1 files changed, 8 insertions, 0 deletions

diff --git a/src/start.s b/src/start.s
index b142397..f6598ce 100644
--- a/src/start.s
+++ b/src/start.s
@@ -10,12 +10,20 @@ _start:
     b halt
 
 // Helper function to clear x1 bytes starting at the x0 memory address.
+.globl memzero
 memzero:
     str xzr, [x0], #8
     subs x1, x1, #8
     b.gt memzero
     ret
 
+// Helper function wait for N cycles before returning.
+.globl delay
+delay:
+    subs x0, x0, #1
+    bne delay
+    ret
+
 master:
     // Clear bss.
     ldr x0, =__bss_start