diff --git a/as/test/colors.s b/as/test/colors.s
new file mode 100644
index 0000000..3c705be
--- /dev/null
+++ b/as/test/colors.s
@@ -0,0 +1,13 @@
+;;; Shows some nice colors on the screen
+
+	LDY #$0
+loop:
+	TYA
+	STA $200, Y
+	STA $300, Y
+	STA $400, Y
+	STA $500, Y
+	INY
+	CMP #$ff
+	BCC loop
+	BRK