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/* Copyright (C) 2007-2012 Tomaz Solc */
/* 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 */
enum referencetype {
undef,
jpdest, /* used as a destination for a long jump */
jrdest, /* used as destination for a short jump */
djdest, /* used in a djnz instruction */
cldest, /* used as a call address */
vrbyte, /* used as an address for 8bit load */
vrword, /* used as an address for 16bit load */
cstadd, /* used as a 16bit immediate value */
cstdfw /* used in a defw directive */
};
struct symbol {
char *name;
int automatic;
int val;
/* 1 if symbol is a label (i.e. is aligned with instructions) */
int label;
/* Any comment that should be printed out before symbol definition */
char *comment;
/* When printing symbol definitions for symbols that have the same
* value, put those with higher weight at the bottom. */
int weight;
/* Length of the data structure the symbol refers to (currently this
* means the length of instruction that follows the label) */
int range;
/* 1 if symbol is defined in a symbol file included by an "include"
* directive */
int included;
struct reference *ref;
struct symbol *prev;
struct symbol *next;
};
struct reference {
int addr;
enum referencetype type;
struct reference *next;
};
/* Maximum number of top level include directives */
#define MAX_INCLUDE_TOP 128
/* Maximum number of nested include directives */
#define MAX_INCLUDE_LEVEL 128
extern struct symbol *symbols;
struct symbol *symbol_find(int addr);
struct symbol *symbol_find_next(int val, struct symbol *cur);
struct symbol *symbol_find_range(int val);
struct symbol *symbol_new(char *name, int val, int weight, int included);
struct symbol *symbol_newref(int addr, int ref, enum referencetype type);
int symbol_setlabel(int val, int range);
void symbol_remove_nonlabels();
int symbol_export(FILE *f);
int symbol_export_nonlabels(FILE *f);
void symbol_export_includes(FILE *f);
int symbol_load_file(char *filename, int level);
int symbol_load_line(char *line, char **name, int *val, int level);
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