mirror of
https://github.com/dborth/snes9xgx.git
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216 lines
7.3 KiB
C
216 lines
7.3 KiB
C
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/**********************************************************************************
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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 2002 - 2004 Matthew Kendora
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(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
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(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
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(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
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(c) Copyright 2002 - 2006 Brad Jorsch (anomie@users.sourceforge.net),
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funkyass (funkyass@spam.shaw.ca),
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Kris Bleakley (codeviolation@hotmail.com),
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Nach (n-a-c-h@users.sourceforge.net), and
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zones (kasumitokoduck@yahoo.com)
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BS-X C emulator code
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(c) Copyright 2005 - 2006 Dreamer Nom,
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zones
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C4 x86 assembler and some C emulation code
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(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
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Nach,
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zsKnight (zsknight@zsnes.com)
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C4 C++ code
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(c) Copyright 2003 - 2006 Brad Jorsch,
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Nach
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DSP-1 emulator code
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(c) Copyright 1998 - 2006 _Demo_,
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Andreas Naive (andreasnaive@gmail.com)
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Gary Henderson,
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Ivar (ivar@snes9x.com),
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John Weidman,
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Kris Bleakley,
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Matthew Kendora,
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Nach,
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neviksti (neviksti@hotmail.com)
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DSP-2 emulator code
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(c) Copyright 2003 John Weidman,
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Kris Bleakley,
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Lord Nightmare (lord_nightmare@users.sourceforge.net),
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Matthew Kendora,
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neviksti
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DSP-3 emulator code
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(c) Copyright 2003 - 2006 John Weidman,
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Kris Bleakley,
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Lancer,
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z80 gaiden
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DSP-4 emulator code
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(c) Copyright 2004 - 2006 Dreamer Nom,
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John Weidman,
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Kris Bleakley,
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Nach,
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z80 gaiden
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OBC1 emulator code
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(c) Copyright 2001 - 2004 zsKnight,
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pagefault (pagefault@zsnes.com),
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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,
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John Weidman,
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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,
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John Weidman
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S-RTC C emulator code
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(c) Copyright 2001-2006 byuu,
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John Weidman
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ST010 C++ emulator code
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(c) Copyright 2003 Feather,
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John Weidman,
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Kris Bleakley,
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Matthew Kendora
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Super FX x86 assembler emulator code
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(c) Copyright 1998 - 2003 _Demo_,
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pagefault,
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zsKnight,
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Super FX C emulator code
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(c) Copyright 1997 - 1999 Ivar,
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Gary Henderson,
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John Weidman
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Sound DSP emulator code is derived from SNEeSe and OpenSPC:
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(c) Copyright 1998 - 2003 Brad Martin
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(c) Copyright 1998 - 2006 Charles Bilyue'
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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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2xSaI filter
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(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
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HQ2x filter
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(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
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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/or distribute Snes9x in both binary
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and source form, for non-commercial purposes, is hereby granted without
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fee, providing that this license information and copyright notice appear
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with 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 or it's derivatives.
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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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but is not limited to, charging money for Snes9x or software derived from
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Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
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using Snes9x as a promotion for your commercial product.
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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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#ifndef _FXEMU_H_
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#define _FXEMU_H_ 1
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#include "port.h"
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/* The FxInfo_s structure, the link between the FxEmulator and the Snes Emulator */
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struct FxInit_s
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{
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uint32 vFlags;
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uint8 * pvRegisters; /* 768 bytes located in the memory at address 0x3000 */
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uint32 nRamBanks; /* Number of 64kb-banks in GSU-RAM/BackupRAM (banks 0x70-0x73) */
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uint8 * pvRam; /* Pointer to GSU-RAM */
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uint32 nRomBanks; /* Number of 32kb-banks in Cart-ROM */
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uint8 * pvRom; /* Pointer to Cart-ROM */
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uint32 speedPerLine;
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bool8 oneLineDone;
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};
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/* Reset the FxChip */
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extern void FxReset(struct FxInit_s *psFxInfo);
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/* Execute until the next stop instruction */
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extern int FxEmulate(uint32 nInstructions);
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/* Write access to the cache */
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extern void FxCacheWriteAccess(uint16 vAddress);
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extern void FxFlushCache(); /* Callled when the G flag in SFR is set to zero */
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/* Breakpoint */
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extern void FxBreakPointSet(uint32 vAddress);
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extern void FxBreakPointClear();
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/* Step by step execution */
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extern int FxStepOver(uint32 nInstructions);
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/* Errors */
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extern int FxGetErrorCode();
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extern int FxGetIllegalAddress();
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/* Access to internal registers */
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extern uint32 FxGetColorRegister();
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extern uint32 FxGetPlotOptionRegister();
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extern uint32 FxGetSourceRegisterIndex();
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extern uint32 FxGetDestinationRegisterIndex();
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/* Get string for opcode currently in the pipe */
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extern void FxPipeString(char * pvString);
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/* Get the byte currently in the pipe */
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extern uint8 FxPipe();
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/* SCBR write seen. We need to update our cached screen pointers */
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extern void fx_dirtySCBR (void);
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/* Update RamBankReg and RAM Bank pointer */
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extern void fx_updateRamBank(uint8 Byte);
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/* Option flags */
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#define FX_FLAG_ADDRESS_CHECKING 0x01
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#define FX_FLAG_ROM_BUFFER 0x02
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/* Return codes from FxEmulate(), FxStepInto() or FxStepOver() */
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#define FX_BREAKPOINT -1
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#define FX_ERROR_ILLEGAL_ADDRESS -2
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/* Return the number of bytes in an opcode */
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#define OPCODE_BYTES(op) ((((op)>=0x05&&(op)<=0xf)||((op)>=0xa0&&(op)<=0xaf))?2:(((op)>=0xf0)?3:1))
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extern void fx_computeScreenPointers ();
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#endif
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