Troubleshooting
Problem
You are getting message ASMA057E - Undefined operation code - DFHFCTSP. This occurs when you use the High Level Assembler (HLASM) to assemble a File Control Table (FCT) for CICS on z/VSE. The name in the message will vary depending on what you are trying to assemble.
Symptom
ASMA057E Undefined operation code - xxxxxxxx
[{"Type":"MASTER","Line of Business":{"code":"LOB70","label":"Z TPS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"ARM Category":[{"code":"a8m0z000000cwhqAAA","label":"Installing Configuring and Upgrading"}],"ARM Case Number":"","Platform":[{"code":"PF038","label":"z\/VSE"}],"Version":"All Versions"}]
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Document Information
Modified date:
08 October 2025
UID
swg21032161