LAPIC_SVR
lapic_writereg(LAPIC_SVR, LAPIC_SVR_ENABLE | LAPIC_SPURIOUS_VECTOR);
lapic_writereg(LAPIC_SVR, 0);
i82489_writereg(LAPIC_SVR, LAPIC_SVR_ENABLE | LAPIC_SPURIOUS_VECTOR);
i82489_writereg(LAPIC_SVR, 0);