126 lines
2.1 KiB
C
126 lines
2.1 KiB
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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static char rcsid[] = "$Header$";
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#define MAXBYTE 24
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#include <stdio.h>
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#include <out.h>
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char hex[] = "0123456789ABCDEF";
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FILE *fp, *fopen();
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char **s;
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int bytes, bytcnt, checksum;
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long pc;
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struct outhead ohead;
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struct outsect sect[MAXSECT];
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main (argc,argv)
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int argc;
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char *argv[];
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{
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if (argc != 2) fatal ("usage: %s filename\n",argv[0]);
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if (! rd_open (*++argv))
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fatal ("can't open %s\n",*argv);
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else {
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s = argv;
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convert ();
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}
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}
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convert ()
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{
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int i;
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rd_ohead(&ohead);
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if (ohead.oh_flags & HF_LINK) {
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fatal("%s contains unresolved references\n",s);
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}
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rd_sect(sect, ohead.oh_nsect);
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for (i = 0; i < ohead.oh_nsect; i++) {
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rd_outsect(i);
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pc = sect[i].os_base;
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while (sect[i].os_size) {
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unsigned int sz = 8096, fl;
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extern char *calloc();
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register char *buf;
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char *pbuf;
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if (sz > sect[i].os_size) sz = sect[i].os_size;
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sect[i].os_size -= sz;
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pbuf = buf = calloc(sz, 1);
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if (fl = sect[i].os_flen) {
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if (fl > sz) fl = sz;
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sect[i].os_flen -= fl;
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rd_emit(buf, (long) fl);
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}
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while (sz > 0) {
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int p = bytcnt = sz < MAXBYTE ? sz : MAXBYTE;
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checksum = 0;
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sz -= p;
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if (pc > 0xffffL)
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S2record (buf);
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else S1record (buf);
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buf += p;
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}
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free(pbuf);
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}
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}
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printf ("S9030000FC\n");
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}
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S2record (buf)
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char *buf;
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{
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printf ("S2");
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bytcnt += 4;
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outbyte (bytcnt);
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outbyte ((int) (pc >> 16));
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outbyte ((int) (pc >> 8));
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outbyte ((int) pc);
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record (buf);
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}
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S1record (buf)
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char *buf;
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{
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printf ("S1");
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bytcnt += 3;
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outbyte (bytcnt);
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outbyte ((int) (pc >> 8));
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outbyte((int) pc);
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record (buf);
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}
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record (buf)
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register char *buf;
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{
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while (bytcnt != 0)
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{
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outbyte (*buf++);
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pc ++;
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}
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outbyte (~checksum);
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putchar ('\n');
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putchar (0);
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putchar (0);
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}
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outbyte (b)
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int b;
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{
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checksum = (checksum + b) & 0377;
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putchar (hex[(b>>4) & 017]);
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putchar (hex[b & 017]);
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-- bytcnt;
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}
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rd_fatal() { fatal("Read error\n"); }
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fatal (s,a)
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{
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printf (s,a);
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exit (-1);
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}
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