From d40ae99422e118188a7f48055dc340c6aca022aa Mon Sep 17 00:00:00 2001 From: Kitty Draper Date: Sat, 5 Mar 2011 21:39:25 -0500 Subject: first commit --- source/spc700.h | 204 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 source/spc700.h (limited to 'source/spc700.h') diff --git a/source/spc700.h b/source/spc700.h new file mode 100644 index 0000000..3d09fee --- /dev/null +++ b/source/spc700.h @@ -0,0 +1,204 @@ +/******************************************************************************* + Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. + + (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and + Jerremy Koot (jkoot@snes9x.com) + + (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) + + (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), + funkyass (funkyass@spam.shaw.ca), + Joel Yliluoma (http://iki.fi/bisqwit/) + Kris Bleakley (codeviolation@hotmail.com), + Matthew Kendora, + Nach (n-a-c-h@users.sourceforge.net), + Peter Bortas (peter@bortas.org) and + zones (kasumitokoduck@yahoo.com) + + C4 x86 assembler and some C emulation code + (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), + _Demo_ (_demo_@zsnes.com), and Nach + + C4 C++ code + (c) Copyright 2003 Brad Jorsch + + DSP-1 emulator code + (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, + John Weidman, neviksti (neviksti@hotmail.com), + Kris Bleakley, Andreas Naive + + DSP-2 emulator code + (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and + Lord Nightmare (lord_nightmare@users.sourceforge.net + + OBC1 emulator code + (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and + Kris Bleakley + Ported from x86 assembler to C by sanmaiwashi + + SPC7110 and RTC C++ emulator code + (c) Copyright 2002 Matthew Kendora with research by + zsKnight, John Weidman, and Dark Force + + 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 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) + + + 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. +*******************************************************************************/ +#ifndef _SPC700_H_ +#define _SPC700_H_ + +#ifdef SPCTOOL +#define NO_CHANNEL_STRUCT +#include "spctool/dsp.h" +#include "spctool/spc700.h" +#include "spctool/soundmod.h" +#endif + +#define Carry 1 +#define Zero 2 +#define Interrupt 4 +#define HalfCarry 8 +#define BreakFlag 16 +#define DirectPageFlag 32 +#define Overflow 64 +#define Negative 128 + +#define APUClearCarry() (IAPU._Carry = 0) +#define APUSetCarry() (IAPU._Carry = 1) +#define APUSetInterrupt() (APURegisters.P |= Interrupt) +#define APUClearInterrupt() (APURegisters.P &= ~Interrupt) +#define APUSetHalfCarry() (APURegisters.P |= HalfCarry) +#define APUClearHalfCarry() (APURegisters.P &= ~HalfCarry) +#define APUSetBreak() (APURegisters.P |= BreakFlag) +#define APUClearBreak() (APURegisters.P &= ~BreakFlag) +#define APUSetDirectPage() (APURegisters.P |= DirectPageFlag) +#define APUClearDirectPage() (APURegisters.P &= ~DirectPageFlag) +#define APUSetOverflow() (IAPU._Overflow = 1) +#define APUClearOverflow() (IAPU._Overflow = 0) + +#define APUCheckZero() (IAPU._Zero == 0) +#define APUCheckCarry() (IAPU._Carry) +#define APUCheckInterrupt() (APURegisters.P & Interrupt) +#define APUCheckHalfCarry() (APURegisters.P & HalfCarry) +#define APUCheckBreak() (APURegisters.P & BreakFlag) +#define APUCheckDirectPage() (APURegisters.P & DirectPageFlag) +#define APUCheckOverflow() (IAPU._Overflow) +#define APUCheckNegative() (IAPU._Zero & 0x80) + +#define APUClearFlags(f) (APURegisters.P &= ~(f)) +#define APUSetFlags(f) (APURegisters.P |= (f)) +#define APUCheckFlag(f) (APURegisters.P & (f)) + +typedef union +{ +#ifdef LSB_FIRST + struct { uint8 A, Y; } B; +#else + struct { uint8 Y, A; } B; +#endif + uint16 W; +} YAndA; + +struct SAPURegisters{ + uint8 P; + YAndA YA; + uint8 X; + uint8 S; + uint16 PC; +}; + +EXTERN_C struct SAPURegisters APURegisters; + +// Needed by ILLUSION OF GAIA +//#define ONE_APU_CYCLE 14 +#define ONE_APU_CYCLE 21 + +// Needed by all games written by the software company called Human +//#define ONE_APU_CYCLE_HUMAN 17 +#define ONE_APU_CYCLE_HUMAN 21 + +// 1.953us := 1.024065.54MHz + +#ifdef SPCTOOL +EXTERN_C int32 ESPC (int32); + +#define APU_EXECUTE() \ +{ \ + int32 l = (CPU.Cycles - APU.Cycles) / 14; \ + if (l > 0) \ + { \ + l -= _EmuSPC(l); \ + APU.Cycles += l * 14; \ + } \ +} + +#else + +#ifdef DEBUGGER +#define APU_EXECUTE1() \ +{ \ + if (APU.Flags & TRACE_FLAG) \ + S9xTraceAPU ();\ + APU.Cycles += S9xAPUCycles [*IAPU.PC]; \ + (*S9xApuOpcodes[*IAPU.PC]) (); \ +} +#else +#define APU_EXECUTE1() \ +{ \ + APU.Cycles += S9xAPUCycles [*IAPU.PC]; \ + (*S9xApuOpcodes[*IAPU.PC]) (); \ +} +#endif + +#define APU_EXECUTE() \ +if (IAPU.APUExecuting) \ +{\ + while (APU.Cycles <= CPU.Cycles) \ + APU_EXECUTE1(); \ +} +#endif + +#endif + -- cgit v1.2.3