X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=plugins%2Fnet.mograsim.plugin.core%2Fsrc%2Fnet%2Fmograsim%2Fplugin%2Ftables%2Fmi%2FActiveInstructionPreviewContentProvider.java;fp=plugins%2Fnet.mograsim.plugin.core%2Fsrc%2Fnet%2Fmograsim%2Fplugin%2Ftables%2Fmi%2FActiveInstructionPreviewContentProvider.java;h=97fbd1917dd759434718175b6587d34147017862;hb=195bead5d9a92d28809137818fbaacc06cf815e3;hp=d3a14ec70d9921e397bda7d2846d197368402072;hpb=327ae273a10d9adc305cf4045322c6107dd70fb4;p=Mograsim.git

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
index d3a14ec7..97fbd191 100644
--- a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
@@ -56,6 +56,7 @@ public class ActiveInstructionPreviewContentProvider implements InstructionTable
 	@Override
 	public void updateElement(int index)
 	{
-		viewer.replace(activeRow, index);
+		if (activeRow != null)
+			viewer.replace(activeRow, index);
 	}
 }