CRom::CRom(const char *romfile)
{
mWriteEnable=FALSE;
Reset();
// Initialise ROM
for(int loop=0;loop<ROM_SIZE;loop++) mRomData[loop]=DEFAULT_ROM_CONTENTS;
// Load up the file
MDFNFILE BIOSFile;
if(!BIOSFile.Open(romfile, NULL, _("Lynx Boot ROM")))
{
throw MDFN_Error(0, ""); // FIXME: (make MDFNFILE throw exceptions instead of calling MDFN_PrintError())
}
if(BIOSFile.Size() < 512)
{
throw MDFN_Error(0, _("The Lynx Boot ROM Image is an incorrect size."));
}
memcpy(mRomData, BIOSFile.Data(), 512);
BIOSFile.Close();
}
int HuCLoadCD(const char *bios_path)
{
static const FileExtensionSpecStruct KnownBIOSExtensions[] =
{
{ ".pce", gettext_noop("PC Engine ROM Image") },
{ ".bin", gettext_noop("PC Engine ROM Image") },
{ ".bios", gettext_noop("BIOS Image") },
{ NULL, NULL }
};
MDFNFILE fp;
if(!fp.Open(bios_path, KnownBIOSExtensions, _("CD BIOS")))
{
return(0);
}
memset(ROMSpace, 0xFF, 262144);
memcpy(ROMSpace, fp.Data() + (fp.Size() & 512), ((fp.Size() & ~512) > 262144) ? 262144 : (fp.Size() &~ 512) );
fp.Close();
PCE_IsCD = 1;
PCE_InitCD();
md5_context md5;
md5.starts();
// md5_update(&md5, HuCROM, 262144);
#if 0
int32 track = CDIF_GetFirstTrack();
int32 last_track = CDIF_GetLastTrack();
bool DTFound = 0;
for(; track <= last_track; track++)
{
CDIF_Track_Format format;
if(CDIF_GetTrackFormat(track, format) && format == CDIF_FORMAT_MODE1)
{
DTFound = 1;
break;
}
}
if(DTFound) // Only add the MD5 hash if we were able to find a data track.
{
uint32 start_sector = CDIF_GetTrackStartPositionLBA(track);
uint8 sector_buffer[2048];
for(int x = 0; x < 128; x++)
{
memset(sector_buffer, 0, 2048);
CDIF_ReadSector(sector_buffer, NULL, start_sector + x, 1);
md5.update(sector_buffer, 2048);
}
}
md5.finish(MDFNGameInfo->MD5);
MDFN_printf(_("CD MD5(first 256KiB): 0x%s\n"), md5_context::asciistr(MDFNGameInfo->MD5, 0).c_str());
#endif
MDFN_printf(_("Arcade Card Emulation: %s\n"), PCE_ACEnabled ? _("Enabled") : _("Disabled"));
for(int x = 0; x < 0x40; x++)
{
HuCPUFastMap[x] = ROMSpace;
PCERead[x] = HuCRead;
}
for(int x = 0x68; x < 0x88; x++)
{
HuCPUFastMap[x] = ROMSpace;
PCERead[x] = HuCRead;
PCEWrite[x] = HuCRAMWrite;
}
PCEWrite[0x80] = HuCRAMWriteCDSpecial; // Hyper Dyne Special hack
MDFNMP_AddRAM(262144, 0x68 * 8192, ROMSpace + 0x68 * 8192);
if(PCE_ACEnabled)
{
arcade_card = new ArcadeCard();
if(!arcade_card)
{
MDFN_PrintError(_("Error creating %s object"), "ArcadeCard");
//Cleanup(); // TODO
return(0);
}
for(int x = 0x40; x < 0x44; x++)
{
HuCPUFastMap[x] = NULL;
PCERead[x] = ACPhysRead;
PCEWrite[x] = ACPhysWrite;
}
}
gzFile srp;
memset(SaveRAM, 0x00, 2048);
memcpy(SaveRAM, BRAM_Init_String, 8); // So users don't have to manually intialize the file cabinet
// in the CD BIOS screen.
if((srp = gzopen(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav").c_str(), "rb")))
{
gzread(srp, SaveRAM, 2048);
gzclose(srp);
}
PCEWrite[0xF7] = SaveRAMWrite;
PCERead[0xF7] = SaveRAMRead;
MDFNMP_AddRAM(2048, 0xF7 * 8192, SaveRAM);
return(1);
}