'Step until a desired instruction in specific memory range
Usage:
MYNAME "inst1,inst2" (step to next inst in binary)
MYNAME "inst1,inst2" mapname1,mapname2'

def stepuntil(self, *arg):

    (insts, mapname) = normalize_argv(arg, 2)
    if (insts is None):
        self._missing_argument()
    if (not self._is_running()):
        return
    peda.save_user_command('hook-stop')
    msg('Stepping    through,    Ctrl-C    to    stop...')
    result = peda.stepuntil(insts, mapname)
    peda.restore_user_command('hook-stop')
    if result:
        peda.execute('stop')
    return
