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/* Main function for gpasm
Copyright (C) 1998 James Bowman
This file is part of gpasm.
gpasm 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, or (at your option)
any later version.
gpasm 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 gpasm; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "stdhdr.h"
#include "gpasm.h"
#include "symbol.h"
#include "opcode.h"
#include "lst.h"
#include "hex.h"
struct gpasm_state state = {
16, /* radix */
inhx8m, /* hex_format */
1, /* case_insensitive */
0 /* quiet */
};
int yyparse(void);
int main( int argc, char *argv[] )
{
int c;
int usage = 0;
/* #defines are case-insensitive */
state.stDefines = push_symbol_table(NULL, 1);
while ((c = getopt(argc, argv, "?a:cd:e:hp:qr:w:v")) != EOF) {
switch (c) {
case '?':
case 'h':
usage = 1;
break;
case 'a':
if (strcasecmp(optarg, "inhx8m") == 0)
state.hex_format = inhx8m;
else if (strcasecmp(optarg, "inhx8s") == 0)
state.hex_format = inhx8s;
else if (strcasecmp(optarg, "inhx32") == 0)
state.hex_format = inhx32;
else {
fprintf(stderr,
"Error: unrecognised hex file format \"%s\"\n",
optarg);
}
break;
case 'c':
state.case_insensitive = 0;
break;
case 'd':
if ((optarg != NULL) && (strlen(optarg) > 0)) {
struct symbol *sym;
char *lhs, *rhs;
lhs = strdup(optarg);
rhs = strchr(lhs, '=');
if (rhs != NULL) {
*rhs = '\0'; /* Terminate the left-hand side */
rhs++; /* right-hand side begins after the '=' */
}
sym = get_symbol(state.stDefines, lhs);
if (sym == NULL)
sym = add_symbol(state.stDefines, lhs);
if (rhs)
annotate_symbol(sym, rhs);
}
break;
case 'p':
select_processor(optarg);
break;
case 'q':
state.quiet = 1;
break;
case 'r':
select_radix(optarg);
break;
case 'v':
fprintf(stderr, "%s\n", GPASM_VERSION_STRING);
exit(0);
}
if (usage)
break;
}
if (optind < argc)
state.srcfilename = argv[optind];
else
usage = 1;
if (usage) {
printf("\n");
printf("usage: gpasm <options> <filename>\n");
printf("Where <options> are:\n");
printf(" -a <fmt> Select hex format inhx8m, inhx8s, inhx32\n");
printf(" -c case sensitive \n");
printf(" -d <sym>=<val> Define symbol with value\n");
printf(" -h Show this usage message \n");
printf(" -p <processor> Select processor\n");
printf(" -q Quiet \n");
printf(" -r <radix> Select radix \n");
printf(" -v Show version \n");
printf("\n");
exit(0);
}
/* Builtins and macros are always case insensitive */
state.stBuiltin = push_symbol_table(NULL, 1);
state.stMacros = push_symbol_table(NULL, 1);
state.stTop =
state.stGlobal = push_symbol_table(NULL, state.case_insensitive);
opcode_init(0);
state.maxram = (MAX_RAM - 1);
open_file(SPECIAL_PATH);
state.pass = 1;
yyparse();
assert(state.pass == 2);
pop_symbol_table(state.stBuiltin);
dump_hex();
/* Maybe produce a symbol table */
if (state.lst.symboltable) {
lst_throw(); /* Start symbol table on a fresh page */
dump_symbol_table(state.stGlobal);
}
/* Finish off the listing */
lst_close();
if (state.num.errors > 0)
return 1;
else
return 0;
}
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