TIMER_SEL0
TIMER_SEL0 | TIMER_16BIT | TIMER_RATEGEN);
(TIMER_SEL0 | TIMER_16BIT | TIMER_SWSTROBE));
(TIMER_SEL0 | TIMER_16BIT | TIMER_SWSTROBE));
TIMER_SEL0 | TIMER_RATEGEN | TIMER_16BIT);
outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);
TIMER_SEL0 | TIMER_16BIT | TIMER_RATEGEN);
outb(IO_TIMER1+TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);
outb(IO_TIMER1+TIMER_MODE, TIMER_SEL0 | TIMER_LATCH);