106 lines
1.4 KiB
C
106 lines
1.4 KiB
C
static char rcsid[] = "$Header$";
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#define MAXBYTE 24
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#include <stdio.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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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 ((fp = fopen (*++argv,"r")) == NULL)
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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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fclose (fp);
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}
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}
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convert ()
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{
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int c;
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do
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{
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pc = getword ();
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pc = (pc << 16) | getword ();
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bytes = getword ();
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while (bytes != 0)
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{
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bytcnt = (bytes < MAXBYTE) ? bytes : MAXBYTE;
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bytes -= bytcnt;
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checksum = 0;
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if (pc > 0xffffL) S2record (); else S1record ();
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}
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c = getc (fp);
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ungetc (c, fp);
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}
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while (c != EOF);
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printf ("S9030000FC\n");
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}
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S2record ()
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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 (pc);
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record ();
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}
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S1record ()
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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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record ();
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}
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record ()
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{
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outbyte (pc << 8);
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outbyte (pc << 16);
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while (bytcnt != 0)
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{
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outbyte (getbyte ());
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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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getword ()
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{
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int c;
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c = getbyte ();
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return ((getbyte () << 8) | c );
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}
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getbyte ()
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{
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int c;
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if ((c = getc (fp)) == EOF) fatal ("end of %s\n",*s);
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return (c);
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}
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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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