diff -d -b SMS.orig/Common.h SMS/Common.h
46c46,47
<   register byte I,M,J,K,*P,*T,*R,*C,*Z;
---
>   register byte I,M,J,K,y,*T,*C;
>   PIXEL *R, *P, *Z;
48a50
>   int n,m;
51,52c53,57
<   L=WIDTH*(HEIGHT-192)/2+(WIDTH-256)/2+WIDTH*Y;
<   P=XBuf+L;Z=ZBuf+(L>>3);
---
>   L=WIDTH*(HEIGHT-SIZE*192)/2+(WIDTH-SIZE*256)/2+SIZE*WIDTH*Y;
>   P=XBuf+L;
>   L=WIDTH*(HEIGHT-SIZE*192)/(2*SIZE*SIZE) 
>   	+(WIDTH-SIZE*256)/(2*SIZE)+SIZE*WIDTH*Y/(SIZE*SIZE);
>   Z=ZBuf+(L>>3);
55c60
<   if(!ScreenON) { memset(P,Black,256);memset(ZBuf,0x00,256/8);return; }
---
>   if(!ScreenON) { memset(P,Black,SIZE*256);memset(ZBuf,0x00,256/8);return; }
63c68,69
<   P-=Shift;Z--;
---
>   P-=SIZE*Shift;
>   Z--;
65c71
<   XR=NoRghScroll? 24:255;
---
>   XR=NoRghScroll? 4:255;
92,100c98,109
< 
<     P[0]=R[(L>>28)&0x0F];
<     P[1]=R[(L>>20)&0x0F];
<     P[2]=R[(L>>12)&0x0F];
<     P[3]=R[(L>>4)&0x0F];
<     P[4]=R[(L>>24)&0x0F];
<     P[5]=R[(L>>16)&0x0F];
<     P[6]=R[(L>>8)&0x0F];
<     P[7]=R[L&0x0F];
---
>     for (n = 0; n < SIZE; n++) 
>     	for (m = 0; m < SIZE; m++){
> 	    P[m*WIDTH + SIZE*0+n]=R[(L>>28)&0x0F];
> 	    P[m*WIDTH + SIZE*2+n]=R[(L>>12)&0x0F];
> 	    P[m*WIDTH + SIZE*1+n]=R[(L>>20)&0x0F];
> 	    P[m*WIDTH + SIZE*2+n]=R[(L>>12)&0x0F];
> 	    P[m*WIDTH + SIZE*3+n]=R[(L>>4)&0x0F];
> 	    P[m*WIDTH + SIZE*4+n]=R[(L>>24)&0x0F];
> 	    P[m*WIDTH + SIZE*5+n]=R[(L>>16)&0x0F];
> 	    P[m*WIDTH + SIZE*6+n]=R[(L>>8)&0x0F];
> 	    P[m*WIDTH + SIZE*7+n]=R[L&0x0F];
>     }	
108d116
< 
110c118
<     P+=8;Z++;
---
>     P+=SIZE*8;Z+=1;
119c127,128
<   register byte X,Y,K,*P,*C,*Z,Shift;
---
>   register byte X,Y,K,*C,Shift;
>   PIXEL *P, *Z;
121c130
<   int N;
---
>   int N,n,m;
130c139
<     X=SprX(N);Y=SprY(N)+1;
---
>     X=SprX(N);Y=(SprY(N)+1);
139,140c148,154
<       L=WIDTH*(HEIGHT-192)/2+(WIDTH-256)/2+WIDTH*Y+(X>251? X-256:X);
<       P=XBuf+L;Z=ZBuf+(L>>3);
---
>       L=WIDTH*(HEIGHT-SIZE*192)/2+(WIDTH-SIZE*256)/2+SIZE*WIDTH*Y
>       	+SIZE*(X>251? X-256:X);
>       P=XBuf+L;
>       L=WIDTH*(HEIGHT-SIZE*192)/(2*SIZE*SIZE)
>       	+(WIDTH-SIZE*256)/(2*SIZE)+WIDTH*Y/SIZE
>       	+(X>251? X-256:X);
>       Z=ZBuf+(L>>3);
156,163c170,179
<           if(X&0x80) P[0]=SPal[(L>>28)&0x0F];
<           if(X&0x40) P[1]=SPal[(L>>20)&0x0F];
<           if(X&0x20) P[2]=SPal[(L>>12)&0x0F];
<           if(X&0x10) P[3]=SPal[(L>>4)&0x0F];
<           if(X&0x08) P[4]=SPal[(L>>24)&0x0F];
<           if(X&0x04) P[5]=SPal[(L>>16)&0x0F];
<           if(X&0x02) P[6]=SPal[(L>>8)&0x0F];
<           if(X&0x01) P[7]=SPal[L&0x0F];
---
>          	for (n = 0; n < SIZE; n++) {
>          		for (m = 0; m < SIZE; m++) {
>           		if(X&0x80) P[WIDTH*m+SIZE*0+n]=SPal[(L>>28)&0x0F];
>           		if(X&0x40) P[WIDTH*m+SIZE*1+n]=SPal[(L>>20)&0x0F];
>           		if(X&0x20) P[WIDTH*m+SIZE*2+n]=SPal[(L>>12)&0x0F];
>           		if(X&0x10) P[WIDTH*m+SIZE*3+n]=SPal[(L>>4)&0x0F];
>           		if(X&0x08) P[WIDTH*m+SIZE*4+n]=SPal[(L>>24)&0x0F];
>           		if(X&0x04) P[WIDTH*m+SIZE*5+n]=SPal[(L>>16)&0x0F];
>           		if(X&0x02) P[WIDTH*m+SIZE*6+n]=SPal[(L>>8)&0x0F];
>           		if(X&0x01) P[WIDTH*m+SIZE*7+n]=SPal[L&0x0F];
165c181,183
<         C+=4;P+=WIDTH;Z+=WIDTH/8;
---
>           }
>         }
>         C+=4;P+=SIZE*WIDTH;Z+=WIDTH/(8*SIZE);
176,177c194,196
<   register byte *P,J;
< 
---
>   register byte J;
>   PIXEL *P;
>   int n;
181c200,201
<     P=XBuf+WIDTH*(HEIGHT-192)/2+(WIDTH-256)/2;
---
>     P=XBuf+WIDTH*(HEIGHT-SIZE*192)/2+(WIDTH-SIZE*256)/2;
>     for (n = 0; n < SIZE; n++) {
183c203,205
<       P[0]=P[1]=P[2]=P[3]=P[4]=P[5]=P[6]=P[7]=Black;
---
>     	  P[SIZE*0+n]=P[SIZE*1+n]=P[SIZE*2+n]=P[SIZE*3+n]
>     	  	=P[SIZE*4+n]=P[SIZE*5+n]=P[SIZE*6+n]=P[SIZE*7+n]=Black;
>     }
187,188c209,212
<   if(GameGear) PutImage((WIDTH-160)/2,(HEIGHT-144)/2,160,144);
<   else         PutImage((WIDTH-256)/2,(HEIGHT-192)/2,256,192);
---
>   if(GameGear) PutImage((WIDTH-SIZE*160)/2,(HEIGHT-SIZE*144)/2
>   			,SIZE*160,SIZE*144);
>   else         PutImage((WIDTH-SIZE*256)/2,(HEIGHT-SIZE*192)/2
>   			,SIZE*256,SIZE*192);
Only in SMS/: Common.h.close
Only in SMS/: Common.h.save
Common subdirectories: SMS.orig/MSDOS and SMS/MSDOS
diff -d -b SMS.orig/Makefile SMS/Makefile
38,39c38,39
< DEFINES = -DUNIX -DLSB_FIRST -DDEBUG -DMITSHM -DSOUND
< CFLAGS  = -O2 -I/usr/X11R6/include -L/usr/X11R6/lib ${DEFINES}
---
> DEFINES = -LINUX -DLSB_FIRST -DDEBUG -DMITSHM -DSOUND -DDIRECTCOLOR
> CFLAGS  = -O2 -I/usr/X11R6/include -L/usr/X11R6/lib ${DEFINES} -O3 -fomit-frame-pointer -funroll-loops
diff -d -b SMS.orig/SMS.h SMS/SMS.h
20a21,35
> #define SIZE 2
> 
> #ifdef TRUECOLOR
> #define PIXEL unsigned long
> #define DEPTH 24
> #else
> #ifdef DIRECTCOLOR
> #define PIXEL unsigned short
> #define DEPTH 16
> #else
> #define PIXEL byte
> #define DEPTH 8
> #endif
> #endif
> 
diff -d -b SMS.orig/Unix.c SMS/Unix.c
54,55c54,55
< #define WIDTH  272
< #define HEIGHT 208
---
> #define WIDTH  (272*SIZE)
> #define HEIGHT (208*SIZE)
57c57
< char *Title="MasterGear Unix/X 0.6";
---
> char *Title="MasterGear Unix/X 0.6 ibs";
61,62c61,62
< byte *XBuf,*ZBuf;
< byte Pal[64],XPal[16],SPal[16];
---
> PIXEL *XBuf,*ZBuf;
> PIXEL Pal[64],XPal[16],SPal[16];
86c86
<   byte *P;
---
>   PIXEL *P;
178c178,179
<   if(!(ZBuf=malloc(WIDTH*HEIGHT/8))) return(0);
---
>   /* IAN Insert a factor of 2 here? */
>   if(!(ZBuf=malloc(WIDTH*HEIGHT/(4*SIZE*SIZE)))) return(0);
186c187,188
<       (Dsp,DefaultVisualOfScreen(Scr),8,ZPixmap,NULL,&SHMInfo,WIDTH,HEIGHT);
---
>       		(Dsp,DefaultVisualOfScreen(Scr),
> 			DEPTH,ZPixmap,NULL,&SHMInfo,WIDTH,HEIGHT);
195c197,198
<     XBuf=(byte *)(Img->data=SHMInfo.shmaddr=shmat(SHMInfo.shmid,0,0));
---
>     XBuf=(PIXEL *)(Img->data=
> 		SHMInfo.shmaddr=shmat(SHMInfo.shmid,0,0));
207c210
<     XBuf=(byte *)malloc(sizeof(byte)*HEIGHT*WIDTH);
---
>     XBuf=(PIXEL *)malloc(sizeof(PIXEL)*HEIGHT*WIDTH);
213c216,217
<       (Dsp,DefaultVisualOfScreen(Scr),8,ZPixmap,0,XBuf,WIDTH,HEIGHT,8,0);
---
>       	(Dsp,DefaultVisualOfScreen(Scr),DEPTH,ZPixmap,0,XBuf,
> 				WIDTH,HEIGHT,sizeof(PIXEL)*8,0);