path: root/disass.c

#include <ebs.c>
#include <sys/mman.h>
#include <error.h>
#include <errno.h>
#include <poll.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#define S0(x) ((x) ? (x) : "")
int main (int argc, char ** argv) {
	int r = 0;
	struct ebs ebs;
	ebs_init(&ebs);
	if (argc != 1+1)
		error_at_line(1, 0, __FILE__, __LINE__, "%s program.ebs", S0(argv[0]));
	int pfd = open(argv[1], O_RDONLY | O_CLOEXEC);
	if (pfd == -1)
		error_at_line(2, errno, __FILE__, __LINE__, "open(%s)", argv[1]);
	struct stat statbuf;
	if (fstat(pfd, &statbuf) == -1) {
		error_at_line(0, errno, __FILE__, __LINE__, "fstat(pfd, &statbuf)");
		r = 3;
		goto r;
	}
	if (!(ebs.pm_velikost = statbuf.st_size)) {
		error_at_line(0, errno, __FILE__, __LINE__, "!(ebs.pm_velikost = statbuf.st_size)");
		r = 4;
		goto r;
	}
	if (!(ebs.pm = mmap(NULL, ebs.pm_velikost, PROT_READ, MAP_SHARED, pfd, 0))) {
		error_at_line(0, errno, __FILE__, __LINE__, "!mmap(NULL, ebs.pm_velikost, PROT_READ, MAP_SHARED, pfd, 0)");
		r = 5;
		goto r;
	}
	for (unsigned i = 0; i <= 0xffff; i++) {
		struct inštrukcija š = inštrukcija(&ebs, i);
		if (!š.dobesedno)
			break;
		printf("0x%04x\t%s\t0x%02x\t0x%02x\t0x%02x%02x\n", i, operacija_str[š.operacija], š.vir, š.destinacija, š.dobesedno[0], š.dobesedno[1]);
	}
	r:
	if (ebs.pm && munmap(ebs.pm, ebs.pm_velikost) == -1)
		error_at_line(0, errno, __FILE__, __LINE__, "munmap(ebs.pm, ebs.pm_velikost)");
	close(pfd);
	pfd = -1;
	return r;
}