Begin work for exceptions post

src/interrupts/mod.rs

@@ -0,0 +1,41 @@
+mod idt;
+
+lazy_static! {
+    static ref IDT: idt::Idt = {
+        let mut idt = idt::Idt::new();
+
+        idt.set_handler(0, divide_by_zero_handler);
+        idt.set_handler(8, double_fault_handler);
+        idt.set_handler(13, general_protection_fault_handler);
+        idt.set_handler(14, page_fault_handler);
+
+        idt
+    };
+}
+
+pub fn init() {
+    assert_has_not_been_called!();
+
+    unsafe { IDT.load() }
+}
+
+
+pub extern fn divide_by_zero_handler() -> ! {
+    println!("EXCEPTION: DIVIDE BY ZERO");
+    loop {}
+}
+
+pub extern fn double_fault_handler() -> ! {
+    println!("EXCEPTION: DOUBLE FAULT");
+    loop {}
+}
+
+pub extern fn general_protection_fault_handler() -> ! {
+    println!("EXCEPTION: GENERAL PROTECTION FAULT");
+    loop {}
+}
+
+pub extern fn page_fault_handler() -> ! {
+    println!("EXCEPTION: PAGE FAULT");
+    loop {}
+}