mirror of
https://github.com/pnx/m16vm
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61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* as.c
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*
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* Copyright (C) 2018-2019 Henrik Hautakoski <henrik@fiktivkod.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "parser.h"
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int usage(char *program) {
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fprintf(stderr, "Usage: %s <inputfile> [ <outputfile ]\n", program);
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return -1;
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}
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int main(int argc, char **argv) {
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FILE *fd_in;
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FILE *fd_out = stdout;
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if (argc < 2)
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return usage(argv[0]);
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fd_in = fopen(argv[1], "r");
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if (fd_in == NULL) {
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perror("Could not open input file");
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return -1;
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}
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// If we have a output file.
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if (argc > 2) {
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fd_out = fopen(argv[2], "w");
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if (fd_out == NULL) {
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perror("Could not open output file");
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fclose(fd_in);
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return -1;
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}
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}
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parse(fd_in, fd_out);
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fclose(fd_in);
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if (fd_out != stdout)
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fclose(fd_out);
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return 0;
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}
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