cortex-m-quickstart 0.2.4

A template for building applications for ARM Cortex-M microcontrollers
Documentation 
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//! Prints "Hello, world!" on the OpenOCD console using semihosting
//!
//! ---

#![feature(used)]
#![no_std]

extern crate cortex_m;
extern crate cortex_m_rt;
extern crate cortex_m_semihosting;

use core::fmt::Write;

use cortex_m::asm;
use cortex_m_semihosting::hio;

fn main() {
    let mut stdout = hio::hstdout().unwrap();
    writeln!(stdout, "Hello, world!").unwrap();
}

// As we are not using interrupts, we just register a dummy catch all handler
#[link_section = ".vector_table.interrupts"]
#[used]
static INTERRUPTS: [extern "C" fn(); 240] = [default_handler; 240];

extern "C" fn default_handler() {
    asm::bkpt();
}