110 lines
2.3 KiB
C
110 lines
2.3 KiB
C
/* main.c
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This file is part of the "First" CPU simulator project.
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Copyright (c) 2024 Efthymios Kritikos
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gui.h"
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#include "simdata.h"
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#include "stdint.h"
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#include <unistd.h>
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void help(char* progname){
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printf("Usage: %s -i <file> \n", progname);
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}
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int main(int argc, char* argd[] ){
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/// PARSE COMMAND LINE ///
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char *infile = NULL;
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int opt;
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while ((opt = getopt(argc, argd, "hi:")) != -1) {
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switch (opt) {
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case 'h':
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help(argd[0]);
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return 0;
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break;
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case 'i':
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infile=optarg;
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break;
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default:
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help(argd[0]);
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return 1;
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break;
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}
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}
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if (infile==NULL){
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help(argd[0]);
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return 1;
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}
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/// READ ROM FILE ///
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FILE* rom=fopen(infile,"r");
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fseek(rom, 0, SEEK_END);
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if(ftell(rom)!=16777216){
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printf("ERROR: ROM file isn't 16MiB\n");
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return 1;
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}
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fseek(rom, 0, SEEK_SET);
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uint8_t *RAM=malloc(16777216); //Maximum addressable memory
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if(!RAM){
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gui_error("failed to allocate 16MiB of memory for the system ram");
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return 1;
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}
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if(fread(RAM, 16777216, 1, rom)==0){
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printf("ERROR: failed to read input file\n");
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free(RAM);
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return 1;
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}
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fclose(rom);
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/// INITIALISE GUI ///
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if(start_gui()){
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printf("Failed on start_gui()\n");
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free(RAM);
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return 1;
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}
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struct simdata_t *simdata = init_simdata();
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if(!simdata){
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gui_error("failed to initialise simdata");
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free(RAM);
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return 1;
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}
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if(gui_continue_request()){
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end_gui();
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printf("Failed on gui_continue_request()\n");
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free_simdata(simdata);
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free(RAM);
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return 1;
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}
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if(end_gui()){
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printf("Failed on end_gui()\n");
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free_simdata(simdata);
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free(RAM);
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return 1;
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}
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free_simdata(simdata);
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free(RAM);
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return 0;
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}
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