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xao.c

/* xa65 - 65xx/65816 cross-assembler and utility suite
 *
 * Copyright (C) 1989-1997 André Fachat (a.fachat@physik.tu-chemnitz.de)
 *
 * Options module (handles pass options and writing them out to disk)
 *
 * 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 <string.h>

#include "xah.h"
#include "xar.h"
#include "xa.h"
#include "xat.h"
#include "xao.h"

/*
static Fopt       *olist =NULL;
static int  mlist  =0;
static int  nlist  =0;
*/

/* sets file option after pass 1 */
void set_fopt(int l, signed char *buf, int reallen) {
/*printf("set_fopt(%s, l=%d\n",buf,l);*/
      while(afile->fo.mlist<=afile->fo.nlist) {
        afile->fo.mlist +=5;
        afile->fo.olist = realloc(afile->fo.olist, afile->fo.mlist*sizeof(Fopt));
        if(!afile->fo.olist) {      
          fprintf(stderr, "Fatal: Couldn't alloc memory (%lu bytes) for fopt list!\n",
                                    (unsigned long)(
                              afile->fo.mlist*sizeof(Fopt)));
          exit(1);
        }
      }
      afile->fo.olist[afile->fo.nlist].text=malloc(l);
      if(!afile->fo.olist[afile->fo.nlist].text) {
        fprintf(stderr, "Fatal: Couldn't alloc memory (%d bytes) for fopt!\n",l);
        exit(1);
      }
      memcpy(afile->fo.olist[afile->fo.nlist].text, buf, l);
      afile->fo.olist[afile->fo.nlist++].len = reallen;
}

/* writes file options to a file */
void o_write(FILE *fp) {
      int i,j,l,afl;
      signed char *t;

      for(i=0;i<afile->fo.nlist;i++) {
        l=afile->fo.olist[i].len;
        t=afile->fo.olist[i].text;
/* do not optimize */
        t_p2(t, &l, 1, &afl);
      
        if(l>254) {
          errout(E_OPTLEN);
        } else {
          fputc((l+1)&0xff,fp);
        }
          for(j=0;j<l;j++) { 
          fputc(t[j],fp);
          /*printf("%02x ", t[j]); */
        }
        /*printf("\n");*/
      }
      fputc(0,fp);            /* end option list */

      for(i=0;i<afile->fo.nlist;i++) {
        free(afile->fo.olist[i].text);
      }
      free(afile->fo.olist);
      afile->fo.olist = NULL;
      afile->fo.nlist = 0;
      afile->fo.mlist = 0;
}

size_t o_length(void) {
      int i;
      size_t n = 0;
      for(i=0;i<afile->fo.nlist;i++) {
/*printf("found option: %s, len=%d, n=%d\n", afile->fo.olist[i].text, afile->fo.olist[i].len,n);*/
        n += afile->fo.olist[i].len +1;
      }
      return ++n;
}


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