Renamed MMX support variable

zsnes/src/cfgload.asm

@@ -22,7 +22,7 @@ EXTSYM JoyXC,JoyYC,LoadDir,LoadDrive,SRAMDrive,mode7tab
 EXTSYM pl1selk,pl1startk,pl1upk,pl2Ak,pl2Bk,pl2Lk,pl2Rk
 EXTSYM pl2Xk,pl2Yk,pl2contrl,pl2downk,pl2leftk,pl2rightk
 EXTSYM pl2selk,pl2startk,pl2upk,DontSavePath
-EXTSYM FPUCopy,Force8b,MusicRelVol,SRAMDir,SoundCompD,SoundQuality
+EXTSYM Force8b,MusicRelVol,SRAMDir,SoundCompD,SoundQuality
 EXTSYM StereoSound,antienab,cvidmode,enterpress,frameskip,guioff
 EXTSYM newengen,per2exec,pl1Ak,pl1Bk,pl1Lk,pl1Rk,pl1Xk,pl1Yk
 EXTSYM pl1contrl,pl1downk,pl1leftk,pl1rightk,scanlines,soundon

zsnes/src/dos/dosintrf.asm

@@ -24,7 +24,6 @@ EXTSYM ccmdline
 EXTSYM InitDir,InitDrive
 EXTSYM DOScreatenewcfg,ExecGUISaveVars
 EXTSYM allocptr
-EXTSYM FPUCopy
 EXTSYM ZOpenFile,ZOpenMode,CurrentHandle,ZFileSeek,ZOpenFileName,ZFileSeekMode
 EXTSYM ZFileSeekPos,ZFileSeekHandle
 EXTSYM ZFileWriteHandle,ZFileWriteSize,ZFileWriteBlock,ZFileWrite

zsnes/src/dos/zloader.c

@@ -31,7 +31,7 @@ extern void displayparams(void);
 extern void makeextension(void);
 
 extern unsigned char Palette0, SPC700sh, OffBy1Line, DSPDisable,
-                     FPUCopy, Force8b, ForcePal, GUIClick, MouseDis,
+                     MMXSupport, Force8b, ForcePal, GUIClick, MouseDis,
                      MusicRelVol, ScreenScale, SoundCompD, SoundQuality,
                      StereoSound, V8Mode, antienab, cvidmode, debugdisble,
                      debugger, enterpress, finterleave, frameskip,
@@ -354,12 +354,12 @@ int pccmdline(void)
         {
           if(nn == 'm')
           {
-            FPUCopy=2;
+            MMXSupport=1;
             pp++;
           }
           else
           {
-            FPUCopy=0;
+            MMXSupport=0;
           }
           break;
         }

zsnes/src/gui/gui.asm

@@ -65,7 +65,7 @@
 %include "macros.mac"
 
 EXTSYM dssel, curblank, vidpastecopyscr, frameskip, newengen, vsyncon, cantinitmodem
-EXTSYM FPUCopy, cvidmode, antienab, smallscreenon, smallscreence,NetQuit
+EXTSYM cvidmode, antienab, smallscreenon, smallscreence,NetQuit
 EXTSYM soundon, StereoSound, SoundCompD, SoundQuality, MusicRelVol,UartType
 EXTSYM endprog, continueprog, spcBuffera, spcRamcmp, cbitmode, makepal
 EXTSYM t1cc, LoadDir, SRAMDir, LoadDrive,SRAMDrive, initsnes, romloadskip
@@ -551,7 +551,7 @@ NEWSYM KeyRewind, dd 0
 NEWSYM ChatNick, times 16 db 0
 NEWSYM KeySlowDown, dd 0
 
-NEWSYM UseCubicSpline, db 1
+NEWSYM MMXSupport, db 1
 
 NEWSYM LargeSoundBuf, db 0
 NEWSYM HighPriority, db 0
@@ -1516,7 +1516,7 @@ NEWSYM StartGUI
     jne .notexttb
     mov byte[Triplebufen],0
 .notexttb
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .2xSaIdis
     cmp byte[newgfx16b],0
     je .2xSaIdis

zsnes/src/gui/guikeys.inc

@@ -833,7 +833,7 @@ GUIOptionKeys:
 .noautoincsave
     cmp dh,'M'
     jne .nommxcopy
-    xor byte[FPUCopy],2
+    xor byte[MMXSupport],1
 .nommxcopy
     cmp dh,'U'
     jne .nousepl34

zsnes/src/gui/guimouse.inc

@@ -1316,19 +1316,6 @@ GUIWinClicked:
 %%noclick
 %endmacro
 
-%macro GUIClickCButtonMMX 3
-    cmp eax,%1+1
-    jl %%noclick
-    cmp edx,%2+3
-    jl %%noclick
-    cmp eax,%1+6
-    jg %%noclick
-    cmp edx,%2+8
-    jg %%noclick
-    xor %3,2
-%%noclick
-%endmacro
-
 %macro GUIClickCButtonAS 3
     cmp eax,%1+1
     jl %%noclick
@@ -2179,7 +2166,7 @@ DisplayGUIOptionClick:
     GUIClickCButton2 11,36,byte[newengen],byte[cfgnewgfx],1
 .invalidng
     GUIClickCButtonAS 11,46,byte[AutoIncSaveSlot]
-    GUIClickCButtonMMX 11,56,byte[FPUCopy]
+    GUIClickCButton 11,56,byte[MMXSupport]
     GUIClickCButtonM 11,66,byte[pl12s34]
 %ifdef __MSDOS__
     GUIClickCButton 11,76,byte[SidewinderFix]

zsnes/src/gui/guiwindp.inc

@@ -1458,7 +1458,7 @@ DisplayGUIOption:
 .nocheckbox2
     GUIDisplayIconWin 4,11,46,[GUITemp]
     mov dword[GUITemp],GUIIconDataCheckBoxUC
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .nocheckbox3
     mov dword[GUITemp],GUIIconDataCheckBoxC
 .nocheckbox3
@@ -1626,7 +1626,7 @@ DisplayGUIVideo:
     jne .notexttb
     mov byte[Triplebufen],0
 .notexttb
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .2xSaIdis
     cmp byte[newgfx16b],0
     je .2xSaIdis

zsnes/src/init.asm

@@ -22,7 +22,7 @@ EXTSYM makesprprtable,romloadskip,start65816,startdebugger,SfxR0
 EXTSYM MovieProcessing
 EXTSYM MovieFileHand,filefound,inittable,SA1inittable
 EXTSYM MessageOn,Msgptr,MsgCount,sndrot,GenerateBank0Table,SnowTimer
-EXTSYM inittableb,inittablec,FPUCopy,newgfx16b,cfgreinittime,EndMessage
+EXTSYM inittableb,inittablec,newgfx16b,cfgreinittime,EndMessage
 EXTSYM Open_File,Read_File,Write_File,Close_File,Output_Text,Get_Key,CNetType
 EXTSYM Delete_File,Get_First_Entry,Get_Next_Entry,Change_Dir,Get_Dir,InitDSP
 EXTSYM Remove_Dir,Change_Single_Dir,Create_Dir,Get_Memfree,Create_File

zsnes/src/linux/copyvwin.asm

@@ -17,7 +17,7 @@
 
 %include "macros.mac"
 
-EXTSYM vesa2selec,vidbuffer,GUIOn,FPUCopy,resolutn,En2xSaI,antienab,scanlines
+EXTSYM vesa2selec,vidbuffer,GUIOn,MMXSupport,resolutn,En2xSaI,antienab,scanlines
 EXTSYM hirestiledat,res512switch,curblank,spritetablea
 EXTSYM lineleft,_2xSaILineW,_2xSaISuperEagleLineW, _2xSaISuper2xSaILineW
 EXTSYM newengen,cfield,HalfTrans
@@ -58,7 +58,7 @@ NEWSYM copy640x480x16bwin
     cmp byte[GUIOn2],1
     je .nointerp
 .yi
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .nommx
     cmp byte[En2xSaI],0
     jne near Process2xSaIwin
@@ -89,7 +89,7 @@ NEWSYM copy640x480x16bwin
     cmp byte[ebx],1
     ja near .yeshiresng
 .ignorehr
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx
 .a
     mov ax,[esi]
@@ -120,7 +120,7 @@ NEWSYM copy640x480x16bwin
     jnz near .loopa
     pop es
     xor byte[res512switch],1
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .mmx2
     ret
 .mmx2
@@ -234,7 +234,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnb
 .ignorehrb
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxsl
 .ab
     mov ax,[esi]
@@ -260,7 +260,7 @@ NEWSYM copy640x480x16bwin
     jnz .loopab
     pop es
     xor byte[res512switch],1
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .yeshiresb
@@ -313,7 +313,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnbh
 .ignorehrbh
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh
     mov ecx,256
 .abh
@@ -346,7 +346,7 @@ NEWSYM copy640x480x16bwin
     dec dl
     jnz near .loopabh
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh
@@ -409,7 +409,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnbh2
 .ignorehrbh2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh2
     mov ecx,256
 .abh2
@@ -446,7 +446,7 @@ NEWSYM copy640x480x16bwin
     dec byte[lineleft]
     jnz near .loopabh2
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh2
@@ -528,7 +528,7 @@ HighResProc:
 .nofielde
     ret
 .hiresmode7
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .yeshiresngmmxmode7
 .a2
     mov ax,[esi]
@@ -587,7 +587,7 @@ HighResProc:
     sub esi,75036*4
     ret
 .hires
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .yeshiresngmmx
 .bng
     mov eax,[esi+75036*4-2]
@@ -1247,7 +1247,7 @@ MMXInterpolwin:
     ret
 
 NEWSYM interpolate640x480x16bwin
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near MMXInterpolwin
 
     mov ebx,hirestiledat+1

zsnes/src/linux/gl_draw.c

@@ -122,7 +122,7 @@ void gl_end()
 extern DWORD AddEndBytes;
 extern DWORD NumBytesPerLine;
 extern unsigned char *WinVidMemStart;
-extern unsigned char FPUCopy;
+extern unsigned char MMXSupport;
 extern unsigned char NGNoTransp;
 extern unsigned char newengen;
 extern void copy640x480x16bwin(void);

zsnes/src/linux/sdlintrf.asm

@@ -32,7 +32,6 @@ EXTSYM allocptr
 EXTSYM putchar
 EXTSYM getchar
 EXTSYM exit
-EXTSYM FPUCopy
 EXTSYM ZOpenFile,ZOpenMode,CurrentHandle,ZFileSeek,ZOpenFileName,ZFileSeekMode
 EXTSYM ZFileSeekPos,ZFileSeekHandle
 EXTSYM ZFileWriteHandle,ZFileWriteSize,ZFileWriteBlock,ZFileWrite

zsnes/src/linux/sw_draw.c

@@ -102,7 +102,7 @@ static void UnlockSurface(void)
 extern DWORD AddEndBytes;
 extern DWORD NumBytesPerLine;
 extern unsigned char *WinVidMemStart;
-extern unsigned char FPUCopy;
+extern unsigned char MMXSupport;
 extern unsigned char NGNoTransp;
 extern unsigned char newengen;
 extern unsigned short resolutn;
@@ -196,7 +196,7 @@ void sw_drawwin()
     if (SurfaceX == 256 && SurfaceY == 224) {
 	switch(BitDepth) {
 	    case 16:
-		if (FPUCopy){
+		if (MMXSupport){
 		    __asm__ __volatile__ (
 		"	pushw %%es\n"					\
 		"	movw %%ds, %%ax\n"				\
@@ -329,7 +329,7 @@ void sw_drawwin()
     } else if (SurfaceX == 320 && SurfaceY == 240) {
 	switch(BitDepth) {
 	    case 16:
-		if (FPUCopy) {
+		if (MMXSupport) {
 		    __asm__ __volatile__ (
 		"	pushw %%es\n"					\
 		"	movw %%ds, %%ax\n"				\

zsnes/src/linux/zloaderw.c

@@ -37,7 +37,7 @@ extern void displayparams(void);
 extern void makeextension(void);
 
 extern unsigned char	Palette0, SPC700sh, OffBy1Line, DSPDisable,
-			FPUCopy, Force8b, ForcePal, ForceNTSC, GUIClick, MouseDis,
+			MMXSupport, Force8b, ForcePal, ForceNTSC, GUIClick, MouseDis,
 			MusicRelVol, ScreenScale, SoundCompD, SoundQuality,
 			StereoSound, V8Mode, antienab, cvidmode, debugdisble,
 			debugger, enterpress, finterleave, frameskip,
@@ -249,10 +249,10 @@ int main (int argc, char *argv[]) {
 
 			case 'o': {
 				if (strcmp(optarg,"m") == 0) {
-					FPUCopy = 2;
+					MMXSupport = 1;
 					pp++;
 				} else {
-					FPUCopy = 0;
+					MMXSupport = 0;
 				}
 				break;
 			}

zsnes/src/ui.asm

@@ -28,7 +28,7 @@ EXTSYM ram7fa,wramdataa
 EXTSYM malloc,free
 EXTSYM StateBackup
 ;EXTSYM OSPort
-EXTSYM ADSRGAINSwitch,FPUCopy,ScreenScale,SoundQuality
+EXTSYM ADSRGAINSwitch,MMXSupport,ScreenScale,SoundQuality
 EXTSYM debugger,pl1contrl,pl2contrl,romtype,smallscreence
 EXTSYM smallscreenon,spcon
 EXTSYM statefileloc,LatestSave,firstsaveinc
@@ -1642,7 +1642,7 @@ NEWSYM MMXCheck
     jz .nommx
 
     ; MMX support
-    mov byte[FPUCopy],0
+    mov byte[MMXSupport],0
     mov eax,1
     CPUID
 
@@ -1653,7 +1653,7 @@ NEWSYM MMXCheck
 
     test edx,1 << 23
     jz .nommx
-    mov byte[FPUCopy],2
+    mov byte[MMXSupport],1
     mov edx,YesMMX
     call PrintStr
 .nommx

zsnes/src/vcache.asm

@@ -895,8 +895,6 @@ NEWSYM docache
     je .skipbgclear
     cmp byte[newengen],1
     jne .skipbgclear
-;    cmp byte[FPUCopy],1
-;    je near ClearBGFPUCopy
     mov edi,[vidbuffer]
     xor eax,eax
     add edi,16
@@ -917,33 +915,6 @@ NEWSYM yesblank
     pop ebx
     ret
 
-NEWSYM ClearBGFPUCopy
-    mov edi,[vidbuffer]
-    xor eax,eax
-    add edi,16
-    mov dl,[resolutn]
-.loopa
-    mov ecx,16
-.TopOfLoop
-    FLDZ
-    FLDZ
-    FISTP QWORD [EDI]
-    FISTP QWORD [EDI+8]
-    ADD EDI,16
-    DEC ECX
-    JNZ .TopOfLoop
-    add edi,32
-    dec dl
-    jnz .loopa
-.skipbgclear
-    xor ecx,ecx
-    pop es
-    pop edx
-    pop edi
-    pop esi
-    pop ebx
-    ret
-
 .Zero dd 0,0
 .Zero2 dd 0,0
 

zsnes/src/video/copyvid.inc

@@ -839,7 +839,7 @@ NEWSYM copymodeq224
     add esi,16+256+32
     mov edi,256
     mov dl,222
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .loopb
 .loopa
     mov ecx,64
@@ -880,7 +880,7 @@ NEWSYM copymodeq240
     add esi,16+256+32
     mov dl,[resolutn]
     sub dl,2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .loopb
 .loopa
     mov ecx,64
@@ -925,7 +925,7 @@ NEWSYM copymodeq256
     mov dl,[resolutn]
     dec dl
     dec dl
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .loopb
 .loopa
     mov ecx,64
@@ -982,10 +982,8 @@ NEWSYM copyvesa2320x240x8b
     mov dl,[resolutn]
     dec dl
     dec dl
-    cmp byte[FPUCopy],1
+    cmp byte[MMXSupport],1
-    je .loopb
+    je near .loopb
-    cmp byte[FPUCopy],2
-    je near .loopc
 .loopa
     mov ecx,64
     rep movsd
@@ -996,14 +994,6 @@ NEWSYM copyvesa2320x240x8b
     pop es
     ret
 .loopb
-    CopyFPU
-    add esi,32
-    add edi,64
-    dec dl
-    jnz near .loopa
-    pop es
-    ret
-.loopc
     mov ecx,16
     MMXStuff
     add esi,32
@@ -2346,10 +2336,8 @@ NEWSYM copyvesa2320x240x16b
     mov dl,[resolutn]
     dec dl
     dec dl
-    cmp byte[FPUCopy],1
+    cmp byte[MMXSupport],1
-    je .loopb
+    je near .loopb
-    cmp byte[FPUCopy],2
-    je near .loopc
 .loopa
     mov ecx,128
     rep movsd
@@ -2360,15 +2348,6 @@ NEWSYM copyvesa2320x240x16b
     pop es
     ret
 .loopb
-    CopyFPU
-    CopyFPU
-    add esi,64
-    add edi,128
-    dec dl
-    jnz near .loopb
-    pop es
-    ret
-.loopc
     mov ecx,32
     MMXStuff
     add esi,64
@@ -2612,7 +2591,7 @@ NEWSYM ConvertToAFormat
     mov dl,[resolutn]
     dec dl
     dec dl
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxconv
 .crgbloop
     mov ecx,128
@@ -2714,7 +2693,7 @@ NEWSYM copyvesa2320x480x16b
     je near .quartscanlines
 .loopa
     mov ecx,128
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx
     rep movsd
     sub esi,256*2
@@ -2728,7 +2707,7 @@ NEWSYM copyvesa2320x480x16b
     dec dl
     jnz .loopa
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .mmx2
     ret
 .mmx2
@@ -2762,7 +2741,7 @@ NEWSYM copyvesa2320x480x16b
 .scanlines
 .loopab
     mov ecx,128
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxsl
 .ab
     mov eax,[esi]
@@ -2778,7 +2757,7 @@ NEWSYM copyvesa2320x480x16b
     dec dl
     jnz .loopab
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxsl
@@ -2796,7 +2775,7 @@ NEWSYM copyvesa2320x480x16b
 
 .halfscanlines
 .loopabh
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh
     mov ecx,128
 .abh
@@ -2825,7 +2804,7 @@ NEWSYM copyvesa2320x480x16b
     dec dl
     jnz .loopabh
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh
@@ -2871,7 +2850,7 @@ NEWSYM copyvesa2320x480x16b
 .quartscanlines
     mov [lineleft],dl
 .loopabh2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh2
     mov ecx,128
 .abh2
@@ -2904,7 +2883,7 @@ NEWSYM copyvesa2320x480x16b
     dec byte[lineleft]
     jnz near .loopabh2
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh2
@@ -3438,7 +3417,7 @@ NEWSYM copyvesa2640x480x16b
     cmp byte[GUIOn],1
     je .nointerp
 .yi
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .nommx
     cmp byte[newgfx16b],0
     je .nommx
@@ -3472,7 +3451,7 @@ NEWSYM copyvesa2640x480x16b
     cmp byte[ebx],1
     ja near .yeshiresng
 .ignorehr
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx
 .a
     mov ax,[esi]
@@ -3506,7 +3485,7 @@ NEWSYM copyvesa2640x480x16b
     je .ignorehr2
     xor byte[res512switch],1
 .ignorehr2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .mmx2
     ret
 .mmx2
@@ -3596,7 +3575,7 @@ NEWSYM copyvesa2640x480x16b
     call HighResProc
     jmp .returnb
 .ignorehrb
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxsl
 .ab
     mov ax,[esi]
@@ -3618,7 +3597,7 @@ NEWSYM copyvesa2640x480x16b
     je .ignorehr2b
     xor byte[res512switch],1
 .ignorehr2b
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .yeshiresb
@@ -3671,7 +3650,7 @@ NEWSYM copyvesa2640x480x16b
     call HighResProc
     jmp .returnbh
 .ignorehrbh
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh
     mov ecx,256
 .abh
@@ -3704,7 +3683,7 @@ NEWSYM copyvesa2640x480x16b
     dec dl
     jnz near .loopabh
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh
@@ -3767,7 +3746,7 @@ NEWSYM copyvesa2640x480x16b
     call HighResProc
     jmp .returnbh2
 .ignorehrbh2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh2
     mov ecx,256
 .abh2
@@ -3804,7 +3783,7 @@ NEWSYM copyvesa2640x480x16b
     dec byte[lineleft]
     jnz near .loopabh2
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh2
@@ -3886,7 +3865,7 @@ HighResProc:
 .nofielde
     ret
 .hiresmode7
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .yeshiresngmmxmode7
 .a2
     mov ax,[esi]
@@ -3945,7 +3924,7 @@ HighResProc:
     sub esi,75036*4
     ret
 .hires
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .yeshiresngmmx
 .bng
     mov eax,[esi+75036*4-2]
@@ -4357,7 +4336,7 @@ NEWSYM smallscreen640x480x16b
     je .nointerpolat
     cmp byte[antienab],1
     jne .nointerpolat
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near MMXInterpolFS
 .nointerpolat
     push es
@@ -4982,9 +4961,9 @@ NEWSYM InterPtr, resd 1
 SECTION .text
 
 NEWSYM interpolate640x480x16b
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near MMXInterpol
-    mov byte[FPUCopy],0
+    mov byte[MMXSupport],0
 
     mov ebx,hirestiledat+1
     cmp byte[GUIOn],1

zsnes/src/video/makev16b.asm

@@ -802,8 +802,6 @@ NEWSYM clearback16b
     shl eax,16
     mov ax,bx
     mov edi,[curvidoffset]
-;    cmp byte[FPUCopy],1
-;    je .dofpuclear
     mov ecx,128
     rep stosd
     xor eax,eax
@@ -813,17 +811,10 @@ NEWSYM clearback16b
     mov ax,[pal16b]
     shl eax,16
     mov ax,[pal16b]
-;    cmp byte[FPUCopy],1
-;    je .dofpuclear
     mov ecx,128
     rep stosd
     xor eax,eax
     ret
-.dofpuclear
-    mov ecx,32
-    call FPUZero
-    xor eax,eax
-    ret
 
 ;*******************************************************
 ; Set palette 16bit

zsnes/src/video/makev16t.asm

@@ -19,7 +19,7 @@
 
 EXTSYM cwinptr,dualstartprocess,dualwinbg,dualwinsp,dwinptrproc,pwinbgenab
 EXTSYM pwinbgtype,pwinspenab,pwinsptype,winbgdata,winlogicb,winonbtype
-EXTSYM winonstype,winspdata,interlval,FPUCopy
+EXTSYM winonstype,winspdata,interlval,MMXSupport
 EXTSYM bg1scrolx,bg1scroly,curmosaicsz,curypos,drawmode716t,makewindow
 EXTSYM mode7set,mosaicon,mosaicsz,scrnon,winbg1en,winenabm
 EXTSYM drawmode716textbg,drawmode716textbg2
@@ -1469,7 +1469,7 @@ NEWSYM clearback16bts
     mov edi,[curvidoffset]
     or eax,eax
     jz near clearback16bts0.clearing
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .dommxclear
     mov ecx,128
     rep stosd
@@ -1540,7 +1540,7 @@ NEWSYM clearback16bts0b
     mov edi,[curvidoffset]
     or eax,eax
     jz near clearback16bts0.clearing
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .dommxclear
     mov ecx,128
     rep stosd
@@ -1574,7 +1574,7 @@ NEWSYM clearback16bts0
     jnz .notnotransp
     mov byte[DoTransp],1
 .notnotransp
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .dommxclear
     mov ecx,128
     rep stosd
@@ -2036,7 +2036,7 @@ NEWSYM clearback16t
     xor eax,eax
     ret
 .subcopy
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .dommxcopy
     mov ecx,128
     xor ebx,ebx
@@ -2068,7 +2068,7 @@ NEWSYM clearback16t
     mov ax,[pal16b]
     shl eax,16
     mov ax,[pal16b]
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .dommxclear
     rep stosd
     xor eax,eax

zsnes/src/video/newgfx16.asm

@@ -63,7 +63,7 @@ EXTSYM ngwinptr,objwlrpos,objwen,objclineptr,CSprWinPtr
 EXTSYM BuildWindow2    
 EXTSYM NGNumSpr
 EXTSYM fulladdtab
-EXTSYM FPUCopy,bgtxadd2
+EXTSYM MMXSupport,bgtxadd2
 
 NEWSYM NewGfx16AsmStart
 
@@ -2773,7 +2773,7 @@ ProcessTransparencies:
     je .yestransp
     ret
 .yestransp
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near ProcessTransparenciesMMX
     mov esi,[vidbuffer]
     add esi,16*2+288*2

zsnes/src/video/procvid.asm

@@ -28,7 +28,7 @@ EXTSYM vesa2_clbit,vesa2_gpos,vesa2_rpos,vesa2red10,vesa2selec,vidbuffer
 EXTSYM vidbufferm,vram,vsyncon,vbufdptr,KeyStateSelct,forceblnk,soundon
 EXTSYM Open_File,Read_File,Close_File,Create_File,Write_File,Get_File_Date
 EXTSYM Triplebufen,makepal,changepal,saveselectpal,displayfpspal,superscopepal
-EXTSYM DrawScreen
+EXTSYM DrawScreen,MMXSupport
 EXTSYM Get_MouseData,Get_MousePositionDisplacement
 EXTSYM GUIEnableTransp
 EXTSYM GUIFontData
@@ -116,8 +116,6 @@ NEWSYM FPUZero
 .Zero dd 0,0
 .Zero2 dd 0,0
 
-NEWSYM FPUCopy, db 0
-
 ;*******************************************************
 ; ShowVideo                   Processes & displays video
 ;*******************************************************

zsnes/src/win/copyvwin.asm

@@ -17,7 +17,7 @@
 
 %include "macros.mac"
 
-EXTSYM vesa2selec,vidbuffer,GUIOn,FPUCopy,resolutn,En2xSaI,antienab,scanlines
+EXTSYM vesa2selec,vidbuffer,GUIOn,MMXSupport,resolutn,En2xSaI,antienab,scanlines
 EXTSYM hirestiledat,res512switch,curblank,spritetablea
 EXTSYM lineleft,_2xSaILineW,_2xSaISuperEagleLineW, _2xSaISuper2xSaILineW
 EXTSYM newengen,cfield,HalfTrans
@@ -60,7 +60,7 @@ NEWSYM copy640x480x16bwin
     cmp byte[GUIOn2],1
     je .nointerp
 .yi
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     jne .nommx
     cmp byte[En2xSaI],0
     jne near Process2xSaIwin
@@ -91,7 +91,7 @@ NEWSYM copy640x480x16bwin
     cmp byte[ebx],1
     ja near .yeshiresng
 .ignorehr
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx
 .a
     mov ax,[esi]
@@ -122,7 +122,7 @@ NEWSYM copy640x480x16bwin
     jnz near .loopa
     pop es
     xor byte[res512switch],1
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .mmx2
     ret
 .mmx2
@@ -236,7 +236,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnb
 .ignorehrb
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxsl
 .ab
     mov ax,[esi]
@@ -262,7 +262,7 @@ NEWSYM copy640x480x16bwin
     jnz .loopab
     pop es
     xor byte[res512switch],1
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .yeshiresb
@@ -315,7 +315,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnbh
 .ignorehrbh
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh
     mov ecx,256
 .abh
@@ -348,7 +348,7 @@ NEWSYM copy640x480x16bwin
     dec dl
     jnz near .loopabh
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh
@@ -411,7 +411,7 @@ NEWSYM copy640x480x16bwin
     call HighResProc
     jmp .returnbh2
 .ignorehrbh2
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmxslh2
     mov ecx,256
 .abh2
@@ -448,7 +448,7 @@ NEWSYM copy640x480x16bwin
     dec byte[lineleft]
     jnz near .loopabh2
     pop es
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .mmx2
     ret
 .mmxslh2
@@ -530,7 +530,7 @@ HighResProc:
 .nofielde
     ret
 .hiresmode7
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je .yeshiresngmmxmode7
 .a2
     mov ax,[esi]
@@ -589,7 +589,7 @@ HighResProc:
     sub esi,75036*4
     ret
 .hires
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near .yeshiresngmmx
 .bng
     mov eax,[esi+75036*4-2]
@@ -1249,7 +1249,7 @@ MMXInterpolwin:
     ret
 
 NEWSYM interpolate640x480x16bwin
-    cmp byte[FPUCopy],2
+    cmp byte[MMXSupport],1
     je near MMXInterpolwin
 
     mov ebx,hirestiledat+1

zsnes/src/win/winintrf.asm

@@ -32,7 +32,6 @@ EXTSYM allocptr
 extsym putchar
 EXTSYM getch
 EXTSYM exit
-EXTSYM FPUCopy
 EXTSYM ZOpenFile,ZOpenMode,CurrentHandle,ZFileSeek,ZOpenFileName,ZFileSeekMode
 EXTSYM ZFileSeekPos,ZFileSeekHandle
 EXTSYM ZFileWriteHandle,ZFileWriteSize,ZFileWriteBlock,ZFileWrite

zsnes/src/win/winlink.cpp

@@ -1842,7 +1842,7 @@ void CheckTimers(void)
    }
 }
 
-extern "C" BYTE FPUCopy;
+extern unsigned char MMXSupport;
 
 void UpdateVFrame(void)
 {
@@ -1892,7 +1892,7 @@ void UpdateVFrame(void)
       int buffer_ptr = (int)&Buffer[0];
 
       if (T36HZEnabled == 1)
-         if (FPUCopy == 2)
+         if (MMXSupport == 1)
             _asm
             {
                mov edi,buffer_ptr
@@ -1920,7 +1920,7 @@ _blank_top:
                jne _blank_top
             }
       else
-         if (FPUCopy == 2)
+         if (MMXSupport == 1)
             _asm
             {
                mov esi,DSPBuffer1
@@ -1979,7 +1979,7 @@ extern DWORD AddEndBytes;
 extern DWORD NumBytesPerLine;
 extern unsigned char * WinVidMemStart;
 extern void copy640x480x16bwin(void);
-extern unsigned char FPUCopy;
+extern unsigned char MMXSupport;
 extern unsigned char NGNoTransp;
 extern unsigned char newengen;
 
@@ -2080,7 +2080,7 @@ void drawscreenwin(void)
       switch (BitDepth)
       {
          case 16:
-             if (FPUCopy == 2) {
+             if (MMXSupport == 1) {
                   _asm {
                      push es
                      mov ax,ds
@@ -2208,7 +2208,7 @@ void drawscreenwin(void)
       switch (BitDepth)
       {
          case 16:
-             if (FPUCopy == 2) {
+             if (MMXSupport == 1) {
                   _asm {
                      push es
                      mov ax,ds

zsnes/src/win/zloaderw.c

@@ -32,7 +32,7 @@ extern void displayparams(void);
 extern void makeextension(void);
 
 extern unsigned char Palette0, SPC700sh, OffBy1Line, DSPDisable,
-                     FPUCopy, Force8b, ForcePal, GUIClick, MouseDis,
+                     MMXSupport, Force8b, ForcePal, GUIClick, MouseDis,
                      MusicRelVol, ScreenScale, SoundCompD, SoundQuality,
                      StereoSound, V8Mode, antienab, cvidmode, debugdisble,
                      debugger, enterpress, finterleave, frameskip,
@@ -483,12 +483,12 @@ int pccmdline(void)
         {
           if(nn == 'm')
           {
-            FPUCopy=2;
+            MMXSupport=1;
             pp++;
           }
           else
           {
-            FPUCopy=0;
+            MMXSupport=0;
           }
           break;
         }