mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-11-27 21:14:21 +01:00
273 lines
8.1 KiB
C
273 lines
8.1 KiB
C
|
/**********************************************************************************
|
||
|
|
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 2002 - 2004 Matthew Kendora
|
||
|
|
|
||
|
|
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
|
||
|
|
|
||
|
|
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
|
||
|
|
|
||
|
|
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
|
||
|
|
|
||
|
|
(c) Copyright 2002 - 2006 Brad Jorsch (anomie@users.sourceforge.net),
|
||
|
|
funkyass (funkyass@spam.shaw.ca),
|
||
|
|
Kris Bleakley (codeviolation@hotmail.com),
|
||
|
|
Nach (n-a-c-h@users.sourceforge.net), and
|
||
|
|
zones (kasumitokoduck@yahoo.com)
|
||
|
|
|
||
|
|
BS-X C emulator code
|
||
|
|
(c) Copyright 2005 - 2006 Dreamer Nom,
|
||
|
|
zones
|
||
|
|
|
||
|
|
C4 x86 assembler and some C emulation code
|
||
|
|
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
|
||
|
|
Nach,
|
||
|
|
zsKnight (zsknight@zsnes.com)
|
||
|
|
|
||
|
|
C4 C++ code
|
||
|
|
(c) Copyright 2003 - 2006 Brad Jorsch,
|
||
|
|
Nach
|
||
|
|
|
||
|
|
DSP-1 emulator code
|
||
|
|
(c) Copyright 1998 - 2006 _Demo_,
|
||
|
|
Andreas Naive (andreasnaive@gmail.com)
|
||
|
|
Gary Henderson,
|
||
|
|
Ivar (ivar@snes9x.com),
|
||
|
|
John Weidman,
|
||
|
|
Kris Bleakley,
|
||
|
|
Matthew Kendora,
|
||
|
|
Nach,
|
||
|
|
neviksti (neviksti@hotmail.com)
|
||
|
|
|
||
|
|
DSP-2 emulator code
|
||
|
|
(c) Copyright 2003 John Weidman,
|
||
|
|
Kris Bleakley,
|
||
|
|
Lord Nightmare (lord_nightmare@users.sourceforge.net),
|
||
|
|
Matthew Kendora,
|
||
|
|
neviksti
|
||
|
|
|
||
|
|
|
||
|
|
DSP-3 emulator code
|
||
|
|
(c) Copyright 2003 - 2006 John Weidman,
|
||
|
|
Kris Bleakley,
|
||
|
|
Lancer,
|
||
|
|
z80 gaiden
|
||
|
|
|
||
|
|
DSP-4 emulator code
|
||
|
|
(c) Copyright 2004 - 2006 Dreamer Nom,
|
||
|
|
John Weidman,
|
||
|
|
Kris Bleakley,
|
||
|
|
Nach,
|
||
|
|
z80 gaiden
|
||
|
|
|
||
|
|
OBC1 emulator code
|
||
|
|
(c) Copyright 2001 - 2004 zsKnight,
|
||
|
|
pagefault (pagefault@zsnes.com),
|
||
|
|
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,
|
||
|
|
Dark Force
|
||
|
|
|
||
|
|
S-DD1 C emulator code
|
||
|
|
(c) Copyright 2003 Brad Jorsch with research by
|
||
|
|
Andreas Naive,
|
||
|
|
John Weidman
|
||
|
|
|
||
|
|
S-RTC C emulator code
|
||
|
|
(c) Copyright 2001-2006 byuu,
|
||
|
|
John Weidman
|
||
|
|
|
||
|
|
ST010 C++ emulator code
|
||
|
|
(c) Copyright 2003 Feather,
|
||
|
|
John Weidman,
|
||
|
|
Kris Bleakley,
|
||
|
|
Matthew Kendora
|
||
|
|
|
||
|
|
Super FX x86 assembler emulator code
|
||
|
|
(c) Copyright 1998 - 2003 _Demo_,
|
||
|
|
pagefault,
|
||
|
|
zsKnight,
|
||
|
|
|
||
|
|
Super FX C emulator code
|
||
|
|
(c) Copyright 1997 - 1999 Ivar,
|
||
|
|
Gary Henderson,
|
||
|
|
John Weidman
|
||
|
|
|
||
|
|
Sound DSP emulator code is derived from SNEeSe and OpenSPC:
|
||
|
|
(c) Copyright 1998 - 2003 Brad Martin
|
||
|
|
(c) Copyright 1998 - 2006 Charles Bilyue'
|
||
|
|
|
||
|
|
SH assembler code partly based on x86 assembler code
|
||
|
|
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
|
||
|
|
|
||
|
|
2xSaI filter
|
||
|
|
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
|
||
|
|
|
||
|
|
HQ2x filter
|
||
|
|
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
|
||
|
|
|
||
|
|
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/or 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 or it's derivatives.
|
||
|
|
|
||
|
|
Snes9x is freeware for PERSONAL USE only. Commercial users should
|
||
|
|
seek permission of the copyright holders first. Commercial use includes,
|
||
|
|
but is not limited to, charging money for Snes9x or software derived from
|
||
|
|
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
|
||
|
|
using Snes9x as a promotion for your commercial product.
|
||
|
|
|
||
|
|
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;
|
||
|
|
int32 NextAPUTimerPos;
|
||
|
|
int32 APUTimerCounter;
|
||
|
|
uint32 Scanline;
|
||
|
|
int32 OneCycle;
|
||
|
|
int32 TwoCycles;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct SAPU
|
||
|
|
{
|
||
|
|
int32 Cycles;
|
||
|
|
bool8 ShowROM;
|
||
|
|
uint32 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);
|
||
|
|
void S9xUpdateAPUTimer (void);
|
||
|
|
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
|
||
|
|
|