diff 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,*T,*C;
>   PIXEL *R, *P, *Z;
119c120,121
<   register byte X,Y,K,*P,*C,*Z,Shift;
---
>   register byte X,Y,K,*C,Shift;
>   PIXEL *P, *Z;
140c142,143
<       P=XBuf+L;Z=ZBuf+(L>>3);
---
>       P=XBuf+L;
>       Z=ZBuf+(L>>3);
176c179,180
<   register byte *P,J;
---
>   register byte J;
>   PIXEL *P;
Common subdirectories: SMS.orig/MSDOS and SMS/MSDOS
diff 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 SMS.orig/SMS.h SMS/SMS.h
20a21,33
> #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 SMS.orig/Unix.c SMS/Unix.c
57c57
< char *Title="MasterGear Unix/X 0.7";
---
> char *Title="MasterGear Unix/X 0.7 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))) 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);