From 5ae04070b4b3e2996ce55ab83239ada0ee10cecd Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 28 Apr 2002 00:18:27 +0000
Subject: [PATCH] only lcd_update() when a key actually was pressed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@288 a1c6a512-1295-4272-9138-f99709370657
---
 uisimulator/app.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/uisimulator/app.c b/uisimulator/app.c
index 9df7863c78..fdef22b6cb 100644
--- a/uisimulator/app.c
+++ b/uisimulator/app.c
@@ -56,6 +56,10 @@ void app_main(void)
   while(1) {
     key = button_get();
 
+    if(!key) {
+      sleep(1);
+      continue;
+    }
     switch(key) {
     case BUTTON_UP:
       if(cursor) {