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