First release of ZSNES sources
This commit is contained in:
teuf
835
zsnes/src/chips/fxemu2.mac
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835
zsnes/src/chips/fxemu2.mac
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@@ -0,0 +1,835 @@
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;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 FETCHPIPE 0
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; mov edx,[SfxPBR]
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; mov edx,[SfxMemTable+edx*4]
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; mov edx,[SfxCPB]
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; mov edx,[SfxR15]
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mov cl,[ebp]
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%endmacro
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%macro UpdateR14 0
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; mov edx,[SfxROMBR]
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; mov edx,[SfxMemTable+edx*4]
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mov eax,[SfxCROM]
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; and dword[SfxR14],0FFFFh
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add eax,[SfxR14]
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mov [SfxRomBuffer],eax
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%endmacro
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%macro UpdateR15 0
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mov ebp,[SfxCPB]
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add ebp,[SfxR15]
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%endmacro
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%macro CLRFLAGS 0
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;and dword [SfxSFR],0FFFFh-0100h-0200h-1000h ; Clear ALT1,ALT2 and B Flags
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; xor ch,ch
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; mov dword [SfxB],0 ; Clear B Flag
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; mov esi,SfxR0
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; mov edi,SfxR0
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%endmacro
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%macro TORN 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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ret
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%endmacro
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%macro WITH 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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ret
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%endmacro
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%macro STWRN 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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ret
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%endmacro
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%macro STBRN 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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ret
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%endmacro
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%macro LDWRN 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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ret
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%endmacro
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%macro LDBRN 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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ret
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%endmacro
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; test byte[SfxPOR],01h
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; jnz .nozerocheck
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; test byte[SfxPOR],02h
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; jz .nodither
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; **** Can pre-calculate [SfxSCBR] << 10 + [sfxramdata]
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; Pre-calculate fxbit values from color register
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%macro drawpix4b 0
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and [eax],edx
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and [eax+16],edx
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xor edx,0FFFFFFFFh
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mov ebx,[fxbit01pcal]
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and ebx,edx
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or [eax], ebx
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and edx,[fxbit23pcal]
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or [eax+16], edx
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%endmacro
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%macro drawpix4bd 0
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and [eax],edx
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and [eax+16],edx
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xor edx,0FFFFFFFFh
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mov ebx,[fxbit45pcal]
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and ebx,edx
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or [eax], ebx
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and edx,[fxbit67pcal]
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or [eax+16], edx
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%endmacro
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%macro drawpix2b 0
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and [eax],edx
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xor edx,0FFFFFFFFh
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and edx,[fxbit01pcal]
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or [eax], edx
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%endmacro
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%macro drawpix2bd 0
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and [eax],edx
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xor edx,0FFFFFFFFh
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and edx,[fxbit45pcal]
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or [eax], edx
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%endmacro
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%macro drawpix8b 0
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and [eax],edx
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and [eax+16],edx
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and [eax+32],edx
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and [eax+48],edx
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xor edx,0FFFFFFFFh
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mov ebx,[fxbit01pcal]
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and ebx,edx
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or [eax], ebx
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mov ebx,[fxbit23pcal]
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and ebx,edx
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or [eax+16], ebx
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mov ebx,[fxbit45pcal]
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and ebx,edx
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or [eax+32], ebx
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and edx,[fxbit67pcal]
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or [eax+48], edx
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%endmacro
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%macro drawpix8bd 0
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and [eax],edx
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and [eax+16],edx
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and [eax+32],edx
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and [eax+48],edx
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xor edx,0FFFFFFFFh
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mov ebx,[fxbit45pcal]
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and ebx,edx
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or [eax], ebx
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mov ebx,[fxbit67pcal]
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and ebx,edx
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or [eax+16], ebx
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mov ebx,[fxbit01pcal]
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and ebx,edx
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or [eax+32], ebx
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and edx,[fxbit23pcal]
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or [eax+48], edx
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%endmacro
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%macro plotb 5
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shl eax,%3
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and ebx,07h
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add ebx,ebx
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add eax,ebx
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add eax,[SCBRrel]
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mov bl,[SfxR1]
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mov edx,[fxxand+ebx*4]
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%2
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%endmacro
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%macro plotbz 5
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shl eax,%3
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and ebx,07h
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add ebx,ebx
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add eax,ebx
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add eax,[SCBRrel]
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mov bl,[SfxR1]
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mov edx,[fxxand+ebx*4]
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test byte[SfxCOLR],%5
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jz .nodraw
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%2
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%endmacro
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%macro plotbd 5
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shl eax,%3
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and ebx,07h
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add ebx,ebx
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add eax,ebx
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add eax,[SCBRrel]
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mov bl,[SfxR1]
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mov edx,[fxxand+ebx*4]
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mov bl,[SfxR1]
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xor bl,[SfxR2]
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test bl,01h
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jz near .nodither4b
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%4
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inc word [SfxR1]
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%1
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.nodither4b
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%2
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%endmacro
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%macro plotbzd 5
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shl eax,%3
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and ebx,07h
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add ebx,ebx
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add eax,ebx
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add eax,[SCBRrel]
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mov bl,[SfxR1]
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mov edx,[fxxand+ebx*4]
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test byte[SfxCOLR],%5
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jz near .nodraw
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mov bl,[SfxR1]
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xor bl,[SfxR2]
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test bl,01h
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jz .nodither4b
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%4
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inc word [SfxR1]
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%1
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.nodither4b
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%2
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%endmacro
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%macro plotlines4b 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 ret, drawpix4b, 5, drawpix4bd, 0Fh
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.nodraw
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inc word [SfxR1]
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ret
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%endmacro
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%macro plotlines4bb 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 FXReturn, drawpix4b, 5, drawpix4bd, 0Fh
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.nodraw
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inc word [SfxR1]
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FXReturn
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%endmacro
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%macro plotlines2b 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 ret, drawpix2b, 4, drawpix2bd, 03h
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.nodraw
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inc word [SfxR1]
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ret
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%endmacro
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%macro plotlines2bb 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 FXReturn, drawpix2b, 4, drawpix2bd, 03h
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.nodraw
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inc word [SfxR1]
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FXReturn
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%endmacro
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%macro plotlines8b 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 ret, drawpix8b, 6, drawpix8bd, 0FFh
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.nodraw
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inc word [SfxR1]
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ret
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%endmacro
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%macro plotlines8bb 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 FXReturn, drawpix8b, 6, drawpix8bd, 0FFh
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.nodraw
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inc word [SfxR1]
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FXReturn
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%endmacro
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%macro plotlines8bl 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 ret, drawpix8b, 6, drawpix8bd, 0Fh
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.nodraw
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inc word [SfxR1]
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ret
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%endmacro
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%macro plotlines8bbl 1
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mov ebx,[SfxR2]
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FETCHPIPE
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mov bh,[SfxR1]
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mov eax,[sfxclineloc]
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inc ebp
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mov eax,[eax+ebx*4]
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cmp eax,0FFFFFFFFh
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je near .nodraw
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%1 FXReturn, drawpix8b, 6, drawpix8bd, 0Fh
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.nodraw
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inc word [SfxR1]
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FXReturn
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%endmacro
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%macro ADDRN 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
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
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||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ADCRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov eax, [esi] ; Read Source
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||||
mov ebx, [SfxR0+%1*4]
|
||||
shr byte[SfxCarry],1
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||||
adc ax,bx
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||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
mov [SfxSignZero],eax
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ADIRN 1 ; V
|
||||
mov eax, [esi] ; Read Source
|
||||
FETCHPIPE
|
||||
add ax,%1
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
mov [SfxSignZero],eax
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ADCIRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov eax, [esi] ; Read Source
|
||||
shr byte[SfxCarry],1
|
||||
adc ax,%1
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
mov [SfxSignZero],eax
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro SUBRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4]
|
||||
FETCHPIPE
|
||||
sub ax,bx
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
xor byte[SfxCarry],1
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro SBCRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4]
|
||||
cmp byte[SfxCarry],1
|
||||
sbb ax,bx
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
xor byte[SfxCarry],1
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro SUBIRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
FETCHPIPE
|
||||
sub ax,%1
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
xor byte[SfxCarry],1
|
||||
inc ebp ; Increase program counter
|
||||
mov [edi],eax ; Write Destination
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro CMPRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4]
|
||||
FETCHPIPE
|
||||
sub ax,bx
|
||||
seto byte[SfxOverflow]
|
||||
setc byte[SfxCarry]
|
||||
xor byte[SfxCarry],1
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
inc ebp ; Increase program counter
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ANDRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4] ; Read RN
|
||||
FETCHPIPE
|
||||
and eax,ebx
|
||||
inc ebp
|
||||
mov dword [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro BICRN 1 ; V
|
||||
mov ebx,[SfxR0+%1*4] ; Read RN
|
||||
mov eax,[esi] ; Read Source
|
||||
xor ebx,0FFFFh
|
||||
FETCHPIPE
|
||||
and eax,ebx
|
||||
inc ebp
|
||||
mov dword [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ANDIRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
FETCHPIPE
|
||||
and eax,%1
|
||||
inc ebp
|
||||
mov dword [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro BICIRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
FETCHPIPE
|
||||
and eax,%1
|
||||
inc ebp
|
||||
mov dword [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro MULTRN 1 ; V
|
||||
mov al,byte [esi] ; Read Source
|
||||
mov bl,byte [SfxR0+%1*4] ; Read RN
|
||||
FETCHPIPE
|
||||
imul bl
|
||||
inc ebp
|
||||
and eax,0FFFFh
|
||||
mov [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro UMULTRN 1 ; V
|
||||
mov al,byte [esi] ; Read Source
|
||||
mov bl,byte [SfxR0+%1*4] ; Read RN
|
||||
FETCHPIPE
|
||||
mul bl
|
||||
inc ebp
|
||||
and eax,0FFFFh
|
||||
mov [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro MULTIRN 1 ; V
|
||||
mov al,byte [esi] ; Read Source
|
||||
mov bl,%1 ; Read RN
|
||||
FETCHPIPE
|
||||
imul bl
|
||||
inc ebp
|
||||
and eax,0FFFFh
|
||||
mov [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro UMULTIRN 1 ; V
|
||||
mov al,byte [esi] ; Read Source
|
||||
mov bl,%1 ; Read RN
|
||||
FETCHPIPE
|
||||
mul bl
|
||||
inc ebp
|
||||
and eax,0FFFFh
|
||||
mov [SfxSignZero],eax
|
||||
mov [edi],eax ; Write Destination
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro LINK 1 ; Verified.
|
||||
mov eax,ebp
|
||||
sub eax,[SfxCPB]
|
||||
add eax,%1
|
||||
FETCHPIPE
|
||||
mov word [SfxR11],ax
|
||||
CLRFLAGS
|
||||
inc ebp
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro JMPRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov eax,[SfxR0+%1*4] ; Read RN
|
||||
mov ebp,[SfxCPB]
|
||||
add ebp,eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro LJMPRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov eax,[SfxR0+%1*4]
|
||||
and eax,07Fh
|
||||
mov byte[SfxPBR],al
|
||||
; mov byte[fxtrace+eax],1
|
||||
mov eax,[SfxMemTable+eax*4]
|
||||
mov [SfxCPB],eax
|
||||
mov ebp,eax
|
||||
add ebp,[esi] ; Read RN
|
||||
mov dword [SfxCacheActive],0
|
||||
push ecx
|
||||
call FxOp02
|
||||
pop ecx
|
||||
dec ebp
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro IBTRN 1 ; V
|
||||
movsx eax,byte[ebp]
|
||||
mov cl,[ebp+1]
|
||||
add ebp,2
|
||||
mov [SfxR0+%1*4],ax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro LMSRN 1 ; Verified.
|
||||
xor eax,eax
|
||||
mov al,[ebp]
|
||||
add eax,eax
|
||||
inc ebp
|
||||
add eax,[SfxRAMMem]
|
||||
mov cl,[ebp]
|
||||
mov dword [SfxLastRamAdr],eax
|
||||
mov ebx,[eax] ; Read word from ram
|
||||
inc ebp
|
||||
mov [SfxR0+%1*4],bx ; Write data
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro SMSRN 1 ; Verified.
|
||||
xor eax,eax
|
||||
mov al,[ebp]
|
||||
inc ebp
|
||||
add eax,eax
|
||||
mov cl,[ebp]
|
||||
add eax,[SfxRAMMem]
|
||||
mov ebx,[SfxR0+%1*4] ; Read data
|
||||
mov dword [SfxLastRamAdr],eax
|
||||
inc ebp
|
||||
mov [eax],bx ; Write word to ram
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro FROMRN 1 ; V
|
||||
FETCHPIPE
|
||||
mov esi,SfxR0+%1*4
|
||||
inc ebp ; Increase program counter
|
||||
call [FxTable+ecx*4]
|
||||
mov esi,SfxR0
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ORRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4] ; Read
|
||||
FETCHPIPE
|
||||
or eax,ebx
|
||||
inc ebp
|
||||
mov [edi],eax ; Write DREG
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro XORRN 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
mov ebx,[SfxR0+%1*4] ; Read
|
||||
FETCHPIPE
|
||||
xor eax,ebx
|
||||
inc ebp
|
||||
mov [edi],eax ; Write DREG
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro ORI 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
FETCHPIPE
|
||||
or eax,%1
|
||||
inc ebp
|
||||
mov [edi],eax ; Write DREG
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro XORI 1 ; V
|
||||
mov eax,[esi] ; Read Source
|
||||
FETCHPIPE
|
||||
xor eax,%1
|
||||
inc ebp
|
||||
mov [edi],eax ; Write DREG
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro INCRN 1 ; Verified
|
||||
inc word[SfxR0+%1*4]
|
||||
FETCHPIPE
|
||||
mov eax,[SfxR0+%1*4] ; Read Source
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
inc ebp
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro DECRN 1 ; Verified
|
||||
dec word[SfxR0+%1*4]
|
||||
FETCHPIPE
|
||||
mov eax,[SfxR0+%1*4] ; Read Source
|
||||
mov [SfxR0+%1*4],eax
|
||||
mov [SfxSignZero],eax
|
||||
CLRFLAGS
|
||||
inc ebp
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro IWTRN 1 ; aka LEA ; Verified.
|
||||
mov eax,[ebp]
|
||||
mov cl,[ebp+2]
|
||||
and eax,0FFFFh
|
||||
add ebp,3
|
||||
mov [SfxR0+%1*4],eax
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro LMRN 1 ; Verified!
|
||||
xor eax,eax
|
||||
mov cl,[ebp+2]
|
||||
mov ax,[ebp]
|
||||
mov ebx,[SfxRAMMem]
|
||||
mov [SfxLastRamAdr],eax
|
||||
add [SfxLastRamAdr],ebx
|
||||
mov dl,[eax+ebx]
|
||||
xor eax,1
|
||||
add ebp,3
|
||||
mov dh,[eax+ebx]
|
||||
mov word [SfxR0+%1*4],dx ; Store Word
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro SMRN 1 ; Verified
|
||||
mov ebx,[SfxR0+%1*4]
|
||||
mov eax,[ebp]
|
||||
mov cl,[ebp+2]
|
||||
and eax,0FFFFh
|
||||
mov dx,bx
|
||||
mov ebx,[SfxRAMMem]
|
||||
mov [SfxLastRamAdr],eax
|
||||
add [SfxLastRamAdr],ebx
|
||||
mov [eax+ebx],dl
|
||||
xor eax,1
|
||||
add ebp,3
|
||||
mov [eax+ebx],dh
|
||||
CLRFLAGS
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
%macro PackEsiEdi 0
|
||||
mov eax,[SfxSREG]
|
||||
shl eax,2
|
||||
add eax,SfxR0
|
||||
mov esi,eax
|
||||
mov eax,[SfxDREG]
|
||||
shl eax,2
|
||||
add eax,SfxR0
|
||||
mov edi,eax
|
||||
mov eax,[SfxRAMBR]
|
||||
shl eax,16
|
||||
add eax,[sfxramdata]
|
||||
mov dword [SfxRAMMem],eax
|
||||
%endmacro
|
||||
|
||||
%macro UnPackEsiEdi 0
|
||||
mov eax,esi
|
||||
sub eax,SfxR0
|
||||
shr eax,2
|
||||
mov [SfxSREG],eax
|
||||
mov eax,edi
|
||||
sub eax,SfxR0
|
||||
shr eax,2
|
||||
mov [SfxDREG],eax
|
||||
%endmacro
|
||||
|
||||
Reference in New Issue
Block a user