diff --git a/source/delay.s b/source/delay.s
index 27231b6..b3baccd 100644
--- a/source/delay.s
+++ b/source/delay.s
@@ -8,6 +8,10 @@
 
 @ioDelay ( u32 us )
 ioDelay:
+	ldr r1, =0x18000000  @ VRAM
+1:
+	@ Loop doing uncached reads from VRAM to make loop timing more reliable
+	ldr r2, [r1]
 	subs r0, #1
-	bgt ioDelay
+	bgt 1b
 	bx lr