APIC_RDT_CMD2
apic_ioapic_read(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)))
ioapic_read(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)))
ioapic_write(ioapic_ix, APIC_RDT_CMD2 + (2 * (ipin)), value)