aboutsummaryrefslogtreecommitdiff
path: root/source/cpu.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/cpu.c')
-rw-r--r--source/cpu.c240
1 files changed, 120 insertions, 120 deletions
diff --git a/source/cpu.c b/source/cpu.c
index 51adb61..977ac77 100644
--- a/source/cpu.c
+++ b/source/cpu.c
@@ -1,6 +1,6 @@
/*******************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
+
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
Jerremy Koot (jkoot@snes9x.com)
@@ -43,46 +43,46 @@
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive and John Weidman
-
+
S-RTC C emulator code
(c) Copyright 2001 John Weidman
-
+
ST010 C++ emulator code
(c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
+ Super FX x86 assembler emulator code
+ (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
- Super FX C emulator code
+ Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+ (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+
-
Specific ports 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.
*******************************************************************************/
@@ -107,131 +107,131 @@
extern struct FxInit_s SuperFX;
-void S9xResetSuperFX ()
+void S9xResetSuperFX()
{
- SuperFX.vFlags = 0; //FX_FLAG_ROM_BUFFER;// | FX_FLAG_ADDRESS_CHECKING;
- FxReset (&SuperFX);
+ SuperFX.vFlags = 0; //FX_FLAG_ROM_BUFFER;// | FX_FLAG_ADDRESS_CHECKING;
+ FxReset(&SuperFX);
}
#endif
-void S9xResetCPU ()
+void S9xResetCPU()
{
- ICPU.Registers.PB = 0;
- ICPU.Registers.PC = S9xGetWord (0xFFFC);
- ICPU.Registers.D.W = 0;
- ICPU.Registers.DB = 0;
- ICPU.Registers.SH = 1;
- ICPU.Registers.SL = 0xFF;
- ICPU.Registers.XH = 0;
- ICPU.Registers.YH = 0;
- ICPU.Registers.P.W = 0;
-
- ICPU.ShiftedPB = 0;
- ICPU.ShiftedDB = 0;
- SetFlags (MemoryFlag | IndexFlag | IRQ | Emulation);
- ClearFlags (Decimal);
-
- CPU.Flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
- CPU.BranchSkip = FALSE;
- CPU.NMIActive = FALSE;
- CPU.IRQActive = FALSE;
- CPU.WaitingForInterrupt = FALSE;
- CPU.InDMA = FALSE;
- CPU.WhichEvent = HBLANK_START_EVENT;
- CPU.PC = NULL;
- CPU.PCBase = NULL;
- CPU.PCAtOpcodeStart = NULL;
- CPU.WaitAddress = NULL;
- CPU.WaitCounter = 0;
- CPU.Cycles = 0;
- CPU.NextEvent = Settings.HBlankStart;
- CPU.V_Counter = 0;
- CPU.MemSpeed = SLOW_ONE_CYCLE;
- CPU.MemSpeedx2 = SLOW_ONE_CYCLE * 2;
- CPU.FastROMSpeed = SLOW_ONE_CYCLE;
- CPU.AutoSaveTimer = 0;
- CPU.SRAMModified = FALSE;
- // CPU.NMITriggerPoint = 4; // Set when ROM image loaded
- CPU.BRKTriggered = FALSE;
- //CPU.TriedInterleavedMode2 = FALSE; // Reset when ROM image loaded
- CPU.NMICycleCount = 0;
- CPU.IRQCycleCount = 0;
- S9xSetPCBase (ICPU.Registers.PC);
-
- ICPU.S9xOpcodes = S9xOpcodesE1;
- ICPU.CPUExecuting = TRUE;
-
- S9xUnpackStatus();
+ ICPU.Registers.PB = 0;
+ ICPU.Registers.PC = S9xGetWord(0xFFFC);
+ ICPU.Registers.D.W = 0;
+ ICPU.Registers.DB = 0;
+ ICPU.Registers.SH = 1;
+ ICPU.Registers.SL = 0xFF;
+ ICPU.Registers.XH = 0;
+ ICPU.Registers.YH = 0;
+ ICPU.Registers.P.W = 0;
+
+ ICPU.ShiftedPB = 0;
+ ICPU.ShiftedDB = 0;
+ SetFlags(MemoryFlag | IndexFlag | IRQ | Emulation);
+ ClearFlags(Decimal);
+
+ CPU.Flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
+ CPU.BranchSkip = FALSE;
+ CPU.NMIActive = FALSE;
+ CPU.IRQActive = FALSE;
+ CPU.WaitingForInterrupt = FALSE;
+ CPU.InDMA = FALSE;
+ CPU.WhichEvent = HBLANK_START_EVENT;
+ CPU.PC = NULL;
+ CPU.PCBase = NULL;
+ CPU.PCAtOpcodeStart = NULL;
+ CPU.WaitAddress = NULL;
+ CPU.WaitCounter = 0;
+ CPU.Cycles = 0;
+ CPU.NextEvent = Settings.HBlankStart;
+ CPU.V_Counter = 0;
+ CPU.MemSpeed = SLOW_ONE_CYCLE;
+ CPU.MemSpeedx2 = SLOW_ONE_CYCLE * 2;
+ CPU.FastROMSpeed = SLOW_ONE_CYCLE;
+ CPU.AutoSaveTimer = 0;
+ CPU.SRAMModified = FALSE;
+ // CPU.NMITriggerPoint = 4; // Set when ROM image loaded
+ CPU.BRKTriggered = FALSE;
+ //CPU.TriedInterleavedMode2 = FALSE; // Reset when ROM image loaded
+ CPU.NMICycleCount = 0;
+ CPU.IRQCycleCount = 0;
+ S9xSetPCBase(ICPU.Registers.PC);
+
+ ICPU.S9xOpcodes = S9xOpcodesE1;
+ ICPU.CPUExecuting = TRUE;
+
+ S9xUnpackStatus();
}
#ifdef ZSNES_FX
-void S9xResetSuperFX ();
+void S9xResetSuperFX();
bool8 WinterGold = 0;
-extern uint8 *C4Ram;
+extern uint8* C4Ram;
#endif
-void S9xReset (void)
+void S9xReset(void)
{
- if (Settings.SuperFX)
- S9xResetSuperFX ();
+ if (Settings.SuperFX)
+ S9xResetSuperFX();
#ifdef ZSNES_FX
- WinterGold = Settings.WinterGold;
+ WinterGold = Settings.WinterGold;
#endif
- ZeroMemory (Memory.FillRAM, 0x8000);
- memset (Memory.VRAM, 0x00, 0x10000);
- memset (Memory.RAM, 0x55, 0x20000);
-
- if(Settings.SPC7110)
- S9xSpc7110Reset();
- S9xResetCPU ();
- S9xResetPPU ();
- S9xResetSRTC ();
- if (Settings.SDD1)
- S9xResetSDD1 ();
-
- S9xResetDMA ();
- S9xResetAPU ();
- S9xResetDSP1 ();
- S9xSA1Init ();
- if (Settings.C4)
- S9xInitC4 ();
- S9xInitCheatData ();
- if(Settings.OBC1)
- ResetOBC1();
-
-// Settings.Paused = FALSE;
+ ZeroMemory(Memory.FillRAM, 0x8000);
+ memset(Memory.VRAM, 0x00, 0x10000);
+ memset(Memory.RAM, 0x55, 0x20000);
+
+ if (Settings.SPC7110)
+ S9xSpc7110Reset();
+ S9xResetCPU();
+ S9xResetPPU();
+ S9xResetSRTC();
+ if (Settings.SDD1)
+ S9xResetSDD1();
+
+ S9xResetDMA();
+ S9xResetAPU();
+ S9xResetDSP1();
+ S9xSA1Init();
+ if (Settings.C4)
+ S9xInitC4();
+ S9xInitCheatData();
+ if (Settings.OBC1)
+ ResetOBC1();
+
+ // Settings.Paused = FALSE;
}
-void S9xSoftReset (void)
+void S9xSoftReset(void)
{
- if (Settings.SuperFX)
- S9xResetSuperFX ();
+ if (Settings.SuperFX)
+ S9xResetSuperFX();
#ifdef ZSNES_FX
- WinterGold = Settings.WinterGold;
+ WinterGold = Settings.WinterGold;
#endif
- ZeroMemory (Memory.FillRAM, 0x8000);
- memset (Memory.VRAM, 0x00, 0x10000);
- // memset (Memory.RAM, 0x55, 0x20000);
-
- if(Settings.SPC7110)
- S9xSpc7110Reset();
- S9xResetCPU ();
- S9xSoftResetPPU ();
- S9xResetSRTC ();
- if (Settings.SDD1)
- S9xResetSDD1 ();
-
- S9xResetDMA ();
- S9xResetAPU ();
- S9xResetDSP1 ();
- if(Settings.OBC1)
- ResetOBC1();
- S9xSA1Init ();
- if (Settings.C4)
- S9xInitC4 ();
- S9xInitCheatData ();
-
-// Settings.Paused = FALSE;
+ ZeroMemory(Memory.FillRAM, 0x8000);
+ memset(Memory.VRAM, 0x00, 0x10000);
+ // memset (Memory.RAM, 0x55, 0x20000);
+
+ if (Settings.SPC7110)
+ S9xSpc7110Reset();
+ S9xResetCPU();
+ S9xSoftResetPPU();
+ S9xResetSRTC();
+ if (Settings.SDD1)
+ S9xResetSDD1();
+
+ S9xResetDMA();
+ S9xResetAPU();
+ S9xResetDSP1();
+ if (Settings.OBC1)
+ ResetOBC1();
+ S9xSA1Init();
+ if (Settings.C4)
+ S9xInitC4();
+ S9xInitCheatData();
+
+ // Settings.Paused = FALSE;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 20:05:47 +0000