From 406cd1a3dae9ea01bfd682fd73b6c8a28fbfde4d Mon Sep 17 00:00:00 2001
From: joxe <joxe@23d1a52b-0c3c-0410-b72d-8f29ab48fe35>
Date: Mon, 27 Sep 2010 20:23:35 +0000
Subject: [PATCH] added emulation exception when writing to PxIN - typically a
 bug so exception is default - and only - behavior currently

git-svn-id: https://mspsim.svn.sourceforge.net/svnroot/mspsim/mspsim@763 23d1a52b-0c3c-0410-b72d-8f29ab48fe35
---
 se/sics/mspsim/core/IOPort.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/se/sics/mspsim/core/IOPort.java b/se/sics/mspsim/core/IOPort.java
index 7be596b..1d27b2a 100644
--- a/se/sics/mspsim/core/IOPort.java
+++ b/se/sics/mspsim/core/IOPort.java
@@ -134,6 +134,7 @@ public class IOPort extends IOUnit {
 
     if (iAddress == IN) {
       logw("WARNING: writing to read-only " + getID() + "IN");
+      throw new EmulationException("Writing to read-only " + getID() + "IN");
     } else {
       memory[address] = data & 0xff;
       if (word) {