diff --git a/src/interrupts/mod.rs b/src/interrupts/mod.rs index 4beffbc8..07d19874 100644 --- a/src/interrupts/mod.rs +++ b/src/interrupts/mod.rs @@ -4,7 +4,7 @@ lazy_static! { static ref IDT: idt::Idt = { let mut idt = idt::Idt::new(); - idt.set_handler(14, page_fault_handler); + idt.set_handler(0, divide_by_zero_handler); idt }; @@ -16,7 +16,7 @@ pub fn init() { use vga_buffer::print_error; -extern "C" fn page_fault_handler() -> ! { - unsafe { print_error(format_args!("EXCEPTION: PAGE FAULT")) }; +extern "C" fn divide_by_zero_handler() -> ! { + unsafe { print_error(format_args!("EXCEPTION: DIVIDE BY ZERO")) }; loop {} } diff --git a/src/lib.rs b/src/lib.rs index 56967aa3..7a35129e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -10,6 +10,7 @@ #![feature(lang_items)] #![feature(const_fn, unique)] #![feature(alloc, collections)] +#![feature(asm)] #![no_std] extern crate rlibc; @@ -49,8 +50,12 @@ pub extern "C" fn rust_main(multiboot_information_address: usize) { // initialize our IDT interrupts::init(); - // provoke a page fault inside println - println!("{:?}", unsafe{ *(0xdeadbeaf as *mut u64) = 42 }); + fn divide_by_zero() { + unsafe { asm!("mov dx, 0; div dx" ::: "ax", "dx" : "volatile", "intel") } + } + + // provoke a divide by zero fault inside println + println!("{:?}", divide_by_zero()); println!("It did not crash!"); loop {}