ack/util/ego/ra/makeitems.c
David Given 28d4480f62 It turns out that you can't use freopen() to set binary mode of
stdin/stdout on Windows; so add a new system function called
sys_setbinarymode which does it instead. Then find lots more binary mode
flags which need setting.
2022-07-17 20:47:53 +02:00

81 lines
1.8 KiB
C

/* $Id$ */
/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
/* MAKE ITEMS TABLE
*
* This program is used by the register allocation phase of the optimizer
* to make the file itemtab.h. It reads two files:
* - the em_mnem.h file, containing the definitions of the
* EM mnemonics
* - the item-file, containing tuples:
* (mnemonic, item_type)
* The output (standard output) is a C array.
*/
void error(const char *s)
{
fprintf(stderr,"%s\n",s);
exit(-1);
}
void convert(FILE *mnemfile, FILE *itemfile)
{
char mnem1[20], mnem2[20],def[20],itemtype[20];
int opc,index;
bool newcl;
newcl = true;
printf("struct item_descr itemtab[] = {\n");
for (;;) {
fscanf(mnemfile,"%19s%19s%d",def,mnem1,&opc);
/* read a line like "#define op_aar 1" */
if (feof(mnemfile)) break;
if (strcmp(def,"#define") != 0) {
error("bad mnemonic file, #define expected");
}
if (newcl) {
fscanf(itemfile,"%19s%19s%d",mnem2,itemtype,&index);
/* read a line like "op_loc CONST 4" */
}
if (feof(itemfile) || strcmp(mnem1,mnem2) != 0) {
/* there is no line for this mnemonic, so
* it has no type.
*/
printf("{NO_ITEM,0}, /* %s */\n", mnem1);
newcl = false;
} else {
printf("{%s,%d}, /* %s */\n",itemtype,index, mnem1);
newcl = true;
}
}
printf("};\n");
}
int main(int argc, char *argv[])
{
FILE *f1,*f2;
if (argc != 3) {
error("usage: makeitems mnemfile itemfile");
}
if ((f1 = fopen(argv[1],"rb")) == NULL) {
error("cannot open mnemonic file");
}
if ((f2 = fopen(argv[2],"rb")) == NULL) {
error("cannot open item file");
}
convert(f1,f2);
exit(0);
}