Added nop() function

1 files changed, 5 insertions, 0 deletions

diff --git a/src/asm.rs b/src/asm.rs
index 1de0d32..a70cd93 100644
--- a/src/asm.rs
+++ b/src/asm.rs
@@ -49,3 +49,8 @@ pub unsafe fn wfi() {
         () => {}
     }
 }
+
+/// A no-operation. Useful to stop delay loops being elided.
+pub fn nop() {
+    asm!("nop" :::: "volatile");
+}