LAPIC_MEM_MUL
ASSYM(LA_EOI, LAPIC_EOI * LAPIC_MEM_MUL);
ASSYM(LA_ISR, LAPIC_ISR0 * LAPIC_MEM_MUL);
ASSYM(LA_EOI, LAPIC_EOI * LAPIC_MEM_MUL);
ASSYM(LA_ISR, LAPIC_ISR0 * LAPIC_MEM_MUL);
#define LAPIC_MEM_REGION ((LAPIC_EXT_LVT3 + 1) * LAPIC_MEM_MUL)
res = *(volatile uint32_t *)(lapic_map + reg * LAPIC_MEM_MUL);
*(volatile uint32_t *)(lapic_map + reg * LAPIC_MEM_MUL) = val;
*(volatile uint32_t *)(lapic_map + reg * LAPIC_MEM_MUL) = val;