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/apu.h | 214 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 source/apu.h (limited to 'source/apu.h') diff --git a/source/apu.h b/source/apu.h new file mode 100644 index 0000000..0a64e34 --- /dev/null +++ b/source/apu.h @@ -0,0 +1,214 @@ +/******************************************************************************* + 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 _apu_h_ +#define _apu_h_ + +#include "spc700.h" + +struct SIAPU +{ + uint8 *PC; + uint8 *RAM; + uint8 *DirectPage; + bool8 APUExecuting; + uint8 Bit; + uint32 Address; + uint8 *WaitAddress1; + uint8 *WaitAddress2; + uint32 WaitCounter; + uint8 *ShadowRAM; + uint8 *CachedSamples; + uint8 _Carry; + uint8 _Zero; + uint8 _Overflow; + uint32 TimerErrorCounter; + uint32 Scanline; + int32 OneCycle; + int32 TwoCycles; +}; + +struct SAPU +{ + int32 Cycles; + bool8 ShowROM; + uint8 Flags; + uint8 KeyedChannels; + uint8 OutPorts [4]; + uint8 DSP [0x80]; + uint8 ExtraRAM [64]; + uint16 Timer [3]; + uint16 TimerTarget [3]; + bool8 TimerEnabled [3]; + bool8 TimerValueWritten [3]; +}; + +EXTERN_C struct SAPU APU; +EXTERN_C struct SIAPU IAPU; +extern int spc_is_dumping; +extern int spc_is_dumping_temp; +extern uint8 spc_dump_dsp[0x100]; +STATIC inline void S9xAPUUnpackStatus() +{ + IAPU._Zero = ((APURegisters.P & Zero) == 0) | (APURegisters.P & Negative); + IAPU._Carry = (APURegisters.P & Carry); + IAPU._Overflow = (APURegisters.P & Overflow) >> 6; +} + +STATIC inline void S9xAPUPackStatus() +{ + APURegisters.P &= ~(Zero | Negative | Carry | Overflow); + APURegisters.P |= IAPU._Carry | ((IAPU._Zero == 0) << 1) | + (IAPU._Zero & 0x80) | (IAPU._Overflow << 6); +} + +START_EXTERN_C +void S9xResetAPU (void); +bool8 S9xInitAPU (); +void S9xDeinitAPU (); +void S9xDecacheSamples (); +int S9xTraceAPU (); +int S9xAPUOPrint (char *buffer, uint16 Address); +void S9xSetAPUControl (uint8 byte); +void S9xSetAPUDSP (uint8 byte); +uint8 S9xGetAPUDSP (); +void S9xSetAPUTimer (uint16 Address, uint8 byte); +bool8 S9xInitSound (int quality, bool8 stereo, int buffer_size); +void S9xOpenCloseSoundTracingFile (bool8); +void S9xPrintAPUState (); +extern int32 S9xAPUCycles [256]; // Scaled cycle lengths +extern int32 S9xAPUCycleLengths [256]; // Raw data. +extern void (*S9xApuOpcodes [256]) (void); +END_EXTERN_C + + +#define APU_VOL_LEFT 0x00 +#define APU_VOL_RIGHT 0x01 +#define APU_P_LOW 0x02 +#define APU_P_HIGH 0x03 +#define APU_SRCN 0x04 +#define APU_ADSR1 0x05 +#define APU_ADSR2 0x06 +#define APU_GAIN 0x07 +#define APU_ENVX 0x08 +#define APU_OUTX 0x09 + +#define APU_MVOL_LEFT 0x0c +#define APU_MVOL_RIGHT 0x1c +#define APU_EVOL_LEFT 0x2c +#define APU_EVOL_RIGHT 0x3c +#define APU_KON 0x4c +#define APU_KOFF 0x5c +#define APU_FLG 0x6c +#define APU_ENDX 0x7c + +#define APU_EFB 0x0d +#define APU_PMON 0x2d +#define APU_NON 0x3d +#define APU_EON 0x4d +#define APU_DIR 0x5d +#define APU_ESA 0x6d +#define APU_EDL 0x7d + +#define APU_C0 0x0f +#define APU_C1 0x1f +#define APU_C2 0x2f +#define APU_C3 0x3f +#define APU_C4 0x4f +#define APU_C5 0x5f +#define APU_C6 0x6f +#define APU_C7 0x7f + +#define APU_SOFT_RESET 0x80 +#define APU_MUTE 0x40 +#define APU_ECHO_DISABLED 0x20 + +#define FREQUENCY_MASK 0x3fff +#endif + -- cgit v1.2.3