revert
Merge remote-tracking branch 'origin/master'
timer_sleep() no longer utilizes busy waiting; expected behavior on alarm_X: all threads call thread_sleep(), none exit (all are blocked)
Merge branch 'master' of https://github.com/cripplet/pintos
attemped solution for timer_interrupt() implementation; does not pass alarm-multiple test
completed part i (alarms)
refactored code
refactored code - notice : alarm-simultaneous does not pass
Merge branch 'master' of https://github.com/cripplet/pintos
Merge remote-tracking branch 'origin/master' into naren
merge minke’s code