
 	/* reset pointer list */
 	memset(codec->allocptr, 0, sizeof(codec->allocptr));
+	memset(codec->allocptr2, 0, sizeof(codec->allocptr2));
 	codec->Alloc = lzma_fast_alloc;
 	codec->Free = lzma_fast_free;
 }
@@ -403,11 +406,16 @@ void lzma_allocator_free(void* p )
  *-------------------------------------------------
  */
 
+/* Huge alignment values for possible SIMD optimization by compiler (NEON, SSE, AVX) */
+#define LZMA_MIN_ALIGNMENT_BITS 512
+#define LZMA_MIN_ALIGNMENT_BYTES (LZMA_MIN_ALIGNMENT_BITS / 8)
+
 void *lzma_fast_alloc(void *p, size_t size)
 {
 	int scan;
-   uint32_t *addr;
+	uint32_t *addr        = NULL;
 	lzma_allocator *codec = (lzma_allocator *)(p);
+	uintptr_t vaddr = 0;
 
 	/* compute the size, rounding to the nearest 1k */
 	size = (size + 0x3ff) & ~0x3ff;
@@ -420,28 +428,37 @@ void *lzma_fast_alloc(void *p, size_t size)
 		{
 			/* set the low bit of the size so we don't match next time */
 			*ptr |= 1;
-			return ptr + 1;
+
+			/* return aligned address of the block */
+			return codec->allocptr2[scan];
 		}
 	}
 
 	/* alloc a new one and put it into the list */
-	addr = (uint32_t *)malloc(sizeof(uint8_t) * (size + sizeof(uint32_t)));
+	addr = (uint32_t *)malloc(size + sizeof(uint32_t) + LZMA_MIN_ALIGNMENT_BYTES);
 	if (addr==NULL)
 		return NULL;
 	for (scan = 0; scan < MAX_LZMA_ALLOCS; scan++)
 	{
 		if (codec->allocptr[scan] == NULL)
 		{
+			/* store block address */
 			codec->allocptr[scan] = addr;
+
+			/* compute aligned address, store it */
+			vaddr = (uintptr_t)addr;
+			vaddr = (vaddr + sizeof(uint32_t) + (LZMA_MIN_ALIGNMENT_BYTES-1)) & (~(LZMA_MIN_ALIGNMENT_BYTES-1));
+			codec->allocptr2[scan] = (uint32_t*)vaddr;
 			break;
 		}
 	}
 
 	/* set the low bit of the size so we don't match next time */
 	*addr = size | 1;
-	return addr + 1;
-}
 
+	/* return aligned address */
+	return (void*)vaddr;
+}
 
 /*-------------------------------------------------
  *  lzma_fast_free - fast free for lzma, which
@@ -452,21 +469,22 @@ void *lzma_fast_alloc(void *p, size_t size)
 void lzma_fast_free(void *p, void *address)
 {
 	int scan;
-   uint32_t *ptr;
-   lzma_allocator *codec;
+	uint32_t *ptr = NULL;
+	lzma_allocator *codec = NULL;
+
 	if (address == NULL)
 		return;
 
 	codec = (lzma_allocator *)(p);
 
 	/* find the hunk */
-	ptr = (uint32_t *)(address) - 1;
+	ptr = (uint32_t *)address;
 	for (scan = 0; scan < MAX_LZMA_ALLOCS; scan++)
 	{
-		if (ptr == codec->allocptr[scan])
+		if (ptr == codec->allocptr2[scan])
 		{
 			/* clear the low bit of the size to allow matches */
-			*ptr &= ~1;
+			*codec->allocptr[scan] &= ~1;
 			return;
 		}
 	}
@@ -2458,9 +2476,14 @@ static chd_error zlib_codec_decompress(void *codec, const uint8_t *src, uint32_t
     allocates and frees memory frequently
 -------------------------------------------------*/
 
+/* Huge alignment values for possible SIMD optimization by compiler (NEON, SSE, AVX) */
+#define ZLIB_MIN_ALIGNMENT_BITS 512
+#define ZLIB_MIN_ALIGNMENT_BYTES (ZLIB_MIN_ALIGNMENT_BITS / 8)
+
 static voidpf zlib_fast_alloc(voidpf opaque, uInt items, uInt size)
 {
 	zlib_allocator *alloc = (zlib_allocator *)opaque;
+	uintptr_t paddr = 0;
 	UINT32 *ptr;
 	int i;
 
@@ -2475,12 +2498,14 @@ static voidpf zlib_fast_alloc(voidpf opaque, uInt items, uInt size)
 		{
 			/* set the low bit of the size so we don't match next time */
 			*ptr |= 1;
-			return ptr + 1;
+
+			/* return aligned block address */
+			return (voidpf)(alloc->allocptr2[i]);
 		}
 	}
 
 	/* alloc a new one */
-	ptr = (UINT32 *)malloc(size + sizeof(UINT32));
+    ptr = (UINT32 *)malloc(size + sizeof(UINT32) + ZLIB_MIN_ALIGNMENT_BYTES);
 	if (!ptr)
 		return NULL;
 
@@ -2489,12 +2514,16 @@ static voidpf zlib_fast_alloc(voidpf opaque, uInt items, uInt size)
 		if (!alloc->allocptr[i])
 		{
 			alloc->allocptr[i] = ptr;
+			paddr = (((uintptr_t)ptr) + sizeof(UINT32) + (ZLIB_MIN_ALIGNMENT_BYTES-1)) & (~(ZLIB_MIN_ALIGNMENT_BYTES-1));
+			alloc->allocptr2[i] = (uint32_t*)paddr;
 			break;
 		}
 
 	/* set the low bit of the size so we don't match next time */
 	*ptr = size | 1;
-	return ptr + 1;
+
+	/* return aligned block address */
+	return (voidpf)paddr;
 }
 
 
@@ -2506,15 +2535,15 @@ static voidpf zlib_fast_alloc(voidpf opaque, uInt items, uInt size)
 static void zlib_fast_free(voidpf opaque, voidpf address)
 {
 	zlib_allocator *alloc = (zlib_allocator *)opaque;
-	UINT32 *ptr = (UINT32 *)address - 1;
+	UINT32 *ptr = (UINT32 *)address;
 	int i;
 
 	/* find the hunk */
 	for (i = 0; i < MAX_ZLIB_ALLOCS; i++)
-		if (ptr == alloc->allocptr[i])
+		if (ptr == alloc->allocptr2[i])
 		{
 			/* clear the low bit of the size to allow matches */
-			*ptr &= ~1;
+			*(alloc->allocptr[i]) &= ~1;
 			return;
 		}
 }

genplusgx_source/cd_hw/pcm.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  PCM sound chip (315-5476A) (RF5C164 compatible)
  *
- *  Copyright (C) 2012-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -183,7 +183,11 @@ void pcm_run(unsigned int length)
       if (r < -32768) r = -32768;
       else if (r > 32767) r = 32767;
 
-      /* update Blip Buffer */
+      /* PCM output mixing level (0-100%) */
+      l = (l * config.pcm_volume) / 100;
+      r = (r * config.pcm_volume) / 100;
+
+      /* update blip buffer */
       blip_add_delta_fast(snd.blips[1], i, l-prev_l, r-prev_r);
       prev_l = l;
       prev_r = r;
@@ -226,10 +230,10 @@ void pcm_update(unsigned int samples)
   pcm.cycles = 0;
 }
 
-void pcm_write(unsigned int address, unsigned char data)
+void pcm_write(unsigned int address, unsigned char data, unsigned int cycles)
 {
-  /* synchronize PCM chip with SUB-CPU */
-  int clocks = s68k.cycles - pcm.cycles;
+  /* synchronize PCM chip with CPU */
+  int clocks = cycles - pcm.cycles;
   if (clocks > 0)
   {
     /* number of internal clocks (samples) to run */
@@ -350,10 +354,10 @@ void pcm_write(unsigned int address, unsigned char data)
   }
 }
 
-unsigned char pcm_read(unsigned int address)
+unsigned char pcm_read(unsigned int address, unsigned int cycles)
 {
   /* synchronize PCM chip with SUB-CPU */
-  int clocks = s68k.cycles - pcm.cycles;
+  int clocks = cycles - pcm.cycles;
   if (clocks > 0)
   {
     /* number of internal clocks (samples) to run */

genplusgx_source/cd_hw/pcm.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  PCM sound chip (315-5476A) (RF5C164 compatible)
  *
- *  Copyright (C) 2012-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -70,8 +70,8 @@ extern void pcm_reset(void);
 extern int pcm_context_save(uint8 *state);
 extern int pcm_context_load(uint8 *state);
 extern void pcm_update(unsigned int samples);
-extern void pcm_write(unsigned int address, unsigned char data);
-extern unsigned char pcm_read(unsigned int address);
+extern void pcm_write(unsigned int address, unsigned char data, unsigned int cycles);
+extern unsigned char pcm_read(unsigned int address, unsigned int cycles);
 extern void pcm_ram_dma_w(unsigned int words);
 
 #endif

genplusgx_source/cd_hw/scd.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Mega CD / Sega CD hardware
  *
- *  Copyright (C) 2012-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -101,13 +101,8 @@ void prg_ram_dma_w(unsigned int words)
   /* DMA transfer */
   while (words--)
   {
-    /* read 16-bit word from CDC buffer */
-    data = *(uint16 *)(cdc.ram + src_index);
-
-#ifdef LSB_FIRST
-    /* source data is stored in big endian format */
-    data = ((data >> 8) | (data << 8)) & 0xffff;
-#endif
+    /* read 16-bit word from CDC RAM buffer (big-endian format) */
+    data = READ_WORD(cdc.ram, src_index);
 
     /* write 16-bit word to PRG-RAM */
     *(uint16 *)(scd.prg_ram + dst_index) = data ;
@@ -487,7 +482,7 @@ static unsigned int scd_read_byte(unsigned int address)
     /* get /LDS only */
     if (address & 1)
     {
-      return pcm_read((address >> 1) & 0x1fff);
+      return pcm_read((address >> 1) & 0x1fff, s68k.cycles);
     }
 
     return s68k_read_bus_8(address);
@@ -553,7 +548,7 @@ static unsigned int scd_read_byte(unsigned int address)
   }
 
   /* Font data */
-  if ((address >= 0x50) && (address <= 0x56))
+  if ((address >= 0x50) && (address <= 0x57))
   {
     /* shifted 4-bit input (xxxx00) */
     uint8 bits = (scd.regs[0x4e>>1].w >> (((address & 6) ^ 6) << 1)) << 2;
@@ -606,7 +601,7 @@ static unsigned int scd_read_word(unsigned int address)
   if (!(address & 0x8000))
   {
     /* get /LDS only */
-    return pcm_read((address >> 1) & 0x1fff);
+    return pcm_read((address >> 1) & 0x1fff, s68k.cycles);
   }
 
 #ifdef LOG_SCD
@@ -769,7 +764,7 @@ static void scd_write_byte(unsigned int address, unsigned int data)
     /* get /LDS only */
     if (address & 1)
     {
-      pcm_write((address >> 1) & 0x1fff, data);
+      pcm_write((address >> 1) & 0x1fff, data, s68k.cycles);
       return;
     }
 
@@ -803,6 +798,7 @@ static void scd_write_byte(unsigned int address, unsigned int data)
     }
 
     case 0x03: /* Memory Mode */
+    case 0x02: /* !LDS and !UDS are ignored (verified on real hardware, cf. Krikzz's mcd-verificator) */
     {
       s68k_poll_sync(1<<0x03);
 
@@ -936,6 +932,13 @@ static void scd_write_byte(unsigned int address, unsigned int data)
           /* RET bit set in 2M mode */
           if (data & 0x01)
           {
+            /* check if graphics operation is running */
+            if (scd.regs[0x58>>1].byte.h & 0x80)
+            {
+              /* synchronize GFX processing with SUB-CPU */
+              gfx_update(s68k.cycles);
+            }
+
             /* Word-RAM is returned to MAIN-CPU */
             scd.dmna = 0;
 
@@ -957,8 +960,8 @@ static void scd_write_byte(unsigned int address, unsigned int data)
       return;
     }
 
-    case 0x0e:  /* SUB-CPU communication flags */
-    case 0x0f:  /* !LWR is ignored (Space Ace, Dragon's Lair) */
+    case 0x0f:  /* SUB-CPU communication flags */
+    case 0x0e:  /* !LDS and !UDS are ignored (verified on real hardware, cf. Krikzz's mcd-verificator, Space Ace, Dragon's Lair) */
     {
       s68k_poll_sync(1<<0x0f);
       scd.regs[0x0f>>1].byte.l = data;
@@ -966,6 +969,7 @@ static void scd_write_byte(unsigned int address, unsigned int data)
     }
 
     case 0x31: /* Timer */
+    case 0x30: /* !LDS and !UDS are ignored (verified on real hardware, cf. Krikzz's mcd-verificator) */
     {
       /* reload timer (one timer clock = 384 CPU cycles) */
       scd.timer = data * TIMERS_SCYCLES_RATIO;
@@ -997,26 +1001,11 @@ static void scd_write_byte(unsigned int address, unsigned int data)
       return;
     }
 
-    case 0x37: /* CDD control (controlled by BIOS, byte access only ?) */
+    case 0x4d: /* Font Color */
+    case 0x4c: /* !LDS and !UDS are ignored (verified on real hardware, cf. Krikzz's mcd-verificator) */
     {
-      /* CDD communication started ? */
-      if ((data & 0x04) && !(scd.regs[0x37>>1].byte.l & 0x04))
-      {
-        /* reset CDD cycle counter */
-        cdd.cycles = (scd.cycles - s68k.cycles) * 3;
-
-        /* set pending interrupt level 4 */
-        scd.pending |= (1 << 4);
-
-        /* update IRQ level if interrupt is enabled */
-        if (scd.regs[0x32>>1].byte.l & 0x10)
-        {
-          s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
-        }
-      }
-
-      scd.regs[0x37>>1].byte.l = data;
-      return;
+       scd.regs[0x4c>>1].byte.l = data;
+       break;
     }
 
     default:
@@ -1055,7 +1044,7 @@ static void scd_write_word(unsigned int address, unsigned int data)
   if (!(address & 0x8000))
   {
     /* get /LDS only */
-    pcm_write((address >> 1) & 0x1fff, data);
+    pcm_write((address >> 1) & 0x1fff, data & 0xff, s68k.cycles);
     return;
   }
 
@@ -1214,6 +1203,13 @@ static void scd_write_word(unsigned int address, unsigned int data)
           /* RET bit set in 2M mode */
           if (data & 0x01)
           {
+            /* check if graphics operation is running */
+            if (scd.regs[0x58>>1].byte.h & 0x80)
+            {
+              /* synchronize GFX processing with SUB-CPU */
+              gfx_update(s68k.cycles);
+            }
+
             /* Word-RAM is returned to MAIN-CPU */
             scd.dmna = 0;
 
@@ -1333,6 +1329,13 @@ static void scd_write_word(unsigned int address, unsigned int data)
       return;
     }
 
+    case 0x36: /* CDD control */
+    {
+      /* only bit 2 is writable (bits [1:0] forced to 0 by default) */
+      scd.regs[0x37>>1].byte.l = data & 0x04;
+      return;
+    }
+
     case 0x4a: /* CDD command 9 (controlled by BIOS, word access only ?) */
     {
       scd.regs[0x4a>>1].w = 0;
@@ -1584,7 +1587,6 @@ void scd_init(void)
 
 void scd_reset(int hard)
 {
-  /* TODO: figure what exactly is resetted when RESET bit is cleared by SUB-CPU */
   if (hard)
   {
     /* Clear all ASIC registers by default */
@@ -1594,7 +1596,6 @@ void scd_reset(int hard)
     scd.dmna = 0;
 
     /* H-INT default vector */
-    *(uint16 *)(m68k.memory_map[scd.cartridge.boot].base + 0x70) = 0x00FF;
     *(uint16 *)(m68k.memory_map[scd.cartridge.boot].base + 0x72) = 0xFFFF;
 
     /* Power ON initial values (MAIN-CPU side) */
@@ -1632,8 +1633,11 @@ void scd_reset(int hard)
   }
   else
   {
-    /* Clear only SUB-CPU side registers */
-    memset(&scd.regs[0x04>>1], 0, sizeof(scd.regs) - 4);
+    /* TODO: figure what exactly is reset when RESET bit is cleared by SUB-CPU */
+    /* Clear only SUB-CPU side registers (communication registers are not cleared, see msu-md-sample.bin) */
+    scd.regs[0x04>>1].w = 0x0000;
+    scd.regs[0x0c>>1].w = 0x0000;
+    memset(&scd.regs[0x30>>1], 0, sizeof(scd.regs) - 0x30);
   }
 
   /* SUB-CPU side default values */
@@ -1673,6 +1677,10 @@ void scd_reset(int hard)
 
 void scd_update(unsigned int cycles)
 {
+  int m68k_end_cycles;
+  int s68k_run_cycles;
+  int s68k_end_cycles = scd.cycles + SCYCLES_PER_LINE;
+
   /* update CDC DMA transfer */
   if (cdc.dma_w)
   {
@@ -1682,63 +1690,77 @@ void scd_update(unsigned int cycles)
   /* run both CPU in sync until end of line */
   do
   {
-    m68k_run(cycles);
-    s68k_run(scd.cycles + SCYCLES_PER_LINE);
-  }
-  while ((m68k.cycles < cycles) || (s68k.cycles < (scd.cycles + SCYCLES_PER_LINE)));
+    /* CD hardware remaining cycles until end of line */
+    s68k_run_cycles = s68k_end_cycles - scd.cycles;
 
-  /* increment CD hardware cycle counter */
-  scd.cycles += SCYCLES_PER_LINE;
-
-  /* CDD processing at 75Hz (one clock = 12500000/75 = 500000/3 CPU clocks) */
-  cdd.cycles += (SCYCLES_PER_LINE * 3);
-  if (cdd.cycles >= (500000 * 4))
-  {
-    /* reload CDD cycle counter */
-    cdd.cycles -= (500000 * 4);
-
-    /* update CDD sector */
-    cdd_update();
-
-    /* check if a new CDD command has been processed */
-    if (!(scd.regs[0x4a>>1].byte.l & 0xf0))
+    /* check Timer interrupt occurence */
+    if ((scd.timer > 0) && (scd.timer < s68k_run_cycles))
     {
-      /* reset CDD command wait flag */
-      scd.regs[0x4a>>1].byte.l = 0xf0;
+      /* adjust Sub-CPU and Main-CPU end cycle counters up to Timer interrupt occurence */
+      s68k_run_cycles = scd.timer;
+      m68k_end_cycles = mcycles_vdp + ((s68k_run_cycles * MCYCLES_PER_LINE) / SCYCLES_PER_LINE);
+    }
+    else
+    {
+      /* default Main-CPU end cycle counter (end of line) */
+      m68k_end_cycles = cycles;
+    }
 
-      /* pending level 4 interrupt */
-      scd.pending |= (1 << 4);
+    /* run both CPU in sync until required cycle counters */
+    m68k_run(m68k_end_cycles);
+    s68k_run(scd.cycles + s68k_run_cycles);
 
-      /* level 4 interrupt enabled */
-      if (scd.regs[0x32>>1].byte.l & 0x10)
+    /* increment CD hardware cycle counter */
+    scd.cycles += s68k_run_cycles;
+
+    /* CDD processing at 75Hz (one clock = 12500000/75 = 500000/3 CPU clocks) */
+    cdd.cycles += (s68k_run_cycles * 3);
+    if (cdd.cycles >= (500000 * 4))
+    {
+      /* reload CDD cycle counter */
+      cdd.cycles -= (500000 * 4);
+
+      /* update CDD sector */
+      cdd_update();
+
+      /* check if CDD communication is enabled */
+      if (scd.regs[0x37>>1].byte.l & 0x04)
       {
-        /* update IRQ level */
-        s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
-      }
-    }
-  }
-
-  /* Timer */
-  if (scd.timer)
-  {
-    /* decrement timer */
-    scd.timer -= SCYCLES_PER_LINE;
-    if (scd.timer <= 0)
-    {
-      /* reload timer (one timer clock = 384 CPU cycles) */
-      scd.timer += (scd.regs[0x30>>1].byte.l * TIMERS_SCYCLES_RATIO);
-
-      /* level 3 interrupt enabled ? */
-      if (scd.regs[0x32>>1].byte.l & 0x08)
-      {
-        /* trigger level 3 interrupt */
-        scd.pending |= (1 << 3);
-
-        /* update IRQ level */
-        s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
+        /* pending level 4 interrupt */
+        scd.pending |= (1 << 4);
+
+        /* level 4 interrupt enabled */
+        if (scd.regs[0x32>>1].byte.l & 0x10)
+        {
+          /* update IRQ level */
+          s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
+        }
+      }
+    }
+
+    /* Timer */
+    if (scd.timer)
+    {
+      /* decrement timer */
+      scd.timer -= s68k_run_cycles;
+      if (scd.timer <= 0)
+      {
+        /* reload timer (one timer clock = 384 CPU cycles) */
+        scd.timer += (scd.regs[0x30>>1].byte.l * TIMERS_SCYCLES_RATIO);
+
+        /* level 3 interrupt enabled ? */
+        if (scd.regs[0x32>>1].byte.l & 0x08)
+        {
+          /* trigger level 3 interrupt */
+          scd.pending |= (1 << 3);
+
+          /* update IRQ level */
+          s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
+        }
       }
     }
   }
+  while ((m68k.cycles < cycles) || (s68k.cycles < s68k_end_cycles));
 
   /* GFX processing */
   if (scd.regs[0x58>>1].byte.h & 0x80)
@@ -1851,7 +1873,7 @@ int scd_context_save(uint8 *state)
   return bufferptr;
 }
 
-int scd_context_load(uint8 *state)
+int scd_context_load(uint8 *state, char *version)
 {
   int i;
   uint16 tmp16;
@@ -1873,7 +1895,7 @@ int scd_context_load(uint8 *state)
   bufferptr += cdc_context_load(&state[bufferptr]);
 
   /* CD Drive processor */
-  bufferptr += cdd_context_load(&state[bufferptr]);
+  bufferptr += cdd_context_load(&state[bufferptr], version);
 
   /* PCM chip */
   bufferptr += pcm_context_load(&state[bufferptr]);

genplusgx_source/cd_hw/scd.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Mega CD / Sega CD hardware
  *
- *  Copyright (C) 2012-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2012-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -87,7 +87,7 @@ extern void scd_init(void);
 extern void scd_reset(int hard);
 extern void scd_update(unsigned int cycles);
 extern void scd_end_frame(unsigned int cycles);
-extern int scd_context_load(uint8 *state);
+extern int scd_context_load(uint8 *state, char *version);
 extern int scd_context_save(uint8 *state);
 extern int scd_68k_irq_ack(int level);
 extern void prg_ram_dma_w(unsigned int words);

genplusgx_source/genesis.c

@@ -5,7 +5,7 @@
  *  Support for SG-1000, Mark-III, Master System, Game Gear, Mega Drive & Mega CD hardware
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -50,7 +50,7 @@ uint8 boot_rom[0x800];    /* Genesis BOOT ROM   */
 uint8 work_ram[0x10000];  /* 68K RAM  */
 uint8 zram[0x2000];       /* Z80 RAM  */
 uint32 zbank;             /* Z80 bank window address */
-uint8 zstate;             /* Z80 bus state (d0 = BUSACK, d1 = /RESET) */
+uint8 zstate;             /* Z80 bus state (d0 = /RESET, d1 = BUSACK) */
 uint8 pico_current;       /* PICO current page */
 
 static uint8 tmss[4];     /* TMSS security register */
@@ -161,6 +161,7 @@ void gen_init(void)
     {
       /* initialize SUB-CPU */
       s68k_init();
+      s68k.aerr_enabled = config.addr_error; 
 
       /* initialize CD hardware */
       scd_init();
@@ -220,6 +221,7 @@ void gen_init(void)
       /* SG-1000 hardware */
       case SYSTEM_SG:
       case SYSTEM_SGII:
+      case SYSTEM_SGII_RAM_EXT:
       {
         z80_writeport = z80_sg_port_w;
         z80_readport  = z80_sg_port_r;
@@ -279,10 +281,18 @@ void gen_reset(int hard_reset)
         /* reset CD hardware */
         scd_reset(1);
       }
+
+      /* reset MD cartridge hardware (only when booting from cartridge) */
+      if (scd.cartridge.boot)
+      {
+        md_cart_reset(hard_reset);
+      }
+    }
+    else
+    {
+      /* reset MD cartridge hardware */
+      md_cart_reset(hard_reset);
     }
-    
-    /* reset MD cartridge hardware */
-    md_cart_reset(hard_reset);
 
     /* Z80 bus is released & Z80 is reseted */
     m68k.memory_map[0xa0].read8   = m68k_read_bus_8;

genplusgx_source/genesis.h

@@ -5,7 +5,7 @@
  *  Support for SG-1000, Mark-III, Master System, Game Gear, Mega Drive & Mega CD hardware
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/input_hw/mouse.c

@@ -56,7 +56,7 @@ void mouse_reset(int port)
   mouse.Port = port;
 }
 
-unsigned char mouse_read()
+unsigned char mouse_read(void)
 {
   unsigned int temp = 0x00;
   int x = input.analog[mouse.Port][0];

genplusgx_source/input_hw/xe_1ap.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  XE-1AP analog controller support
  *
- *  Copyright (C) 2011-2015  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2011-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -96,7 +96,7 @@ INLINE unsigned char xe_1ap_read(int index)
     case 9: /* CH3 low (Throttle vertical or horizontal direction) */
       data = input.analog[port+1][0] & 0x0F;
       break;
-    case 10: /* A B A' B' buttons status (active low) */
+    case 11: /* A B A' B' buttons status (active low) */
       data = (~input.pad[port] >> 6) & 0x0F;
       break;
     default: /* N/A */

genplusgx_source/input_hw/xe_1ap.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  XE-1AP analog controller support
  *
- *  Copyright (C) 2011-2015  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2011-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/loadrom.c

@@ -3,7 +3,7 @@
  *  ROM Loading Support
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -58,20 +58,21 @@
 #define ROMMEMO       456
 #define ROMCOUNTRY    496
 
-#define P3BUTTONS   1
-#define P6BUTTONS   2
-#define PKEYBOARD   4
-#define PPRINTER    8
-#define PBALL       16
-#define PFLOPPY     32
-#define PACTIVATOR  64
-#define PTEAMPLAYER 128
-#define PMSYSTEMPAD 256
-#define PSERIAL     512
-#define PTABLET     1024
-#define PPADDLE     2048
-#define PCDROM      4096
-#define PMOUSE      8192
+#define P3BUTTONS   0x0001
+#define P6BUTTONS   0x0002
+#define PKEYBOARD   0x0004
+#define PPRINTER    0x0008
+#define PBALL       0x0010
+#define PFLOPPY     0x0020
+#define PACTIVATOR  0x0040
+#define PTEAMPLAYER 0x0080
+#define PMSYSTEMPAD 0x0100
+#define PSERIAL     0x0200
+#define PTABLET     0x0400
+#define PPADDLE     0x0800
+#define PCDROM      0x1000
+#define PMOUSE      0x2000
+#define PMENACER    0x4000
 
 #define MAXCOMPANY 64
 #define MAXPERIPHERALS 15
@@ -288,7 +289,7 @@ void getrominfo(char *romheader)
     /* Supported peripherals */
     rominfo.peripherals = 0;
     for (i = 0; i < 14; i++)
-      for (j=0; j < 14; j++)
+      for (j=0; j < MAXPERIPHERALS; j++)
         if (romheader[ROMIOSUPPORT+i] == peripheralinfo[j].pID[0])
           rominfo.peripherals |= (1 << j);
   }
@@ -581,9 +582,6 @@ int load_rom(char *filename)
   {
     /* enable CD hardware */
     system_hw = SYSTEM_MCD;
-
-    /* boot from CD hardware */
-    scd.cartridge.boot = 0x00;
   }
   else
   {
@@ -647,7 +645,9 @@ int load_rom(char *filename)
 
       /* auto-detect byte-swapped dumps */
       if (!memcmp((char *)(cart.rom + 0x100),"ESAGM GE ARDVI E", 16) ||
-          !memcmp((char *)(cart.rom + 0x100),"ESAGG NESESI", 12))
+          !memcmp((char *)(cart.rom + 0x100),"ESAGG NESESI", 12) ||
+          !memcmp((char *)(cart.rom + 0x80000 + 0x100),"ESAGM GE ARDVI E", 16) ||
+          !memcmp((char *)(cart.rom + 0x80000 + 0x100),"ESAGG NESESI", 12))
       {
         for(i = 0; i < size; i += 2)
         {
@@ -708,10 +708,10 @@ int load_rom(char *filename)
 
   /* Save auto-detected system hardware  */
   romtype = system_hw;
-  
+
   /* CD image file */
   if (system_hw == SYSTEM_MCD)
-  {   
+  {
     /* try to load CD BOOTROM for selected region */
     if (!load_bios(SYSTEM_MCD))
     {
@@ -721,65 +721,52 @@ int load_rom(char *filename)
       /* error booting from CD */
       return (0);
     }
-  }
-
-  /* CD BOOTROM */
-  else if (strstr(rominfo.ROMType, "BR") != NULL)
-  {
-    /* enable CD hardware */
-    system_hw = SYSTEM_MCD;
 
     /* boot from CD hardware */
     scd.cartridge.boot = 0x00;
-
-    /* copy ROM to BOOTROM area */
-    memcpy(scd.bootrom, cart.rom, sizeof(scd.bootrom));
-
-    /* mark CD BIOS as being loaded */
-    system_bios = system_bios | 0x10;
-
-    /* loaded CD BIOS region */
-    system_bios = (system_bios & 0xf0) | (region_code >> 4);
   }
 
-  /* ROM cartridge (max. 8MB) with CD loaded */
-  else if ((cart.romsize <= 0x800000) && cdd.loaded)
+  /* 16-bit ROM cartridge (max. 8MB) with optional CD hardware add-on support enabled */
+  else if ((system_hw == SYSTEM_MD) && (cart.romsize <= 0x800000) && (config.add_on != HW_ADDON_NONE))
   {
-    /* try to load CD BOOTROM */
-    if (load_bios(SYSTEM_MCD))
-    {
-      /* enable CD hardware */
-      system_hw = SYSTEM_MCD;
+    int len;
+    char fname[256];
 
-      /* boot from cartridge */
-      scd.cartridge.boot = 0x40;
+#if defined(USE_LIBCHDR)
+    /* automatically try to load associated .chd file if no .cue file CD image loaded yet */
+    if (!cdd.loaded)
+    {
+      len = strlen(filename);
+      while ((len && (filename[len] != '.')) || (len > 251)) len--;
+      strncpy(fname, filename, len);
+      strcpy(&fname[len], ".chd");
+      fname[len+4] = 0;
+      cdd_load(fname, (char *)cdc.ram);
     }
-    else
+#endif
+
+    /* automatically enable CD hardware emulation (Mode 1) in case :             */
+    /*  - loaded ROM has known CD hardware support                               */
+    /*      or                                                                   */
+    /*  - CD hardware emulation is forced on                                     */
+    /*      or                                                                   */
+    /*  - MegaSD add-on emulation is disabled and normal CD image file is loaded */
+    if ((rominfo.peripherals & PCDROM) || (strstr(rominfo.domestic,"FLUX") != NULL) ||
+        (config.add_on == HW_ADDON_MEGACD) || ((config.add_on | cdd.loaded) == HW_ADDON_MEGACD))
     {
-      /* unmount CD image */
-      cdd_unload();
-    }    
-  }
-  
-  /* ROM cartridge with CD support */
-  else if ((strstr(rominfo.domestic,"FLUX") != NULL) ||
-           (strstr(rominfo.domestic,"WONDER LIBRARY") != NULL) ||
-           (strstr(rominfo.product,"T-5740") != NULL))
-  {
-    /* check if console hardware is set to AUTO */
-    if (!config.system)
-    {
-      /* try to load CD BOOTROM */
+      /* try to load CD BOOTROM for selected region */
       if (load_bios(SYSTEM_MCD))
       {
-        char fname[256];
-        int len = strlen(filename);
-
-        /* automatically try to load associated .iso file */
-        while ((len && (filename[len] != '.')) || (len > 251)) len--;
-        strncpy(fname, filename, len);
-        strcpy(&fname[len], ".iso");
-        cdd_load(fname, (char *)cdc.ram);
+        /* automatically try to load associated .iso file if no CD image loaded yet */
+        if (!cdd.loaded)
+        {
+          len = strlen(filename);
+          while ((len && (filename[len] != '.')) || (len > 251)) len--;
+          strncpy(fname, filename, len);
+          strcpy(&fname[len], ".iso");
+          fname[len+4] = 0;
+          cdd_load(fname, (char *)cdc.ram);
+        }
 
         /* enable CD hardware */
         system_hw = SYSTEM_MCD;
@@ -787,6 +774,30 @@ int load_rom(char *filename)
         /* boot from cartridge */
         scd.cartridge.boot = 0x40;
       }
+      else
+      {
+        /* unmount any loaded CD image */
+        cdd_unload();
+      }
+    }
+
+    /* CD BOOTROM */
+    else if (strstr(rominfo.ROMType, "BR") != NULL)
+    {
+      /* enable CD hardware */
+      system_hw = SYSTEM_MCD;
+
+      /* boot from CD hardware */
+      scd.cartridge.boot = 0x00;
+
+      /* copy ROM to BOOTROM area */
+      memcpy(scd.bootrom, cart.rom, sizeof(scd.bootrom));
+
+      /* mark CD BIOS as being loaded */
+      system_bios = system_bios | 0x10;
+
+      /* loaded CD BIOS region */
+      system_bios = (system_bios & 0xf0) | (region_code >> 4);
     }
   }
 
@@ -1076,7 +1087,9 @@ void get_region(char *romheader)
            (strstr(rominfo.product,"T-69046-50") != NULL) ||    /* Back to the Future III (Europe) */
            (strstr(rominfo.product,"T-120106-00") != NULL) ||   /* Brian Lara Cricket (Europe) */
            (strstr(rominfo.product,"T-97126 -50") != NULL) ||   /* Williams Arcade's Greatest Hits (Europe) */
-           (strstr(rominfo.product,"T-70096 -00") != NULL))     /* Muhammad Ali Heavyweight Boxing (Europe) */
+           (strstr(rominfo.product,"T-113026-50") != NULL) ||   /* Wiz'n'Liz - The Frantic Wabbit Wescue (Europe) */
+           (strstr(rominfo.product,"T-70096 -00") != NULL) ||   /* Muhammad Ali Heavyweight Boxing (Europe) */
+           ((rominfo.checksum == 0x0000) && (rominfo.realchecksum == 0x1f7f))) /* Radica - Sensible Soccer Plus edition */
       {
         /* need PAL settings */
         region_code = REGION_EUROPE;

genplusgx_source/loadrom.h

@@ -3,7 +3,7 @@
  *  ROM Loading Support
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022 Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/m68k/m68kcpu.c

@@ -188,7 +188,8 @@ void m68k_set_fc_callback(void  (*callback)(unsigned int new_fc))
 }
 #endif
 
-#ifdef LOGVDP
+#ifdef LOGERROR
+
 extern void error(char *format, ...);
 extern uint16 v_counter;
 #endif
@@ -202,8 +203,8 @@ void m68k_update_irq(unsigned int mask)
   /* Update IRQ level */
   CPU_INT_LEVEL |= (mask << 8);
   
-#ifdef LOGVDP
-  error("[%d(%d)][%d(%d)] IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
+#ifdef LOGERROR
+  error("[%d(%d)][%d(%d)] m68k IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
 #endif
 }
 
@@ -212,8 +213,8 @@ void m68k_set_irq(unsigned int int_level)
   /* Set IRQ level */
   CPU_INT_LEVEL = int_level << 8;
   
-#ifdef LOGVDP
-  error("[%d(%d)][%d(%d)] IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
+#ifdef LOGERROR
+  error("[%d(%d)][%d(%d)] m68k IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
 #endif
 }
 
@@ -245,8 +246,8 @@ void m68k_set_irq_delay(unsigned int int_level)
     CPU_INT_LEVEL = int_level << 8;
   }
   
-#ifdef LOGVDP
-  error("[%d(%d)][%d(%d)] IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
+#ifdef LOGERROR
+  error("[%d(%d)][%d(%d)] m68k IRQ Level = %d(0x%02x) (%x)\n", v_counter, m68k.cycles/3420, m68k.cycles, m68k.cycles%3420,CPU_INT_LEVEL>>8,FLAG_INT_MASK,m68k_get_reg(M68K_REG_PC));
 #endif
 
   /* Check interrupt mask to process IRQ  */
@@ -277,7 +278,7 @@ void m68k_run(unsigned int cycles)
   /* Return point for when we have an address error (TODO: use goto) */
   m68ki_set_address_error_trap() /* auto-disable (see m68kcpu.h) */
 
-#ifdef LOGVDP
+#ifdef LOGERROR
   error("[%d][%d] m68k run to %d cycles (%x), irq mask = %x (%x)\n", v_counter, m68k.cycles, cycles, m68k.pc,FLAG_INT_MASK, CPU_INT_LEVEL);
 #endif
 

genplusgx_source/m68k/m68kcpu.h

@@ -596,12 +596,12 @@ static const uint16 m68ki_exception_cycle_table[256] =
      50*MUL, /*  3: Address Error                         (unemulated) */
      34*MUL, /*  4: Illegal Instruction                                */
      38*MUL, /*  5: Divide by Zero -- ASG: changed from 42             */
-     40*MUL, /*  6: CHK -- ASG: chanaged from 44                       */
+     38*MUL, /*  6: CHK -- ASG: changed from 44                        */
      34*MUL, /*  7: TRAPV                                              */
      34*MUL, /*  8: Privilege Violation                                */
      34*MUL, /*  9: Trace                                              */
-      4*MUL, /* 10: 1010                                               */
-      4*MUL, /* 11: 1111                                               */
+     34*MUL, /* 10: 1010                                               */
+     34*MUL, /* 11: 1111                                               */
       4*MUL, /* 12: RESERVED                                           */
       4*MUL, /* 13: Coprocessor Protocol Violation        (unemulated) */
       4*MUL, /* 14: Format Error                                       */

genplusgx_source/m68k/m68ki_cycles.h

@@ -20,15 +20,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -40,7 +40,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7, 
    22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  20*7,  24*7,   0*7,   0*7,  20*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7,  28*7, 
    30*7,  30*7,  30*7,  30*7,  30*7,  30*7,  30*7,  30*7,  32*7,  32*7,  32*7,  32*7,  32*7,  32*7,  32*7,  32*7, 
    34*7,  34*7,  34*7,  34*7,  34*7,  34*7,  34*7,  34*7,  32*7,  36*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -52,15 +52,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -84,15 +84,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -116,15 +116,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -132,31 +132,31 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,  16*7,  18*7,   0*7,   0*7,   0*7,   0*7, 
-   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
-   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7, 
-   22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  20*7,  24*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7, 
    22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  20*7,  24*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7, 
+   22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  20*7,  24*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7, 
    22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  20*7,  24*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -180,15 +180,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -212,15 +212,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -244,15 +244,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  12*7,  16*7,  12*7,  14*7,  10*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1048,10 +1048,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1080,10 +1080,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1112,10 +1112,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1144,10 +1144,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1176,10 +1176,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1197,25 +1197,9 @@ static const unsigned char m68ki_cycles[0x10000] =
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7,  22*7, 
-   24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  24*7,  22*7,  26*7,   0*7,   0*7,   4*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
-   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   8*7,  12*7,   8*7,  12*7,   0*7,   0*7,   0*7,   0*7, 
+   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,   0*7,   0*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1225,37 +1209,53 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
-   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,  16*7,  18*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
-   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,  16*7,  18*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
-   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   8*7,  12*7,   8*7,  12*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   8*7,  12*7,   8*7,  12*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,  16*7,  18*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
+   18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,  16*7,  18*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,   8*7,  12*7,   8*7,  12*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
-    0*7,   4*7,   4*7,  20*7,   0*7,  16*7,   4*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    0*7,   4*7,   4*7,  20*7,   0*7,  16*7,   0*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
    16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
@@ -1272,10 +1272,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-   14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7, 
-   16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7, 
-   20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  20*7,  18*7,  22*7,  18*7,  20*7,  14*7,   0*7,   0*7,   0*7, 
+    0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   6*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
+   10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,  10*7,   8*7,  12*7,   8*7,  10*7,   4*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
     0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
@@ -1284,7 +1284,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1316,7 +1316,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1348,7 +1348,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1380,7 +1380,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1412,7 +1412,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1444,7 +1444,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1476,7 +1476,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
@@ -1508,7 +1508,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 
-    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7, 
+    4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   4*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7,   8*7, 
    12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7,  12*7, 
    14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  14*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7,  16*7, 
    18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  18*7,  16*7,  20*7,   0*7,   0*7,   0*7,   0*7,   0*7,   0*7, 

genplusgx_source/m68k/m68kops.h

@@ -4661,6 +4661,11 @@ static void m68k_op_bchg_32_r_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (DX & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst ^= mask;
 }
@@ -4770,6 +4775,11 @@ static void m68k_op_bchg_32_s_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (OPER_I_8() & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst ^= mask;
 }
@@ -4879,6 +4889,11 @@ static void m68k_op_bclr_32_r_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (DX & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst &= ~mask;
 }
@@ -4988,6 +5003,11 @@ static void m68k_op_bclr_32_s_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (OPER_I_8() & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst &= ~mask;
 }
@@ -5117,6 +5137,11 @@ static void m68k_op_bset_32_r_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (DX & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst |= mask;
 }
@@ -5226,6 +5251,11 @@ static void m68k_op_bset_32_s_d(void)
   uint* r_dst = &DY;
   uint mask = 1 << (OPER_I_8() & 0x1f);
 
+  if (mask & 0xffff0000)
+  {
+    USE_CYCLES(2 * MUL);
+  }
+
   FLAG_Z = *r_dst & mask;
   *r_dst |= mask;
 }
@@ -5536,9 +5566,14 @@ static void m68k_op_chk_16_d(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5554,9 +5589,14 @@ static void m68k_op_chk_16_ai(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5572,9 +5612,14 @@ static void m68k_op_chk_16_pi(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5590,9 +5635,14 @@ static void m68k_op_chk_16_pd(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5608,9 +5658,14 @@ static void m68k_op_chk_16_di(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5626,9 +5681,14 @@ static void m68k_op_chk_16_ix(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5644,9 +5704,14 @@ static void m68k_op_chk_16_aw(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5662,9 +5727,14 @@ static void m68k_op_chk_16_al(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5680,9 +5750,14 @@ static void m68k_op_chk_16_pcdi(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5698,9 +5773,14 @@ static void m68k_op_chk_16_pcix(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -5716,9 +5796,14 @@ static void m68k_op_chk_16_i(void)
 
   if(src >= 0 && src <= bound)
   {
+    USE_CYCLES(10 * MUL);
     return;
   }
-  FLAG_N = (src < 0)<<7;
+  if(src < 0)
+  {
+    FLAG_N = 1<<7;
+    USE_CYCLES(2 * MUL);
+  }
   m68ki_exception_trap(EXCEPTION_CHK);
 }
 
@@ -8117,7 +8202,7 @@ static void m68k_op_divu_16_d(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8148,7 +8233,7 @@ static void m68k_op_divu_16_ai(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8179,7 +8264,7 @@ static void m68k_op_divu_16_pi(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 *10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8210,7 +8295,7 @@ static void m68k_op_divu_16_pd(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8241,7 +8326,7 @@ static void m68k_op_divu_16_di(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8272,7 +8357,7 @@ static void m68k_op_divu_16_ix(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8303,7 +8388,7 @@ static void m68k_op_divu_16_aw(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8334,7 +8419,7 @@ static void m68k_op_divu_16_al(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8365,7 +8450,7 @@ static void m68k_op_divu_16_pcdi(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8396,7 +8481,7 @@ static void m68k_op_divu_16_pcix(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -8427,7 +8512,7 @@ static void m68k_op_divu_16_i(void)
       *r_dst = MASK_OUT_ABOVE_32(MASK_OUT_ABOVE_16(quotient) | (remainder << 16));
       return;
     }
-    USE_CYCLES(7 * 10);
+    USE_CYCLES(MUL * 10);
     FLAG_V = VFLAG_SET;
     FLAG_N = NFLAG_SET; /* undocumented behavior (fixes Blood Shot on Genesis) */
     FLAG_C = CFLAG_CLEAR;
@@ -23358,6 +23443,7 @@ static void m68k_op_trapv(void)
 {
   if(COND_VC())
   {
+    USE_CYCLES (4 * MUL);
     return;
   }
   m68ki_exception_trap(EXCEPTION_TRAPV);  /* HJB 990403 */
@@ -23717,21 +23803,21 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_btst_8_r_pd         , 0xf1f8, 0x0120, 10},
   {m68k_op_btst_8_r_di         , 0xf1f8, 0x0128, 12},
   {m68k_op_btst_8_r_ix         , 0xf1f8, 0x0130, 14},
-  {m68k_op_bchg_32_r_d         , 0xf1f8, 0x0140,  8},
+  {m68k_op_bchg_32_r_d         , 0xf1f8, 0x0140,  6},
   {m68k_op_movep_32_er         , 0xf1f8, 0x0148, 24},
   {m68k_op_bchg_8_r_ai         , 0xf1f8, 0x0150, 12},
   {m68k_op_bchg_8_r_pi         , 0xf1f8, 0x0158, 12},
   {m68k_op_bchg_8_r_pd         , 0xf1f8, 0x0160, 14},
   {m68k_op_bchg_8_r_di         , 0xf1f8, 0x0168, 16},
   {m68k_op_bchg_8_r_ix         , 0xf1f8, 0x0170, 18},
-  {m68k_op_bclr_32_r_d         , 0xf1f8, 0x0180, 10},
+  {m68k_op_bclr_32_r_d         , 0xf1f8, 0x0180,  8},
   {m68k_op_movep_16_re         , 0xf1f8, 0x0188, 16},
   {m68k_op_bclr_8_r_ai         , 0xf1f8, 0x0190, 12},
   {m68k_op_bclr_8_r_pi         , 0xf1f8, 0x0198, 12},
   {m68k_op_bclr_8_r_pd         , 0xf1f8, 0x01a0, 14},
   {m68k_op_bclr_8_r_di         , 0xf1f8, 0x01a8, 16},
   {m68k_op_bclr_8_r_ix         , 0xf1f8, 0x01b0, 18},
-  {m68k_op_bset_32_r_d         , 0xf1f8, 0x01c0,  8},
+  {m68k_op_bset_32_r_d         , 0xf1f8, 0x01c0,  6},
   {m68k_op_movep_32_re         , 0xf1f8, 0x01c8, 24},
   {m68k_op_bset_8_r_ai         , 0xf1f8, 0x01d0, 12},
   {m68k_op_bset_8_r_pi         , 0xf1f8, 0x01d8, 12},
@@ -23872,12 +23958,12 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_move_16_ix_pd       , 0xf1f8, 0x31a0, 20},
   {m68k_op_move_16_ix_di       , 0xf1f8, 0x31a8, 22},
   {m68k_op_move_16_ix_ix       , 0xf1f8, 0x31b0, 24},
-  {m68k_op_chk_16_d            , 0xf1f8, 0x4180, 10},
-  {m68k_op_chk_16_ai           , 0xf1f8, 0x4190, 14},
-  {m68k_op_chk_16_pi           , 0xf1f8, 0x4198, 14},
-  {m68k_op_chk_16_pd           , 0xf1f8, 0x41a0, 16},
-  {m68k_op_chk_16_di           , 0xf1f8, 0x41a8, 18},
-  {m68k_op_chk_16_ix           , 0xf1f8, 0x41b0, 20},
+  {m68k_op_chk_16_d            , 0xf1f8, 0x4180,  0},
+  {m68k_op_chk_16_ai           , 0xf1f8, 0x4190,  4},
+  {m68k_op_chk_16_pi           , 0xf1f8, 0x4198,  4},
+  {m68k_op_chk_16_pd           , 0xf1f8, 0x41a0,  6},
+  {m68k_op_chk_16_di           , 0xf1f8, 0x41a8,  8},
+  {m68k_op_chk_16_ix           , 0xf1f8, 0x41b0, 10},
   {m68k_op_lea_32_ai           , 0xf1f8, 0x41d0,  4},
   {m68k_op_lea_32_di           , 0xf1f8, 0x41e8,  8},
   {m68k_op_lea_32_ix           , 0xf1f8, 0x41f0, 12},
@@ -23888,7 +23974,7 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_addq_8_di           , 0xf1f8, 0x5028, 16},
   {m68k_op_addq_8_ix           , 0xf1f8, 0x5030, 18},
   {m68k_op_addq_16_d           , 0xf1f8, 0x5040,  4},
-  {m68k_op_addq_16_a           , 0xf1f8, 0x5048,  4},
+  {m68k_op_addq_16_a           , 0xf1f8, 0x5048,  8}, /* see Yacht.txt */
   {m68k_op_addq_16_ai          , 0xf1f8, 0x5050, 12},
   {m68k_op_addq_16_pi          , 0xf1f8, 0x5058, 12},
   {m68k_op_addq_16_pd          , 0xf1f8, 0x5060, 14},
@@ -24231,7 +24317,7 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_lsl_32_r            , 0xf1f8, 0xe1a8,  8},
   {m68k_op_roxl_32_r           , 0xf1f8, 0xe1b0,  8},
   {m68k_op_rol_32_r            , 0xf1f8, 0xe1b8,  8},
-  {m68k_op_trap                , 0xfff0, 0x4e40,  4},
+  {m68k_op_trap                , 0xfff0, 0x4e40,  0},
   {m68k_op_btst_8_r_pi7        , 0xf1ff, 0x011f,  8},
   {m68k_op_btst_8_r_pd7        , 0xf1ff, 0x0127, 10},
   {m68k_op_btst_8_r_aw         , 0xf1ff, 0x0138, 12},
@@ -24363,11 +24449,11 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_move_16_ix_pcdi     , 0xf1ff, 0x31ba, 22},
   {m68k_op_move_16_ix_pcix     , 0xf1ff, 0x31bb, 24},
   {m68k_op_move_16_ix_i        , 0xf1ff, 0x31bc, 18},
-  {m68k_op_chk_16_aw           , 0xf1ff, 0x41b8, 18},
-  {m68k_op_chk_16_al           , 0xf1ff, 0x41b9, 22},
-  {m68k_op_chk_16_pcdi         , 0xf1ff, 0x41ba, 18},
-  {m68k_op_chk_16_pcix         , 0xf1ff, 0x41bb, 20},
-  {m68k_op_chk_16_i            , 0xf1ff, 0x41bc, 14},
+  {m68k_op_chk_16_aw           , 0xf1ff, 0x41b8,  8},
+  {m68k_op_chk_16_al           , 0xf1ff, 0x41b9, 12},
+  {m68k_op_chk_16_pcdi         , 0xf1ff, 0x41ba,  8},
+  {m68k_op_chk_16_pcix         , 0xf1ff, 0x41bb, 10},
+  {m68k_op_chk_16_i            , 0xf1ff, 0x41bc,  4},
   {m68k_op_lea_32_aw           , 0xf1ff, 0x41f8,  8},
   {m68k_op_lea_32_al           , 0xf1ff, 0x41f9, 12},
   {m68k_op_lea_32_pcdi         , 0xf1ff, 0x41fa,  8},
@@ -24598,7 +24684,7 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_andi_16_pd          , 0xfff8, 0x0260, 18},
   {m68k_op_andi_16_di          , 0xfff8, 0x0268, 20},
   {m68k_op_andi_16_ix          , 0xfff8, 0x0270, 22},
-  {m68k_op_andi_32_d           , 0xfff8, 0x0280, 14},
+  {m68k_op_andi_32_d           , 0xfff8, 0x0280, 16}, /* see Yacht.txt */
   {m68k_op_andi_32_ai          , 0xfff8, 0x0290, 28},
   {m68k_op_andi_32_pi          , 0xfff8, 0x0298, 28},
   {m68k_op_andi_32_pd          , 0xfff8, 0x02a0, 30},
@@ -24646,19 +24732,19 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_btst_8_s_pd         , 0xfff8, 0x0820, 14},
   {m68k_op_btst_8_s_di         , 0xfff8, 0x0828, 16},
   {m68k_op_btst_8_s_ix         , 0xfff8, 0x0830, 18},
-  {m68k_op_bchg_32_s_d         , 0xfff8, 0x0840, 12},
+  {m68k_op_bchg_32_s_d         , 0xfff8, 0x0840, 10},
   {m68k_op_bchg_8_s_ai         , 0xfff8, 0x0850, 16},
   {m68k_op_bchg_8_s_pi         , 0xfff8, 0x0858, 16},
   {m68k_op_bchg_8_s_pd         , 0xfff8, 0x0860, 18},
   {m68k_op_bchg_8_s_di         , 0xfff8, 0x0868, 20},
   {m68k_op_bchg_8_s_ix         , 0xfff8, 0x0870, 22},
-  {m68k_op_bclr_32_s_d         , 0xfff8, 0x0880, 14},
+  {m68k_op_bclr_32_s_d         , 0xfff8, 0x0880, 12},
   {m68k_op_bclr_8_s_ai         , 0xfff8, 0x0890, 16},
   {m68k_op_bclr_8_s_pi         , 0xfff8, 0x0898, 16},
   {m68k_op_bclr_8_s_pd         , 0xfff8, 0x08a0, 18},
   {m68k_op_bclr_8_s_di         , 0xfff8, 0x08a8, 20},
   {m68k_op_bclr_8_s_ix         , 0xfff8, 0x08b0, 22},
-  {m68k_op_bset_32_s_d         , 0xfff8, 0x08c0, 12},
+  {m68k_op_bset_32_s_d         , 0xfff8, 0x08c0, 10},
   {m68k_op_bset_8_s_ai         , 0xfff8, 0x08d0, 16},
   {m68k_op_bset_8_s_pi         , 0xfff8, 0x08d8, 16},
   {m68k_op_bset_8_s_pd         , 0xfff8, 0x08e0, 18},
@@ -24881,11 +24967,11 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_tst_32_di           , 0xfff8, 0x4aa8, 16},
   {m68k_op_tst_32_ix           , 0xfff8, 0x4ab0, 18},
   {m68k_op_tas_8_d             , 0xfff8, 0x4ac0,  4},
-  {m68k_op_tas_8_ai            , 0xfff8, 0x4ad0, 18},
-  {m68k_op_tas_8_pi            , 0xfff8, 0x4ad8, 18},
-  {m68k_op_tas_8_pd            , 0xfff8, 0x4ae0, 20},
-  {m68k_op_tas_8_di            , 0xfff8, 0x4ae8, 22},
-  {m68k_op_tas_8_ix            , 0xfff8, 0x4af0, 24},
+  {m68k_op_tas_8_ai            , 0xfff8, 0x4ad0, 14}, /* see Yacht.txt */
+  {m68k_op_tas_8_pi            , 0xfff8, 0x4ad8, 14}, /* see Yacht.txt */
+  {m68k_op_tas_8_pd            , 0xfff8, 0x4ae0, 16}, /* see Yacht.txt */
+  {m68k_op_tas_8_di            , 0xfff8, 0x4ae8, 18}, /* see Yacht.txt */
+  {m68k_op_tas_8_ix            , 0xfff8, 0x4af0, 20}, /* see Yacht.txt */
   {m68k_op_movem_16_er_ai      , 0xfff8, 0x4c90, 12},
   {m68k_op_movem_16_er_pi      , 0xfff8, 0x4c98, 12},
   {m68k_op_movem_16_er_di      , 0xfff8, 0x4ca8, 16},
@@ -25245,10 +25331,10 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_tst_16_al           , 0xffff, 0x4a79, 16},
   {m68k_op_tst_32_aw           , 0xffff, 0x4ab8, 16},
   {m68k_op_tst_32_al           , 0xffff, 0x4ab9, 20},
-  {m68k_op_tas_8_pi7           , 0xffff, 0x4adf, 18},
-  {m68k_op_tas_8_pd7           , 0xffff, 0x4ae7, 20},
-  {m68k_op_tas_8_aw            , 0xffff, 0x4af8, 22},
-  {m68k_op_tas_8_al            , 0xffff, 0x4af9, 26},
+  {m68k_op_tas_8_pi7           , 0xffff, 0x4adf, 14}, /* see Yacht.txt */
+  {m68k_op_tas_8_pd7           , 0xffff, 0x4ae7, 16}, /* see Yacht.txt */
+  {m68k_op_tas_8_aw            , 0xffff, 0x4af8, 18}, /* see Yacht.txt */
+  {m68k_op_tas_8_al            , 0xffff, 0x4af9, 22}, /* see Yacht.txt */
   {m68k_op_illegal             , 0xffff, 0x4afc,  4},
   {m68k_op_movem_16_er_aw      , 0xffff, 0x4cb8, 16},
   {m68k_op_movem_16_er_al      , 0xffff, 0x4cb9, 20},
@@ -25265,7 +25351,7 @@ static const opcode_handler_struct m68k_opcode_handler_table[] =
   {m68k_op_stop                , 0xffff, 0x4e72,  4},
   {m68k_op_rte_32              , 0xffff, 0x4e73, 20},
   {m68k_op_rts_32              , 0xffff, 0x4e75, 16},
-  {m68k_op_trapv               , 0xffff, 0x4e76,  4},
+  {m68k_op_trapv               , 0xffff, 0x4e76,  0},
   {m68k_op_rtr_32              , 0xffff, 0x4e77, 20},
   {m68k_op_jsr_32_aw           , 0xffff, 0x4eb8, 18},
   {m68k_op_jsr_32_al           , 0xffff, 0x4eb9, 20},

genplusgx_source/m68k/s68kconf.h

@@ -62,7 +62,11 @@
  * access a word or longword at an odd address.
  * NOTE: This is only emulated properly for 68000 mode.
  */
+#ifdef ENABLE_SUB_68K_ADDRESS_ERROR_EXCEPTIONS
+#define M68K_EMULATE_ADDRESS_ERROR  OPT_ON
+#else
 #define M68K_EMULATE_ADDRESS_ERROR  OPT_OFF
+#endif
 
 /* If ON and previous option is also ON, address error exceptions will
    also be checked when fetching instructions. Disabling this can help

genplusgx_source/m68k/s68kcpu.c

@@ -213,7 +213,7 @@ void s68k_update_irq(unsigned int mask)
   CPU_INT_LEVEL = mask << 8;
   
 #ifdef LOG_SCD
-  error("[%d][%d] IRQ Level = %d(0x%02x) (%x)\n", v_counter, s68k.cycles, CPU_INT_LEVEL>>8,FLAG_INT_MASK,s68k.pc);
+  error("[%d][%d] s68k IRQ Level = %d(0x%02x) (%x)\n", v_counter, s68k.cycles, CPU_INT_LEVEL>>8,FLAG_INT_MASK,s68k.pc);
 #endif
 }
 
@@ -348,7 +348,7 @@ void s68k_pulse_halt(void)
   CPU_STOPPED |= STOP_LEVEL_HALT;
 }
 
-void s68k_clear_halt()
+void s68k_clear_halt(void)
 {
   /* Clear the HALT line on the CPU */
   CPU_STOPPED &= ~STOP_LEVEL_HALT;

genplusgx_source/m68k/s68ki_cycles.h

@@ -20,15 +20,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -40,7 +40,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4, 
    22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  20*4,  24*4,   0*4,   0*4,  20*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4,  28*4, 
    30*4,  30*4,  30*4,  30*4,  30*4,  30*4,  30*4,  30*4,  32*4,  32*4,  32*4,  32*4,  32*4,  32*4,  32*4,  32*4, 
    34*4,  34*4,  34*4,  34*4,  34*4,  34*4,  34*4,  34*4,  32*4,  36*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -52,15 +52,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -84,15 +84,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -116,15 +116,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -132,31 +132,31 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,  16*4,  18*4,   0*4,   0*4,   0*4,   0*4, 
-   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
-   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4, 
-   22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  20*4,  24*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4, 
    22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  20*4,  24*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4, 
+   22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  20*4,  24*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4, 
    22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  20*4,  24*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -180,15 +180,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -212,15 +212,15 @@ static const unsigned char m68ki_cycles[0x10000] =
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -243,16 +243,16 @@ static const unsigned char m68ki_cycles[0x10000] =
     6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
     8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,   8*4,  10*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  12*4,  16*4,  12*4,  14*4,  10*4,   0*4,   0*4,   0*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1048,10 +1048,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1080,10 +1080,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1112,10 +1112,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1144,10 +1144,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1176,10 +1176,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1197,25 +1197,9 @@ static const unsigned char m68ki_cycles[0x10000] =
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4,  22*4, 
-   24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  24*4,  22*4,  26*4,   0*4,   0*4,   4*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
-   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   8*4,  12*4,   8*4,  12*4,   0*4,   0*4,   0*4,   0*4, 
+   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,   0*4,   0*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1225,37 +1209,53 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
-   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,  16*4,  18*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
-   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,  16*4,  18*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
-   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   8*4,  12*4,   8*4,  12*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   8*4,  12*4,   8*4,  12*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,  16*4,  18*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
+   18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,  16*4,  18*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,   8*4,  12*4,   8*4,  12*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
-    0*4,   4*4,   4*4,  20*4,   0*4,  16*4,   4*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    0*4,   4*4,   4*4,  20*4,   0*4,  16*4,   0*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
    16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
@@ -1272,10 +1272,10 @@ static const unsigned char m68ki_cycles[0x10000] =
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-   14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4, 
-   16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4, 
-   20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  20*4,  18*4,  22*4,  18*4,  20*4,  14*4,   0*4,   0*4,   0*4, 
+    0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   6*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
+   10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,  10*4,   8*4,  12*4,   8*4,  10*4,   4*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
     0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
@@ -1284,7 +1284,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1316,7 +1316,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1348,7 +1348,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1380,7 +1380,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1412,7 +1412,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1444,7 +1444,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1476,7 +1476,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
@@ -1508,7 +1508,7 @@ static const unsigned char m68ki_cycles[0x10000] =
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 
-    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4, 
+    4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   4*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4,   8*4, 
    12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4,  12*4, 
    14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  14*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4,  16*4, 
    18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  18*4,  16*4,  20*4,   0*4,   0*4,   0*4,   0*4,   0*4,   0*4, 

genplusgx_source/mem68k.c

@@ -3,7 +3,7 @@
  *  Main 68k bus handlers
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -696,29 +696,40 @@ void ctrl_io_write_byte(unsigned int address, unsigned int data)
             /* RESET bit */
             if (data & 0x01)
             {
-              /* trigger reset on 0->1 transition */
+              /* SUB-CPU reset is triggered on /RESET input 0->1 transition */
               if (!(scd.regs[0x00].byte.l & 0x01))
               {
-                /* reset SUB-CPU */
                 s68k_pulse_reset();
               }
 
               /* BUSREQ bit */
               if (data & 0x02)
               {
-                /* SUB-CPU bus requested */
+                /* SUB-CPU is halted (/HALT input is asserted) */
                 s68k_pulse_halt();
               }
               else
               {
-                /* SUB-CPU bus released */
+                /* SUB-CPU is running (/HALT input is released) */
                 s68k_clear_halt();
               }
+
+              /* update BUSREQ and RESET bits */
+              scd.regs[0x00].byte.l = data & 0x03;
             }
             else
             {
-              /* SUB-CPU is halted while !RESET is asserted */
+              /* SUB-CPU is halted (/HALT and /RESET inputs are asserted) */
               s68k_pulse_halt();
+
+              /* RESET bit is cleared and BUSREQ bit is set to 1 (verified on real hardware) */
+              scd.regs[0x00].byte.l = 0x02;
+            }
+
+            /* BUSREQ bit remains set to 0 if SUB-CPU is halted while stopped (verified on real hardware) */
+            if (s68k.stopped & 0x01)
+            {
+              scd.regs[0x00].byte.l &= ~0x02;
             }
 
             /* check if SUB-CPU halt status has changed */
@@ -727,8 +738,8 @@ void ctrl_io_write_byte(unsigned int address, unsigned int data)
               /* PRG-RAM (128KB bank) is normally mapped to $020000-$03FFFF (resp. $420000-$43FFFF) */
               unsigned int base = scd.cartridge.boot + 0x02;
 
-              /* PRG-RAM can only be accessed from MAIN 68K & Z80 when SUB-CPU is halted (Dungeon Explorer USA version) */
-              if ((data & 0x03) != 0x01)
+              /* PRG-RAM can only be accessed from MAIN-CPU & Z80 when BUSREQ bit is set (Dungeon Explorer USA version) */
+              if (scd.regs[0x00].byte.l & 0x02)
               {
                 m68k.memory_map[base].read8   = m68k.memory_map[base+1].read8   = NULL;
                 m68k.memory_map[base].read16  = m68k.memory_map[base+1].read16  = NULL;
@@ -748,7 +759,6 @@ void ctrl_io_write_byte(unsigned int address, unsigned int data)
               }
             }
 
-            scd.regs[0x00].byte.l = data;
             return;
           }
 
@@ -777,7 +787,7 @@ void ctrl_io_write_byte(unsigned int address, unsigned int data)
               }
               else
               {
-                /* writing 0 to DMNA in 1M mode actually set DMNA bit */
+                /* writing 0 to DMNA in 1M mode actually sets DMNA bit */
                 data |= 0x02;
 
                 /* update BK0-1 & DMNA bits */
@@ -787,19 +797,32 @@ void ctrl_io_write_byte(unsigned int address, unsigned int data)
             }
             else
             {
-              /* writing 0 in 2M mode does nothing */
+              /* writing 0 to DMNA in 2M mode does nothing */
               if (data & 0x02)
               {
                 /* Word-RAM is assigned to SUB-CPU */
                 scd.dmna = 1;
 
-                /* clear RET bit */
+                /* clear RET bit and update BK0-1 & DMNA bits */
                 scd.regs[0x03>>1].byte.l = (scd.regs[0x03>>1].byte.l & ~0xc3) | (data & 0xc2);
+
+                /* check if graphics operation is running */
+                if (scd.regs[0x58>>1].byte.h & 0x80)
+                {
+                  /* relative SUB-CPU cycle counter */
+                  unsigned int cycles = (m68k.cycles * SCYCLES_PER_LINE) / MCYCLES_PER_LINE;
+
+                  /* synchronize GFX processing with SUB-CPU (only if not already ahead) */
+                  if (gfx.cycles < cycles)
+                  {
+                    gfx.cycles = cycles;
+                  }
+                }
                 return;
               }
             }
 
-            /* update BK0-1 bits */
+            /* update BK0-1 bits only */
             scd.regs[0x03>>1].byte.l = (scd.regs[0x02>>1].byte.l & ~0xc0) | (data & 0xc0);
             return;
           }
@@ -921,29 +944,40 @@ void ctrl_io_write_word(unsigned int address, unsigned int data)
             /* RESET bit */
             if (data & 0x01)
             {
-              /* trigger reset on 0->1 transition */
+              /* SUB-CPU reset is triggered on /RESET input 0->1 transition */
               if (!(scd.regs[0x00].byte.l & 0x01))
               {
-                /* reset SUB-CPU */
                 s68k_pulse_reset();
               }
 
               /* BUSREQ bit */
               if (data & 0x02)
               {
-                /* SUB-CPU bus requested */
+                /* SUB-CPU is halted (/HALT input is asserted) */
                 s68k_pulse_halt();
               }
               else
               {
-                /* SUB-CPU bus released */
+                /* SUB-CPU is running (/HALT input is released) */
                 s68k_clear_halt();
               }
+
+              /* update BUSREQ and RESET bits */
+              scd.regs[0x00].byte.l = data & 0x03;
             }
             else
             {
-              /* SUB-CPU is halted while !RESET is asserted */
+              /* SUB-CPU is halted (/HALT and /RESET inputs are asserted) */
               s68k_pulse_halt();
+
+              /* RESET bit is cleared and BUSREQ bit is set to 1 (verified on real hardware) */
+              scd.regs[0x00].byte.l = 0x02;
+            }
+
+            /* BUSREQ bit remains set to 0 if SUB-CPU is halted while stopped (verified on real hardware) */
+            if (s68k.stopped & 0x01)
+            {
+              scd.regs[0x00].byte.l &= ~0x02;
             }
 
             /* check if SUB-CPU halt status has changed */
@@ -952,8 +986,8 @@ void ctrl_io_write_word(unsigned int address, unsigned int data)
               /* PRG-RAM (128KB bank) is normally mapped to $020000-$03FFFF (resp. $420000-$43FFFF) */
               unsigned int base = scd.cartridge.boot + 0x02;
 
-              /* PRG-RAM can only be accessed from MAIN 68K & Z80 when SUB-CPU is halted (Dungeon Explorer USA version) */
-              if ((data & 0x03) != 0x01)
+              /* PRG-RAM can only be accessed from MAIN-CPU & Z80 when BUSREQ bit is set (Dungeon Explorer USA version) */
+              if (scd.regs[0x00].byte.l & 0x02)
               {
                 m68k.memory_map[base].read8   = m68k.memory_map[base+1].read8   = NULL;
                 m68k.memory_map[base].read16  = m68k.memory_map[base+1].read16  = NULL;
@@ -989,9 +1023,6 @@ void ctrl_io_write_word(unsigned int address, unsigned int data)
                 s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
               }
             }
-
-            /* update LSB only */
-            scd.regs[0x00].byte.l = data & 0xff;
             return;
           }
 
@@ -1014,7 +1045,7 @@ void ctrl_io_write_word(unsigned int address, unsigned int data)
               }
               else
               {
-                /* writing 0 to DMNA in 1M mode actually set DMNA bit */
+                /* writing 0 to DMNA in 1M mode actually sets DMNA bit */
                 data |= 0x02;
 
                 /* update WP0-7, BK0-1 & DMNA bits */
@@ -1024,19 +1055,32 @@ void ctrl_io_write_word(unsigned int address, unsigned int data)
             }
             else
             {
-              /* writing 0 in 2M mode does nothing */
+              /* writing 0 to DMNA in 2M mode does nothing */
               if (data & 0x02)
               {
                 /* Word-RAM is assigned to SUB-CPU */
                 scd.dmna = 1;
 
-                /* clear RET bit */
+                /* clear RET bit and update WP0-7 & BK0-1 bits */
                 scd.regs[0x02>>1].w = (scd.regs[0x02>>1].w & ~0xffc3) | (data & 0xffc2);
+
+                /* check if graphics operation is running */
+                if (scd.regs[0x58>>1].byte.h & 0x80)
+                {
+                  /* relative SUB-CPU cycle counter */
+                  unsigned int cycles = (m68k.cycles * SCYCLES_PER_LINE) / MCYCLES_PER_LINE;
+
+                  /* synchronize GFX processing with SUB-CPU (only if not already ahead) */
+                  if (gfx.cycles < cycles)
+                  {
+                    gfx.cycles = cycles;
+                  }
+                }
                 return;
               }
             }
 
-            /* update WP0-7 & BK0-1 bits */
+            /* update WP0-7 & BK0-1 bits only */
             scd.regs[0x02>>1].w = (scd.regs[0x02>>1].w & ~0xffc0) | (data & 0xffc0);
             return;
           }

genplusgx_source/mem68k.h

@@ -3,7 +3,7 @@
  *  Main 68k bus handlers
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/membnk.c

@@ -3,7 +3,7 @@
  *  Z80 bank access to 68k bus
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2020  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -39,6 +39,9 @@
 
 #include "shared.h"
 
+
+t_zbank_memory_map zbank_memory_map[256];
+
 /*
   Handlers for access to unused addresses and those which make the
   machine lock up.

genplusgx_source/membnk.h

@@ -3,7 +3,7 @@
  *  Z80 bank access to 68k bus
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2020  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -49,10 +49,12 @@ extern void zbank_write_ctrl_io(unsigned int address, unsigned int data);
 extern unsigned int zbank_read_vdp(unsigned int address);
 extern void zbank_write_vdp(unsigned int address, unsigned int data);
 
-struct _zbank_memory_map
+typedef struct
 {
   unsigned int (*read)(unsigned int address);
   void (*write)(unsigned int address, unsigned int data);
-} zbank_memory_map[256];
+} t_zbank_memory_map;
+
+extern t_zbank_memory_map zbank_memory_map[256];
 
 #endif /* _MEMBNK_H_ */

genplusgx_source/memz80.c

@@ -5,7 +5,7 @@
  *  Support for SG-1000, Mark-III, Master System, Game Gear & Mega Drive ports access
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -111,6 +111,8 @@ unsigned char z80_memory_r(unsigned int address)
     {
       if ((address >> 8) == 0x7F)
       {
+        /* average Z80 wait-states when accessing 68k area */
+        Z80.cycles += 3 * 15;
         return (*zbank_memory_map[0xc0].read)(address);
       }
       return z80_unused_r(address);
@@ -118,6 +120,9 @@ unsigned char z80_memory_r(unsigned int address)
       
     default: /* $8000-$FFFF: 68k bank (32K) */
     {
+      /* average Z80 wait-states when accessing 68k area */
+      Z80.cycles += 3 * 15;
+
       address = zbank | (address & 0x7FFF);
       if (zbank_memory_map[address >> 16].read)
       {
@@ -158,6 +163,8 @@ void z80_memory_w(unsigned int address, unsigned char data)
 
         case 0x7F: /* $7F00-$7FFF: VDP */
         {
+          /* average Z80 wait-states when accessing 68k area */
+          Z80.cycles += 3 * 15;
           (*zbank_memory_map[0xc0].write)(address, data);
           return;
         }
@@ -172,6 +179,9 @@ void z80_memory_w(unsigned int address, unsigned char data)
 
     default: /* $8000-$FFFF: 68k bank (32K) */
     {
+      /* average Z80 wait-states when accessing 68k area */
+      Z80.cycles += 3 * 15;
+
       address = zbank | (address & 0x7FFF);
       if (zbank_memory_map[address >> 16].write)
       {
@@ -300,7 +310,7 @@ unsigned char z80_md_port_r(unsigned int port)
       /* read FM chip if enabled */
       if ((port >= 0xF0) && (config.ym2413 & 1))
       {
-        return YM2413Read(); 
+        return fm_read(Z80.cycles, port);
       }
 
       return z80_unused_port_r(port);
@@ -578,7 +588,7 @@ unsigned char z80_ms_port_r(unsigned int port)
         /* read FM board if enabled */
         if (!(port & 4) && (config.ym2413 & 1))
         {
-          data = YM2413Read();
+          data = fm_read(Z80.cycles, port);
         }
 
         /* read I/O ports if enabled */
@@ -629,10 +639,17 @@ void z80_m3_port_w(unsigned int port, unsigned char data)
 
     default:
     {
-      /* write FM chip if enabled */
+      /* write to FM sound unit (FM-70) if enabled */
       if (!(port & 4) && (config.ym2413 & 1))
       {
         fm_write(Z80.cycles, port, data);
+
+        /* FM output control "register" */
+        if (port & 2)
+        {
+          /* PSG output is automatically disabled (resp. enabled) by FM sound unit hardware if FM output is enabled (resp. disabled) */
+          psg_config(Z80.cycles, config.psg_preamp, (data & 0x01) ? 0x00 : 0xff);
+        }
         return;
       }
 
@@ -674,11 +691,11 @@ unsigned char z80_m3_port_r(unsigned int port)
 
     default:
     {
-      /* read FM chip if enabled */
+      /* read FM sound unit (FM-70) if enabled */
       if (!(port & 4) && (config.ym2413 & 1))
       {
-        /* I/O ports are automatically disabled by hardware */
-        return YM2413Read();
+        /* I/O ports are automatically disabled by FM sound unit hardware */
+        return fm_read(Z80.cycles, port);
       }
 
       /* read I/O ports   */

genplusgx_source/memz80.h

@@ -5,7 +5,7 @@
  *  Support for SG-1000, Mark-III, Master System, Game Gear & Mega Drive ports access
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/ntsc/sms_ntsc.c

@@ -88,6 +88,7 @@ void sms_ntsc_init( sms_ntsc_t* ntsc, sms_ntsc_setup_t const* setup )
 void sms_ntsc_blit( sms_ntsc_t const* ntsc, SMS_NTSC_IN_T const* table, unsigned char* input,
                     int in_width, int vline)
 {
+  int n;
   int const chunk_count = in_width / sms_ntsc_in_chunk;
 
   /* handle extra 0, 1, or 2 pixels by placing them at beginning of row */
@@ -102,9 +103,8 @@ void sms_ntsc_blit( sms_ntsc_t const* ntsc, SMS_NTSC_IN_T const* table, unsigned
       (SMS_NTSC_ADJ_IN( table[input[0]] )) & extra2,
       (SMS_NTSC_ADJ_IN( table[input[extra2 & 1]] )) & extra1 );
 
-  sms_ntsc_out_t* restrict line_out  = (sms_ntsc_out_t*)(&bitmap.data[(vline * bitmap.pitch)]);
+  sms_ntsc_out_t* line_out  = (sms_ntsc_out_t*)(&bitmap.data[(vline * bitmap.pitch)]);
 
-  int n;
   input += in_extra;
 
   for ( n = chunk_count; n; --n )

genplusgx_source/shared.h

@@ -28,6 +28,9 @@
 #ifdef HAVE_YM3438_CORE
 #include "ym3438.h"
 #endif
+#ifdef HAVE_OPLL_CORE
+#include "opll.h"
+#endif
 #include "sram.h"
 #include "ggenie.h"
 #include "areplay.h"

genplusgx_source/sound/opll.h

@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2019 Nuke.YKT
+ * 
+ *  Redistribution and use of this code or any derivative works are permitted
+ *  provided that the following conditions are met:
+ *
+ *   - Redistributions may not be sold, nor may they be used in a commercial
+ *     product or activity.
+ *
+ *   - Redistributions that are modified from the original source must include the
+ *     complete source code, including the source code for all components used by a
+ *     binary built from the modified sources. However, as a special exception, the
+ *     source code distributed need not include anything that is normally distributed
+ *     (in either source or binary form) with the major components (compiler, kernel,
+ *     and so on) of the operating system on which the executable runs, unless that
+ *     component itself accompanies the executable.
+ *
+ *   - Redistributions must reproduce the above copyright notice, this list of
+ *     conditions and the following disclaimer in the documentation and/or other
+ *     materials provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *  POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ *  Yamaha YM2413 emulator
+ *  Thanks:
+ *      siliconpr0n.org(digshadow, John McMaster):
+ *          VRC VII decap and die shot.
+ *
+ *  version: 1.0
+ */
+
+#ifndef OPLL_H
+#define OPLL_H
+
+#include <stdint.h>
+
+enum {
+    opll_type_ym2413 = 0x00,    /* Yamaha YM2413  */
+    opll_type_ds1001,           /* Konami VRC VII */
+    opll_type_ym2413b           /* Yamaha YM2413B */
+};
+
+enum {
+    opll_patch_1 = 0x00,
+    opll_patch_2,
+    opll_patch_3,
+    opll_patch_4,
+    opll_patch_5,
+    opll_patch_6,
+    opll_patch_7,
+    opll_patch_8,
+    opll_patch_9,
+    opll_patch_10,
+    opll_patch_11,
+    opll_patch_12,
+    opll_patch_13,
+    opll_patch_14,
+    opll_patch_15,
+    opll_patch_drum_0,
+    opll_patch_drum_1,
+    opll_patch_drum_2,
+    opll_patch_drum_3,
+    opll_patch_drum_4,
+    opll_patch_drum_5,
+    opll_patch_max
+};
+
+typedef struct {
+    uint8_t tl;
+    uint8_t dc;
+    uint8_t dm;
+    uint8_t fb;
+    uint8_t am[2];
+    uint8_t vib[2];
+    uint8_t et[2];
+    uint8_t ksr[2];
+    uint8_t multi[2];
+    uint8_t ksl[2];
+    uint8_t ar[2];
+    uint8_t dr[2];
+    uint8_t sl[2];
+    uint8_t rr[2];
+} opll_patch_t;
+
+typedef struct {
+    uint32_t chip_type;
+    uint32_t cycles;
+    uint32_t slot;
+    const opll_patch_t *patchrom;
+    /* IO */
+    uint8_t write_data;
+    uint8_t write_a;
+    uint8_t write_d;
+    uint8_t write_a_en;
+    uint8_t write_d_en;
+    uint8_t write_fm_address;
+    uint8_t write_fm_data;
+    uint8_t write_mode_address;
+    uint8_t address;
+    uint8_t data;
+    /* Envelope generator */
+    uint8_t eg_counter_state;
+    uint8_t eg_counter_state_prev;
+    uint32_t eg_timer;
+    uint8_t eg_timer_low_lock;
+    uint8_t eg_timer_carry;
+    uint8_t eg_timer_shift;
+    uint8_t eg_timer_shift_lock;
+    uint8_t eg_timer_shift_stop;
+    uint8_t eg_state[18];
+    uint8_t eg_level[18];
+    uint8_t eg_kon;
+    uint32_t eg_dokon;
+    uint8_t eg_off;
+    uint8_t eg_rate;
+    uint8_t eg_maxrate;
+    uint8_t eg_zerorate;
+    uint8_t eg_inc_lo;
+    uint8_t eg_inc_hi;
+    uint8_t eg_rate_hi;
+    uint16_t eg_sl;
+    uint16_t eg_ksltl;
+    uint8_t eg_out;
+    uint8_t eg_silent;
+    /* Phase generator */
+    uint16_t pg_fnum;
+    uint8_t pg_block;
+    uint16_t pg_out;
+    uint32_t pg_inc;
+    uint32_t pg_phase[18];
+    uint32_t pg_phase_next;
+    /* Operator */
+    int16_t op_fb1[9];
+    int16_t op_fb2[9];
+    int16_t op_fbsum;
+    int16_t op_mod;
+    uint8_t op_neg;
+    uint16_t op_logsin;
+    uint16_t op_exp_m;
+    uint16_t op_exp_s;
+    /* Channel */
+    int16_t ch_out;
+    int16_t ch_out_hh;
+    int16_t ch_out_tm;
+    int16_t ch_out_bd;
+    int16_t ch_out_sd;
+    int16_t ch_out_tc;
+    /* LFO */
+    uint16_t lfo_counter;
+    uint8_t lfo_vib_counter;
+    uint16_t lfo_am_counter;
+    uint8_t lfo_am_step;
+    uint8_t lfo_am_dir;
+    uint8_t lfo_am_car;
+    uint8_t lfo_am_out;
+    /* Register set */
+    uint16_t fnum[9];
+    uint8_t block[9];
+    uint8_t kon[9];
+    uint8_t son[9];
+    uint8_t vol[9];
+    uint8_t inst[9];
+    uint8_t rhythm;
+    uint8_t testmode;
+    opll_patch_t patch;
+    uint8_t c_instr;
+    uint8_t c_op;
+    uint8_t c_tl;
+    uint8_t c_dc;
+    uint8_t c_dm;
+    uint8_t c_fb;
+    uint8_t c_am;
+    uint8_t c_vib;
+    uint8_t c_et;
+    uint8_t c_ksr;
+    uint8_t c_ksr_freq;
+    uint8_t c_ksl_freq;
+    uint8_t c_ksl_block;
+    uint8_t c_multi;
+    uint8_t c_ksl;
+    uint8_t c_adrr[3];
+    uint8_t c_sl;
+    uint16_t c_fnum;
+    uint16_t c_block;
+    /* Rhythm mode */
+    int8_t rm_enable;
+    uint32_t rm_noise;
+    uint32_t rm_select;
+    uint8_t rm_hh_bit2;
+    uint8_t rm_hh_bit3;
+    uint8_t rm_hh_bit7;
+    uint8_t rm_hh_bit8;
+    uint8_t rm_tc_bit3;
+    uint8_t rm_tc_bit5;
+
+    int16_t output_m;
+    int16_t output_r;
+
+} opll_t;
+
+void OPLL_Reset(opll_t *chip, uint32_t chip_type);
+void OPLL_Clock(opll_t *chip, int32_t *buffer);
+void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data);
+#endif

genplusgx_source/sound/psg.c

@@ -112,7 +112,7 @@ void psg_init(PSG_TYPE type)
   psg.noiseBitMask = noiseBitMask[type];
 }
 
-void psg_reset()
+void psg_reset(void)
 {
   int i;
 

genplusgx_source/sound/sound.c

@@ -3,7 +3,7 @@
  *  Sound Hardware
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2020  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -44,7 +44,7 @@
 #define YM2612_CLOCK_RATIO (7*6)
 
 /* FM output buffer (large enough to hold a whole frame at original chips rate) */
-#ifdef HAVE_YM3438_CORE
+#if defined(HAVE_YM3438_CORE) || defined(HAVE_OPLL_CORE)
 static int fm_buffer[1080 * 2 * 24];
 #else
 static int fm_buffer[1080 * 2];
@@ -72,6 +72,14 @@ static int ym3438_sample[2];
 static int ym3438_cycles;
 #endif
 
+#ifdef HAVE_OPLL_CORE
+static opll_t opll;
+static int opll_accm[18][2];
+static int opll_sample;
+static int opll_cycles;
+static int opll_status;
+#endif
+
 /* Run FM chip until required M-cycles */
 INLINE void fm_update(int cycles)
 {
@@ -126,7 +134,7 @@ static unsigned int YM2612_Read(unsigned int cycles, unsigned int a)
   if ((a == 0) || (config.ym2612 > YM2612_DISCRETE))
   {
     /* synchronize FM chip with CPU */
-    fm_update(cycles - fm_cycles_ratio + 1);
+    fm_update(cycles);
 
     /* read FM status */
     if (cycles >= fm_cycles_busy)
@@ -167,6 +175,11 @@ static void YM2413_Write(unsigned int cycles, unsigned int a, unsigned int v)
   YM2413Write(a, v);
 }
 
+static unsigned int YM2413_Read(unsigned int cycles, unsigned int a)
+{
+    return YM2413Read();
+}
+
 #ifdef HAVE_YM3438_CORE
 static void YM3438_Update(int *buffer, int length)
 {
@@ -211,13 +224,66 @@ static void YM3438_Write(unsigned int cycles, unsigned int a, unsigned int v)
 static unsigned int YM3438_Read(unsigned int cycles, unsigned int a)
 {
   /* synchronize FM chip with CPU */
-  fm_update(cycles - fm_cycles_ratio + 1);
+  fm_update(cycles);
 
   /* read FM status */
   return OPN2_Read(&ym3438, a);
 }
 #endif
 
+#ifdef HAVE_OPLL_CORE
+static void OPLL2413_Update(int* buffer, int length)
+{
+  int i, j;
+  for (i = 0; i < length; i++)
+  {
+    OPLL_Clock(&opll, opll_accm[opll_cycles]);
+    opll_cycles = (opll_cycles + 1) % 18;
+    if (opll_cycles == 0)
+    {
+      opll_sample = 0;
+      for (j = 0; j < 18; j++)
+      {
+        opll_sample += opll_accm[j][0] + opll_accm[j][1];
+      }
+    }
+    *buffer++ = opll_sample * 16 * opll_status;
+    *buffer++ = opll_sample * 16 * opll_status;
+  }
+}
+
+static void OPLL2413_Reset(unsigned int cycles)
+{
+  /* synchronize FM chip with CPU */
+  fm_update(cycles);
+
+  /* reset FM chip */
+  OPLL_Reset(&opll, opll_type_ym2413);
+}
+
+static void OPLL2413_Write(unsigned int cycles, unsigned int a, unsigned int v)
+{
+  if (!(a&2))
+  {
+    /* synchronize FM chip with CPU */
+    fm_update(cycles);
+
+    /* write FM register */
+    OPLL_Write(&opll, a, v);
+  }
+  else
+  {
+    opll_status = v&1;
+  }
+}
+
+static unsigned int OPLL2413_Read(unsigned int cycles, unsigned int a)
+{
+    return 0xf8 | opll_status;
+}
+
+#endif
+
 void sound_init( void )
 {
   /* Initialize FM chip */
@@ -257,14 +323,34 @@ void sound_init( void )
   else
   {
     /* YM2413 */
-    YM2413Init();
-    YM_Update = (config.ym2413 & 1) ? YM2413Update : NULL;
-    fm_reset = YM2413_Reset;
-    fm_write = YM2413_Write;
-    fm_read = NULL;
+#ifdef HAVE_OPLL_CORE
+    if (config.opll)
+    {
+      /* Nuked OPLL */
+      memset(&opll, 0, sizeof(opll));
+      memset(&opll_accm, 0, sizeof(opll_accm));
+      opll_sample = 0;
+      opll_status = 0;
+      YM_Update = (config.ym2413 & 1) ? OPLL2413_Update : NULL;
+      fm_reset = OPLL2413_Reset;
+      fm_write = OPLL2413_Write;
+      fm_read = OPLL2413_Read;
 
-    /* chip is running at ZCLK / 72 = MCLK / 15 / 72 */
-    fm_cycles_ratio = 72 * 15;
+      /* chip is running at internal clock */
+      fm_cycles_ratio = 4 * 15;
+    }
+    else
+#endif
+    {
+      YM2413Init();
+      YM_Update = (config.ym2413 & 1) ? YM2413Update : NULL;
+      fm_reset = YM2413_Reset;
+      fm_write = YM2413_Write;
+      fm_read = YM2413_Read;
+
+      /* chip is running at ZCLK / 72 = MCLK / 15 / 72 */
+      fm_cycles_ratio = 72 * 15;
+    }
   }
 
   /* Initialize PSG chip */
@@ -401,7 +487,21 @@ int sound_context_save(uint8 *state)
   }
   else
   {
-    save_param(YM2413GetContextPtr(),YM2413GetContextSize());
+#ifdef HAVE_OPLL_CORE
+    save_param(&config.opll, sizeof(config.opll));
+    if (config.opll)
+    {
+      save_param(&opll, sizeof(opll));
+      save_param(&opll_accm, sizeof(opll_accm));
+      save_param(&opll_sample, sizeof(opll_sample));
+      save_param(&opll_cycles, sizeof(opll_cycles));
+      save_param(&opll_status, sizeof(opll_status));
+    }
+    else
+#endif
+    {
+      save_param(YM2413GetContextPtr(),YM2413GetContextSize());
+    }
   }
 
   bufferptr += psg_context_save(&state[bufferptr]);
@@ -437,7 +537,22 @@ int sound_context_load(uint8 *state)
   }
   else
   {
-    load_param(YM2413GetContextPtr(),YM2413GetContextSize());
+#ifdef HAVE_OPLL_CORE
+    uint8 config_opll;
+    load_param(&config_opll, sizeof(config_opll));
+    if (config_opll)
+    {
+      load_param(&opll, sizeof(opll));
+      load_param(&opll_accm, sizeof(opll_accm));
+      load_param(&opll_sample, sizeof(opll_sample));
+      load_param(&opll_cycles, sizeof(opll_cycles));
+      load_param(&opll_status, sizeof(opll_status));
+    }
+    else
+#endif
+    {
+      load_param(YM2413GetContextPtr(),YM2413GetContextSize());
+    }
   }
 
   bufferptr += psg_context_load(&state[bufferptr]);

genplusgx_source/sound/sound.h

@@ -3,7 +3,7 @@
  *  Sound Hardware
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2020  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/sound/ym2413.c

@@ -25,7 +25,22 @@ to do:
 
 */
 
-/** EkeEke (2011): removed multiple chips support, cleaned code & added FM board interface for Genesis Plus GX **/
+/************************************************/
+/** Modifications for Genesis Plus GX (EkeEke) **/
+/************************************************/
+/** 2011/xx/xx: removed multiple chips support, cleaned code & added FM board interface **/
+/** 2021/04/23: fixed synchronization of carrier/modulator phase reset after channel Key ON (fixes Japanese Master System BIOS music) **/
+/** 2021/04/24: fixed intruments ROM (verified on YM2413B die, cf. https://siliconpr0n.org/archive/doku.php?id=vendor:yamaha:opl2#ym2413_instrument_rom) **/
+/** 2021/04/24: fixed EG resolution bits (verified on YM2413B die, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2015-03-20) **/
+/** 2021/04/24: fixed EG dump rate (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2015-12-31) **/
+/** 2021/04/25: fixed EG behavior for fastest attack rates (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) **/
+/** 2021/04/25: fixed EG behavior when SL = 0 (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2015-12-24) **/
+/** 2021/04/25: improved EG sustain phase transition comparator accuracy (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2015-12-31) **/
+/** 2021/05/04: improved EG increment steps accuracy (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2015-03-20) **/
+/** 2021/05/08: improved EG transitions accuracy (verified against https://github.com/nukeykt/Nuked-OPLL/blob/master/opll.c) **/
+/** 2021/05/11: improved EG attack phase algorithm accuracy (verified on YM2413 real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) **/
+/** 2022/08/07: fixed operator ouput when EG is off **/
+/************************************************/
 
 #include "shared.h"
 
@@ -40,7 +55,7 @@ to do:
 #define ENV_LEN      (1<<ENV_BITS)
 #define ENV_STEP    (128.0/ENV_LEN)
 
-#define MAX_ATT_INDEX  ((1<<(ENV_BITS-2))-1) /*255*/
+#define MAX_ATT_INDEX  ((1<<(ENV_BITS-3))-1) /*127*/
 #define MIN_ATT_INDEX  (0)
 
 /* sinwave entries */
@@ -89,7 +104,7 @@ typedef struct
   UINT8  eg_sh_dp;  /* (dump state)                   */
   UINT8  eg_sel_dp; /* (dump state)                   */
   UINT8  eg_sh_ar;  /* (attack state)                 */
-  UINT8  eg_sel_ar; /* (attack state)                 */
+  UINT16 eg_sel_ar; /* (attack state)                 */
   UINT8  eg_sh_dr;  /* (decay state)                  */
   UINT8  eg_sel_dr; /* (decay state)                  */
   UINT8  eg_sh_rr;  /* (release state for non-perc.)  */
@@ -219,67 +234,100 @@ static const UINT32 sl_tab[16]={
 #undef SC
 
 
-#define RATE_STEPS (8)
-static const unsigned char eg_inc[15*RATE_STEPS]={
+#define RATE_STEPS (16)
 
-/*cycle:0 1  2 3  4 5  6 7*/
+static const unsigned char eg_inc[14*RATE_STEPS]={
 
-/* 0 */ 0,1, 0,1, 0,1, 0,1, /* rates 00..12 0 (increment by 0 or 1) */
-/* 1 */ 0,1, 0,1, 1,1, 0,1, /* rates 00..12 1 */
-/* 2 */ 0,1, 1,1, 0,1, 1,1, /* rates 00..12 2 */
-/* 3 */ 0,1, 1,1, 1,1, 1,1, /* rates 00..12 3 */
+/*cycle:0 1  2 3  4 5  6 7  8 9  10 11  12 13  14 15*/
 
-/* 4 */ 1,1, 1,1, 1,1, 1,1, /* rate 13 0 (increment by 1) */
-/* 5 */ 1,1, 1,2, 1,1, 1,2, /* rate 13 1 */
-/* 6 */ 1,2, 1,2, 1,2, 1,2, /* rate 13 2 */
-/* 7 */ 1,2, 2,2, 1,2, 2,2, /* rate 13 3 */
+/* 0 */ 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, /* infinity rates for decay(s) */
 
-/* 8 */ 2,2, 2,2, 2,2, 2,2, /* rate 14 0 (increment by 2) */
-/* 9 */ 2,2, 2,4, 2,2, 2,4, /* rate 14 1 */
-/*10 */ 2,4, 2,4, 2,4, 2,4, /* rate 14 2 */
-/*11 */ 2,4, 4,4, 2,4, 4,4, /* rate 14 3 */
+/* 1 */ 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, /* rates 01..12 0 for decay(s) (increment by 0 or 1) */
+/* 2 */ 0,1, 1,1, 0,1, 0,1, 0,1, 1,1, 0,1, 0,1, /* rates 01..12 1 for decay(s) */
+/* 3 */ 0,1, 1,1, 0,1, 1,1, 0,1, 1,1, 0,1, 1,1, /* rates 01..12 2 for decay(s) */
+/* 4 */ 0,1, 1,1, 1,1, 1,1, 0,1, 1,1, 1,1, 1,1, /* rates 01..12 3 for decay(s) */
+
+/* 5 */ 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, /* rate 13 0 for decay(s) (increment by 0 or 1) */
+/* 6 */ 0,1, 0,1, 1,1, 1,1, 0,1, 0,1, 0,1, 0,1, /* rate 13 1 for decay(s) */
+/* 7 */ 0,1, 0,1, 1,1, 1,1, 0,1, 0,1, 1,1, 1,1, /* rate 13 2 for decay(s) */
+/* 8 */ 0,1, 0,1, 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, /* rate 13 3 for decay(s) */
+
+/* 9 */ 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, /* rate 14 0 for decay(s) (increment by 1) */
+/*10 */ 1,1, 1,1, 2,2, 2,2, 1,1, 1,1, 1,1, 1,1, /* rate 14 1 for decay(s) */
+/*11 */ 1,1, 1,1, 2,2, 2,2, 1,1, 1,1, 2,2, 2,2, /* rate 14 2 for decay(s) */
+/*12 */ 1,1, 1,1, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, /* rate 14 3 for decay(s) */
+
+/*13 */ 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, /* rates 15 0, 15 1, 15 2, 15 3 for decay(s) (increment by 2) */
 
-/*12 */ 4,4, 4,4, 4,4, 4,4, /* rates 15 0, 15 1, 15 2, 15 3 (increment by 4) */
-/*13 */ 8,8, 8,8, 8,8, 8,8, /* rates 15 2, 15 3 for attack */
-/*14 */ 0,0, 0,0, 0,0, 0,0, /* infinity rates for attack and decay(s) */
 };
 
+static const unsigned char eg_mul[17*RATE_STEPS]={
+
+/*cycle:0 1  2 3  4 5  6 7  8 9  10 11  12 13  14 15*/
+
+/* 0 */ 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, 0,0, /* infinity rates for attack */
+
+/* 1 */ 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, 0,1, /* rates 01..11 0 for attack */
+/* 2 */ 0,1, 1,1, 0,1, 0,1, 0,1, 1,1, 0,1, 0,1, /* rates 01..11 1 for attack */
+/* 3 */ 0,1, 1,1, 0,1, 1,1, 0,1, 1,1, 0,1, 1,1, /* rates 01..11 2 for attack */
+/* 4 */ 0,1, 1,1, 1,1, 1,1, 0,1, 1,1, 1,1, 1,1, /* rates 01..11 3 for attack */
+
+/* 5 */ 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, 1,1, /* rate 12 0 for attack */
+/* 6 */ 1,1, 1,1, 2,2, 2,2, 1,1, 1,1, 1,1, 1,1, /* rate 12 1 for attack */
+/* 7 */ 1,1, 1,1, 2,2, 2,2, 1,1, 1,1, 2,2, 2,2, /* rate 12 2 for attack */
+/* 8 */ 1,1, 1,1, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, /* rate 12 3 for attack */
+
+/* 9 */ 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, 2,2, /* rate 13 0 for attack */
+/*10 */ 2,2, 2,2, 4,4, 4,4, 2,2, 2,2, 2,2, 2,2, /* rate 13 1 for attack */
+/*11 */ 2,2, 2,2, 4,4, 4,4, 2,2, 2,2, 4,4, 4,4, /* rate 13 2 for attack */
+/*12 */ 2,2, 2,2, 4,4, 4,4, 4,4, 4,4, 4,4, 4,4, /* rate 13 3 for attack */
+
+/*13 */ 4,4, 4,4, 4,4, 4,4, 4,4, 4,4, 4,4, 4,4, /* rate 14 0 for attack */
+/*14 */ 4,4, 4,4, 8,8, 8,8, 4,4, 4,4, 4,4, 4,4, /* rate 14 1 for attack */
+/*15 */ 4,4, 4,4, 8,8, 8,8, 4,4, 4,4, 8,8, 8,8, /* rate 14 2 for attack */
+/*16 */ 4,4, 4,4, 8,8, 8,8, 8,8, 8,8, 8,8, 8,8, /* rate 14 3 for attack */
+
+};
 
 #define O(a) (a*RATE_STEPS)
 
-/*note that there is no O(13) in this table - it's directly in the code */
 static const unsigned char eg_rate_select[16+64+16]={  /* Envelope Generator rates (16 + 64 rates + 16 RKS) */
+
 /* 16 infinite time rates */
-O(14),O(14),O(14),O(14),O(14),O(14),O(14),O(14),
-O(14),O(14),O(14),O(14),O(14),O(14),O(14),O(14),
+O(0),O(0),O(0),O(0),O(0),O(0),O(0),O(0),
+O(0),O(0),O(0),O(0),O(0),O(0),O(0),O(0),
 
-/* rates 00-12 */
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
-O( 0),O( 1),O( 2),O( 3),
+/* rate 00 */
+O( 0),O( 0),O( 0),O( 0), /* never used since infinite time rates are directly forced in the code for rate 00 */
 
-/* rate 13 */
-O( 4),O( 5),O( 6),O( 7),
+/* rates 01-11 */
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
+O( 1),O( 2),O( 3),O( 4),
 
-/* rate 14 */
-O( 8),O( 9),O(10),O(11),
+/* rate 12 */ /* only used for decay(s), handled directly in the code for attack */
+O( 1),O( 2),O( 3),O( 4),
 
-/* rate 15 */
-O(12),O(12),O(12),O(12),
+/* rate 13 */ /* only used for decay(s), handled directly in the code for attack */
+O( 5),O( 6),O( 7),O( 8),
+
+/* rate 14 */ /* only used for decay(s), handled directly in the code for attack */
+O( 9),O(10),O(11),O(12),
+
+/* rate 15 */ /* only used for decay(s), handled directly in the code for attack */
+O(13),O(13),O(13),O(13),
 
 /* 16 dummy rates (same as 15 3) */
-O(12),O(12),O(12),O(12),O(12),O(12),O(12),O(12),
-O(12),O(12),O(12),O(12),O(12),O(12),O(12),O(12),
+O(13),O(13),O(13),O(13),O(13),O(13),O(13),O(13),
+O(13),O(13),O(13),O(13),O(13),O(13),O(13),O(13),
 
 };
 #undef O
@@ -287,15 +335,19 @@ O(12),O(12),O(12),O(12),O(12),O(12),O(12),O(12),
 /*rate  0,    1,    2,    3,    4,   5,   6,   7,  8,  9, 10, 11, 12, 13, 14, 15 */
 /*shift 13,   12,   11,   10,   9,   8,   7,   6,  5,  4,  3,  2,  1,  0,  0,  0 */
 /*mask  8191, 4095, 2047, 1023, 511, 255, 127, 63, 31, 15, 7,  3,  1,  0,  0,  0 */
+/*NB: for attack, above mask values lower 2 bits are cleared and rate 12 shift value is equal to 0 */
 
 #define O(a) (a*1)
 static const unsigned char eg_rate_shift[16+64+16]={  /* Envelope Generator counter shifts (16 + 64 rates + 16 RKS) */
-/* 16 infinite time rates */
-O(0),O(0),O(0),O(0),O(0),O(0),O(0),O(0),
-O(0),O(0),O(0),O(0),O(0),O(0),O(0),O(0),
 
-/* rates 00-12 */
-O(13),O(13),O(13),O(13),
+/* 16 infinite time rates */
+O(13),O(13),O(13),O(13),O(13),O(13),O(13),O(13),
+O(13),O(13),O(13),O(13),O(13),O(13),O(13),O(13),
+
+/* rate 00 */
+O(13),O(13),O(13),O(13), /* never used since infinite time rates are directly forced in the code for rate 00 */
+
+/* rates 01-11 */
 O(12),O(12),O(12),O(12),
 O(11),O(11),O(11),O(11),
 O(10),O(10),O(10),O(10),
@@ -307,15 +359,17 @@ O( 5),O( 5),O( 5),O( 5),
 O( 4),O( 4),O( 4),O( 4),
 O( 3),O( 3),O( 3),O( 3),
 O( 2),O( 2),O( 2),O( 2),
+
+/* rate 12 */ /* only used for decay(s), handled directly in the code for attack */
 O( 1),O( 1),O( 1),O( 1),
 
-/* rate 13 */
+/* rate 13 */ /* only used for decay(s), handled directly in the code for attack */
 O( 0),O( 0),O( 0),O( 0),
 
-/* rate 14 */
+/* rate 14 */ /* only used for decay(s), handled directly in the code for attack */
 O( 0),O( 0),O( 0),O( 0),
 
-/* rate 15 */
+/* rate 15 */ /* only used for decay(s), handled directly in the code for attack */
 O( 0),O( 0),O( 0),O( 0),
 
 /* 16 dummy rates (same as 15 3) */
@@ -455,45 +509,71 @@ static const INT8 lfo_pm_table[8*8] = {
  - LFO PM and AM enable are 100% correct
  - waveform DC and DM select are 100% correct
 */
+/* 2021/04/23: corrected with values extracted from YM2413 instrument ROM, cf. https://siliconpr0n.org/archive/doku.php?id=vendor:yamaha:opl2#ym2413_instrument_rom */
 
 static unsigned char table[19][8] = {
 /* MULT  MULT modTL DcDmFb AR/DR AR/DR SL/RR SL/RR */
 /*   0     1     2     3     4     5     6    7    */
-  {0x49, 0x4c, 0x4c, 0x12, 0x00, 0x00, 0x00, 0x00 },  /* 0 */
+/*{0x49, 0x4c, 0x4c, 0x12, 0x00, 0x00, 0x00, 0x00 }, */ /* 0 */
+  {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },  /* 0 */
 
-  {0x61, 0x61, 0x1e, 0x17, 0xf0, 0x78, 0x00, 0x17 },  /* 1 */
-  {0x13, 0x41, 0x1e, 0x0d, 0xd7, 0xf7, 0x13, 0x13 },  /* 2 */
-  {0x13, 0x01, 0x99, 0x04, 0xf2, 0xf4, 0x11, 0x23 },  /* 3 */
-  {0x21, 0x61, 0x1b, 0x07, 0xaf, 0x64, 0x40, 0x27 },  /* 4 */
+/*{0x61, 0x61, 0x1e, 0x17, 0xf0, 0x78, 0x00, 0x17 }, */ /* 1 */
+  {0x71, 0x61, 0x1e, 0x17, 0xd0, 0x78, 0x00, 0x17 }, /* 1 */
+
+/*{0x13, 0x41, 0x1e, 0x0d, 0xd7, 0xf7, 0x13, 0x13 }, */ /* 2 */
+  {0x13, 0x41, 0x1a, 0x0d, 0xd8, 0xf7, 0x23, 0x13 }, /* 2 */
+
+/*{0x13, 0x01, 0x99, 0x04, 0xf2, 0xf4, 0x11, 0x23 }, */ /* 3 */
+  {0x13, 0x01, 0x99, 0x00, 0xf2, 0xc4, 0x11, 0x23 }, /* 3 */
+
+/*{0x21, 0x61, 0x1b, 0x07, 0xaf, 0x64, 0x40, 0x27 }, */ /* 4 */
+  {0x31, 0x61, 0x0e, 0x07, 0xa8, 0x64, 0x70, 0x27 }, /* 4 */
 
 /*{0x22, 0x21, 0x1e, 0x09, 0xf0, 0x76, 0x08, 0x28 },  */ /* 5 */
-  {0x22, 0x21, 0x1e, 0x06, 0xf0, 0x75, 0x08, 0x18 },  /* 5 */
+/*{0x22, 0x21, 0x1e, 0x06, 0xf0, 0x75, 0x08, 0x18 },  */ /* 5 */
+  {0x32, 0x21, 0x1e, 0x06, 0xe0, 0x76, 0x00, 0x28 }, /* 5 */
 
 /*{0x31, 0x22, 0x16, 0x09, 0x90, 0x7f, 0x00, 0x08 },  */ /* 6 */
-  {0x31, 0x22, 0x16, 0x05, 0x90, 0x71, 0x00, 0x13 },  /* 6 */
+/*{0x31, 0x22, 0x16, 0x05, 0x90, 0x71, 0x00, 0x13 },  */ /* 6 */
+  {0x31, 0x22, 0x16, 0x05, 0xe0, 0x71, 0x00, 0x18 }, /* 6 */
 
-  {0x21, 0x61, 0x1d, 0x07, 0x82, 0x80, 0x10, 0x17 },  /* 7 */
-  {0x23, 0x21, 0x2d, 0x16, 0xc0, 0x70, 0x07, 0x07 },  /* 8 */
-  {0x61, 0x61, 0x1b, 0x06, 0x64, 0x65, 0x10, 0x17 },  /* 9 */
+/*{0x21, 0x61, 0x1d, 0x07, 0x82, 0x80, 0x10, 0x17 },  */ /* 7 */
+  {0x21, 0x61, 0x1d, 0x07, 0x82, 0x81, 0x10, 0x07 }, /* 7 */
 
-/* {0x61, 0x61, 0x0c, 0x08, 0x85, 0xa0, 0x79, 0x07 },  */ /* A */
-  {0x61, 0x61, 0x0c, 0x18, 0x85, 0xf0, 0x70, 0x07 },  /* A */
+/*{0x23, 0x21, 0x2d, 0x16, 0xc0, 0x70, 0x07, 0x07 },  */ /* 8 */
+  {0x23, 0x21, 0x2d, 0x14, 0xa2, 0x72, 0x00, 0x07 }, /* 8 */
 
-  {0x23, 0x01, 0x07, 0x11, 0xf0, 0xa4, 0x00, 0x22 },  /* B */
-  {0x97, 0xc1, 0x24, 0x07, 0xff, 0xf8, 0x22, 0x12 },  /* C */
+  {0x61, 0x61, 0x1b, 0x06, 0x64, 0x65, 0x10, 0x17 }, /* 9 */
 
-/* {0x61, 0x10, 0x0c, 0x08, 0xf2, 0xc4, 0x40, 0xc8 },  */ /* D */
-  {0x61, 0x10, 0x0c, 0x05, 0xf2, 0xf4, 0x40, 0x44 },  /* D */
+/*{0x61, 0x61, 0x0c, 0x08, 0x85, 0xa0, 0x79, 0x07 },  */ /* A */
+/*{0x61, 0x61, 0x0c, 0x18, 0x85, 0xf0, 0x70, 0x07 },  */ /* A */
+  {0x41, 0x61, 0x0b, 0x18, 0x85, 0xf7, 0x71, 0x07 }, /* A */
 
-  {0x01, 0x01, 0x55, 0x03, 0xf3, 0x92, 0xf3, 0xf3 },  /* E */
-  {0x61, 0x41, 0x89, 0x03, 0xf1, 0xf4, 0xf0, 0x13 },  /* F */
+/*{0x23, 0x01, 0x07, 0x11, 0xf0, 0xa4, 0x00, 0x22 },  */ /* B */
+  {0x13, 0x01, 0x83, 0x11, 0xfa, 0xe4, 0x10, 0x04 }, /* B */
+
+/*{0x97, 0xc1, 0x24, 0x07, 0xff, 0xf8, 0x22, 0x12 },  */ /* C */
+  {0x17, 0xc1, 0x24, 0x07, 0xf8, 0xf8, 0x22, 0x12 }, /* C */
+
+/*{0x61, 0x10, 0x0c, 0x08, 0xf2, 0xc4, 0x40, 0xc8 },  */ /* D */
+/*{0x61, 0x10, 0x0c, 0x05, 0xf2, 0xf4, 0x40, 0x44 },  */ /* D */
+  {0x61, 0x50, 0x0c, 0x05, 0xc2, 0xf5, 0x20, 0x42 }, /* D */
+
+/*{0x01, 0x01, 0x55, 0x03, 0xf3, 0x92, 0xf3, 0xf3 },  */ /* E */
+  {0x01, 0x01, 0x55, 0x03, 0xc9, 0x95, 0x03, 0x02 }, /* E */
+
+/*{0x61, 0x41, 0x89, 0x03, 0xf1, 0xf4, 0xf0, 0x13 },  */ /* F */
+  {0x61, 0x41, 0x89, 0x03, 0xf1, 0xe4, 0x40, 0x13 }, /* F */
 
 /* drum instruments definitions */
 /* MULTI MULTI modTL  xxx  AR/DR AR/DR SL/RR SL/RR */
 /*   0     1     2     3     4     5     6    7    */
-  {0x01, 0x01, 0x16, 0x00, 0xfd, 0xf8, 0x2f, 0x6d },/* BD(multi verified, modTL verified, mod env - verified(close), carr. env verifed) */
-  {0x01, 0x01, 0x00, 0x00, 0xd8, 0xd8, 0xf9, 0xf8 },/* HH(multi verified), SD(multi not used) */
-  {0x05, 0x01, 0x00, 0x00, 0xf8, 0xba, 0x49, 0x55 },/* TOM(multi,env verified), TOP CYM(multi verified, env verified) */
+/*{0x01, 0x01, 0x16, 0x00, 0xfd, 0xf8, 0x2f, 0x6d },*/ /* BD(multi verified, modTL verified, mod env - verified(close), carr. env verifed) */
+/*{0x01, 0x01, 0x00, 0x00, 0xd8, 0xd8, 0xf9, 0xf8 },*/ /* HH(multi verified), SD(multi not used) */
+/*{0x05, 0x01, 0x00, 0x00, 0xf8, 0xba, 0x49, 0x55 },*/ /* TOM(multi,env verified), TOP CYM(multi verified, env verified) */
+  {0x01, 0x01, 0x18, 0x0f, 0xdf, 0xf8, 0x6a, 0x6d }, /* BD */
+  {0x01, 0x01, 0x00, 0x00, 0xc8, 0xd8, 0xa7, 0x48 }, /* HH, SD */
+  {0x05, 0x01, 0x00, 0x00, 0xf8, 0xaa, 0x59, 0x55 }  /* TOM, TOP CYM */
 };
 
 static signed int output[2];
@@ -542,47 +622,55 @@ INLINE void advance(void)
 
       switch(op->state)
       {
-        case EG_DMP:    /* dump phase */
-        /*dump phase is performed by both operators in each channel*/
-        /*when CARRIER envelope gets down to zero level,
-        **  phases in BOTH opearators are reset (at the same time ?)
-        */
-          if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_dp)-1) ) )
+        case EG_DMP:  /* dump phase */
+          if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
           {
-            op->volume += eg_inc[op->eg_sel_dp + ((ym2413.eg_cnt>>op->eg_sh_dp)&7)];
+            op->state =  EG_ATT;
 
-            if ( op->volume >= MAX_ATT_INDEX )
+            /* force envelope to zero when attack rate is set to 15.0-15.3 */
+            if ((op->ar + op->ksr) >= 16+60)
             {
-              op->volume = MAX_ATT_INDEX;
-              op->state = EG_ATT;
-              /* restart Phase Generator  */
-              op->phase = 0;
+              op->volume = MIN_ATT_INDEX;
             }
+
+            /*dump phase is performed by both operators in each channel*/
+            /*when CARRIER envelope gets down to zero level,
+             *phases in BOTH operators are reset (at the same time ?)
+             */
+            if (i&1)
+            {
+              CH->SLOT[0].phase = CH->SLOT[1].phase = 0;
+            }
+          }
+          else if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_dp)-1) ) )
+          {
+            op->volume += eg_inc[op->eg_sel_dp + ((ym2413.eg_cnt>>op->eg_sh_dp)&15)];
           }
           break;
 
-        case EG_ATT:    /* attack phase */
-          if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_ar)-1) ) )
+        case EG_ATT:  /* attack phase */
+          if (op->volume == MIN_ATT_INDEX)
           {
-            op->volume += (~op->volume *
-                                           (eg_inc[op->eg_sel_ar + ((ym2413.eg_cnt>>op->eg_sh_ar)&7)])
-                                          ) >>2;
-
-            if (op->volume <= MIN_ATT_INDEX)
-            {
-              op->volume = MIN_ATT_INDEX;
-              op->state = EG_DEC;
-            }
+            op->state = EG_DEC;
+          }
+          else if ( !(ym2413.eg_cnt & (((1<<op->eg_sh_ar)-1) & ~3)) )
+          {
+            op->volume += (~op->volume * (eg_mul[op->eg_sel_ar + ((ym2413.eg_cnt>>op->eg_sh_ar)&15)]))>>4;
           }
           break;
 
         case EG_DEC:  /* decay phase */
-          if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_dr)-1) ) )
+          if ( (op->volume & ~7) == op->sl )  /* envelope level lowest 3 bits are ignored by the comparator */
           {
-            op->volume += eg_inc[op->eg_sel_dr + ((ym2413.eg_cnt>>op->eg_sh_dr)&7)];
-
-            if ( op->volume >= op->sl )
-              op->state = EG_SUS;
+            op->state = EG_SUS;
+          }
+          else if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_dr)-1) ) )
+          {
+            op->volume += eg_inc[op->eg_sel_dr + ((ym2413.eg_cnt>>op->eg_sh_dr)&15)];
+            if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
+            {
+              op->state = EG_OFF;
+            }
           }
           break;
 
@@ -591,19 +679,20 @@ INLINE void advance(void)
           one can change percusive/non-percussive modes on the fly and
           the chip will remain in sustain phase - verified on real YM3812 */
 
-          if(op->eg_type)    /* non-percussive mode (sustained tone) */
+          if (op->eg_type)  /* non-percussive mode (sustained tone) */
           {
                     /* do nothing */
           }
-          else        /* percussive mode */
+          else  /* percussive mode */
           {
             /* during sustain phase chip adds Release Rate (in percussive mode) */
             if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_rr)-1) ) )
             {
-              op->volume += eg_inc[op->eg_sel_rr + ((ym2413.eg_cnt>>op->eg_sh_rr)&7)];
-
-              if ( op->volume >= MAX_ATT_INDEX )
-                op->volume = MAX_ATT_INDEX;
+              op->volume += eg_inc[op->eg_sel_rr + ((ym2413.eg_cnt>>op->eg_sh_rr)&15)];
+              if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
+              {
+                op->state = EG_OFF;
+              }
             }
             /* else do nothing in sustain phase */
           }
@@ -629,7 +718,7 @@ INLINE void advance(void)
         */
           if ( (i&1) || ((ym2413.rhythm&0x20) && (i>=12)) )/* exclude modulators */
           {
-            if(op->eg_type)    /* non-percussive mode (sustained tone) */
+            if (op->eg_type)  /* non-percussive mode (sustained tone) */
             /*this is correct: use RR when SUS = OFF*/
             /*and use RS when SUS = ON*/
             {
@@ -637,10 +726,9 @@ INLINE void advance(void)
               {
                 if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_rs)-1) ) )
                 {
-                  op->volume += eg_inc[op->eg_sel_rs + ((ym2413.eg_cnt>>op->eg_sh_rs)&7)];
-                  if ( op->volume >= MAX_ATT_INDEX )
+                  op->volume += eg_inc[op->eg_sel_rs + ((ym2413.eg_cnt>>op->eg_sh_rs)&15)];
+                  if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
                   {
-                    op->volume = MAX_ATT_INDEX;
                     op->state = EG_OFF;
                   }
                 }
@@ -649,23 +737,21 @@ INLINE void advance(void)
               {
                 if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_rr)-1) ) )
                 {
-                  op->volume += eg_inc[op->eg_sel_rr + ((ym2413.eg_cnt>>op->eg_sh_rr)&7)];
-                  if ( op->volume >= MAX_ATT_INDEX )
+                  op->volume += eg_inc[op->eg_sel_rr + ((ym2413.eg_cnt>>op->eg_sh_rr)&15)];
+                  if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
                   {
-                    op->volume = MAX_ATT_INDEX;
                     op->state = EG_OFF;
                   }
                 }
               }
             }
-            else        /* percussive mode */
+            else  /* percussive mode */
             {
               if ( !(ym2413.eg_cnt & ((1<<op->eg_sh_rs)-1) ) )
               {
-                op->volume += eg_inc[op->eg_sel_rs + ((ym2413.eg_cnt>>op->eg_sh_rs)&7)];
-                if ( op->volume >= MAX_ATT_INDEX )
+                op->volume += eg_inc[op->eg_sel_rs + ((ym2413.eg_cnt>>op->eg_sh_rs)&15)];
+                if ( (op->volume & ~3) == (MAX_ATT_INDEX & ~3) )  /* envelope level lowest 2 bits are ignored by the comparator */
                 {
-                  op->volume = MAX_ATT_INDEX;
                   op->state = EG_OFF;
                 }
               }
@@ -673,8 +759,12 @@ INLINE void advance(void)
           }
           break;
 
-      default:
-      break;
+        case EG_OFF:  /* envelope off */
+          op->volume = MAX_ATT_INDEX;
+          break;
+
+        default:
+          break;
       }
     }
   }
@@ -766,7 +856,7 @@ INLINE signed int op_calc1(UINT32 phase, unsigned int env, signed int pm, unsign
   return tl_tab[p];
 }
 
-#define volume_calc(OP) ((OP)->TLL + ((UINT32)(OP)->volume) + (LFO_AM & (OP)->AMmask))
+#define volume_calc(OP) (((OP)-> state != EG_OFF) ? (OP)->TLL + ((UINT32)(OP)->volume) + (LFO_AM & (OP)->AMmask) : ENV_QUIET)
 
 /* calculate output */
 INLINE void chan_calc( YM2413_OPLL_CH *CH )
@@ -1119,9 +1209,8 @@ INLINE void KEY_OFF(YM2413_OPLL_SLOT *SLOT, UINT32 key_clr)
 
     if( !SLOT->key )
     {
-      /* phase -> Release */
-      if (SLOT->state>EG_REL)
-        SLOT->state = EG_REL;
+      /* phase -> Release (forced off if already at maximal attenuation level) */
+      SLOT->state = ( (SLOT->volume & ~3) == (MAX_ATT_INDEX & ~3) ) ? EG_OFF : EG_REL;
     }
   }
 }
@@ -1142,21 +1231,30 @@ INLINE void CALC_FCSLOT(YM2413_OPLL_CH *CH,YM2413_OPLL_SLOT *SLOT)
     SLOT->ksr = ksr;
 
     /* calculate envelope generator rates */
-    if ((SLOT->ar + SLOT->ksr) < 16+62)
+    if ((SLOT->ar + SLOT->ksr) >= 16+60)
     {
-      SLOT->eg_sh_ar  = eg_rate_shift [SLOT->ar + SLOT->ksr ];
-      SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr ];
+      /* attack phase is skipped in case attack rate is set to 15.0-15.3 before attack phase is started */
+      /* during attack phase, in case attack rate is changed to 15.0-15.3, attack phase is blocked */
+      /* (verified on real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) */
+      SLOT->eg_sh_ar  = 13;
+      SLOT->eg_sel_ar = 0 * RATE_STEPS;
     }
-    else
+    else if ((SLOT->ar + SLOT->ksr) >= 16+48)
     {
+      /* attack rates 12.0 to 14.3 have similar specific behavior */
+      /* (verified on real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) */
       SLOT->eg_sh_ar  = 0;
-      SLOT->eg_sel_ar = 13*RATE_STEPS;
+      SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr] + (4 * RATE_STEPS);
+    }
+    else 
+    {
+      SLOT->eg_sh_ar  = eg_rate_shift [SLOT->ar + SLOT->ksr];
+      SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr];
     }
     SLOT->eg_sh_dr  = eg_rate_shift [SLOT->dr + SLOT->ksr ];
     SLOT->eg_sel_dr = eg_rate_select[SLOT->dr + SLOT->ksr ];
     SLOT->eg_sh_rr  = eg_rate_shift [SLOT->rr + SLOT->ksr ];
     SLOT->eg_sel_rr = eg_rate_select[SLOT->rr + SLOT->ksr ];
-
   }
 
   if (CH->sus)
@@ -1167,7 +1265,7 @@ INLINE void CALC_FCSLOT(YM2413_OPLL_CH *CH,YM2413_OPLL_SLOT *SLOT)
   SLOT->eg_sh_rs  = eg_rate_shift [SLOT_rs + SLOT->ksr ];
   SLOT->eg_sel_rs = eg_rate_select[SLOT_rs + SLOT->ksr ];
 
-  SLOT_dp  = 16 + (13<<2);
+  SLOT_dp  = 16 + (12<<2);
   SLOT->eg_sh_dp  = eg_rate_shift [SLOT_dp + SLOT->ksr ];
   SLOT->eg_sel_dp = eg_rate_select[SLOT_dp + SLOT->ksr ];
 }
@@ -1225,15 +1323,25 @@ INLINE void set_ar_dr(int slot,int v)
 
   SLOT->ar = (v>>4)  ? 16 + ((v>>4)  <<2) : 0;
 
-  if ((SLOT->ar + SLOT->ksr) < 16+62)
+  if ((SLOT->ar + SLOT->ksr) >= 16+60)
   {
-    SLOT->eg_sh_ar  = eg_rate_shift [SLOT->ar + SLOT->ksr ];
-    SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr ];
+    /* attack phase is skipped in case attack rate is set to 15.0-15.3 before attack phase is started */
+    /* during attack phase, in case attack rate is changed to 15.0-15.3, attack phase is blocked */
+    /* (verified on real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) */
+    SLOT->eg_sh_ar  = 13;
+    SLOT->eg_sel_ar = 0 * RATE_STEPS;
   }
-  else
+  else if ((SLOT->ar + SLOT->ksr) >= 16+48)
   {
+    /* attack rates 12.0 to 14.3 have similar specific behavior */
+    /* (verified on real hardware, cf. https://www.smspower.org/Development/YM2413ReverseEngineeringNotes2017-01-26) */
     SLOT->eg_sh_ar  = 0;
-    SLOT->eg_sel_ar = 13*RATE_STEPS;
+    SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr] + (4 * RATE_STEPS);
+  }
+  else 
+  {
+    SLOT->eg_sh_ar  = eg_rate_shift [SLOT->ar + SLOT->ksr];
+    SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr];
   }
 
   SLOT->dr    = (v&0x0f)? 16 + ((v&0x0f)<<2) : 0;

genplusgx_source/sound/ym2612.c

@@ -20,6 +20,9 @@
 /*
 **  CHANGELOG:
 **
+** 11-05-2021 Eke-Eke (Genesis Plus GX):
+**  - fixed potential issue with SSG-EG inverted attenuation level on Key OFF
+**
 ** 03-12-2017 Eke-Eke (Genesis Plus GX):
 **  - improved 9-bit DAC emulation accuracy
 **  - added discrete YM2612 DAC distortion emulation ("ladder effect")
@@ -684,7 +687,7 @@ INLINE void FM_KEYOFF(FM_CH *CH , int s )
       {
         /* convert EG attenuation level */
         if (SLOT->ssgn ^ (SLOT->ssg&0x04))
-          SLOT->volume = (0x200 - SLOT->volume);
+          SLOT->volume = (0x200 - SLOT->volume) & MAX_ATT_INDEX;
 
         /* force EG attenuation level */
         if (SLOT->volume >= 0x200)
@@ -749,7 +752,7 @@ INLINE void FM_KEYOFF_CSM(FM_CH *CH , int s )
       {
         /* convert EG attenuation level */
         if (SLOT->ssgn ^ (SLOT->ssg&0x04))
-          SLOT->volume = (0x200 - SLOT->volume);
+          SLOT->volume = (0x200 - SLOT->volume) & MAX_ATT_INDEX;
 
         /* force EG attenuation level */
         if (SLOT->volume >= 0x200)
@@ -776,7 +779,7 @@ INLINE void CSMKeyControll(FM_CH *CH)
   ym2612.OPN.SL3.key_csm = 1;
 }
 
-INLINE void INTERNAL_TIMER_A()
+INLINE void INTERNAL_TIMER_A(void)
 {
   if (ym2612.OPN.ST.mode & 0x01)
   {
@@ -1031,7 +1034,7 @@ INLINE void set_sl_rr(FM_SLOT *SLOT,int v)
 }
 
 /* advance LFO to next sample */
-INLINE void advance_lfo()
+INLINE void advance_lfo(void)
 {
   if (ym2612.OPN.lfo_timer_overflow)   /* LFO enabled ? */
   {

genplusgx_source/sound/ym3438.c

@@ -1,6 +1,6 @@
 #ifdef HAVE_YM3438_CORE
 /*
- *  Copyright (C) 2017 Alexey Khokholov (Nuke.YKT)
+ *  Copyright (C) 2017-2018 Alexey Khokholov (Nuke.YKT)
  * 
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -40,7 +40,7 @@
  *      OPLx decapsulated(Matthew Gambrell, Olli Niemitalo):
  *          OPL2 ROMs.
  *
- * version: 1.0.8
+ * version: 1.0.10
  */
 
 #include <string.h>
@@ -235,7 +235,7 @@ static const Bit32u fm_algorithm[4][6][8] = {
 
 static Bit32u chip_type = ym3438_mode_readmode;
 
-void OPN2_DoIO(ym3438_t *chip)
+static void OPN2_DoIO(ym3438_t *chip)
 {
     /* Write signal check */
     chip->write_a_en = (chip->write_a & 0x03) == 0x01;
@@ -249,10 +249,10 @@ void OPN2_DoIO(ym3438_t *chip)
     chip->write_busy_cnt &= 0x1f;
 }
 
-void OPN2_DoRegWrite(ym3438_t *chip)
+static void OPN2_DoRegWrite(ym3438_t *chip)
 {
     Bit32u i;
-    Bit32u slot = chip->slot % 12;
+    Bit32u slot = chip->cycles % 12;
     Bit32u address;
     Bit32u channel = chip->channel;
     /* Update registers */
@@ -379,7 +379,7 @@ void OPN2_DoRegWrite(ym3438_t *chip)
         /* Data */
         if (chip->write_d_en && (chip->write_data & 0x100) == 0)
         {
-            switch (chip->address)
+            switch (chip->write_fm_mode_a)
             {
             case 0x21: /* LSI test 1 */
                 for (i = 0; i < 8; i++)
@@ -458,7 +458,7 @@ void OPN2_DoRegWrite(ym3438_t *chip)
         /* Address */
         if (chip->write_a_en)
         {
-            chip->write_fm_mode_a = chip->write_data & 0xff;
+            chip->write_fm_mode_a = chip->write_data & 0x1ff;
         }
     }
 
@@ -468,16 +468,18 @@ void OPN2_DoRegWrite(ym3438_t *chip)
     }
 }
 
-void OPN2_PhaseCalcIncrement(ym3438_t *chip)
+static void OPN2_PhaseCalcIncrement(ym3438_t *chip)
 {
+    Bit32u chan = chip->channel;
+    Bit32u slot = chip->cycles;
     Bit32u fnum = chip->pg_fnum;
     Bit32u fnum_h = fnum >> 4;
     Bit32u fm;
     Bit32u basefreq;
     Bit8u lfo = chip->lfo_pm;
     Bit8u lfo_l = lfo & 0x0f;
-    Bit8u pms = chip->pms[chip->channel];
-    Bit8u dt = chip->dt[chip->slot];
+    Bit8u pms = chip->pms[chan];
+    Bit8u dt = chip->dt[slot];
     Bit8u dt_l = dt & 0x03;
     Bit8u detune = 0;
     Bit8u block, note;
@@ -531,32 +533,32 @@ void OPN2_PhaseCalcIncrement(ym3438_t *chip)
         basefreq += detune;
     }
     basefreq &= 0x1ffff;
-    chip->pg_inc[chip->slot] = (basefreq * chip->multi[chip->slot]) >> 1;
-    chip->pg_inc[chip->slot] &= 0xfffff;
+    chip->pg_inc[slot] = (basefreq * chip->multi[slot]) >> 1;
+    chip->pg_inc[slot] &= 0xfffff;
 }
 
-void OPN2_PhaseGenerate(ym3438_t *chip)
+static void OPN2_PhaseGenerate(ym3438_t *chip)
 {
     Bit32u slot;
     /* Mask increment */
-    slot = (chip->slot + 20) % 24;
+    slot = (chip->cycles + 20) % 24;
     if (chip->pg_reset[slot])
     {
         chip->pg_inc[slot] = 0;
     }
     /* Phase step */
-    slot = (chip->slot + 19) % 24;
-    chip->pg_phase[slot] += chip->pg_inc[slot];
-    chip->pg_phase[slot] &= 0xfffff;
+    slot = (chip->cycles + 19) % 24;
     if (chip->pg_reset[slot] || chip->mode_test_21[3])
     {
         chip->pg_phase[slot] = 0;
     }
+    chip->pg_phase[slot] += chip->pg_inc[slot];
+    chip->pg_phase[slot] &= 0xfffff;
 }
 
-void OPN2_EnvelopeSSGEG(ym3438_t *chip)
+static void OPN2_EnvelopeSSGEG(ym3438_t *chip)
 {
-    Bit32u slot = chip->slot;
+    Bit32u slot = chip->cycles;
     Bit8u direction = 0;
     chip->eg_ssg_pgrst_latch[slot] = 0;
     chip->eg_ssg_repeat_latch[slot] = 0;
@@ -601,9 +603,9 @@ void OPN2_EnvelopeSSGEG(ym3438_t *chip)
     chip->eg_ssg_enable[slot] = (chip->ssg_eg[slot] >> 3) & 0x01;
 }
 
-void OPN2_EnvelopeADSR(ym3438_t *chip)
+static void OPN2_EnvelopeADSR(ym3438_t *chip)
 {
-    Bit32u slot = (chip->slot + 22) % 24;
+    Bit32u slot = (chip->cycles + 22) % 24;
 
     Bit8u nkon = chip->eg_kon_latch[slot];
     Bit8u okon = chip->eg_kon[slot];
@@ -725,12 +727,12 @@ void OPN2_EnvelopeADSR(ym3438_t *chip)
     chip->eg_state[slot] = nextstate;
 }
 
-void OPN2_EnvelopePrepare(ym3438_t *chip)
+static void OPN2_EnvelopePrepare(ym3438_t *chip)
 {
     Bit8u rate;
     Bit8u sum;
     Bit8u inc = 0;
-    Bit32u slot = chip->slot;
+    Bit32u slot = chip->cycles;
     Bit8u rate_sel;
 
     /* Prepare increment */
@@ -813,9 +815,9 @@ void OPN2_EnvelopePrepare(ym3438_t *chip)
     chip->eg_sl[0] = chip->sl[slot];
 }
 
-void OPN2_EnvelopeGenerate(ym3438_t *chip)
+static void OPN2_EnvelopeGenerate(ym3438_t *chip)
 {
-    Bit32u slot = (chip->slot + 23) % 24;
+    Bit32u slot = (chip->cycles + 23) % 24;
     Bit16u level;
 
     level = chip->eg_level[slot];
@@ -846,7 +848,7 @@ void OPN2_EnvelopeGenerate(ym3438_t *chip)
     chip->eg_out[slot] = level;
 }
 
-void OPN2_UpdateLFO(ym3438_t *chip)
+static void OPN2_UpdateLFO(ym3438_t *chip)
 {
     if ((chip->lfo_quotient & lfo_cycles[chip->lfo_freq]) == lfo_cycles[chip->lfo_freq])
     {
@@ -860,14 +862,14 @@ void OPN2_UpdateLFO(ym3438_t *chip)
     chip->lfo_cnt &= chip->lfo_en;
 }
 
-void OPN2_FMPrepare(ym3438_t *chip)
+static void OPN2_FMPrepare(ym3438_t *chip)
 {
-    Bit32u slot = (chip->slot + 6) % 24;
+    Bit32u slot = (chip->cycles + 6) % 24;
     Bit32u channel = chip->channel;
     Bit16s mod, mod1, mod2;
     Bit32u op = slot / 6;
     Bit8u connect = chip->connect[channel];
-    Bit32u prevslot = (chip->slot + 18) % 24;
+    Bit32u prevslot = (chip->cycles + 18) % 24;
 
     /* Calculate modulation */
     mod1 = mod2 = 0;
@@ -908,7 +910,7 @@ void OPN2_FMPrepare(ym3438_t *chip)
     }
     chip->fm_mod[slot] = mod;
 
-    slot = (chip->slot + 18) % 24;
+    slot = (chip->cycles + 18) % 24;
     /* OP1 */
     if (slot / 6 == 0)
     {
@@ -922,9 +924,9 @@ void OPN2_FMPrepare(ym3438_t *chip)
     }
 }
 
-void OPN2_ChGenerate(ym3438_t *chip)
+static void OPN2_ChGenerate(ym3438_t *chip)
 {
-    Bit32u slot = (chip->slot + 18) % 24;
+    Bit32u slot = (chip->cycles + 18) % 24;
     Bit32u channel = chip->channel;
     Bit32u op = slot / 6;
     Bit32u test_dac = chip->mode_test_2c[5];
@@ -957,16 +959,17 @@ void OPN2_ChGenerate(ym3438_t *chip)
     chip->ch_acc[channel] = sum;
 }
 
-void OPN2_ChOutput(ym3438_t *chip)
+static void OPN2_ChOutput(ym3438_t *chip)
 {
     Bit32u cycles = chip->cycles;
+    Bit32u slot = chip->cycles;
     Bit32u channel = chip->channel;
     Bit32u test_dac = chip->mode_test_2c[5];
     Bit16s out;
     Bit16s sign;
     Bit32u out_en;
     chip->ch_read = chip->ch_lock;
-    if (chip->slot < 12)
+    if (slot < 12)
     {
         /* Ch 4,5,6 */
         channel++;
@@ -1039,9 +1042,9 @@ void OPN2_ChOutput(ym3438_t *chip)
     }
 }
 
-void OPN2_FMGenerate(ym3438_t *chip)
+static void OPN2_FMGenerate(ym3438_t *chip)
 {
-    Bit32u slot = (chip->slot + 19) % 24;
+    Bit32u slot = (chip->cycles + 19) % 24;
     /* Calculate phase */
     Bit16u phase = (chip->fm_mod[slot] + (chip->pg_phase[slot] >> 10)) & 0x3ff;
     Bit16u quarter;
@@ -1077,7 +1080,7 @@ void OPN2_FMGenerate(ym3438_t *chip)
     chip->fm_out[slot] = output;
 }
 
-void OPN2_DoTimerA(ym3438_t *chip)
+static void OPN2_DoTimerA(ym3438_t *chip)
 {
     Bit16u time;
     Bit8u load;
@@ -1126,7 +1129,7 @@ void OPN2_DoTimerA(ym3438_t *chip)
     chip->timer_a_cnt = time & 0x3ff;
 }
 
-void OPN2_DoTimerB(ym3438_t *chip)
+static void OPN2_DoTimerB(ym3438_t *chip)
 {
     Bit16u time;
     Bit8u load;
@@ -1171,27 +1174,29 @@ void OPN2_DoTimerB(ym3438_t *chip)
     chip->timer_b_cnt = time & 0xff;
 }
 
-void OPN2_KeyOn(ym3438_t*chip)
+static void OPN2_KeyOn(ym3438_t*chip)
 {
+    Bit32u slot = chip->cycles;
+    Bit32u chan = chip->channel;
     /* Key On */
-    chip->eg_kon_latch[chip->slot] = chip->mode_kon[chip->slot];
-    chip->eg_kon_csm[chip->slot] = 0;
+    chip->eg_kon_latch[slot] = chip->mode_kon[slot];
+    chip->eg_kon_csm[slot] = 0;
     if (chip->channel == 2 && chip->mode_kon_csm)
     {
         /* CSM Key On */
-        chip->eg_kon_latch[chip->slot] = 1;
-        chip->eg_kon_csm[chip->slot] = 1;
+        chip->eg_kon_latch[slot] = 1;
+        chip->eg_kon_csm[slot] = 1;
     }
     if (chip->cycles == chip->mode_kon_channel)
     {
         /* OP1 */
-        chip->mode_kon[chip->channel] = chip->mode_kon_operator[0];
+        chip->mode_kon[chan] = chip->mode_kon_operator[0];
         /* OP2 */
-        chip->mode_kon[chip->channel + 12] = chip->mode_kon_operator[1];
+        chip->mode_kon[chan + 12] = chip->mode_kon_operator[1];
         /* OP3 */
-        chip->mode_kon[chip->channel + 6] = chip->mode_kon_operator[2];
+        chip->mode_kon[chan + 6] = chip->mode_kon_operator[2];
         /* OP4 */
-        chip->mode_kon[chip->channel + 18] = chip->mode_kon_operator[3];
+        chip->mode_kon[chan + 18] = chip->mode_kon_operator[3];
     }
 }
 
@@ -1220,6 +1225,7 @@ void OPN2_SetChipType(Bit32u type)
 
 void OPN2_Clock(ym3438_t *chip, Bit16s *buffer)
 {
+    Bit32u slot = chip->cycles;
     chip->lfo_inc = chip->mode_test_21[1];
     chip->pg_read >>= 1;
     chip->eg_read[1] >>= 1;
@@ -1310,7 +1316,7 @@ void OPN2_Clock(ym3438_t *chip, Bit16s *buffer)
     if (chip->mode_ch3)
     {
         /* Channel 3 special mode */
-        switch (chip->slot)
+        switch (slot)
         {
         case 1: /* OP1 */
             chip->pg_fnum = chip->fnum_3ch[1];
@@ -1345,7 +1351,6 @@ void OPN2_Clock(ym3438_t *chip, Bit16s *buffer)
     OPN2_UpdateLFO(chip);
     OPN2_DoRegWrite(chip);
     chip->cycles = (chip->cycles + 1) % 24;
-    chip->slot = chip->cycles;
     chip->channel = chip->cycles % 6;
 
     buffer[0] = chip->mol;
@@ -1397,6 +1402,7 @@ Bit8u OPN2_Read(ym3438_t *chip, Bit32u port)
         if (chip->mode_test_21[6])
         {
             /* Read test data */
+            Bit32u slot = (chip->cycles + 18) % 24;
             Bit16u testdata = ((chip->pg_read & 0x01) << 15)
                             | ((chip->eg_read[chip->mode_test_21[0]] & 0x01) << 14);
             if (chip->mode_test_2c[4])
@@ -1405,7 +1411,7 @@ Bit8u OPN2_Read(ym3438_t *chip, Bit32u port)
             }
             else
             {
-                testdata |= chip->fm_out[(chip->slot + 18) % 24] & 0x3fff;
+                testdata |= chip->fm_out[slot] & 0x3fff;
             }
             if (chip->mode_test_21[7])
             {

genplusgx_source/sound/ym3438.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2017 Alexey Khokholov (Nuke.YKT)
+ *  Copyright (C) 2017-2018 Alexey Khokholov (Nuke.YKT)
  * 
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -39,15 +39,19 @@
  *      OPLx decapsulated(Matthew Gambrell, Olli Niemitalo):
  *          OPL2 ROMs.
  *
- * version: 1.0.8
+ * version: 1.0.9
  */
 
 #ifndef YM3438_H
 #define YM3438_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 enum {
     ym3438_mode_ym2612 = 0x01,      /* Enables YM2612 emulation (MD1, MD2 VA2) */
-    ym3438_mode_readmode = 0x02,    /* Enables status read on any port (TeraDrive, MD1 VA7, MD2, etc) */
+    ym3438_mode_readmode = 0x02     /* Enables status read on any port (TeraDrive, MD1 VA7, MD2, etc) */
 };
 
 #include <stdint.h>
@@ -66,7 +70,6 @@ typedef int8_t          Bit8s;
 typedef struct
 {
     Bit32u cycles;
-    Bit32u slot;
     Bit32u channel;
     Bit16s mol, mor;
     /* IO */
@@ -79,7 +82,7 @@ typedef struct
     Bit8u write_busy_cnt;
     Bit8u write_fm_address;
     Bit8u write_fm_data;
-    Bit8u write_fm_mode_a;
+    Bit16u write_fm_mode_a;
     Bit16u address;
     Bit8u data;
     Bit8u pin_test_in;
@@ -155,7 +158,7 @@ typedef struct
     Bit8u timer_a_load_latch;
     Bit8u timer_a_overflow_flag;
     Bit8u timer_a_overflow;
-    
+
     Bit16u timer_b_cnt;
     Bit8u timer_b_subcnt;
     Bit16u timer_b_reg;
@@ -166,7 +169,7 @@ typedef struct
     Bit8u timer_b_load_latch;
     Bit8u timer_b_overflow_flag;
     Bit8u timer_b_overflow;
-    
+
     /* Register set */
     Bit8u mode_test_21[8];
     Bit8u mode_test_2c[8];
@@ -178,7 +181,7 @@ typedef struct
     Bit8u mode_kon_csm;
     Bit8u dacen;
     Bit16s dacdata;
-    
+
     Bit8u ks[24];
     Bit8u ar[24];
     Bit8u sr[24];
@@ -190,7 +193,7 @@ typedef struct
     Bit8u am[24];
     Bit8u tl[24];
     Bit8u ssg_eg[24];
-    
+
     Bit16u fnum[6];
     Bit8u block[6];
     Bit8u kcode[6];
@@ -216,4 +219,9 @@ void OPN2_SetTestPin(ym3438_t *chip, Bit32u value);
 Bit32u OPN2_ReadTestPin(ym3438_t *chip);
 Bit32u OPN2_ReadIRQPin(ym3438_t *chip);
 Bit8u OPN2_Read(ym3438_t *chip, Bit32u port);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif

genplusgx_source/state.c

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Savestate support
  *
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -149,7 +149,7 @@ int state_load(unsigned char *state)
     load_param(&tmp32, 4); m68k_set_reg(M68K_REG_USP,tmp32);
     load_param(&tmp32, 4); m68k_set_reg(M68K_REG_ISP,tmp32);
 
-  	load_param(&m68k.cycles, sizeof(m68k.cycles));
+    load_param(&m68k.cycles, sizeof(m68k.cycles));
     load_param(&m68k.int_level, sizeof(m68k.int_level));
     load_param(&m68k.stopped, sizeof(m68k.stopped));
   }
@@ -173,7 +173,7 @@ int state_load(unsigned char *state)
     }
 
     /* CD hardware */
-    bufferptr += scd_context_load(&state[bufferptr]);
+    bufferptr += scd_context_load(&state[bufferptr], version);
   }
   else if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
   {  

genplusgx_source/state.h

@@ -2,7 +2,7 @@
  *  Genesis Plus
  *  Savestate support
  *
- *  Copyright (C) 2007-2019  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -40,7 +40,7 @@
 #define _STATE_H_
 
 #define STATE_SIZE    0xfd000
-#define STATE_VERSION "GENPLUS-GX 1.7.5"
+#define STATE_VERSION "GENPLUS-GX 1.7.6"
 
 #define load_param(param, size) \
   memcpy(param, &state[bufferptr], size); \

genplusgx_source/system.c

@@ -5,7 +5,7 @@
  *  Support for 16-bit & 8-bit hardware modes
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2021  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -130,8 +130,8 @@ void audio_set_rate(int samplerate, double framerate)
   /* resampled to desired rate at the end of each frame, using Blip Buffer.            */
   blip_set_rates(snd.blips[0], mclk, samplerate);
 
-  /* Mega CD sound hardware */
-  if (system_hw == SYSTEM_MCD)
+  /* Mega CD sound hardware enabled ? */
+  if (snd.blips[1] && snd.blips[2])
   {
     /* number of SCD master clocks run per second */
     mclk = (mclk / system_clock) * SCD_CLOCK;
@@ -195,14 +195,14 @@ int audio_update(int16 *buffer)
   /* run sound chips until end of frame */
   int size = sound_update(mcycles_vdp);
 
-  /* Mega CD specific */
-  if (system_hw == SYSTEM_MCD)
+  /* Mega CD sound hardware enabled ? */
+  if (snd.blips[1] && snd.blips[2])
   {
     /* sync PCM chip with other sound chips */
     pcm_update(size);
 
-    /* read CDDA samples */
-    cdd_read_audio(size);
+    /* read CD-DA samples */
+    cdd_update_audio(size);
 
 #ifdef ALIGN_SND
     /* return an aligned number of samples if required */

genplusgx_source/system.h

@@ -5,7 +5,7 @@
  *  Support for 16-bit & 8-bit hardware modes
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2018  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2022  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -45,17 +45,18 @@
 #include "blip_buf.h"
 
 /* Supported hardware models */
-#define SYSTEM_SG         0x10
-#define SYSTEM_SGII       0x11
-#define SYSTEM_MARKIII    0x12
-#define SYSTEM_SMS        0x20
-#define SYSTEM_SMS2       0x21
-#define SYSTEM_GG         0x40
-#define SYSTEM_GGMS       0x41
-#define SYSTEM_MD         0x80
-#define SYSTEM_PBC        0x81
-#define SYSTEM_PICO       0x82
-#define SYSTEM_MCD        0x84
+#define SYSTEM_SG           0x01
+#define SYSTEM_SGII         0x02
+#define SYSTEM_SGII_RAM_EXT 0x03
+#define SYSTEM_MARKIII      0x10
+#define SYSTEM_SMS          0x20
+#define SYSTEM_SMS2         0x21
+#define SYSTEM_GG           0x40
+#define SYSTEM_GGMS         0x41
+#define SYSTEM_MD           0x80
+#define SYSTEM_PBC          0x81
+#define SYSTEM_PICO         0x82
+#define SYSTEM_MCD          0x84
 
 /* NTSC & PAL Master Clock frequencies */
 #define MCLOCK_NTSC 53693175

genplusgx_source/vdp_ctrl.c

@@ -5,7 +5,7 @@
  *  Support for SG-1000 (TMS99xx & 315-5066), Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2017  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -53,6 +53,12 @@
   bg_name_dirty[name] |= (1 << ((addr >> 2) & 7));  \
 }
 
+/* HBLANK flag timings */
+#define HBLANK_H32_START_MCYCLE (280)
+#define HBLANK_H32_END_MCYCLE   (860)
+#define HBLANK_H40_START_MCYCLE (228)
+#define HBLANK_H40_END_MCYCLE   (872)
+
 /* VDP context */
 uint8 ALIGNED_(4) sat[0x400];    /* Internal copy of sprite attribute table */
 uint8 ALIGNED_(4) vram[0x10000]; /* Video RAM (64K x 8-bit) */
@@ -142,6 +148,8 @@ static int fifo_idx;          /* FIFO write index */
 static int fifo_byte_access;  /* FIFO byte access flag */
 static uint32 fifo_cycles;    /* FIFO next access cycle */
 static int *fifo_timing;      /* FIFO slots timing table */
+static int hblank_start_cycle;  /* HBLANK flag set cycle */
+static int hblank_end_cycle;    /* HBLANK flag clear cycle */
 
  /* set Z80 or 68k interrupt lines */
 static void (*set_irq_line)(unsigned int level);
@@ -323,6 +331,10 @@ void vdp_reset(void)
   /* default FIFO access slots timings */
   fifo_timing = (int *)fifo_timing_h32;
 
+  /* default HBLANK flag timings */
+  hblank_start_cycle = HBLANK_H32_START_MCYCLE;
+  hblank_end_cycle = HBLANK_H32_END_MCYCLE;
+
   /* default overscan area */
   if ((system_hw == SYSTEM_GG) && !config.gg_extra)
   {
@@ -362,6 +374,7 @@ void vdp_reset(void)
   {
     case SYSTEM_SG:
     case SYSTEM_SGII:
+    case SYSTEM_SGII_RAM_EXT:
     {
       /* SG-1000 (TMS99xx) or SG-1000 II (315-5066) VDP */
       vdp_z80_data_w = vdp_z80_data_w_sg;
@@ -708,6 +721,10 @@ void vdp_68k_ctrl_w(unsigned int data)
       }
     }
 
+    /* Update address and code registers */
+    addr = addr_latch | (data & 0x3FFF);
+    code = ((code & 0x3C) | ((data >> 14) & 0x03));
+
     /* Check CD0-CD1 bits */
     if ((data & 0xC000) == 0x8000)
     {
@@ -719,10 +736,6 @@ void vdp_68k_ctrl_w(unsigned int data)
       /* Set pending flag (Mode 5 only) */
       pending = reg[1] & 4;
     }
-
-    /* Update address and code registers */
-    addr = addr_latch | (data & 0x3FFF);
-    code = ((code & 0x3C) | ((data >> 14) & 0x03));
   }
   else
   {
@@ -1186,9 +1199,12 @@ unsigned int vdp_68k_ctrl_r(unsigned int cycles)
     temp |= 0x08;
   }
 
+  /* Adjust cycle count relatively to start of line */
+  cycles -= mcycles_vdp;
+
   /* Cycle-accurate VINT flag (Ex-Mutants, Tyrant / Mega-Lo-Mania, Marvel Land) */
   /* this allows VINT flag to be read just before vertical interrupt is being triggered */
-  if ((v_counter == bitmap.viewport.h) && (cycles >= (mcycles_vdp + 788)))
+  if ((v_counter == bitmap.viewport.h) && (cycles >= 788))
   {
     /* check Z80 interrupt state to assure VINT has not already been triggered (and flag cleared) */
     if (Z80.irq_state != ASSERT_LINE)
@@ -1197,15 +1213,14 @@ unsigned int vdp_68k_ctrl_r(unsigned int cycles)
     }
   }
 
-  /* Cycle-accurate HBLANK flag (Sonic 3 & Sonic 2 "VS Modes", Bugs Bunny Double Trouble, Lemmings 2, Mega Turrican, V.R Troopers, Gouketsuji Ichizoku,...) */
-  /* NB: this is not 100% accurate (see hvc.h for horizontal events timings in H32 and H40 mode) but is close enough to make no noticeable difference for games */
-  if ((cycles % MCYCLES_PER_LINE) < 588)
+  /* Cycle-accurate HBLANK flag (Sonic 3 & Sonic 2 "VS Modes", Bugs Bunny Double Trouble, Lemmings 2, Mega Turrican, V.R Troopers, Gouketsuji Ichizoku, Ultraverse Prime, ...) */
+  if ((cycles >= hblank_start_cycle) && (cycles < hblank_end_cycle))
   {
     temp |= 0x04;
   }
 
 #ifdef LOGVDP
-  error("[%d(%d)][%d(%d)] VDP 68k status read -> 0x%x (0x%x) (%x)\n", v_counter, (v_counter + (cycles - mcycles_vdp)/MCYCLES_PER_LINE)%lines_per_frame, cycles, cycles%MCYCLES_PER_LINE, temp, status, m68k_get_reg(M68K_REG_PC));
+  error("[%d(%d)][%d(%d)] VDP 68k status read -> 0x%x (0x%x) (%x)\n", v_counter, (v_counter + cycles/MCYCLES_PER_LINE)%lines_per_frame, cycles + mcycles_vdp, cycles%MCYCLES_PER_LINE, temp, status, m68k_get_reg(M68K_REG_PC));
 #endif
   return (temp);
 }
@@ -1691,7 +1706,7 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
             }
             else
             {
-              render_bg = (reg[11] & 0x04) ? render_bg_m5_vs : render_bg_m5;
+              render_bg = (reg[11] & 0x04) ? (config.enhanced_vscroll ? render_bg_m5_vs_enhanced : render_bg_m5_vs) : render_bg_m5;
               render_obj = (reg[12] & 0x08) ? render_obj_m5_ste : render_obj_m5;
             }
 
@@ -1902,7 +1917,7 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
       /* Vertical Scrolling mode */
       if (d & 0x04)
       {
-        render_bg = im2_flag ? render_bg_m5_im2_vs : render_bg_m5_vs;
+        render_bg = im2_flag ? render_bg_m5_im2_vs : (config.enhanced_vscroll ? render_bg_m5_vs_enhanced : render_bg_m5_vs);
       }
       else
       {
@@ -1975,6 +1990,10 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
 
           /* FIFO access slots timings */
           fifo_timing = (int *)fifo_timing_h40;
+
+          /* HBLANK flag timings */
+          hblank_start_cycle = HBLANK_H32_START_MCYCLE;
+          hblank_end_cycle = HBLANK_H32_END_MCYCLE;
         }
         else
         {
@@ -1995,6 +2014,10 @@ static void vdp_reg_w(unsigned int r, unsigned int d, unsigned int cycles)
 
           /* FIFO access slots timings */
           fifo_timing = (int *)fifo_timing_h32;
+
+          /* HBLANK flag timings */
+          hblank_start_cycle = HBLANK_H40_START_MCYCLE;
+          hblank_end_cycle = HBLANK_H40_END_MCYCLE;
         }
 
         /* Active screen width modified during VBLANK will be applied on upcoming frame */
@@ -2208,8 +2231,8 @@ static void vdp_bus_w(unsigned int data)
           color_update_m5(0x00, data);
         }
 
-        /* CRAM modified during HBLANK (Striker, Zero the Kamikaze, etc) */
-        if ((v_counter < bitmap.viewport.h) && (reg[1] & 0x40) && (m68k.cycles <= (mcycles_vdp + 860)))
+        /* CRAM modified during HBLANK (Striker, Zero the Kamikaze, Yuu Yuu Hakusho, etc) */
+        if ((v_counter < bitmap.viewport.h) && (m68k.cycles <= (mcycles_vdp + 860)) && ((reg[1] & 0x40) || (index == border)))
         {
           /* Remap current line */
           remap_line(v_counter);

genplusgx_source/vdp_ctrl.h

@@ -5,7 +5,7 @@
  *  Support for SG-1000 (TMS99xx & 315-5066), Master System (315-5124 & 315-5246), Game Gear & Mega Drive VDP
  *
  *  Copyright (C) 1998-2003  Charles Mac Donald (original code)
- *  Copyright (C) 2007-2017  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2007-2023  Eke-Eke (Genesis Plus GX)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:

genplusgx_source/vdp_render.c

@@ -6,6 +6,7 @@
  *
  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003  Charles Mac Donald (original code)
  *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2022  AlexKiri (enhanced vscroll mode rendering function)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -1035,6 +1036,7 @@ void color_update_m4(int index, unsigned int data)
 
     case SYSTEM_SG:
     case SYSTEM_SGII:
+    case SYSTEM_SGII_RAM_EXT:
     {
       /* Fixed TMS99xx palette */
       if (index & 0x0F)
@@ -1847,6 +1849,295 @@ void render_bg_m5_vs(int line)
   merge(&linebuf[1][0x20], &linebuf[0][0x20], &linebuf[0][0x20], lut[(reg[12] & 0x08) >> 2], bitmap.viewport.w);
 }
 
+/* Enhanced function that allows each cell to be vscrolled individually, instead of being limited to 2-cell */
+void render_bg_m5_vs_enhanced(int line)
+{
+  int column;
+  uint32 atex, atbuf, *src, *dst;
+  uint32 v_line, next_v_line, *nt;
+
+  /* Vertical scroll offset */
+  int v_offset = 0;
+
+  /* Common data */
+  uint32 xscroll      = *(uint32 *)&vram[hscb + ((line & hscroll_mask) << 2)];
+  uint32 yscroll      = 0;
+  uint32 pf_col_mask  = playfield_col_mask;
+  uint32 pf_row_mask  = playfield_row_mask;
+  uint32 pf_shift     = playfield_shift;
+  uint32 *vs          = (uint32 *)&vsram[0];
+
+  /* Window & Plane A */
+  int a = (reg[18] & 0x1F) << 3;
+  int w = (reg[18] >> 7) & 1;
+
+  /* Plane B width */
+  int start = 0;
+  int end = bitmap.viewport.w >> 4;
+
+  /* Plane B horizontal scroll */
+#ifdef LSB_FIRST
+  uint32 shift  = (xscroll >> 16) & 0x0F;
+  uint32 index  = pf_col_mask + 1 - ((xscroll >> 20) & pf_col_mask);
+#else
+  uint32 shift  = (xscroll & 0x0F);
+  uint32 index  = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
+#endif
+
+  /* Left-most column vertical scrolling when partially shown horizontally (verified on PAL MD2)  */
+  /* TODO: check on Genesis 3 models since it apparently behaves differently  */
+  /* In H32 mode, vertical scrolling is disabled, in H40 mode, same value is used for both planes */
+  /* See Formula One / Kawasaki Superbike Challenge (H32) & Gynoug / Cutie Suzuki no Ringside Angel (H40) */
+  if (reg[12] & 1)
+  {
+    yscroll = vs[19] & (vs[19] >> 16);
+  }
+
+  if(shift)
+  {
+    /* Plane B vertical scroll */
+    v_line = (line + yscroll) & pf_row_mask;
+
+    /* Plane B name table */
+    nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+    /* Pattern row index */
+    v_line = (v_line & 7) << 3;
+
+    /* Plane B line buffer */
+    dst = (uint32 *)&linebuf[0][0x10 + shift];
+
+    atbuf = nt[(index - 1) & pf_col_mask];
+    DRAW_COLUMN(atbuf, v_line)
+  }
+  else
+  {
+    /* Plane B line buffer */
+    dst = (uint32 *)&linebuf[0][0x20];
+  }
+
+  for(column = 0; column < end; column++, index++)
+  {
+    /* Plane B vertical scroll */
+#ifdef LSB_FIRST
+    v_line = (line + (vs[column] >> 16)) & pf_row_mask;
+    next_v_line = (line + (vs[column + 1] >> 16)) & pf_row_mask;
+#else
+    v_line = (line + vs[column]) & pf_row_mask;
+    next_v_line = (line + vs[column + 1]) & pf_row_mask;
+#endif
+
+    if (column != end - 1)
+    {
+      /* The offset of the intermediary cell is an average of the offsets of the current 2-cell and the next 2-cell. */
+      /* For the last column, the previously calculated offset is used */
+      v_offset = ((int)next_v_line - (int)v_line) / 2;
+      v_offset = (abs(v_offset) >= config.enhanced_vscroll_limit) ? 0 : v_offset;
+    }
+
+    /* Plane B name table */
+    nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+    /* Pattern row index */
+    v_line = (v_line & 7) << 3;
+
+    atbuf = nt[index & pf_col_mask];
+#ifdef LSB_FIRST
+    GET_LSB_TILE(atbuf, v_line)
+#else
+    GET_MSB_TILE(atbuf, v_line)
+#endif
+
+#ifdef ALIGN_LONG
+    WRITE_LONG(dst, src[0] | atex);
+    dst++;
+    WRITE_LONG(dst, src[1] | atex);
+    dst++;
+#else
+    *dst++ = (src[0] | atex);
+    *dst++ = (src[1] | atex);
+#endif
+
+#ifdef LSB_FIRST
+    v_line = (line + v_offset + (vs[column] >> 16)) & pf_row_mask;
+#else
+    v_line = (line + v_offset + vs[column]) & pf_row_mask;
+#endif
+
+    nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+    v_line = (v_line & 7) << 3;
+    atbuf = nt[index & pf_col_mask];
+
+#ifdef LSB_FIRST
+    GET_MSB_TILE(atbuf, v_line)
+#else
+    GET_LSB_TILE(atbuf, v_line)
+#endif
+#ifdef ALIGN_LONG
+    WRITE_LONG(dst, src[0] | atex);
+    dst++;
+    WRITE_LONG(dst, src[1] | atex);
+    dst++;
+#else
+    *dst++ = (src[0] | atex);
+    *dst++ = (src[1] | atex);
+#endif
+  }
+
+  if (w == (line >= a))
+  {
+    /* Window takes up entire line */
+    a = 0;
+    w = 1;
+  }
+  else
+  {
+    /* Window and Plane A share the line */
+    a = clip[0].enable;
+    w = clip[1].enable;
+  }
+
+  /* Plane A */
+  if (a)
+  {
+    /* Plane A width */
+    start = clip[0].left;
+    end   = clip[0].right;
+
+    /* Plane A horizontal scroll */
+#ifdef LSB_FIRST
+    shift = (xscroll & 0x0F);
+    index = pf_col_mask + start + 1 - ((xscroll >> 4) & pf_col_mask);
+#else
+    shift = (xscroll >> 16) & 0x0F;
+    index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
+#endif
+
+    if(shift)
+    {
+      /* Plane A vertical scroll */
+      v_line = (line + yscroll) & pf_row_mask;
+
+      /* Plane A name table */
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+      /* Pattern row index */
+      v_line = (v_line & 7) << 3;
+
+      /* Plane A line buffer */
+      dst = (uint32 *)&linebuf[1][0x10 + shift + (start << 4)];
+
+      /* Window bug */
+      if (start)
+      {
+        atbuf = nt[index & pf_col_mask];
+      }
+      else
+      {
+        atbuf = nt[(index - 1) & pf_col_mask];
+      }
+
+      DRAW_COLUMN(atbuf, v_line)
+    }
+    else
+    {
+      /* Plane A line buffer */
+      dst = (uint32 *)&linebuf[1][0x20 + (start << 4)];
+    }
+
+    for(column = start; column < end; column++, index++)
+    {
+      /* Plane A vertical scroll */
+#ifdef LSB_FIRST
+      v_line = (line + vs[column]) & pf_row_mask;
+      next_v_line = (line + vs[column + 1]) & pf_row_mask;
+#else
+      v_line = (line + (vs[column] >> 16)) & pf_row_mask;
+      next_v_line = (line + (vs[column + 1] >> 16)) & pf_row_mask;
+#endif
+
+      if (column != end - 1)
+      {
+        v_offset = ((int)next_v_line - (int)v_line) / 2;
+        v_offset = (abs(v_offset) >= config.enhanced_vscroll_limit) ? 0 : v_offset;
+      }
+
+      /* Plane A name table */
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+      /* Pattern row index */
+      v_line = (v_line & 7) << 3;
+
+      atbuf = nt[index & pf_col_mask];
+#ifdef LSB_FIRST
+      GET_LSB_TILE(atbuf, v_line)
+#else
+      GET_MSB_TILE(atbuf, v_line)
+#endif
+#ifdef ALIGN_LONG
+      WRITE_LONG(dst, src[0] | atex);
+      dst++;
+      WRITE_LONG(dst, src[1] | atex);
+      dst++;
+#else
+      *dst++ = (src[0] | atex);
+      *dst++ = (src[1] | atex);
+#endif
+
+#ifdef LSB_FIRST
+      v_line = (line + v_offset + vs[column]) & pf_row_mask;
+#else
+      v_line = (line + v_offset + (vs[column] >> 16)) & pf_row_mask;
+#endif
+
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+      v_line = (v_line & 7) << 3;
+      atbuf = nt[index & pf_col_mask];
+
+#ifdef LSB_FIRST
+      GET_MSB_TILE(atbuf, v_line)
+#else
+      GET_LSB_TILE(atbuf, v_line)
+#endif
+#ifdef ALIGN_LONG
+      WRITE_LONG(dst, src[0] | atex);
+      dst++;
+      WRITE_LONG(dst, src[1] | atex);
+      dst++;
+#else
+      *dst++ = (src[0] | atex);
+      *dst++ = (src[1] | atex);
+#endif
+    }
+
+    /* Window width */
+    start = clip[1].left;
+    end   = clip[1].right;
+  }
+
+  /* Window */
+  if (w)
+  {
+    /* Window name table */
+    nt = (uint32 *)&vram[ntwb | ((line >> 3) << (6 + (reg[12] & 1)))];
+
+    /* Pattern row index */
+    v_line = (line & 7) << 3;
+
+    /* Plane A line buffer */
+    dst = (uint32 *)&linebuf[1][0x20 + (start << 4)];
+
+    for(column = start; column < end; column++)
+    {
+      atbuf = nt[column];
+      DRAW_COLUMN(atbuf, v_line)
+    }
+  }
+
+  /* Merge background layers */
+  merge(&linebuf[1][0x20], &linebuf[0][0x20], &linebuf[0][0x20], lut[(reg[12] & 0x08) >> 2], bitmap.viewport.w);
+}
+
 void render_bg_m5_im2(int line)
 {
   int column;
@@ -2543,6 +2834,345 @@ void render_bg_m5_vs(int line)
   }
 }
 
+void render_bg_m5_vs_enhanced(int line)
+{
+  int column, start, end;
+  uint32 atex, atbuf, *src, *dst;
+  uint32 shift, index, v_line, next_v_line, *nt;
+  uint8 *lb;
+
+  /* Vertical scroll offset */
+  int v_offset = 0;
+
+  /* Scroll Planes common data */
+  uint32 xscroll      = *(uint32 *)&vram[hscb + ((line & hscroll_mask) << 2)];
+  uint32 yscroll      = 0;
+  uint32 pf_col_mask  = playfield_col_mask;
+  uint32 pf_row_mask  = playfield_row_mask;
+  uint32 pf_shift     = playfield_shift;
+  uint32 *vs          = (uint32 *)&vsram[0];
+
+  /* Number of columns to draw */
+  int width = bitmap.viewport.w >> 4;
+
+  /* Layer priority table */
+  uint8 *table = lut[(reg[12] & 8) >> 2];
+
+  /* Window vertical range (cell 0-31) */
+  int a = (reg[18] & 0x1F) << 3;
+
+  /* Window position (0=top, 1=bottom) */
+  int w = (reg[18] >> 7) & 1;
+
+  /* Test against current line */
+  if (w == (line >= a))
+  {
+    /* Window takes up entire line */
+    a = 0;
+    w = 1;
+  }
+  else
+  {
+    /* Window and Plane A share the line */
+    a = clip[0].enable;
+    w = clip[1].enable;
+  }
+
+  /* Left-most column vertical scrolling when partially shown horizontally */
+  /* Same value for both planes, only in 40-cell mode, verified on PAL MD2 */
+  /* See Gynoug, Cutie Suzuki no Ringside Angel, Formula One, Kawasaki Superbike Challenge */
+  if (reg[12] & 1)
+  {
+    yscroll = vs[19] & (vs[19] >> 16);
+  }
+
+  /* Plane A*/
+  if (a)
+  {
+    /* Plane A width */
+    start = clip[0].left;
+    end   = clip[0].right;
+
+    /* Plane A horizontal scroll */
+#ifdef LSB_FIRST
+    shift = (xscroll & 0x0F);
+    index = pf_col_mask + start + 1 - ((xscroll >> 4) & pf_col_mask);
+#else
+    shift = (xscroll >> 16) & 0x0F;
+    index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
+#endif
+
+    /* Background line buffer */
+    dst = (uint32 *)&linebuf[0][0x20 + (start << 4) + shift];
+
+    if(shift)
+    {
+      /* Left-most column is partially shown */
+      dst -= 4;
+
+      /* Plane A vertical scroll */
+      v_line = (line + yscroll) & pf_row_mask;
+
+      /* Plane A name table */
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+      /* Pattern row index */
+      v_line = (v_line & 7) << 3;
+
+      /* Window bug */
+      if (start)
+      {
+        atbuf = nt[index & pf_col_mask];
+      }
+      else
+      {
+        atbuf = nt[(index-1) & pf_col_mask];
+      }
+
+      DRAW_COLUMN(atbuf, v_line)
+    }
+
+    for(column = start; column < end; column++, index++)
+    {
+      /* Plane A vertical scroll */
+#ifdef LSB_FIRST
+      v_line = (line + vs[column]) & pf_row_mask;
+      next_v_line = (line + vs[column + 1]) & pf_row_mask;
+#else
+      v_line = (line + (vs[column] >> 16)) & pf_row_mask;
+      next_v_line = (line + (vs[column + 1] >> 16)) & pf_row_mask;
+#endif
+
+      if (column != end - 1)
+      {
+        v_offset = ((int)next_v_line - (int)v_line) / 2;
+        v_offset = (abs(v_offset) >= config.enhanced_vscroll_limit) ? 0 : v_offset;
+      }
+
+      /* Plane A name table */
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+      /* Pattern row index */
+      v_line = (v_line & 7) << 3;
+
+      atbuf = nt[index & pf_col_mask];
+#ifdef LSB_FIRST
+      GET_LSB_TILE(atbuf, v_line)
+#else
+      GET_MSB_TILE(atbuf, v_line)
+#endif
+#ifdef ALIGN_LONG
+      WRITE_LONG(dst, src[0] | atex);
+      dst++;
+      WRITE_LONG(dst, src[1] | atex);
+      dst++;
+#else
+      *dst++ = (src[0] | atex);
+      *dst++ = (src[1] | atex);
+#endif
+
+#ifdef LSB_FIRST
+      v_line = (line + v_offset + vs[column]) & pf_row_mask;
+#else
+      v_line = (line + v_offset + (vs[column] >> 16)) & pf_row_mask;
+#endif
+
+      nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+      v_line = (v_line & 7) << 3;
+      atbuf = nt[index & pf_col_mask];
+
+#ifdef LSB_FIRST
+      GET_MSB_TILE(atbuf, v_line)
+#else
+      GET_LSB_TILE(atbuf, v_line)
+#endif
+#ifdef ALIGN_LONG
+      WRITE_LONG(dst, src[0] | atex);
+      dst++;
+      WRITE_LONG(dst, src[1] | atex);
+      dst++;
+#else
+      *dst++ = (src[0] | atex);
+      *dst++ = (src[1] | atex);
+#endif
+    }
+
+    /* Window width */
+    start = clip[1].left;
+    end   = clip[1].right;
+  }
+  else
+  {
+    /* Window width */
+    start = 0;
+    end   = width;
+  }
+
+  /* Window Plane */
+  if (w)
+  {
+    /* Background line buffer */
+    dst = (uint32 *)&linebuf[0][0x20 + (start << 4)];
+
+    /* Window name table */
+    nt = (uint32 *)&vram[ntwb | ((line >> 3) << (6 + (reg[12] & 1)))];
+
+    /* Pattern row index */
+    v_line = (line & 7) << 3;
+
+    for(column = start; column < end; column++)
+    {
+      atbuf = nt[column];
+      DRAW_COLUMN(atbuf, v_line)
+    }
+  }
+
+  /* Plane B horizontal scroll */
+#ifdef LSB_FIRST
+  shift = (xscroll >> 16) & 0x0F;
+  index = pf_col_mask + 1 - ((xscroll >> 20) & pf_col_mask);
+#else
+  shift = (xscroll & 0x0F);
+  index = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
+#endif
+
+  /* Background line buffer */
+  lb = &linebuf[0][0x20];
+
+  if(shift)
+  {
+    /* Left-most column is partially shown */
+    lb -= (0x10 - shift);
+
+    /* Plane B vertical scroll */
+    v_line = (line + yscroll) & pf_row_mask;
+
+    /* Plane B name table */
+    nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+    /* Pattern row index */
+    v_line = (v_line & 7) << 3;
+
+    atbuf = nt[(index-1) & pf_col_mask];
+    DRAW_BG_COLUMN(atbuf, v_line, xscroll, yscroll)
+  }
+
+  for(column = 0; column < width; column++, index++)
+  {
+    /* Plane B vertical scroll */
+#ifdef LSB_FIRST
+    v_line = (line + (vs[column] >> 16)) & pf_row_mask;
+    next_v_line = (line + (vs[column + 1] >> 16)) & pf_row_mask;
+#else
+    v_line = (line + vs[column]) & pf_row_mask;
+    next_v_line = (line + vs[column + 1]) & pf_row_mask;
+#endif
+
+    if (column != width - 1)
+    {
+      v_offset = ((int)next_v_line - (int)v_line) / 2;
+      v_offset = (abs(v_offset) >= config.enhanced_vscroll_limit) ? 0 : v_offset;
+    }
+    
+    /* Plane B name table */
+    nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+
+    /* Pattern row index */
+    v_line = (v_line & 7) << 3;
+
+    atbuf = nt[index & pf_col_mask];
+#ifdef ALIGN_LONG
+#ifdef LSB_FIRST
+  GET_LSB_TILE(atbuf, v_line)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+
+  v_line = (line + v_offset + (vs[column] >> 16)) & pf_row_mask;
+  nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+  v_line = (v_line & 7) << 3;
+  atbuf = nt[index & pf_col_mask];
+  
+  GET_MSB_TILE(atbuf, v_line)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+#else
+  GET_MSB_TILE(atbuf, v_line)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+
+  v_line = (line + vs[column]) & pf_row_mask;
+  nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+  v_line = (v_line & 7) << 3;
+  atbuf = nt[index & pf_col_mask];
+ 
+  GET_LSB_TILE(atbuf, v_line)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = READ_LONG((uint32 *)lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+#endif
+#else /* NOT ALIGNED */
+#ifdef LSB_FIRST
+  GET_LSB_TILE(atbuf, v_line)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+
+  v_line = (line + v_offset + (vs[column] >> 16)) & pf_row_mask;
+  nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+  v_line = (v_line & 7) << 3;
+  atbuf = nt[index & pf_col_mask];
+
+  GET_MSB_TILE(atbuf, v_line)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+#else
+  GET_MSB_TILE(atbuf, v_line)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+
+  v_line = (line + vs[column]) & pf_row_mask;
+  nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & 0x1FC0)];
+  v_line = (v_line & 7) << 3;
+  atbuf = nt[index & pf_col_mask];
+
+  GET_LSB_TILE(atbuf, v_line)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[0] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+  xscroll = *(uint32 *)(lb);
+  yscroll = (src[1] | atex);
+  DRAW_BG_TILE(xscroll, yscroll)
+#endif
+#endif /* ALIGN_LONG */
+  }
+}
+
 void render_bg_m5_im2(int line)
 {
   int column, start, end;
@@ -4125,7 +4755,7 @@ void render_line(int line)
     /* Left-most column blanking */
     if (reg[0] & 0x20)
     {
-      if (system_hw > SYSTEM_SGII)
+      if (system_hw >= SYSTEM_MARKIII)
       {
         memset(&linebuf[0][0x20], 0x40, 8);
       }

genplusgx_source/vdp_render.h

@@ -6,6 +6,7 @@
  *
  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003  Charles Mac Donald (original code)
  *  Copyright (C) 2007-2016  Eke-Eke (Genesis Plus GX)
+ *  Copyright (C) 2022  AlexKiri (enhanced vscroll mode rendering function)
  *
  *  Redistribution and use of this code or any derivative works are permitted
  *  provided that the following conditions are met:
@@ -118,6 +119,7 @@ extern void render_bg_inv(int line);
 extern void render_bg_m4(int line);
 extern void render_bg_m5(int line);
 extern void render_bg_m5_vs(int line);
+extern void render_bg_m5_vs_enhanced(int line);
 extern void render_bg_m5_im2(int line);
 extern void render_bg_m5_im2_vs(int line);
 extern void render_obj_tms(int line);

genplusgx_source/z80/z80.c

@@ -210,6 +210,7 @@ UINT32 z80_cycle_ratio;
 #endif
 
 Z80_Regs Z80;
+UINT8 z80_last_fetch;
 
 unsigned char *z80_readmap[64];
 unsigned char *z80_writemap[64];
@@ -660,7 +661,8 @@ INLINE UINT8 ROP(void)
 {
   unsigned pc = PCD;
   PC++;
-  return cpu_readop(pc);
+  z80_last_fetch = cpu_readop(pc);
+  return z80_last_fetch;
 }
 
 /****************************************************************

genplusgx_source/z80/z80.h

@@ -50,6 +50,7 @@ typedef struct
 
 
 extern Z80_Regs Z80;
+extern UINT8 z80_last_fetch;
 
 #ifdef Z80_OVERCLOCK_SHIFT
 extern UINT32 z80_cycle_ratio;

osd.h

@@ -1,48 +1,43 @@
-#ifndef _OSD_H
-#define _OSD_H
+#ifndef _OSD_H_
+#define _OSD_H_
 
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include "scrc32.h"
 
 #define MAX_INPUTS 8
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef M_PI
-#define M_PI 3.1415926535897932385
-#endif
-
 #define CHEATS_UPDATE() ROMCheatUpdate()
 
-typedef struct 
+void osd_input_update(void);
+int load_archive(char*, unsigned char*, int, char *);
+extern void ROMCheatUpdate(void);
+
+typedef struct
 {
-    int8 device;
-    uint8 port;
     uint8 padtype;
 } t_input_config;
 
-struct
+typedef struct
 {
-    char version[16];
     uint8 hq_fm;
     uint8 filter;
     uint8 hq_psg;
     uint8 ym2612;
     uint8 ym2413;
+    uint8 cd_latency;
 #ifdef HAVE_YM3438_CORE
     uint8 ym3438;
+#endif
+#ifdef HAVE_OPLL_CORE
+    uint8 opll;
 #endif
     uint8 mono;
     int16 psg_preamp;
     int16 fm_preamp;
-    int16 lp_range;
+    int16 cdda_volume;
+    int16 pcm_volume;
+    uint16 lp_range;
     int16 low_freq;
     int16 high_freq;
     int16 lg;
@@ -56,19 +51,25 @@ struct
     uint8 addr_error;
     uint8 bios;
     uint8 lock_on;
+    uint8 add_on;
     uint8 overscan;
-    uint8 gg_extra;
     uint8 ntsc;
     uint8 lcd;
+    uint8 gg_extra;
     uint8 render;
+    uint8 enhanced_vscroll;
+    uint8 enhanced_vscroll_limit;
     t_input_config input[MAX_INPUTS];
-} config;
+} t_config;
+
+extern t_config config;
 
 extern char GG_ROM[256];
 extern char AR_ROM[256];
 extern char SK_ROM[256];
 extern char SK_UPMEM[256];
 extern char GG_BIOS[256];
+extern char MD_BIOS[256];
 extern char CD_BIOS_EU[256];
 extern char CD_BIOS_US[256];
 extern char CD_BIOS_JP[256];
@@ -76,8 +77,4 @@ extern char MS_BIOS_US[256];
 extern char MS_BIOS_EU[256];
 extern char MS_BIOS_JP[256];
 
-void osd_input_update(void);
-int load_archive(char *filename, unsigned char *buffer, int maxsize, char *extension);
-extern void ROMCheatUpdate(void);
-
-#endif /* _OSD_H */
+#endif /* _OSD_H_ */

scrc32.c

@@ -1,7 +1,7 @@
 #ifndef _S_CRC32_H
 #define _S_CRC32_H
 
-static const unsigned long crc_table[256] = {
+static const unsigned int crc_table[256] = {
   0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
   0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
   0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
@@ -61,7 +61,7 @@ static const unsigned long crc_table[256] = {
 #define DO4_CRC32(buf) DO2_CRC32(buf); DO2_CRC32(buf);
 #define DO8_CRC32(buf) DO4_CRC32(buf); DO4_CRC32(buf);
 
-unsigned long crc32(unsigned long crc, const unsigned char *buf, unsigned int len)
+unsigned int crc32(unsigned int crc, const unsigned char *buf, unsigned int len)
 {
 	if (buf == 0) return 0L;
 	crc = crc ^ 0xffffffffL;

scrc32.h

@@ -1,6 +1,6 @@
 #ifndef _S_CRC32_H
 #define _S_CRC32_H
 
-unsigned long crc32(unsigned long crc, const unsigned char *buf, unsigned int len);
+unsigned int crc32(unsigned int crc, const unsigned char *buf, unsigned int len);
 
 #endif