int emu_SaveLoadSRAM(int load)
{
int ret = 0;
static char saveFname[512];
romfname_ext(saveFname, NULL, (PicoMCD & 1) ? ".brm" : ".srm");
if (load && !try_ropen_file(saveFname)) return 0;
FILE *sramFile;
int sram_size;
unsigned char *sram_data;
int truncate = 1;
if (PicoMCD & 1) {
if (PicoOpt & PicoOpt_enable_cd_ramcart) { // MCD RAM cart?
sram_size = 0x12000;
sram_data = SRam.data;
if (sram_data)
memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
} else {
sram_size = 0x2000;
sram_data = Pico_mcd->bram;
truncate = 0; // the .brm may contain RAM cart data after normal brm
}
} else {
sram_size = SRam.end - SRam.start + 1;
if(Pico.m.sram_reg & 4) sram_size=0x2000;
sram_data = SRam.data;
}
if (!sram_data) return 0; // SRam forcefully disabled for this game
if (load) {
sramFile = fopen(saveFname, "rb");
if(!sramFile) return -1;
fread(sram_data, 1, sram_size, sramFile);
fclose(sramFile);
if ((PicoMCD & 1) && (PicoOpt & PicoOpt_enable_cd_ramcart))
memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
} else {
// sram save needs some special processing
// see if we have anything to save
for (; sram_size > 0; sram_size--)
if (sram_data[sram_size - 1]) break;
if (sram_size) {
sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
if (!sramFile) return -1;
ret = fwrite(sram_data, 1, sram_size, sramFile);
ret = (ret != sram_size) ? -1 : 0;
fclose(sramFile);
}
}
return ret;
}
char *emu_GetSaveFName(int load, int is_sram, int slot)
{
static char saveFname[512];
char ext[16];
if (is_sram)
{
romfname_ext(saveFname, (PicoMCD&1) ? brmPath : srmPath, (PicoMCD&1) ? ".brm" : ".srm");
if (load) {
if (try_ropen_file(saveFname)) return saveFname;
// try in current dir..
romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");
if (try_ropen_file(saveFname)) return saveFname;
return NULL; // give up
}
}
else
{
ext[0] = 0;
if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");
romfname_ext(saveFname, mdsPath, ext);
if (load) {
if (try_ropen_file(saveFname)) return saveFname;
romfname_ext(saveFname, NULL, ext);
if (try_ropen_file(saveFname)) return saveFname;
if (currentConfig.EmuOpt & 8) {
ext[0] = 0;
if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
strcat(ext, ".mds");
romfname_ext(saveFname, mdsPath, ext);
if (try_ropen_file(saveFname)) return saveFname;
romfname_ext(saveFname, NULL, ext);
if (try_ropen_file(saveFname)) return saveFname;
}
return NULL;
}
}
return saveFname;
}