mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-12-26 19:21:50 +01:00
244 lines
7.6 KiB
C
244 lines
7.6 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 _65c816_h_
|
||
|
|
#define _65c816_h_
|
||
|
|
|
||
|
|
#define AL A.B.l
|
||
|
|
#define AH A.B.h
|
||
|
|
#define XL X.B.l
|
||
|
|
#define XH X.B.h
|
||
|
|
#define YL Y.B.l
|
||
|
|
#define YH Y.B.h
|
||
|
|
#define SL S.B.l
|
||
|
|
#define SH S.B.h
|
||
|
|
#define DL D.B.l
|
||
|
|
#define DH D.B.h
|
||
|
|
#define PL P.B.l
|
||
|
|
#define PH P.B.h
|
||
|
|
|
||
|
|
#define Carry 1
|
||
|
|
#define Zero 2
|
||
|
|
#define IRQ 4
|
||
|
|
#define Decimal 8
|
||
|
|
#define IndexFlag 16
|
||
|
|
#define MemoryFlag 32
|
||
|
|
#define Overflow 64
|
||
|
|
#define Negative 128
|
||
|
|
#define Emulation 256
|
||
|
|
|
||
|
|
#define ClearCarry() (ICPU._Carry = 0)
|
||
|
|
#define SetCarry() (ICPU._Carry = 1)
|
||
|
|
#define SetZero() (ICPU._Zero = 0)
|
||
|
|
#define ClearZero() (ICPU._Zero = 1)
|
||
|
|
#define SetIRQ() (Registers.PL |= IRQ)
|
||
|
|
#define ClearIRQ() (Registers.PL &= ~IRQ)
|
||
|
|
#define SetDecimal() (Registers.PL |= Decimal)
|
||
|
|
#define ClearDecimal() (Registers.PL &= ~Decimal)
|
||
|
|
#define SetIndex() (Registers.PL |= IndexFlag)
|
||
|
|
#define ClearIndex() (Registers.PL &= ~IndexFlag)
|
||
|
|
#define SetMemory() (Registers.PL |= MemoryFlag)
|
||
|
|
#define ClearMemory() (Registers.PL &= ~MemoryFlag)
|
||
|
|
#define SetOverflow() (ICPU._Overflow = 1)
|
||
|
|
#define ClearOverflow() (ICPU._Overflow = 0)
|
||
|
|
#define SetNegative() (ICPU._Negative = 0x80)
|
||
|
|
#define ClearNegative() (ICPU._Negative = 0)
|
||
|
|
|
||
|
|
#define CheckZero() (ICPU._Zero == 0)
|
||
|
|
#define CheckCarry() (ICPU._Carry)
|
||
|
|
#define CheckIRQ() (Registers.PL & IRQ)
|
||
|
|
#define CheckDecimal() (Registers.PL & Decimal)
|
||
|
|
#define CheckIndex() (Registers.PL & IndexFlag)
|
||
|
|
#define CheckMemory() (Registers.PL & MemoryFlag)
|
||
|
|
#define CheckOverflow() (ICPU._Overflow)
|
||
|
|
#define CheckNegative() (ICPU._Negative & 0x80)
|
||
|
|
#define CheckEmulation() (Registers.P.W & Emulation)
|
||
|
|
|
||
|
|
#define ClearFlags(f) (Registers.P.W &= ~(f))
|
||
|
|
#define SetFlags(f) (Registers.P.W |= (f))
|
||
|
|
#define CheckFlag(f) (Registers.PL & (f))
|
||
|
|
|
||
|
|
typedef union
|
||
|
|
{
|
||
|
|
#ifdef LSB_FIRST
|
||
|
|
struct { uint8 l,h; } B;
|
||
|
|
#else
|
||
|
|
struct { uint8 h,l; } B;
|
||
|
|
#endif
|
||
|
|
uint16 W;
|
||
|
|
} pair;
|
||
|
|
|
||
|
|
typedef union {
|
||
|
|
#ifdef LSB_FIRST
|
||
|
|
struct { uint8 xPCl, xPCh, xPB, z; } B;
|
||
|
|
struct { uint16 xPC, d; } W;
|
||
|
|
#else
|
||
|
|
struct { uint8 z, xPB, xPCh, xPCl; } B;
|
||
|
|
struct { uint16 d, xPC; } W;
|
||
|
|
#endif
|
||
|
|
uint32 xPBPC;
|
||
|
|
} PC_t;
|
||
|
|
|
||
|
|
struct SRegisters{
|
||
|
|
uint8 DB;
|
||
|
|
pair P;
|
||
|
|
pair A;
|
||
|
|
pair D;
|
||
|
|
pair S;
|
||
|
|
pair X;
|
||
|
|
pair Y;
|
||
|
|
PC_t PC;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define PBPC PC.xPBPC
|
||
|
|
#define PCw PC.W.xPC
|
||
|
|
#define PCh PC.B.xPCh
|
||
|
|
#define PCl PC.B.xPCl
|
||
|
|
#define PB PC.B.xPB
|
||
|
|
|
||
|
|
EXTERN_C struct SRegisters Registers;
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|