Add some Armv8-M assembly routines

Adds access to MSP_NS and the BXNS instruction.
Also adds __dsb which was missing.

Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/asm/lib.rs b/asm/lib.rs
index 50e1db6..93d56fb 100644
--- a/asm/lib.rs
+++ b/asm/lib.rs
@@ -60,6 +60,7 @@ shims! {
     fn __cpsie();
     fn __delay(cyc: u32);
     fn __dmb();
+    fn __dsb();
     fn __isb();
     fn __msp_r() -> u32;
     fn __msp_w(val: u32);
@@ -97,6 +98,9 @@ shims! {
     fn __ttt(target: u32) -> u32;
     fn __tta(target: u32) -> u32;
     fn __ttat(target: u32) -> u32;
+    fn __msp_ns_r() -> u32;
+    fn __msp_ns_w(val: u32);
+    fn __bxns(val: u32);
 }
 
 // Mainline only.