Implement interrupts

kernel/hal/x86_64/hal.c

@@ -4,8 +4,8 @@
 #include "kprintf.h"
 #include "serial.h"
 #include "gdt.h"
-#include "idt.h"
 #include "acpi.h"
+#include "isr.h"
 
 void hal_init(void) {
   if (!serial_init()) {
@@ -22,6 +22,7 @@ __attribute__((noreturn)) void hal_hang(void) {
 }
 
 void hal_init_withmalloc(void) {
-  acpi_init();
+  /* acpi_init(); */
+  isr_init();
 }