1000Hz PIC timer working + IDT dispatch/handler fixes

src/idt/idt.c

@@ -9,6 +9,9 @@ struct idtr idt_reg;
 // Address to our first interrupt handler
 extern char vector_0_handler[];
 
+// Timer ticks
+extern uint64_t ticks;
+
 void idt_set_entry(uint8_t vector, void* handler, uint8_t dpl)
 {
     uint64_t handler_addr = (uint64_t)handler;
@@ -119,6 +122,13 @@ struct cpu_status_t* interrupt_dispatch(struct cpu_status_t* context)
             serial_kputs("kernel: idt: Control Protection Exception!\n");
             break;
 
+        case 32:
+            serial_kputs("Tick!");
+            ticks++;
+            // Send an EOI so that we can continue having interrupts
+            outb(0x20, 0x20);
+            break;
+
         default:
             serial_kputs("kernel: idt: Unexpected interrupt\n");
             break;