mirror of
https://github.com/ShadauxCat/CATSFC.git
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241 lines
6.7 KiB
C++
241 lines
6.7 KiB
C++
/*******************************************************************************
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
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Jerremy Koot (jkoot@snes9x.com)
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(c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
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(c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
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funkyass (funkyass@spam.shaw.ca),
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Joel Yliluoma (http://iki.fi/bisqwit/)
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Kris Bleakley (codeviolation@hotmail.com),
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Matthew Kendora,
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Nach (n-a-c-h@users.sourceforge.net),
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Peter Bortas (peter@bortas.org) and
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zones (kasumitokoduck@yahoo.com)
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C4 x86 assembler and some C emulation code
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(c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
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_Demo_ (_demo_@zsnes.com), and Nach
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C4 C++ code
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(c) Copyright 2003 Brad Jorsch
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DSP-1 emulator code
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(c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
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John Weidman, neviksti (neviksti@hotmail.com),
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Kris Bleakley, Andreas Naive
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DSP-2 emulator code
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(c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
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Lord Nightmare (lord_nightmare@users.sourceforge.net
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OBC1 emulator code
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(c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
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Kris Bleakley
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Ported from x86 assembler to C by sanmaiwashi
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SPC7110 and RTC C++ emulator code
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(c) Copyright 2002 Matthew Kendora with research by
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zsKnight, John Weidman, and Dark Force
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S-DD1 C emulator code
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(c) Copyright 2003 Brad Jorsch with research by
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Andreas Naive and John Weidman
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S-RTC C emulator code
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(c) Copyright 2001 John Weidman
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ST010 C++ emulator code
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(c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
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Super FX x86 assembler emulator code
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(c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
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Super FX C emulator code
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(c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
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SH assembler code partly based on x86 assembler code
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(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
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Specific ports contains the works of other authors. See headers in
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individual files.
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Snes9x homepage: http://www.snes9x.com
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Permission to use, copy, modify and distribute Snes9x in both binary and
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source form, for non-commercial purposes, is hereby granted without fee,
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providing that this license information and copyright notice appear with
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all copies and any derived work.
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This software is provided 'as-is', without any express or implied
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warranty. In no event shall the authors be held liable for any damages
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arising from the use of this software.
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Snes9x is freeware for PERSONAL USE only. Commercial users should
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seek permission of the copyright holders first. Commercial use includes
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charging money for Snes9x or software derived from Snes9x.
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The copyright holders request that bug fixes and improvements to the code
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should be forwarded to them so everyone can benefit from the modifications
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in future versions.
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Super NES and Super Nintendo Entertainment System are trademarks of
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Nintendo Co., Limited and its subsidiary companies.
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*******************************************************************************/
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#include "snes9x.h"
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#include "memmap.h"
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#include "ppu.h"
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#include "dsp1.h"
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#include "cpuexec.h"
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#include "debug.h"
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#include "apu.h"
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#include "dma.h"
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#include "sa1.h"
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#include "cheats.h"
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#include "srtc.h"
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#include "sdd1.h"
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#include "spc7110.h"
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#include "obc1.h"
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#ifndef ZSNES_FX
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#include "fxemu.h"
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extern struct FxInit_s SuperFX;
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void S9xResetSuperFX ()
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{
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SuperFX.vFlags = 0; //FX_FLAG_ROM_BUFFER;// | FX_FLAG_ADDRESS_CHECKING;
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FxReset (&SuperFX);
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}
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#endif
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void S9xResetCPU ()
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{
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ICPU.Registers.PB = 0;
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ICPU.Registers.PC = S9xGetWord (0xFFFC);
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ICPU.Registers.D.W = 0;
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ICPU.Registers.DB = 0;
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ICPU.Registers.SH = 1;
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ICPU.Registers.SL = 0xFF;
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ICPU.Registers.XH = 0;
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ICPU.Registers.YH = 0;
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ICPU.Registers.P.W = 0;
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ICPU.ShiftedPB = 0;
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ICPU.ShiftedDB = 0;
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SetFlags (MemoryFlag | IndexFlag | IRQ | Emulation);
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ClearFlags (Decimal);
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CPU.Flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
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CPU.BranchSkip = FALSE;
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CPU.NMIActive = FALSE;
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CPU.IRQActive = FALSE;
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CPU.WaitingForInterrupt = FALSE;
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CPU.InDMA = FALSE;
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CPU.WhichEvent = HBLANK_START_EVENT;
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CPU.PC = NULL;
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CPU.PCBase = NULL;
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CPU.PCAtOpcodeStart = NULL;
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CPU.WaitAddress = NULL;
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CPU.WaitCounter = 0;
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CPU.Cycles = 0;
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CPU.NextEvent = Settings.HBlankStart;
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CPU.V_Counter = 0;
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CPU.MemSpeed = SLOW_ONE_CYCLE;
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CPU.MemSpeedx2 = SLOW_ONE_CYCLE * 2;
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CPU.FastROMSpeed = SLOW_ONE_CYCLE;
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CPU.AutoSaveTimer = 0;
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CPU.SRAMModified = FALSE;
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// CPU.NMITriggerPoint = 4; // Set when ROM image loaded
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CPU.BRKTriggered = FALSE;
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//CPU.TriedInterleavedMode2 = FALSE; // Reset when ROM image loaded
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CPU.NMICycleCount = 0;
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CPU.IRQCycleCount = 0;
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S9xSetPCBase (ICPU.Registers.PC);
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ICPU.S9xOpcodes = S9xOpcodesE1;
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ICPU.CPUExecuting = TRUE;
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S9xUnpackStatus();
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}
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#ifdef ZSNES_FX
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START_EXTERN_C
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void S9xResetSuperFX ();
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bool8 WinterGold = 0;
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extern uint8 *C4Ram;
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END_EXTERN_C
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#endif
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void S9xReset (void)
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{
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if (Settings.SuperFX)
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S9xResetSuperFX ();
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#ifdef ZSNES_FX
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WinterGold = Settings.WinterGold;
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#endif
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ZeroMemory (Memory.FillRAM, 0x8000);
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memset (Memory.VRAM, 0x00, 0x10000);
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memset (Memory.RAM, 0x55, 0x20000);
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if(Settings.SPC7110)
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S9xSpc7110Reset();
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S9xResetCPU ();
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S9xResetPPU ();
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S9xResetSRTC ();
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if (Settings.SDD1)
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S9xResetSDD1 ();
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S9xResetDMA ();
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S9xResetAPU ();
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S9xResetDSP1 ();
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S9xSA1Init ();
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if (Settings.C4)
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S9xInitC4 ();
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S9xInitCheatData ();
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if(Settings.OBC1)
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ResetOBC1();
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// Settings.Paused = FALSE;
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}
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void S9xSoftReset (void)
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{
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if (Settings.SuperFX)
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S9xResetSuperFX ();
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#ifdef ZSNES_FX
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WinterGold = Settings.WinterGold;
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#endif
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ZeroMemory (Memory.FillRAM, 0x8000);
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memset (Memory.VRAM, 0x00, 0x10000);
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// memset (Memory.RAM, 0x55, 0x20000);
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if(Settings.SPC7110)
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S9xSpc7110Reset();
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S9xResetCPU ();
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S9xSoftResetPPU ();
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S9xResetSRTC ();
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if (Settings.SDD1)
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S9xResetSDD1 ();
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S9xResetDMA ();
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S9xResetAPU ();
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S9xResetDSP1 ();
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if(Settings.OBC1)
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ResetOBC1();
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S9xSA1Init ();
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if (Settings.C4)
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S9xInitC4 ();
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S9xInitCheatData ();
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// Settings.Paused = FALSE;
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}
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