📄 sa1addr.h

📁 SFC游戏模拟器 snes9x 1.43 的原代码
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/*******************************************************************************  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.*******************************************************************************/.macro GetCarry	movb SA1_Carry, %dl	shrb %dl.endm.macro GetNotCarry	cmpb $1, SA1_Carry.endm.macro SetZN	movb %al, SA1_Zero	movb %al, SA1_Negative.endm.macro Set16ZN	movb %ah, SA1_Negative	setnz SA1_Zero.endm.macro SetZNC	setc SA1_Carry	movb %al, SA1_Negative	movb %al, SA1_Zero.endm.macro Set16ZNC	setc SA1_Carry	setnz SA1_Zero	movb %ah, SA1_Negative.endm.macro SetZNCV	setc SA1_Carry	seto SA1_Overflow	movb %al, SA1_Negative	movb %al, SA1_Zero.endm.macro Set16ZNCV	setc SA1_Carry	seto SA1_Overflow	setnz SA1_Zero	movb %ah, SA1_Negative.endm.macro SetZNV	seto SA1_Overflow	movb %al, SA1_Negative	movb %al, SA1_Zero.endm.macro Set16ZNV	seto SA1_Overflow	setnz SA1_Zero	movb %ah, SA1_Negative.endm/************* IMMEDIATE8 ****************/.Macro Immediate8 K	movb (PC), %al	incl PC.endm/************* IMMEDIATE16 ****************/.macro Immediate16 K	movw (PC), %ax	addl $2, PC.endm/************* Relative ****************/.macro Relative K	movl PC, %edx	movsbl (%edx), %eax	incl %edx	movl %edx, PC	subl SA1PCBase, %edx	addl %eax, %edx	andl $0xffff, %edx.endm/************* RelativeLong ****************/.macro RelativeLong K	xorl %eax, %eax	movl PC, %edx	movw (%edx), %ax	addl $2, %edx	movl %edx, PC	subl SA1PCBase, %edx	addl %eax, %edx	andl $0xffff, %edx.endm/************* AbsoluteIndexedIndirect8 ****************/.macro AbsoluteIndexedIndirect8 K	xorl %edx, %edx	movw XX, %dx	addw (PC), %dx	addl $2, PC	orl  SA1ShiftedPB, %edx	call S9xSA1GetWord	movl %eax, %edx	andl $0xffff, %edx.endm/************* AbsoluteIndirectLong8 ****************/.macro AbsoluteIndirectLong8 K	movw (PC), %dx	addl $2, PC	andl $0xffff, %edx	pushl %edx	call S9xSA1GetWord	popl %edx	pushl %eax	addl $2, %edx	call S9xSA1GetByte	popl %edx	andl $0xff, %eax	andl $0xffff, %edx	sall $16, %eax	orl  %eax, %edx.endm.macro AbsoluteIndirect8 K	movw (PC), %dx	addl $2, PC	andl $0xffff, %edx	call S9xSA1GetWord	movl %eax, %edx	andl $0xffff, %edx.endm.macro Absolute8 K	movw (PC), %dx	addl $2, PC	andl $0xffff, %edx	orl  SA1ShiftedDB, %edx.endm.macro AbsoluteLong8 K	movl (PC), %edx	add $3, PC	andl $0xffffff, %edx.endm.macro Direct8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC.endm.macro DirectIndirectIndexed8 K	xorl %edx, %edx	movb (PC), %dl	incl PC	addw DD, %dx	call S9xSA1GetWord	movl SA1ShiftedDB, %edx	movw %ax, %dx	xorl %eax, %eax	movw YY, %ax	addl %eax, %edx.endm.macro DirectIndirectIndexedLong8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	pushl %edx	call S9xSA1GetWord	popl %edx	pushw %ax	addw $2, %dx	call S9xSA1GetByte	andl $0xff, %eax	sall $16, %eax	xorl %edx, %edx	popw %ax	movw YY, %dx	addl %eax, %edx	andl $0xffffff, %edx.endm.macro DirectIndexedIndirect8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	addw XX, %dx	call S9xSA1GetWord	movl SA1ShiftedDB, %edx	movw %ax, %dx.endm.macro DirectIndexedX8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	addw XX, %dx.endm.macro DirectIndexedY8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	addw YY, %dx.endm.macro AbsoluteIndexedX8 K	movl SA1ShiftedDB, %edx	movw (PC), %dx	xorl %eax, %eax	addl $2, PC	movw XX, %ax	addl %eax, %edx	andl $0xffffff, %edx.endm.macro AbsoluteIndexedY8 K	movl SA1ShiftedDB, %edx	movw (PC), %dx	xorl %eax, %eax	addl $2, PC	movw YY, %ax	addl %eax, %edx	andl $0xffffff, %edx.endm.macro AbsoluteLongIndexedX8 K	movl (PC), %edx	xorl %eax, %eax	addl $3, PC	movw XX, %ax	addl %eax, %edx	andl $0xffffff, %edx.endm.macro DirectIndirect8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	call S9xSA1GetWord	movl SA1ShiftedDB, %edx	movw %ax, %dx.endm.macro DirectIndirectLong8 K	xorl %edx, %edx	movb (PC), %dl	addw DD, %dx	incl PC	pushl %edx	call S9xSA1GetWord	popl %edx	pushw %ax	addw $2, %dx	call S9xSA1GetByte	andl $0xff, %eax	sall $16, %eax	popw %ax	movl %eax, %edx.endm.macro StackRelative8 K	xorl %edx, %edx	movb (PC), %dl	addw SS, %dx	incl PC.endm.macro StackRelativeIndirectIndexed8 K	xorl %edx, %edx	movb (PC), %dl	addw SS, %dx	incl PC	call S9xSA1GetWord	movl SA1ShiftedDB, %edx	movw %ax, %dx	xorl %eax, %eax	movw YY, %ax	addl %eax, %edx	andl $0xffffff, %edx.endm#if 0.macro PushByte K	movl SS, %edx	andl $0xffff, %edx	call S9xSA1SetByte	decw SS.endm.macro PushWord K	movl SS, %edx	decl %edx	andl $0xffff, %edx	call S9xSA1SetWord	movl SS, %edx	subl $2, %edx	movw %dx, SS.endm.macro PullByte K	movl SS, %edx	incl %edx	movw %dx, SS	andl $0xffff, %edx	call S9xSA1GetByte.endm.macro PullWord K	movl SS, %edx	addw $2, %dx	movw %dx, SS	decl %edx	andl $0xffff, %edx	call S9xSA1GetWord.endm#endif.macro PushByte K	movl SS, %edx	andl $0xffff, %edx	call S9xSA1SetByte	decw SS.endm.macro PushByteE K	movl SS, %edx	andl $0x00ff, %edx	movb $0x01, %dh	movw %dx, SS	call S9xSA1SetByte.endm.macro PushWord K	xorl %edx, %edx	movw SS, %dx	pushl %eax	pushl %edx	movb %ah, %al	call S9xSA1SetByte	popl %edx	popl %eax	decw %dx	call S9xSA1SetByte         	subw $2, SS      .endm.macro PushWordE K	xorl %edx, %edx	movw SS, %dx	pushl %eax	pushl %edx	movb %ah, %al	call S9xSA1SetByte	popl %edx	popl %eax	decw %dx	movb $0x01, %dh	call S9xSA1SetByte         	subw $2, SS      .endm.macro PushWordENew K	xorl %edx, %edx	movw SS, %dx	pushl %eax	pushl %edx	movb %ah, %al	call S9xSA1SetByte	popl %edx	popl %eax	decw %dx	call S9xSA1SetByte	movb $0x01, %dh	subw $2, SS      .endm.macro PullByte K	movl SS, %edx	incl %edx	movw %dx, SS	andl $0xffff, %edx	call S9xSA1GetByte.endm.macro PullByteE K	movl SS, %edx	incl %edx	andl $0xffff, %edx	movb $0x01, %dh	call S9xSA1GetByte	movw %dx, SS.endm.macro PullWord K	movl SS, %edx	incw %dx	andl $0xffff, %edx 	pushl %edx	call S9xSA1GetByte	movb %al, OpenBus	popl %edx	incw %dx	call S9xSA1GetByte	movb %al, %ah	movb OpenBus, %al	movw %dx, SS.endm.macro PullWordE K	movl SS, %edx	andl $0xffff, %edx 	incw %dx	movb $0x01, %dh	pushl %edx	call S9xSA1GetByte	popl %edx	movb %al, OpenBus	incw %dx	movb $0x01, %dh	call S9xSA1GetByte	movb %al, %ah	movb OpenBus, %al	movw %dw, SS.endm.macro PullWordENew K	movl SS, %edx	incw %dx	andl $0xffff, %edx 	pushl %edx	call S9xSA1GetByte	movb %al, OpenBus	popl %edx	incw %dx	call S9xSA1GetByte	movb %al, %ah	movb OpenBus, %al	movb $0x01, %dh	movw %dx, SS.endm
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