diff --git a/MCL86/Core/MCL86_Microcode_Xilinx.coe b/MCL86/Core/MCL86_Microcode_Xilinx_Version_2.coe
similarity index 100%
rename from MCL86/Core/MCL86_Microcode_Xilinx.coe
rename to MCL86/Core/MCL86_Microcode_Xilinx_Version_2.coe
diff --git a/MCL86/Core/Microcode_MCL86.txt b/MCL86/Core/Microcode_MCL86.txt
index 47d11e1..f45a8db 100644
--- a/MCL86/Core/Microcode_MCL86.txt
+++ b/MCL86/Core/Microcode_MCL86.txt
@@ -19,6 +19,9 @@
 // Revision 1.0 1/25/2020
 // Initial revision
 //
+// Revision 2.0 8/20/2022
+// Fixed accidental clearing of prefix override for all string opcodes
+//
 //
 //------------------------------------------------------------------------
 //