Merge pull request #224 from gwilymk/print-warnings-for-assembler

Print warnings for assembler

agb/build.rs

@@ -25,5 +25,11 @@ fn main() {
         String::from_utf8_lossy(&out.stderr)
     );
 
+    for warning_line in String::from_utf8_lossy(&out.stderr).split('\n') {
+        if !warning_line.is_empty() {
+            println!("cargo:warning={}", warning_line);
+        }
+    }
+
     println!("cargo:rustc-link-search={}", out_dir);
 }

agb/interrupt_handler.s

@@ -26,10 +26,10 @@ InterruptHandler:
 
     @ call the rust interrupt handler with r0 set to the triggered interrupts
     ldr r1, =__RUST_INTERRUPT_HANDLER
-    push {lr, r2}
+    push {r2, lr}
     mov lr, pc
     bx r1
-    pop {lr, r2}
+    pop {r2, lr}
 
     @ change back to interrupt mode
     mrs r1, cpsr