From 5b1f2361f23a9d479004d8cdf063c708ebacf92a Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Thu, 24 Sep 2015 18:20:49 +0200
Subject: [PATCH] Use `println!` to print the `Hello World!

---
 src/lib.rs | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 8be4c8b4..686f2d24 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,23 +19,13 @@
 extern crate rlibc;
 extern crate spin;
 
+#[macro_use]
 mod vga_buffer;
 
 #[no_mangle]
 pub extern fn rust_main() {
     // ATTENTION: we have a very small stack and no guard page
-
-    let hello = b"Hello World!";
-    let color_byte = 0x1f; // white foreground, blue background
-
-    let mut hello_colored = [color_byte; 24];
-    for (i, char_byte) in hello.into_iter().enumerate() {
-        hello_colored[i*2] = *char_byte;
-    }
-
-    // write `Hello World!` to the center of the VGA text buffer
-    let buffer_ptr = (0xb8000 + 1988) as *mut _;
-    unsafe { *buffer_ptr = hello_colored };
+    println!("Hello World{}", "!");
 
     loop{}
 }