sets up the PIC

kernel/arch/idt/idt.c

@@ -37,6 +37,7 @@ void idt_init(void)
 		vectors[vector] = true;
 	}
 
+	// The "m" indicates actual data, not a pointer
 	__asm__ volatile("lidt %0" : : "m"(idtr)); // load the new IDT
 	__asm__ volatile("sti"); // set the interrupt flag
 }