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