113 lines
3.0 KiB
C
Executable File
113 lines
3.0 KiB
C
Executable File
/*****************************************************************************
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** $Source: /cygdrive/d/Private/_SVNROOT/bluemsx/blueMSX/Src/Memory/sramLoader.c,v $
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**
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** $Revision: 1.7 $
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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 "sramLoader.h"
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#include "Board.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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const char* sramCreateFilenameWithSuffix(const char* romFilename, char* suffix, char* ext)
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{
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static char SRAMfileName[512];
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char fileName[512];
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char* dst = fileName + 512;
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const char* src;
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*--dst = '\0';
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if (ext == NULL) {
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*--dst = 'm';
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*--dst = 'a';
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*--dst = 'r';
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*--dst = 's';
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*--dst = '.';
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}
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else {
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char* p = ext + strlen(ext);
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do {
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*--dst = *--p;
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} while (p != ext);
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}
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dst -= strlen(suffix);
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memcpy(dst, suffix, strlen(suffix));
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src = romFilename + strlen(romFilename);
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while (*src != '.' && src > romFilename) {
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src--;
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}
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src--;
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while (*src != '/' && *src != '\\' && src >= romFilename) {
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*--dst = *src--;
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}
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sprintf(SRAMfileName, "%s" DIR_SEPARATOR "%s", boardGetBaseDirectory(), dst);
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return SRAMfileName;
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}
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const char* sramCreateFilename(const char* romFilename) {
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return sramCreateFilenameWithSuffix(romFilename, "", NULL);
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}
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void sramLoad(const char* filename, UInt8* sram, int length, void* header, int headerLength) {
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FILE* file;
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file = fopen(filename, "rb");
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if (file != NULL) {
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if (headerLength > 0) {
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char* readHeader[256];
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fread(readHeader, 1, headerLength, file);
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if (memcmp(readHeader, header, headerLength)) {
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fclose(file);
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return;
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}
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}
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fread(sram, 1, length, file);
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fclose(file);
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}
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}
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void sramSave(const char* filename, UInt8* sram, int length, void* header, int headerLength) {
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FILE* file;
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file = fopen(filename, "wb");
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if (file != NULL) {
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if (headerLength > 0) {
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fwrite(header, 1, headerLength, file);
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}
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fwrite(sram, 1, length, file);
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fclose(file);
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}
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}
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