TIMER_LATCH
TIMER_SEL1 | TIMER_LATCH);
TIMER_SEL1 | TIMER_LATCH);
outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);
outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);
outb(IO_TIMER1+TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);