Rest of the OpenBSD commits, removes inline assembly from linux/sw_draw.c

2002-05-22 04:24:21 +00:00
parent 61ece9f2d6
commit 2f13e5f8d4
3 changed files with 146 additions and 159 deletions
--- a/zsnes/src/video/sw_draw.asm
+++ b/zsnes/src/video/sw_draw.asm
@@ -0,0 +1,136 @@
+;Copyright (C) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
+;
+;This program is free software; you can redistribute it and/or
+;modify it under the terms of the GNU General Public License
+;as published by the Free Software Foundation; either
+;version 2 of the License, or (at your option) any later
+;version.
+;
+;This program is distributed in the hope that it will be useful,
+;but WITHOUT ANY WARRANTY; without even the implied warranty of
+;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;GNU General Public License for more details.
+;
+;You should have received a copy of the GNU General Public License
+;along with this program; if not, write to the Free Software
+;Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+; This file compiles to zero if not OpenBSD, thus it can be
+; left in the Makefile.
+%include "macros.mac"
+
+ALIGN 32
+
+EXTSYM SurfaceX,SurfaceY
+EXTSYM ScreenPtr,SurfBufD
+EXTSYM pitch
+
+SECTION .text
+
+NEWSYM ClearWin16
+        pushad
+        xor  eax,eax
+        mov  edi, [SurfBufD]
+        xor  ebx,ebx
+.Blank2: 
+        mov  ecx, [SurfaceX]
+        rep stosw
+        mov  edx, [SurfaceX]
+        add  edi, [pitch]
+        shl  edx,1
+        add  ebx,1
+        sub  edi,edx
+        cmp  ebx, [SurfaceY]
+        jne .Blank2
+        popad
+        ret
+
+NEWSYM DrawWin256x224x16
+        pushad
+        push  es
+        mov  ax,ds
+        mov  es,ax
+        xor  eax,eax
+        mov  esi, [ScreenPtr]
+        mov  edi, [SurfBufD]
+.Copying3: 
+        mov  ecx,32
+.CopyLoop: 
+        movq mm0,[esi]
+        movq mm1,[esi+8]
+        movq [edi],mm0
+        movq [edi+8],mm1
+        add  esi,16
+        add  edi,16
+        dec  ecx
+        jnz .CopyLoop
+        inc  eax
+        add  edi, [pitch]
+        sub  edi,512
+        add  esi,64
+        cmp  eax,223
+        jne .Copying3
+        xor  eax,eax
+        mov  ecx,128
+        rep stosd
+        pop  es
+        emms
+        popad
+        ret
+
+NEWSYM DrawWin320x240x16
+        pushad
+        push  es
+        mov  ax,ds
+        mov  es,ax
+        xor  eax,eax
+        xor  ebx,ebx
+        mov  esi, [ScreenPtr]
+        mov  edi, [SurfBufD]
+.Blank1MMX: 
+        mov  ecx,160
+        rep stosd
+        sub  edi,160
+        add  edi, [pitch]
+        add  ebx,1
+        cmp  ebx,8
+        jne .Blank1MMX
+        xor  ebx,ebx
+        pxor mm0,mm0
+.Copying2MMX: 
+        mov  ecx,4
+.MMXLoopA: 
+        movq [edi+0],mm0
+        movq [edi+8],mm0
+        add  edi,16
+        dec  ecx
+        jnz .MMXLoopA
+        mov  ecx,32
+.MMXLoopB: 
+        movq mm1,[esi+0]
+        movq mm2,[esi+8]
+        movq [edi+0],mm1
+        movq [edi+8],mm2
+        add  esi,16
+        add  edi,16
+        dec  ecx
+        jnz .MMXLoopB
+        mov  ecx,4
+.MMXLoopC: 
+        movq [edi+0],mm0
+        movq [edi+8],mm0
+        add  edi,16
+        dec  ecx
+        jnz .MMXLoopC
+        inc  ebx
+        add  edi, [pitch]
+        sub  edi,640
+        add  esi,64
+        cmp  ebx,223
+        jne .Copying2MMX
+        mov  ecx,128
+        rep stosd
+        pop  es
+        emms
+        popad
+        ret