mirror of
https://github.com/dborth/snes9xgx.git
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260 lines
7.9 KiB
C
260 lines
7.9 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 _SPC700_H_
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#define _SPC700_H_
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#ifdef SPCTOOL
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#define NO_CHANNEL_STRUCT
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#include "spctool/dsp.h"
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#include "spctool/spc700.h"
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#include "spctool/soundmod.h"
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#endif
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#define Carry 1
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#define Zero 2
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#define Interrupt 4
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#define HalfCarry 8
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#define BreakFlag 16
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#define DirectPageFlag 32
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#define Overflow 64
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#define Negative 128
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#define APUClearCarry() (IAPU._Carry = 0)
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#define APUSetCarry() (IAPU._Carry = 1)
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#define APUSetInterrupt() (APURegisters.P |= Interrupt)
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#define APUClearInterrupt() (APURegisters.P &= ~Interrupt)
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#define APUSetHalfCarry() (APURegisters.P |= HalfCarry)
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#define APUClearHalfCarry() (APURegisters.P &= ~HalfCarry)
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#define APUSetBreak() (APURegisters.P |= BreakFlag)
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#define APUClearBreak() (APURegisters.P &= ~BreakFlag)
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#define APUSetDirectPage() (APURegisters.P |= DirectPageFlag)
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#define APUClearDirectPage() (APURegisters.P &= ~DirectPageFlag)
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#define APUSetOverflow() (IAPU._Overflow = 1)
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#define APUClearOverflow() (IAPU._Overflow = 0)
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#define APUCheckZero() (IAPU._Zero == 0)
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#define APUCheckCarry() (IAPU._Carry)
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#define APUCheckInterrupt() (APURegisters.P & Interrupt)
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#define APUCheckHalfCarry() (APURegisters.P & HalfCarry)
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#define APUCheckBreak() (APURegisters.P & BreakFlag)
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#define APUCheckDirectPage() (APURegisters.P & DirectPageFlag)
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#define APUCheckOverflow() (IAPU._Overflow)
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#define APUCheckNegative() (IAPU._Zero & 0x80)
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#define APUClearFlags(f) (APURegisters.P &= ~(f))
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#define APUSetFlags(f) (APURegisters.P |= (f))
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#define APUCheckFlag(f) (APURegisters.P & (f))
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typedef union
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{
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#ifdef LSB_FIRST
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struct { uint8 A, Y; } B;
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#else
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struct { uint8 Y, A; } B;
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#endif
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uint16 W;
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} YAndA;
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struct SAPURegisters{
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uint8 P;
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YAndA YA;
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uint8 X;
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uint8 S;
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uint16 PC;
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};
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EXTERN_C struct SAPURegisters APURegisters;
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// Needed by ILLUSION OF GAIA
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//#define ONE_APU_CYCLE 14
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#define ONE_APU_CYCLE 21
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// Needed by all games written by the software company called Human
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//#define ONE_APU_CYCLE_HUMAN 17
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#define ONE_APU_CYCLE_HUMAN 21
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// 1.953us := 1.024065.54MHz
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#ifdef SPCTOOL
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EXTERN_C int32 ESPC (int32);
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#define APU_EXECUTE() \
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{ \
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int32 l = (CPU.Cycles - APU.Cycles) / 14; \
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if (l > 0) \
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{ \
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l -= _EmuSPC(l); \
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APU.Cycles += l * 14; \
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} \
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}
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#else
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#ifdef DEBUGGER
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#define APU_EXECUTE1() \
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{ \
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if (APU.Flags & TRACE_FLAG) \
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S9xTraceAPU ();\
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APU.Cycles += S9xAPUCycles [*IAPU.PC]; \
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(*S9xApuOpcodes[*IAPU.PC]) (); \
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}
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#else
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#define APU_EXECUTE1() \
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{ \
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APU.Cycles += S9xAPUCycles [*IAPU.PC]; \
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(*S9xApuOpcodes[*IAPU.PC]) (); \
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}
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#endif
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#define APU_EXECUTE() \
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if (IAPU.APUExecuting) \
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{\
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while (APU.Cycles <= CPU.Cycles) \
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APU_EXECUTE1(); \
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}
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#endif
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#endif
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