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author | Kitty Draper | 2011-03-05 21:39:25 -0500 |
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committer | Kitty Draper | 2011-03-05 21:39:25 -0500 |
commit | d40ae99422e118188a7f48055dc340c6aca022aa (patch) | |
tree | 83ab93f49fd9e66e43bcd824091ae1dbcaa0c173 /source/65c816.h | |
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Diffstat (limited to 'source/65c816.h')
-rw-r--r-- | source/65c816.h | 172 |
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diff --git a/source/65c816.h b/source/65c816.h new file mode 100644 index 0000000..a82de8d --- /dev/null +++ b/source/65c816.h @@ -0,0 +1,172 @@ +/******************************************************************************* + 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 _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; + +struct SRegisters{ + uint8 PB; + uint8 DB; + pair P; + pair A; + pair D; + pair S; + pair X; + pair Y; + uint16 PC; +}; + +EXTERN_C struct SRegisters Registers; + +#endif + |