132 lines
2.0 KiB
C
132 lines
2.0 KiB
C
/*
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* Z-80 assembler.
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* Command line processing
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* and main driver.
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*/
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#include "as.h"
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FILE *ifp;
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FILE *ofp;
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FILE *lfp;
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char cb[NCODE];
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char eb[NERR];
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char ib[NINPUT];
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char *cp;
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char *ep;
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char *ip;
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int lflag;
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VALUE laddr;
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int lmode;
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VALUE dot;
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SYM *phash[NHASH];
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SYM *uhash[NHASH];
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int pass;
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int line;
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jmp_buf env;
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main(argc, argv)
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char *argv[];
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{
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register char *ifn;
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register char *p;
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register int i;
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register int c;
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char fn[NFNAME];
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ifn = NULL;
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for (i=1; i<argc; ++i) {
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p = argv[i];
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if (*p == '-') {
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while ((c = *++p) != 0) {
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switch (c) {
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case 'l':
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++lflag;
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break;
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default:
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fprintf(stderr, "Bad option %c\n", c);
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exit(BAD);
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}
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}
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} else if (ifn == NULL)
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ifn = p;
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else {
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fprintf(stderr, "Too many source files\n");
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exit(BAD);
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}
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}
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if (ifn == NULL) {
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fprintf(stderr, "No source file\n");
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exit(BAD);
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}
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if ((ifp=fopen(ifn, "r")) == NULL) {
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fprintf(stderr, "%s: cannot open\n", ifn);
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exit(BAD);
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}
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mkname(fn, ifn, "hex");
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if ((ofp=fopen(fn, "w")) == NULL) {
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fprintf(stderr, "%s: cannot create\n", fn);
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exit(BAD);
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}
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if (lflag != 0) {
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mkname(fn, ifn, "lis");
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if ((lfp=fopen(fn, "w")) == NULL) {
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fprintf(stderr, "%s: cannot create\n", fn);
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exit(BAD);
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}
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}
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syminit();
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for (pass=0; pass<2; ++pass) {
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line = 0;
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dot = 0;
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fseek(ifp, 0L, 0);
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while (fgets(ib, NINPUT, ifp) != NULL) {
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++line;
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cp = &cb[0];
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ep = &eb[0];
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ip = &ib[0];
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if (setjmp(env) == 0)
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asmline();
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if (pass != 0)
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list();
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}
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}
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outeof();
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exit(GOOD);
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}
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/*
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* Make up a file name.
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* The "sfn" is the source file
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* name and "dft" is the desired file
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* type. The finished name is copied
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* into the "dfn" buffer.
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*/
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mkname(dfn, sfn, dft)
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char *dfn;
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char *sfn;
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char *dft;
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{
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register char *p1;
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register char *p2;
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register int c;
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p1 = sfn;
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while (*p1 != 0)
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++p1;
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#ifdef vax
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while (p1!=sfn && p1[-1]!=':' && p1[-1]!=']')
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--p1;
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#else
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while (p1!=sfn && p1[-1]!='/')
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--p1;
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#endif
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p2 = dfn;
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while ((c = *p1++)!=0 && c!='.')
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*p2++ = c;
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*p2++ = '.';
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p1 = dft;
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while (*p2++ = *p1++)
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;
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}
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