expand stack alignment docs

2023-11-20 12:29:31 +08:00 · 2023-11-20 12:29:31 +08:00 · 63c604e336
commit 63c604e336
parent c91c8cc6c3
1 changed files with 1 additions and 1 deletions
--- a/libcortex_a9/src/lib.rs
+++ b/libcortex_a9/src/lib.rs
@ -66,7 +66,7 @@ macro_rules! interrupt_handler {
                concat!("movtne r1, :upper16:", stringify!($stack1)),
                "mov r0, sp",
                "mov sp, r1",
-                "push {{r0, r1}}",                                      // for stack alignment 
+                "push {{r0, r1}}",                                      // 2 registers are pushed to maintain 8 byte stack alignment 
                concat!("bl ", stringify!($name2)),
                "pop {{r0, r1}}",
                "mov sp, r0",