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; Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
;
; Super FX assembler emulator code
; (c) Copyright 1998, 1999 zsKnight and _Demo_.
;
; 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 TORNb 1 ; V
FETCHPIPE
test dword [SfxB],1
jnz .VersionB
mov edi, SfxR0+%1*4
inc ebp ; Increase program counter
mov eax,ebp
sub eax,[SfxCPB]
mov dword[withr15sk],1
mov [SfxR15],eax
call [FxTableb+ecx*4]
mov edi,SfxR0
ret
.VersionB
mov eax,[esi] ; Read Source
mov dword[withr15sk],1
inc ebp ; Increase program counter
mov [SfxR0+%1*4],eax ; Write
CLRFLAGS
ret
%endmacro
%macro FROMRNb 1 ; V
FETCHPIPE
test dword [SfxB],1
jnz .VersionB
mov esi,SfxR0+%1*4
inc ebp ; Increase program counter
call [FxTable+ecx*4]
mov esi,SfxR0
ret
.VersionB
mov eax,[SfxR0+%1*4] ; Read
inc ebp
mov [edi],eax ; Write Destination
mov [SfxSignZero],eax
shr al,7
mov byte[SfxOverflow],al
CLRFLAGS
ret
%endmacro
%macro TORNc 1 ; V
FETCHPIPE
mov eax,[esi] ; Read Source
inc ebp ; Increase program counter
mov [SfxR0+%1*4],eax ; Write
CLRFLAGS
ret
%endmacro
%macro FROMRNc 1 ; V
FETCHPIPE
mov eax,[SfxR0+%1*4] ; Read
inc ebp
mov [edi],eax ; Write Destination
mov [SfxSignZero],eax
shr al,7
mov byte[SfxOverflow],al
CLRFLAGS
ret
%endmacro
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