The High level Assembler accepts and uses an OPTABLE parm which lets you limit the valid op codes to an architecture level such as XA or 370 (and optionally list the valid OP codes at that level). The Disassembler (ASMDASM) has a comparable ÓPTABLE option which "Specifies the operation code table to be used in disassembling CSECTs." Except the ASMDASM we are using - no version shown, but linked 06.125 WITH Identify data of UK09726 - does not limit the op codes generated, or even check for a valid parameter. Is there a later version which has this function, or am I missing something?
Gene Lynd ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

