def main():
parser = ArgumentParser(description="Interpreter for the register machine")
parser.add_argument("infile", type=FileType("rb"), metavar="input", help="input file")
args = parser.parse_args()
cpu = CPU()
cpu.load_file(args.infile)
instr = 0
start = time.time()
while(not cpu.exit):
cpu.next_instruction()
instr += 1
taken = time.time() - start
ips = instr / taken
print("time elapsed: {:.6f} instructions executed: {}".format(taken, instr))
print("ips: {:.0f}".format(ips))
sys.exit(cpu.err)
