mirror of https://github.com/snes9xgit/snes9x.git
529 lines
11 KiB
Plaintext
529 lines
11 KiB
Plaintext
;Copyright (C) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
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;
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;This program is free software; you can redistribute it and/or
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;modify it under the terms of the GNU General Public License
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;as published by the Free Software Foundation; either
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;version 2 of the License, or (at your option) any later
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;version.
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;
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;This program is distributed in the hope that it will be useful,
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;but WITHOUT ANY WARRANTY; without even the implied warranty of
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;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;GNU General Public License for more details.
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;
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;You should have received a copy of the GNU General Public License
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;along with this program; if not, write to the Free Software
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;Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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%macro FXReturn 0
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dec dword [NumberOfOpcodes]
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jmp [FxTabled+ecx*4]
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ALIGN32
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%endmacro
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%macro FXReturn2 0
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dec dword [NumberOfOpcodes]
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js %%endloop
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jmp [FxTabled+ecx*4]
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%%endloop
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jmp FXEndLoop
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; jmp [FxTabled+ecx*4]
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ALIGN32
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%endmacro
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%macro TORNd 1 ; V
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FETCHPIPE
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mov edi, SfxR0+%1*4
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inc ebp ; Increase program counter
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call [FxTable+ecx*4]
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mov edi,SfxR0
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FXReturn
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%endmacro
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%macro WITHc 1 ; Verified.
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FETCHPIPE
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mov esi,SfxR0+%1*4
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mov edi,SfxR0+%1*4
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mov dword [SfxB],1
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inc ebp ; Increase program counter
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call [FxTablec+ecx*4]
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mov esi,SfxR0
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mov edi,SfxR0
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mov dword [SfxB],0 ; Clear B Flag
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FXReturn
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%endmacro
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%macro STWRNc 1 ; V
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mov eax,[SfxR0+%1*4] ; Read register
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mov ebx,[SfxRAMMem]
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mov dword [SfxLastRamAdr],eax ; Save last ram address
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add dword [SfxLastRamAdr],ebx ; Save last ram address
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mov edx,[esi] ; Read Source
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FETCHPIPE
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mov [ebx+eax],dl ; Store Word
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xor eax,1
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inc ebp ; Increase program counter
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mov [ebx+eax],dh ; Store Word
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CLRFLAGS
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FXReturn
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%endmacro
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%macro STBRNc 1 ; V
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mov eax,[SfxR0+%1*4] ; Read register
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FETCHPIPE
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add eax,[SfxRAMMem]
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mov dword [SfxLastRamAdr],eax ; Save last ram address
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mov ebx,[esi] ; Read Source
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mov byte [eax],bl ; Store Byte
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CLRFLAGS
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inc ebp ; Increase program counter
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FXReturn
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%endmacro
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%macro LDWRNc 1 ; V
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mov eax,[SfxR0+%1*4] ; Read register
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mov ebx,[SfxRAMMem]
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mov dword [SfxLastRamAdr],eax ; Save last ram address
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FETCHPIPE
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mov dl,[ebx+eax] ; Store Word
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add dword [SfxLastRamAdr],ebx ; Save last ram address
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xor eax,1
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and edx,0FFFFh
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inc ebp ; Increase program counter
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mov dh,[ebx+eax] ; Store Word
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mov [edi],edx ; Read Source
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CLRFLAGS
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FXReturn
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%endmacro
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%macro LDBRNc 1 ; V
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mov eax,[SfxR0+%1*4] ; Read register
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FETCHPIPE
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add eax,[SfxRAMMem]
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xor ebx,ebx
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mov dword [SfxLastRamAdr],eax ; Save last ram address
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mov bl,[eax] ; Read Byte
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inc ebp ; Increase program counter
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mov [edi],ebx ; Store Result
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ADDRNc 1 ; V
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mov eax, [esi] ; Read Source
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mov ebx, [SfxR0+%1*4]
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FETCHPIPE
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add ax,bx
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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mov [SfxSignZero],eax
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ADCRNc 1 ; V
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FETCHPIPE
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mov eax, [esi] ; Read Source
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mov ebx, [SfxR0+%1*4]
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shr byte[SfxCarry],1
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adc ax,bx
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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mov [SfxSignZero],eax
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ADIRNc 1 ; V
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mov eax, [esi] ; Read Source
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FETCHPIPE
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add ax,%1
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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mov [SfxSignZero],eax
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ADCIRNc 1 ; V
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FETCHPIPE
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mov eax, [esi] ; Read Source
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shr byte[SfxCarry],1
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adc ax,%1
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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mov [SfxSignZero],eax
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro SUBRNc 1 ; V
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4]
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FETCHPIPE
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sub ax,bx
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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xor byte[SfxCarry],1
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro SBCRNc 1 ; V
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FETCHPIPE
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4]
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cmp byte[SfxCarry],1
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sbb ax,bx
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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xor byte[SfxCarry],1
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro SUBIRNc 1 ; V
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mov eax,[esi] ; Read Source
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FETCHPIPE
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sub ax,%1
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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xor byte[SfxCarry],1
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inc ebp ; Increase program counter
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mov [edi],eax ; Write Destination
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro CMPRNc 1 ; V
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4]
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FETCHPIPE
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sub ax,bx
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seto byte[SfxOverflow]
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setc byte[SfxCarry]
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xor byte[SfxCarry],1
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mov [SfxSignZero],eax
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CLRFLAGS
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inc ebp ; Increase program counter
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FXReturn
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%endmacro
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%macro ANDRNc 1 ; V
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4] ; Read RN
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FETCHPIPE
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and eax,ebx
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inc ebp
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mov dword [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro BICRNc 1 ; V
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mov ebx,[SfxR0+%1*4] ; Read RN
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mov eax,[esi] ; Read Source
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xor ebx,0FFFFh
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FETCHPIPE
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and eax,ebx
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inc ebp
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mov dword [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ANDIRNc 1 ; V
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mov eax,[esi] ; Read Source
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FETCHPIPE
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and eax,%1
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inc ebp
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mov dword [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro BICIRNc 1 ; V
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mov eax,[esi] ; Read Source
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FETCHPIPE
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and eax,%1
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inc ebp
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mov dword [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro MULTRNc 1 ; V
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mov al,byte [esi] ; Read Source
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mov bl,byte [SfxR0+%1*4] ; Read RN
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FETCHPIPE
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imul bl
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inc ebp
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and eax,0FFFFh
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mov [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro UMULTRNc 1 ; V
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mov al,byte [esi] ; Read Source
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mov bl,byte [SfxR0+%1*4] ; Read RN
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FETCHPIPE
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mul bl
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inc ebp
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and eax,0FFFFh
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mov [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro MULTIRNc 1 ; V
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mov al,byte [esi] ; Read Source
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mov bl,%1 ; Read RN
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FETCHPIPE
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imul bl
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inc ebp
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and eax,0FFFFh
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mov [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro UMULTIRNc 1 ; V
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mov al,byte [esi] ; Read Source
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mov bl,%1 ; Read RN
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FETCHPIPE
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mul bl
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inc ebp
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and eax,0FFFFh
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mov [SfxSignZero],eax
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mov [edi],eax ; Write Destination
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CLRFLAGS
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FXReturn
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%endmacro
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%macro LINKc 1 ; Verified.
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mov eax,ebp
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sub eax,[SfxCPB]
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add eax,%1
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FETCHPIPE
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mov word [SfxR11],ax
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CLRFLAGS
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inc ebp
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FXReturn
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%endmacro
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%macro JMPRNc 1 ; V
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FETCHPIPE
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mov eax,[SfxR0+%1*4] ; Read RN
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mov ebp,[SfxCPB]
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add ebp,eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro LJMPRNc 1 ; V
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FETCHPIPE
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mov eax,[SfxR0+%1*4]
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and eax,07Fh
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mov byte[SfxPBR],al
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; mov byte[fxtrace+eax],1
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mov eax,[SfxMemTable+eax*4]
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mov [SfxCPB],eax
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mov ebp,eax
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add ebp,[esi] ; Read RN
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mov dword [SfxCacheActive],0
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push ecx
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call FxOp02
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pop ecx
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dec ebp
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FXReturn
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%endmacro
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%macro IBTRNc 1 ; V
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movsx eax,byte[ebp]
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mov cl,[ebp+1]
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add ebp,2
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mov [SfxR0+%1*4],ax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro LMSRNc 1 ; Verified.
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xor eax,eax
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mov al,[ebp]
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add eax,eax
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inc ebp
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add eax,[SfxRAMMem]
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mov cl,[ebp]
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mov dword [SfxLastRamAdr],eax
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mov ebx,[eax] ; Read word from ram
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inc ebp
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mov [SfxR0+%1*4],bx ; Write data
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CLRFLAGS
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FXReturn
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%endmacro
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%macro SMSRNc 1 ; Verified.
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xor eax,eax
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mov al,[ebp]
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inc ebp
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add eax,eax
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mov cl,[ebp]
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add eax,[SfxRAMMem]
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mov ebx,[SfxR0+%1*4] ; Read data
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mov dword [SfxLastRamAdr],eax
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inc ebp
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mov [eax],bx ; Write word to ram
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CLRFLAGS
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FXReturn
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%endmacro
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%macro FROMRNd 1 ; V
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FETCHPIPE
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mov esi,SfxR0+%1*4
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inc ebp ; Increase program counter
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call [FxTable+ecx*4]
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mov esi,SfxR0
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FXReturn
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%endmacro
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%macro ORRNc 1 ; V
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4] ; Read
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FETCHPIPE
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or eax,ebx
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inc ebp
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mov [edi],eax ; Write DREG
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro XORRNc 1 ; V
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mov eax,[esi] ; Read Source
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mov ebx,[SfxR0+%1*4] ; Read
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FETCHPIPE
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xor eax,ebx
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inc ebp
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mov [edi],eax ; Write DREG
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro ORIc 1 ; V
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mov eax,[esi] ; Read Source
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FETCHPIPE
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or eax,%1
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inc ebp
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mov [edi],eax ; Write DREG
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro XORIc 1 ; V
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mov eax,[esi] ; Read Source
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FETCHPIPE
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xor eax,%1
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inc ebp
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mov [edi],eax ; Write DREG
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mov [SfxSignZero],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro INCRNc 1 ; Verified
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inc word[SfxR0+%1*4]
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FETCHPIPE
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mov eax,[SfxR0+%1*4] ; Read Source
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mov [SfxSignZero],eax
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CLRFLAGS
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inc ebp
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FXReturn
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%endmacro
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%macro DECRNc 1 ; Verified
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dec word[SfxR0+%1*4]
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FETCHPIPE
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mov eax,[SfxR0+%1*4] ; Read Source
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mov [SfxR0+%1*4],eax
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mov [SfxSignZero],eax
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CLRFLAGS
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inc ebp
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FXReturn
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%endmacro
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%macro IWTRNc 1 ; aka LEA ; Verified.
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mov eax,[ebp]
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mov cl,[ebp+2]
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and eax,0FFFFh
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add ebp,3
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mov [SfxR0+%1*4],eax
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CLRFLAGS
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FXReturn
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%endmacro
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%macro LMRNc 1 ; Verified!
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xor eax,eax
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mov cl,[ebp+2]
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mov ax,[ebp]
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mov ebx,[SfxRAMMem]
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mov [SfxLastRamAdr],eax
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add [SfxLastRamAdr],ebx
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mov dl,[eax+ebx]
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xor eax,1
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add ebp,3
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mov dh,[eax+ebx]
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mov word [SfxR0+%1*4],dx ; Store Word
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CLRFLAGS
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FXReturn
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%endmacro
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%macro SMRNc 1 ; Verified
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mov ebx,[SfxR0+%1*4]
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mov eax,[ebp]
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mov cl,[ebp+2]
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and eax,0FFFFh
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mov dx,bx
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mov ebx,[SfxRAMMem]
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mov [SfxLastRamAdr],eax
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add [SfxLastRamAdr],ebx
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mov [eax+ebx],dl
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xor eax,1
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add ebp,3
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mov [eax+ebx],dh
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CLRFLAGS
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FXReturn
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%endmacro
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