62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include "assembler.h"
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char* getoutname(char* fname, int fnamelen) {
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char* outf = (char*)malloc(sizeof(char) * fnamelen + 2);
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strcpy(outf, fname);
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// .hack
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strcpy( (outf + ((fnamelen * sizeof(char)) - (3 * sizeof(char)))), "hack");
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return outf;
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}
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int main(int argc, char* argv[]) {
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if(argc < 2) {
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printf("Usage: %s {input}\n", argv[0]);
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return 1;
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}
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int fnamelen = strlen(argv[1]);
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int invalidext = strcmp(argv[1]+(fnamelen*sizeof(char)-(4*sizeof(char))), ".asm");
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if(invalidext) {
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fprintf(stderr, "Invalid extension (must be named lide Xxx.asm)\n");
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return 1;
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}
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FILE* input = fopen(argv[1], "r");
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if(input == NULL) {
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fprintf(stderr, "%s\n", strerror(errno));
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return errno;
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}
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PARSER* p = mkparser(input);
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parse(p);
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ASSEMBLER* a = mkassembler(p->output);
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free(p);
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// variable substitution
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preprocess(a);
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// actual translation
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translate(a);
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// file output
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char* outf = getoutname(argv[1], fnamelen);
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FILE* output = fopen(outf, "w");
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if(output == NULL) {
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fprintf(stderr, "%s\n", strerror(errno));
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return errno;
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}
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printlns(a->lns, output);
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free(outf);
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freeassembler(a);
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fclose(output);
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return 0;
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}
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