mirror of https://github.com/snes9xgit/snes9x.git
89 lines
2.0 KiB
Plaintext
89 lines
2.0 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 TORNb 1 ; V
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FETCHPIPE
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test dword [SfxB],1
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jnz .VersionB
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mov edi, SfxR0+%1*4
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inc ebp ; Increase program counter
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mov eax,ebp
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sub eax,[SfxCPB]
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mov dword[withr15sk],1
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mov [SfxR15],eax
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call [FxTableb+ecx*4]
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mov edi,SfxR0
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ret
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.VersionB
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mov eax,[esi] ; Read Source
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mov dword[withr15sk],1
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inc ebp ; Increase program counter
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mov [SfxR0+%1*4],eax ; Write
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CLRFLAGS
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ret
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%endmacro
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%macro FROMRNb 1 ; V
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FETCHPIPE
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test dword [SfxB],1
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jnz .VersionB
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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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ret
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.VersionB
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mov eax,[SfxR0+%1*4] ; Read
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inc ebp
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mov [edi],eax ; Write Destination
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mov [SfxSignZero],eax
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shr al,7
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mov byte[SfxOverflow],al
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CLRFLAGS
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ret
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%endmacro
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%macro TORNc 1 ; V
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FETCHPIPE
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mov eax,[esi] ; Read Source
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inc ebp ; Increase program counter
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mov [SfxR0+%1*4],eax ; Write
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CLRFLAGS
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ret
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%endmacro
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%macro FROMRNc 1 ; V
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FETCHPIPE
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mov eax,[SfxR0+%1*4] ; Read
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inc ebp
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mov [edi],eax ; Write Destination
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mov [SfxSignZero],eax
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shr al,7
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mov byte[SfxOverflow],al
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CLRFLAGS
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ret
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%endmacro
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