/* xa65 - 65xx/65816 cross-assembler and utility suite
 *
 * Copyright (C) 1989-1997 Andr� Fachat (fachat@web.de)
 *
 * Undefined label tracking module (also see xal.c)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <stdio.h>
#include <stdlib.h>

#include "xad.h"
#include "xau.h"
#include "xah.h"
#include "xal.h"

#undef DEBUG_UNDEF

int u_label(int labnr) {
	int i;
#ifdef DEBUG_UNDEF
printf("u_label: %d\n",labnr);
#endif
	if (!afile->ud.ulist) {
		afile->ud.ulist = malloc(200 * sizeof(int));
		if (afile->ud.ulist)
			afile->ud.um = 200;
	}

	for (i = 0; i < afile->ud.un; i++) {
		if (afile->ud.ulist[i] == labnr)
			return i;
	}
	if (afile->ud.un >= afile->ud.um) {
		afile->ud.um *= 1.5;
		afile->ud.ulist = realloc(afile->ud.ulist, afile->ud.um * sizeof(int));
		if (!afile->ud.ulist) {
			fprintf(stderr, "Panic: No memory!\n");
			exit(1);
		}
	}
	afile->ud.ulist[afile->ud.un] = labnr;
	return afile->ud.un++;
}

void u_write(FILE *fp) {
	int i, d;
	char *s;
	/*printf("u_write: un=%d\n",afile->ud.un);*/
	fputw(afile->ud.un, fp);

	for (i = 0; i < afile->ud.un; i++) {
		l_vget(afile->ud.ulist[i], &d, &s);
		fprintf(fp, "%s", s);
		fputc(0, fp);
	}
	free(afile->ud.ulist);
	afile->ud.ulist = NULL;
	afile->ud.um = afile->ud.un = 0;
}