#include "types.h"
#include "x86.h"
#include "traps.h"

// I/O Addresses of the two programmable interrupt controllers
#define IO_PIC1         0x20    // Master (IRQs 0-7)
#define IO_PIC2         0xA0    // Slave (IRQs 8-15)

// Don't use the 8259A interrupt controllers.  Xv6 assumes SMP hardware.
void picinit(void) {
    // mask all interrupts
    outb(IO_PIC1 + 1, 0xFF);
    outb(IO_PIC2 + 1, 0xFF);
}