HPET_TIMER0_COMPARE
#define HPET_TIMER1_COMPARE ((0x20 * 1) + HPET_TIMER0_COMPARE)
#define HPET_TIMER2_COMPARE ((0x20 * 2) + HPET_TIMER0_COMPARE)
sc->sc_ioh, HPET_TIMER0_COMPARE);
HPET_TIMER0_COMPARE, sc->sc_save.timers[0].compare);