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/*
* AVR8 emulator
*
* Copyright (C) 2007 Michael Buesch <mb@bu3sch.de>
*
* 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.
*/
#include "emulator/avr8emu.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
static struct avr8emu *emulator;
static void cb_status_message(struct avr8emu *emu, const char *msg)
{
printf("MM %s", msg);
}
static const struct avr8emu_callbacks callbacks = {
.status_message = cb_status_message,
};
static void usage(char **argv)
{
printf("Usage: %s BINARY_AVR_CODE\n", argv[0]);
}
static void signal_handler(int signr)
{
int err;
if (emulator) {
do {
err = avr8emu_poll_status(emulator);
} while (!err);
avr8emu_remove(emulator);
}
exit(1);
}
int main(int argc, char **argv)
{
struct sigaction sa;
const char *filename;
struct avr8emu *emu;
FILE *fd;
long int filesize;
char *bin;
int err;
size_t res;
if (argc != 2) {
usage(argv);
return 1;
}
filename = argv[1];
sa.sa_handler = signal_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
fd = fopen(filename, "r");
if (!fd) {
fprintf(stderr, "Could not open file %s\n", filename);
return 1;
}
err = fseek(fd, 0, SEEK_END);
if (err) {
fprintf(stderr, "Failed to seek in file %s\n", filename);
fclose(fd);
}
filesize = ftell(fd);
err = fseek(fd, 0, SEEK_SET);
if (err) {
fprintf(stderr, "Failed to seek in file %s\n", filename);
fclose(fd);
return 1;
}
bin = malloc(filesize);
if (!bin) {
fprintf(stderr, "Out of memory\n");
fclose(fd);
return 1;
}
res = fread(bin, filesize, 1, fd);
fclose(fd);
if (res != 1) {
fprintf(stderr, "Could not read file (%u)\n", res);
free(bin);
return 1;
}
emu = avr8emu_create(AVR_ATMEGA168, &callbacks);//FIXME
if (!emu) {
free(bin);
return 1;
}
err = avr8emu_initialize(emu, bin, filesize);
if (err) {
fprintf(stderr, "emulator init failed\n");
goto out;
}
err = avr8emu_reset(emu);
if (err) {
fprintf(stderr, "emulator reset failed\n");
goto out;
}
printf("emulator running...\n");
emulator = emu;
while (1) {
avr8emu_poll_messages(emu);
while (!avr8emu_poll_status(emu))
;
}
out:
avr8emu_remove(emu);
free(bin);
}
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