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This commit is contained in:
keie 1985-03-01 10:30:23 +00:00
parent c478b62711
commit 9d9c9ae97b

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mach/pmds/cv/cv.c Normal file
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/*
* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
*
* This product is part of the Amsterdam Compiler Kit.
*
* Permission to use, sell, duplicate or disclose this software must be
* obtained in writing. Requests for such permissions may be sent to
*
* Dr. Andrew S. Tanenbaum
* Wiskundig Seminarium
* Vrije Universiteit
* Postbox 7161
* 1007 MC Amsterdam
* The Netherlands
*
*/
/*
* The assumption is that this program is run on the same machine the
* assembler has run. So the assembler's idea of long fits cv's idea.
* The long's produced in the output file have the m68000 format.
* The idea's of the longs read in can be changed with the following
* flags:
* -v Vax longs
* -p Pdp 11 longs
* -m M68000 longs
*/
#include <stdio.h>
char * prog ;
char flag ;
#define HDR_LENGTH 40
char hdr[HDR_LENGTH] ;
main(argc,argv) char **argv; {
long addr,maxaddr;
short count;
maxaddr=0;
if ( argc>1 && argv[1][0]=='-' ) {
flag=argv[1][1] ;
argc-- ; argv++ ;
}
if (argc != 3) {
fprintf(stderr,"Usage: %s [-[vpm]] VU-a.out pmds-a.out\n",argv[0]);
exit(-1);
}
prog=argv[0] ;
if (freopen(argv[1],"r",stdin)==NULL) {
fprintf(stderr,"%s: ",prog) ;
perror(argv[1]);
exit(-1);
}
if (freopen(argv[2],"w",stdout)==NULL) {
fprintf(stderr,"%s: ",prog) ;
perror(argv[2]);
exit(-1);
}
while ( getaddr(&addr) && getcnt(&count) ) {
fseek(stdout,addr+HDR_LENGTH,0);
while (count--) {
putchar(getchar());
if ( ferror(stdout) ) {
fprintf(stderr,"%s: write error\n",prog) ;
unlink(argv[2]) ; /* remove the output */
exit(2) ;
}
addr++;
}
if (addr>maxaddr)
maxaddr = addr;
}
sethdr(0,0410L) ; /* Magic */
sethdr(8,maxaddr) ;
fseek(stdout,0L,0);
fwrite(hdr,sizeof(hdr),1,stdout);
if ( ferror(stdout) ) {
fprintf(stderr,"%s: write error\n",prog) ;
unlink(argv[2]) ; /* remove the output */
exit(2) ;
}
chmod(argv[2],0755);
return 0;
}
getaddr(p_addr) long *p_addr ; {
char in[4] ;
short out[4] ;
int i ;
switch ( fread(in,1,4,stdin) ) {
case 0 : return 0 ;
case 4 : break ;;
default : fprintf(stderr,"%s: Illegal input format\n",prog) ;
return 0 ;
}
switch ( flag ) {
case 0 : *p_addr = *((long *)in) ;
return 1 ;
case 'v' :
out[0]=in[0] ; out[1]=in[1] ;
out[2]=in[2] ; out[3]=in[3] ;
break ;
case 'm' :
out[0]=in[3] ; out[1]=in[2] ;
out[2]=in[1] ; out[3]=in[0] ;
break ;
case 'p' :
out[0]=in[2] ; out[1]=in[3] ;
out[2]=in[0] ; out[3]=in[1] ;
break ;
default :
fprintf(stderr,"%s: Unknown conversion %c(%o)\n",
prog,flag,flag) ;
exit(-1) ;
}
for ( i=0 ; i<4 ; i++ ) out[i] &= 0xFF ;
*p_addr = 256 * ( 256 * ( 256 * out[3] + out[2] ) + out[1] ) + out[0];
return 1 ;
}
getcnt(p_cnt) unsigned *p_cnt ; {
char in[2] ;
short out[2] ;
int i ;
switch ( fread(in,1,2,stdin) ) {
case 2 : break ;;
default : fprintf(stderr,"%s: Illegal input format\n",prog) ;
return 0 ;
}
switch ( flag ) {
case 0 : *p_cnt = *((short *)in) ;
return 1 ;
case 'v' :
case 'p' :
out[0]=in[0] ; out[1]=in[1] ;
break ;
case 'm' :
out[0]=in[1] ; out[1]=in[0] ;
break ;
default :
fprintf(stderr,"%s: Unknown conversion %c(%o)\n",
prog,flag,flag) ;
exit(-1) ;
}
for ( i=0 ; i<2 ; i++ ) out[i] &= 0xFF ;
*p_cnt = 256 * out[1] + out[0] ;
return 1 ;
}
sethdr(off,val) long val ; {
hdr[off] = val>>24 ;
hdr[off+1] = val>>16 ;
hdr[off+2] = val>>8 ;
hdr[off+3] = val ;
}