117 lines
3.3 KiB
C
Executable File
117 lines
3.3 KiB
C
Executable File
/*****************************************************************************
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** $Source: /cygdrive/d/Private/_SVNROOT/bluemsx/blueMSX/Src/Memory/romMapperForteII.c,v $
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**
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** $Revision: 1.2 $
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**
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** $Date: 2008-03-30 18:38:44 $
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**
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** More info: http://www.bluemsx.com
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**
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** Copyright (C) 2003-2006 Daniel Vik
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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******************************************************************************
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*/
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#include "romMapperForteII.h"
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#include "MediaDb.h"
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#include "SlotManager.h"
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#include "DeviceManager.h"
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#include "SaveState.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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typedef struct {
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int deviceHandle;
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int slot;
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int sslot;
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int startPage;
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UInt8 romData[0x10000];
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} RomMapperForteII;
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static void destroy(RomMapperForteII* rm)
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{
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slotUnregister(rm->slot, rm->sslot, rm->startPage);
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deviceManagerUnregister(rm->deviceHandle);
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free(rm);
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}
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static UInt16 eeprom2cpu16(UInt16 v)
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{
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return (((v >> 10) & 1) << 0) |
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(((v >> 0) & 1) << 1) |
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(((v >> 1) & 1) << 2) |
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(((v >> 2) & 1) << 3) |
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(((v >> 3) & 1) << 4) |
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(((v >> 4) & 1) << 5) |
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(((v >> 5) & 1) << 6) |
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(((v >> 6) & 1) << 7) |
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(((v >> 7) & 1) << 8) |
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(((v >> 12) & 1) << 9) |
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(((v >> 15) & 1) << 10) |
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(((v >> 14) & 1) << 11) |
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(((v >> 13) & 1) << 12) |
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(((v >> 8) & 1) << 13) |
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(((v >> 9) & 1) << 14) |
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(((v >> 11) & 1) << 15);
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}
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static UInt8 eeprom2cpu8(UInt8 v)
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{
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return (((v >> 1) & 1) << 0) |
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(((v >> 2) & 1) << 1) |
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(((v >> 4) & 1) << 2) |
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(((v >> 0) & 1) << 3) |
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(((v >> 7) & 1) << 4) |
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(((v >> 6) & 1) << 5) |
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(((v >> 5) & 1) << 6) |
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(((v >> 3) & 1) << 7);
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}
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int romMapperForteIICreate(const char* filename, UInt8* romData,
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int size, int slot, int sslot, int startPage)
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{
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DeviceCallbacks callbacks = { destroy, NULL, NULL, NULL };
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RomMapperForteII* rm;
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int i;
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if (size > 0x10000) {
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return size = 0x10000;
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}
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rm = malloc(sizeof(RomMapperForteII));
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memset(rm->romData, 0xff, 0x10000);
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for (i = 0; i < size; i++) {
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rm->romData[eeprom2cpu16(i)] = eeprom2cpu8(romData[i]);
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}
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rm->slot = slot;
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rm->sslot = sslot;
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rm->startPage = startPage;
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rm->deviceHandle = deviceManagerRegister(ROM_FORTEII, &callbacks, rm);
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slotRegister(slot, sslot, startPage, 8, NULL, NULL, NULL, destroy, rm);
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for (i = 0; i < 8; i++) {
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slotMapPage(slot, sslot, startPage + i, rm->romData + 0x2000 * i, 1, 0);
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}
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return 1;
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}
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