turn into a Cargo crate

src/examples/_0_hello.rs

@@ -0,0 +1,28 @@
+//! Prints "Hello, world!" on the OpenOCD console using semihosting
+//!
+//! ```
+//! 
+//! #![feature(used)]
+//! #![no_std]
+//! 
+//! #[macro_use]
+//! extern crate cortex_m;
+//! extern crate cortex_m_rt;
+//! 
+//! use cortex_m::asm;
+//! 
+//! fn main() {
+//!     hprintln!("Hello, world!");
+//! }
+//! 
+//! // As we are not using interrupts, we just register a dummy catch all handler
+//! #[allow(dead_code)]
+//! #[used]
+//! #[link_section = ".rodata.interrupts"]
+//! static INTERRUPTS: [extern "C" fn(); 240] = [default_handler; 240];
+//! 
+//! extern "C" fn default_handler() {
+//!     asm::bkpt();
+//! }
+//! ```
+// Auto-generated. Do not modify.