diff --git a/bootstub/bootstub.s b/bootstub/bootstub.s
index da157c3..579fb99 100644
--- a/bootstub/bootstub.s
+++ b/bootstub/bootstub.s
@@ -28,6 +28,9 @@ _start:
 _loader_size:
 	.word	0
 
+	.arch	armv4t
+	.cpu	arm7tdmi
+
 //-----------------------------------------------------------------
 hook9from7:
 //-----------------------------------------------------------------
@@ -89,7 +92,10 @@ tcmpudisable:
 
 resetcode:
 	.word	0x0c04000c
+
+//-----------------------------------------------------------------
 hook7from9:
+//-----------------------------------------------------------------
 	mov	r12, #0x04000000
 	strb	r12, [r12,#0x208]