From 3163d767dbd691c533d3f6b15bcf6a196bfd32e0 Mon Sep 17 00:00:00 2001
From: Daniel Kirschten <daniel.kirschten@gmx.de>
Date: Sun, 15 Sep 2019 18:00:16 +0200
Subject: [PATCH] Setting a memory cell no longer causes an infinite loop

---
 .../memory/CoreWordAddressableMemory.java        | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/net.mograsim.machine/src/net/mograsim/machine/standard/memory/CoreWordAddressableMemory.java b/net.mograsim.machine/src/net/mograsim/machine/standard/memory/CoreWordAddressableMemory.java
index 6dc5da2d..dcbd25ef 100644
--- a/net.mograsim.machine/src/net/mograsim/machine/standard/memory/CoreWordAddressableMemory.java
+++ b/net.mograsim.machine/src/net/mograsim/machine/standard/memory/CoreWordAddressableMemory.java
@@ -69,15 +69,15 @@ public class CoreWordAddressableMemory extends BasicCoreComponent
 		{
 			BitVector storedData = memory.getCell(addressed);
 			return e -> data.feedSignals(storedData);
-		} else
-		{
-			BitVector transData = data.getValues();
-			return e ->
-			{
-				data.clearSignals();
-				memory.setCell(addressed, transData);
-			};
 		}
+		BitVector transData = data.getValues();
+		if (transData.equals(memory.getCell(addressed)))
+			return null;
+		return e ->
+		{
+			data.clearSignals();
+			memory.setCell(addressed, transData);
+		};
 	}
 
 	@Override
-- 
2.17.1