Exemple #1
0
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();
}
Exemple #2
0
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);
}