C++ (Cpp) Genie_BIOSInstalled Examples

Example #1

File: nes.cpp Project: ao7hin/Mednafen-Core

static int StateAction(StateMem *sm, int load, int data_only)
{
 if(Genie_BIOSInstalled())
 {
  if(!data_only)
   MDFN_DispMessage(_("Cannot use states in GG Screen."));
  return(0);
 }

 if(!X6502_StateAction(sm, load, data_only))
  return(0);

 if(!MDFNPPU_StateAction(sm, load, data_only))
  return(0);

 if(!MDFNSND_StateAction(sm, load, data_only))
  return(0);

 if(!load || load >= 0x0500)
 {
  if(!NESINPUT_StateAction(sm, load, data_only))
   return(0);
 }

 if(GameInterface->StateAction)
 {
  if(!GameInterface->StateAction(sm, load, data_only))
   return(0);
 }

 return(1);
}

Example #2

File: nes.cpp Project: libretro/mednafen-git

static void InstallReadPatch(uint32 address, uint8 value, int compare)
{
 if(Genie_BIOSInstalled())
  return;

 address &= 0xFFFF;

 SetReadHandler(address, address, CheatReadFunc, 0);
}

Example #3

File: nes.cpp Project: libretro/mednafen-git

static void RemoveReadPatches(void)
{
 if(Genie_BIOSInstalled())
  return;

 for(uint32 A = 0; A <= 0xFFFF; A++)
 {
  SetReadHandler(A, A, NonCheatARead[A], 0);
 }
}

Example #4

File: nes.cpp Project: ao7hin/Mednafen-Core

void PowerNES(void) 
{
        MDFNMOV_AddCommand(MDFN_MSC_POWER);

        if(!MDFNGameInfo)
	 return;

	if(!Genie_BIOSInstalled())
 	 MDFNMP_RemoveReadPatches();

	MDFNMP_AddRAM(0x0800, 0x0000, RAM);

	// Genie_Power() will remove any cheat read patches, and then install the BIOS(and its read hooks)
        Genie_Power();

	// http://wiki.nesdev.com/w/index.php/CPU_power_up_state
	memset(RAM, 0xFF, 0x800);
	RAM[0x008] = 0xF7;
	RAM[0x009] = 0xEF;
	RAM[0x00A] = 0xDF;
	RAM[0x00F] = 0xBF;

        NESINPUT_Power();
        MDFNSND_Power();
        MDFNPPU_Power();

	/* Have the external game hardware "powered" after the internal NES stuff.  
	   Needed for the NSF code and VS System code.
	*/
	if(GameInterface->Power)
	 GameInterface->Power();

	if(NESIsVSUni)
         MDFN_VSUniPower();

	timestampbase = 0;
	X6502_Power();

        if(!Genie_BIOSInstalled())
         MDFNMP_InstallReadPatches();
}

Example #5

File: nes.cpp Project: libretro/mednafen-git

static void Emulate(EmulateSpecStruct *espec)
{
 int ssize;

#if 0
 static bool firstcat = true;

 MDFN_PixelFormat tmp_pf;

 tmp_pf.Rshift = 0;
 tmp_pf.Gshift = 0;
 tmp_pf.Bshift = 0;
 tmp_pf.Ashift = 8;

 tmp_pf.Rprec = 6;
 tmp_pf.Gprec = 6;
 tmp_pf.Bprec = 6;
 tmp_pf.Aprec = 0;

 tmp_pf.bpp = 8;
 tmp_pf.colorspace = MDFN_COLORSPACE_RGB;

 espec->surface->SetFormat(tmp_pf, false);
 espec->VideoFormatChanged = firstcat;
 firstcat = false;
#endif


 if(espec->VideoFormatChanged)
 {
  MDFN_InitPalette(NESIsVSUni ? MDFN_VSUniGetPaletteNum() : (bool)PAL, espec->CustomPalette, espec->CustomPaletteNumEntries);
  MDFNNES_SetPixelFormat(espec->surface->format);
 }

 if(espec->SoundFormatChanged)
  MDFNNES_SetSoundRate(espec->SoundRate);

 NESPPU_GetDisplayRect(&espec->DisplayRect);

 MDFN_UpdateInput();

 if(!Genie_BIOSInstalled())
  MDFNMP_ApplyPeriodicCheats();

 MDFNPPU_Loop(espec);

 ssize = FlushEmulateSound(espec->NeedSoundReverse, espec->SoundBuf, espec->SoundBufMaxSize);
 espec->NeedSoundReverse = 0;

 timestampbase += timestamp;
 espec->MasterCycles = timestamp;

 timestamp = 0;

 if(MDFNGameInfo->GameType == GMT_PLAYER)
  MDFNNES_DrawNSF(espec->surface, &espec->DisplayRect, espec->SoundBuf, ssize);

 espec->SoundBufSize = ssize;


 if(MDFNGameInfo->GameType != GMT_PLAYER)
 {
  if(NESIsVSUni)
   MDFN_VSUniDraw(espec->surface);
 }
}