#!/usr/bin/env python

import subprocess, time

qemu = subprocess.Popen(
	'qemu-system-arm -machine lm3s6965evb -nographic -serial null -semihosting -kernel demo.elf -S'.split(),
	stdin  = subprocess.PIPE,
	stdout = subprocess.PIPE,
	stderr = subprocess.PIPE,
)

qemu.stdin.write('cont\n')

start = time.time();

while 1:
	line = qemu.stderr.readline()
	t = time.time()
	
	if not line:
		break
	
	print '[%11.6f] %s' % (t - start, line.strip())