/***************************************************************************
 *   Copyright (C) 2004 by Charles Crayne                                  *
 *   chuck@heimdall                                                        *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>

#define MAXOPS 256
#define MAXSYMS 512
#define MAXLINE 132
#define MAXOPNDS 64

  int parseLine();
  void addLabel(char *, int);
  int getLabel(char *label);
  void printLabel();
  int asctoi(char *);
  int byteOperand();
  int wordOperand();
  int evalExpr(char *);
  
  FILE *infp, *outfp, *printfp, *opcodefp;
  struct
  {
    char *opsym;
    int opcode;
    int ilength;
  }
  optbl[MAXOPS];
  struct
  {
    char *lblsym;
    int lbladdr;
  }
  lbltbl[MAXSYMS];
  int opcodeCount = 1, labelCount = 0, inx = 0, items, len, errcnt = 0, defrad = 8, pass = 1;
  int oprndcnt = 0;
  char line[MAXLINE], parse[MAXLINE], *lp;
  char *lbl, *op, *pn, *imm, *tgt, *pg, *tic1, *tic2, *cmt;
  char *oprnds[MAXOPNDS];
  bool loader, entry;