From 6a4bddc493edef3e1eefcd21b323409fd4db317f Mon Sep 17 00:00:00 2001
From: Virgil Dupras <hsoft@hardcoded.net>
Date: Fri, 8 Nov 2019 11:45:37 -0500
Subject: [PATCH] ti/lcd: ensure that variables are initialized

---
 kernel/ti/lcd.asm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/ti/lcd.asm b/kernel/ti/lcd.asm
index cd3637d..27eed83 100644
--- a/kernel/ti/lcd.asm
+++ b/kernel/ti/lcd.asm
@@ -19,6 +19,7 @@
 .equ	LCD_CMD_XINC		0x05
 .equ	LCD_CMD_YINC		0x07
 .equ	LCD_CMD_COL		0x20
+.equ	LCD_CMD_ZOFFSET		0x40
 .equ	LCD_CMD_ROW		0x80
 .equ	LCD_CMD_CONTRAST	0xc0
 
@@ -30,6 +31,10 @@
 
 ; *** Code ***
 lcdInit:
+	; Initialize variables
+	xor	a
+	ld	(LCD_CURROW), a
+
 	; Enable the LCD
 	ld	a, LCD_CMD_ENABLE
 	call	lcdWait