ack/mach/proto/ncg/main.c
George Koehler 909b0d5bf3 Add prototypes to functions in subr.c
Put the declarations in "data.h", because that header declares the
types cost_t and token_p.  Also #include <cgg_cg.h> from "data.h" to
get types c3_p and set_p, and guard <cgg_cg.h> against multiple
inclusion.
2017-11-12 16:11:05 -05:00

101 lines
1.8 KiB
C

#ifndef NORCSID
static char rcsid[] = "$Id$";
#endif
#include "param.h"
#include "tables.h"
#include "types.h" /* byte, codegen */
#include "mach.h"
/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*
* Author: Hans van Staveren
*/
char *progname;
extern byte startupcode[]; /* codegen.c */
int maxply=1;
#ifndef NDEBUG
int Debug=0;
char *strtdebug="";
#endif
/* fillem.c */
void in_init(char *);
void in_start(void);
/* subr.c */
void itokcost(void);
main(argc,argv) char **argv; {
register unsigned n;
extern unsigned cc1,cc2,cc3,cc4;
unsigned ggd();
progname = argv[0];
while (--argc && **++argv == '-') {
switch(argv[0][1]) {
#ifndef NDEBUG
case 'd':
if ((Debug = argv[0][2]) != 0) {
Debug -= '0';
if (argv[0][3] == '@') {
Debug = 0;
strtdebug = &argv[0][4];
}
} else
Debug++;
break;
#endif
#ifdef TABLEDEBUG
case 'u':
case 'U':
initlset(argv[0]+1);
break;
#endif
case 'p':
maxply = atoi(argv[0]+2);
break;
case 'w': /* weight percentage for size */
n=atoi(argv[0]+2);
cc1 *= n;
cc2 *= 50;
cc3 *= (100-n);
cc4 *= 50;
n=ggd(cc1,cc2);
cc1 /= n;
cc2 /= n;
n=ggd(cc3,cc4);
cc3 /= n;
cc4 /= n;
break;
default:
#ifdef MACH_OPTIONS
mach_option(argv[0]);
#else
error("Unknown flag %c",argv[0][1]);
#endif
break;
}
}
if (argc > 2)
error("Usage: %s [ EMfile ] [ asfile ]",progname);
in_init(argc >= 1 ? argv[0] : (char *) 0);
out_init(argc >= 2 ? argv[1] : (char *) 0);
readcodebytes();
itokcost();
in_start();
codegen(startupcode,maxply,TRUE,MAXINT,0);
error("Bombed out of codegen");
}
unsigned ggd(a,b) register unsigned a,b; {
register unsigned c;
do {
c = a%b; a=b; b=c;
} while (c!=0);
return(a);
}