Add address deref, syntax, and deref sizes

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/main.rs

@@ -44,6 +44,6 @@ fn main() -> Result<()> {
     let mut state = State::new();
     state.load_object(object, 64 * 1024 * 1024)?;
     let status = state.exec()?;
-    println!("exit status: {}", status);
+    println!("exit status: {:#04x}", status);
     Ok(())
 }