From d1779989ed94851b68a48453659f1a68b4c8ce96 Mon Sep 17 00:00:00 2001
From: lynchaj <86925539+lynchaj@users.noreply.github.com>
Date: Tue, 6 Jul 2021 19:26:01 -0400
Subject: [PATCH] Create button2.asm

---
 Source/Apps/button2.asm | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Source/Apps/button2.asm

diff --git a/Source/Apps/button2.asm b/Source/Apps/button2.asm
new file mode 100644
index 00000000..001f8d48
--- /dev/null
+++ b/Source/Apps/button2.asm
@@ -0,0 +1,19 @@
+; test program for user button on Z80 MBC clock board
+; by Andrew Lynch, 6 Jul 2021
+
+
+  ORG    00100H
+
+MAIN_LOOP:
+
+	IN	A,($70)		    ; READ USER BUTTON STATUS
+	AND	%01000000	    ; REMOVE ALL EXCEPT USER BUTTON (D6)
+	    			    ; 0=PRESSED, 1=NOT PRESSED
+	JR	NZ,MAIN_LOOP	; IF NOT PRESSED TRY AGAIN
+
+	LD	A,%00000011	    ; TURN ON BOTH USER LEDS
+	OUT	($70),A		    ;
+
+    RET
+    
+    end