C++ --> C99

1 files changed, 0 insertions, 541 deletions

diff --git a/src/cpuexec.cpp b/src/cpuexec.cpp
deleted file mode 100644
index 3cd25c3..0000000
--- a/src/cpuexec.cpp
+++ /dev/null
@@ -1,541 +0,0 @@
-/*

- * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.

- *

- * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and

- *                           Jerremy Koot (jkoot@snes9x.com)

- *

- * Super FX C emulator code 

- * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and

- *                           Gary Henderson.

- * Super FX 	assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.

- *

- * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.

- * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.

- * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).

- *

- * DOS port code contains the works of other authors. See headers in

- * individual files.

- *

- * Snes9x homepage: http://www.snes9x.com

- *

- * Permission to use, copy, modify and distribute Snes9x in both binary and

- * source form, for non-commercial purposes, is hereby granted without fee,

- * providing that this license information and copyright notice appear with

- * all copies and any derived work.

- *

- * This software is provided 'as-is', without any express or implied

- * warranty. In no event shall the authors be held liable for any damages

- * arising from the use of this software.

- *

- * Snes9x is freeware for PERSONAL USE only. Commercial users should

- * seek permission of the copyright holders first. Commercial use includes

- * charging money for Snes9x or software derived from Snes9x.

- *

- * The copyright holders request that bug fixes and improvements to the code

- * should be forwarded to them so everyone can benefit from the modifications

- * in future versions.

- *

- * Super NES and Super Nintendo Entertainment System are trademarks of

- * Nintendo Co., Limited and its subsidiary companies.

- */

- 

-

- 

-#include "snes9x.h"

-

-#include "memmap.h"

-#include "cpuops.h"

-#include "ppu.h"

-#include "cpuexec.h"

-#include "snapshot.h"

-#include "gfx.h"

-#include "missing.h"

-#include "apu.h"

-#include "dma.h"

-#include "fxemu.h"

-#ifdef USE_SA1

-#include "sa1.h"

-#endif

-

-#include "os9x_asm_cpu.h"

-

-

-void (*S9x_Current_HBlank_Event)();

-

-

-#ifndef ASMCPU

-	#ifdef USE_SA1

-void S9xMainLoop_SA1_APU (void)

-{

-	for (;;)

-    {

-      asm_APU_EXECUTE(1);

-      if (CPU.Flags)

-	{

-	  if (CPU.Flags & NMI_FLAG)

-	    {

-	      if (--CPU.NMICycleCount == 0)

-		{

-		  CPU.Flags &= ~NMI_FLAG;

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-						++CPU.PC;

-		    }

-		  S9xOpcode_NMI ();

-		}

-	    }

-

-	  if (CPU.Flags & IRQ_PENDING_FLAG)

-	    {

-	      if (CPU.IRQCycleCount == 0)

-		{

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-		      CPU.PC++;

-		    }

-		  if (CPU.IRQActive && !Settings.DisableIRQ)

-		    {

-		      if (!CheckFlag (IRQ))

-			S9xOpcode_IRQ ();

-		    }

-		  else

-		    CPU.Flags &= ~IRQ_PENDING_FLAG;

-		}

-	      else

-		CPU.IRQCycleCount--;

-	    }

-	  if (CPU.Flags & SCAN_KEYS_FLAG)

-	    break;

-	}

-

-#ifdef CPU_SHUTDOWN

-      CPU.PCAtOpcodeStart = CPU.PC;

-#endif

-#ifdef VAR_CYCLES

-		CPU.Cycles += CPU.MemSpeed;

-#else

-		CPU.Cycles += ICPU.Speed [*CPU.PC];

-#endif

-      (*ICPU.S9xOpcodes[*CPU.PC++].S9xOpcode) ();

-

-

-      //S9xUpdateAPUTimer ();

-

-

-      if (SA1.Executing)

-		S9xSA1MainLoop ();

-      DO_HBLANK_CHECK ();

-

-    }

-}

-

-void S9xMainLoop_SA1_NoAPU (void)

-{

-	for (;;)

-    {

-      if (CPU.Flags)

-	{

-	  if (CPU.Flags & NMI_FLAG)

-	    {

-	      if (--CPU.NMICycleCount == 0)

-		{

-		  CPU.Flags &= ~NMI_FLAG;

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-						++CPU.PC;

-		    }

-		  S9xOpcode_NMI ();

-		}

-	    }

-

-	  if (CPU.Flags & IRQ_PENDING_FLAG)

-	    {

-	      if (CPU.IRQCycleCount == 0)

-		{

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-		      CPU.PC++;

-		    }

-		  if (CPU.IRQActive && !Settings.DisableIRQ)

-		    {

-		      if (!CheckFlag (IRQ))

-			S9xOpcode_IRQ ();

-		    }

-		  else

-		    CPU.Flags &= ~IRQ_PENDING_FLAG;

-		}

-	      else

-		CPU.IRQCycleCount--;

-	    }

-	  if (CPU.Flags & SCAN_KEYS_FLAG)

-	    break;

-	}

-

-#ifdef CPU_SHUTDOWN

-      CPU.PCAtOpcodeStart = CPU.PC;

-#endif

-#ifdef VAR_CYCLES

-		CPU.Cycles += CPU.MemSpeed;

-#else

-		CPU.Cycles += ICPU.Speed [*CPU.PC];

-#endif

-      (*ICPU.S9xOpcodes[*CPU.PC++].S9xOpcode) ();

-

-

-      //S9xUpdateAPUTimer ();

-

-

-      if (SA1.Executing)

-		S9xSA1MainLoop ();

-      DO_HBLANK_CHECK ();

-

-    }

-}

-	// USE_SA1

-	#endif

-

-void S9xMainLoop_NoSA1_APU (void)

-{

-	for (;;)

-    {

-      asm_APU_EXECUTE(1);

-      if (CPU.Flags)

-	{

-	  if (CPU.Flags & NMI_FLAG)

-	    {

-	      if (--CPU.NMICycleCount == 0)

-		{

-		  CPU.Flags &= ~NMI_FLAG;

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-						++CPU.PC;

-		    }

-		  S9xOpcode_NMI ();

-		}

-	    }

-

-	  if (CPU.Flags & IRQ_PENDING_FLAG)

-	    {	

-	      if (CPU.IRQCycleCount == 0)

-		{

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-		      CPU.PC++;

-		    }

-		  if (CPU.IRQActive && !Settings.DisableIRQ)

-		    {

-		      if (!CheckFlag (IRQ))

-			S9xOpcode_IRQ ();

-		    }

-		  else

-		    CPU.Flags &= ~IRQ_PENDING_FLAG;

-		}

-	      else

-		CPU.IRQCycleCount--;

-	    }

-	  if (CPU.Flags & SCAN_KEYS_FLAG)

-	    break;

-	}

-

-#ifdef CPU_SHUTDOWN

-      CPU.PCAtOpcodeStart = CPU.PC;

-#endif

-#ifdef VAR_CYCLES

-		CPU.Cycles += CPU.MemSpeed;

-#else

-		CPU.Cycles += ICPU.Speed [*CPU.PC];

-#endif

-      (*ICPU.S9xOpcodes[*CPU.PC++].S9xOpcode) ();

-

-

-      //S9xUpdateAPUTimer ();

-

-      DO_HBLANK_CHECK ();

-    }

-}

-

-void S9xMainLoop_NoSA1_NoAPU (void)

-{

-	for (;;)

-    {

-      if (CPU.Flags)

-	{

-	  if (CPU.Flags & NMI_FLAG)

-	    {

-	      if (--CPU.NMICycleCount == 0)

-		{

-		  CPU.Flags &= ~NMI_FLAG;

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-						++CPU.PC;

-		    }

-		  S9xOpcode_NMI ();

-		}

-	    }

-

-	  if (CPU.Flags & IRQ_PENDING_FLAG)

-	    {

-	      if (CPU.IRQCycleCount == 0)

-		{

-		  if (CPU.WaitingForInterrupt)

-		    {

-		      CPU.WaitingForInterrupt = FALSE;

-		      CPU.PC++;

-		    }

-		  if (CPU.IRQActive && !Settings.DisableIRQ)

-		    {

-		      if (!CheckFlag (IRQ))

-			S9xOpcode_IRQ ();

-		    }

-		  else

-		    CPU.Flags &= ~IRQ_PENDING_FLAG;

-		}

-	      else

-		CPU.IRQCycleCount--;

-	    }

-	  if (CPU.Flags & SCAN_KEYS_FLAG)

-	    break;

-	}

-

-#ifdef CPU_SHUTDOWN

-      CPU.PCAtOpcodeStart = CPU.PC;

-#endif

-#ifdef VAR_CYCLES

-		CPU.Cycles += CPU.MemSpeed;

-#else

-		CPU.Cycles += ICPU.Speed [*CPU.PC];

-#endif

-      (*ICPU.S9xOpcodes[*CPU.PC++].S9xOpcode) ();

-

-

-      //S9xUpdateAPUTimer ();

-

-

-      DO_HBLANK_CHECK ();

-

-    }

-}

-#endif 

-

-

-void

-S9xMainLoop (void)

-{

-#ifndef ASMCPU

-	if (Settings.APUEnabled == 1) {

-	#ifdef USE_SA1

-		if (Settings.SA1) S9xMainLoop_SA1_APU();

-		else

-	#endif 

-		  S9xMainLoop_NoSA1_APU();

-	} else {

-	#ifdef USE_SA1

-		if (Settings.SA1) S9xMainLoop_SA1_NoAPU();

-		else S9xMainLoop_NoSA1_NoAPU();

-	#endif 

-

-	}

-#else  

-  if (Settings.asmspc700) asmMainLoop_spcAsm(&CPU);

-  else asmMainLoop_spcC(&CPU);		

-#endif

-  Registers.PC = CPU.PC - CPU.PCBase;

-

-#ifndef ASMCPU

-  S9xPackStatus ();

-#endif

-

-  S9xAPUPackStatus ();

-

-

-  //if (CPU.Flags & SCAN_KEYS_FLAG)

-   // {

-      CPU.Flags &= ~SCAN_KEYS_FLAG;

-    //}

-    

-    if (CPU.BRKTriggered && Settings.SuperFX && !CPU.TriedInterleavedMode2)

-    {

-	CPU.TriedInterleavedMode2 = TRUE;

-	CPU.BRKTriggered = FALSE;

-	S9xDeinterleaveMode2 ();

-    }

-}

-

-void S9xSetIRQ (uint32 source)

-{

-    CPU.IRQActive |= source;

-    CPU.Flags |= IRQ_PENDING_FLAG;

-    CPU.IRQCycleCount = 3;

-    if (CPU.WaitingForInterrupt)

-    {

-	// Force IRQ to trigger immediately after WAI - 

-	// Final Fantasy Mystic Quest crashes without this.

-	CPU.IRQCycleCount = 0;

-	CPU.WaitingForInterrupt = FALSE;

-	CPU.PC++;

-    }

-}

-

-void S9xClearIRQ (uint32 source)

-{

-    CLEAR_IRQ_SOURCE (source);

-}

-

-void S9xDoHBlankProcessing ()

-{

-#ifdef CPU_SHUTDOWN

-    CPU.WaitCounter++;

-#endif

-

-    switch (CPU.WhichEvent)

-    {

-    case HBLANK_START_EVENT:

-		if (IPPU.HDMA && CPU.V_Counter <= PPU.ScreenHeight)

-			IPPU.HDMA = S9xDoHDMA (IPPU.HDMA);

-		break;

-

-    case HBLANK_END_EVENT:

-		asm_APU_EXECUTE(3); // notaz: run spc700 in sound 'speed hack' mode

-		if(Settings.SuperFX)

-			S9xSuperFXExec ();

-

-		CPU.Cycles -= Settings.H_Max;

-		if (/*IAPU.APUExecuting*/CPU.APU_APUExecuting)

-			CPU.APU_Cycles -= Settings.H_Max;

-		else

-			CPU.APU_Cycles = 0;

-

-		CPU.NextEvent = -1;

-		ICPU.Scanline++;

-

-	if (++CPU.V_Counter >= (Settings.PAL ? SNES_MAX_PAL_VCOUNTER : SNES_MAX_NTSC_VCOUNTER))

-		{

-		CPU.V_Counter = 0;

-			CPU.NMIActive = FALSE;

-			ICPU.Frame++;

-			PPU.HVBeamCounterLatched = 0;

-			CPU.Flags |= SCAN_KEYS_FLAG;

-			S9xStartHDMA ();

-		}

-

-		if (PPU.VTimerEnabled && !PPU.HTimerEnabled &&

-			CPU.V_Counter == PPU.IRQVBeamPos)

-		{

-			S9xSetIRQ (PPU_V_BEAM_IRQ_SOURCE);

-		}

-

-		if (CPU.V_Counter == PPU.ScreenHeight + FIRST_VISIBLE_LINE)

-		{

-			// Start of V-blank

-			S9xEndScreenRefresh ();

-			IPPU.HDMA = 0;

-			// Bits 7 and 6 of $4212 are computed when read in S9xGetPPU.

-			missing.dma_this_frame = 0;

-			IPPU.MaxBrightness = PPU.Brightness;

-			PPU.ForcedBlanking = (Memory.FillRAM [0x2100] >> 7) & 1;

-

-		if(!PPU.ForcedBlanking){

-			PPU.OAMAddr = PPU.SavedOAMAddr;

-			PPU.OAMFlip = 0;

-			PPU.FirstSprite = 0;

-			if(PPU.OAMPriorityRotation)

-				PPU.FirstSprite = PPU.OAMAddr>>1;

-		}

-

-			Memory.FillRAM[0x4210] = 0x80;

-			if (Memory.FillRAM[0x4200] & 0x80)

-			{

-			CPU.NMIActive = TRUE;

-			CPU.Flags |= NMI_FLAG;

-			CPU.NMICycleCount = CPU.NMITriggerPoint;

-			}

-

-			}

-

-		if (CPU.V_Counter == PPU.ScreenHeight + 3)

-			S9xUpdateJoypads ();

-

-		if (CPU.V_Counter == FIRST_VISIBLE_LINE)

-		{

-			Memory.FillRAM[0x4210] = 0;

-			CPU.Flags &= ~NMI_FLAG;

-			S9xStartScreenRefresh ();

-		}

-		if (CPU.V_Counter >= FIRST_VISIBLE_LINE &&

-			CPU.V_Counter < PPU.ScreenHeight + FIRST_VISIBLE_LINE)

-		{

-			RenderLine (CPU.V_Counter - FIRST_VISIBLE_LINE);

-		}

-		// Use TimerErrorCounter to skip update of SPC700 timers once

-		// every 128 updates. Needed because this section of code is called

-		// once every emulated 63.5 microseconds, which coresponds to

-		// 15.750KHz, but the SPC700 timers need to be updated at multiples

-		// of 8KHz, hence the error correction.

-	//	IAPU.TimerErrorCounter++;

-	//	if (IAPU.TimerErrorCounter >= )

-	//	    IAPU.TimerErrorCounter = 0;

-	//	else

-		{

-			if (APU.TimerEnabled [2])

-			{

-			APU.Timer [2] += 4;

-			while (APU.Timer [2] >= APU.TimerTarget [2])

-			{

-				IAPU.RAM [0xff] = (IAPU.RAM [0xff] + 1) & 0xf;

-				APU.Timer [2] -= APU.TimerTarget [2];

-#ifdef SPC700_SHUTDOWN		

-				IAPU.WaitCounter++;

-				/*IAPU.APUExecuting*/CPU.APU_APUExecuting= TRUE;

-#endif		

-			}

-			}

-			if (CPU.V_Counter & 1)

-			{

-			if (APU.TimerEnabled [0])

-			{

-				APU.Timer [0]++;

-				if (APU.Timer [0] >= APU.TimerTarget [0])

-				{

-				IAPU.RAM [0xfd] = (IAPU.RAM [0xfd] + 1) & 0xf;

-				APU.Timer [0] = 0;

-#ifdef SPC700_SHUTDOWN		

-				IAPU.WaitCounter++;

-				/*IAPU.APUExecuting*/CPU.APU_APUExecuting = TRUE;

-#endif		    

-				}

-			}

-			if (APU.TimerEnabled [1])

-			{

-				APU.Timer [1]++;

-				if (APU.Timer [1] >= APU.TimerTarget [1])

-				{

-				IAPU.RAM [0xfe] = (IAPU.RAM [0xfe] + 1) & 0xf;

-				APU.Timer [1] = 0;

-#ifdef SPC700_SHUTDOWN		

-				IAPU.WaitCounter++;

-				/*IAPU.APUExecuting*/CPU.APU_APUExecuting = TRUE;

-#endif		    

-				}

-			}

-			}

-		}

-		break;

-	case HTIMER_BEFORE_EVENT:

-	case HTIMER_AFTER_EVENT:

-		if (PPU.HTimerEnabled &&

-			(!PPU.VTimerEnabled || CPU.V_Counter == PPU.IRQVBeamPos))

-		{

-			S9xSetIRQ (PPU_H_BEAM_IRQ_SOURCE);

-		}

-		break;

-    }

-    S9xReschedule ();

-}

-