From 71a85b313509c44502723fd6d123f7bc63af1a8b Mon Sep 17 00:00:00 2001
From: BigEd <ed.spittles@gmail.com>
Date: Mon, 15 Nov 2010 17:28:45 +0000
Subject: [PATCH] small improvement to trigger examples in testprogram

---
 testprogram.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/testprogram.js b/testprogram.js
index 0e01f3a..0174fbe 100644
--- a/testprogram.js
+++ b/testprogram.js
@@ -8,8 +8,16 @@
 //
 testprogramAddress=0x0000;
 
+// we want to auto-clear the console if any output is sent by the program
+var consoleboxStream="";
+
 // demonstrate write hook
-writeTriggers[0x000c]="consolebox.innerHTML = consolebox.innerHTML + String.fromCharCode(d);";
+writeTriggers[0x000c]="consoleboxStream += String.fromCharCode(d);"+
+                      "consolebox.innerHTML = consoleboxStream;";
+
+// demonstrate read hook (not used by this test program)
+readTriggers[0xD011]="((consolegetc==undefined)?0:0xff)";  // return zero until we have a char
+readTriggers[0xD010]="var c=consolegetc; consolegetc=undefined; (c)";
 
 testprogram = [
 	0xa9, 0x00,              // LDA #$00