Have you looked at the sample program in the Programmer's Guide? https://www.ibm.com/docs/en/hla-and-tf/1.6.0?topic=facility-mhelp-sample-mac ro-trace-dump
Jonathan Scott -----Original Message----- From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> On Behalf Of Joseph Reichman Sent: 10 April 2025 19:36 To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: MHELP usage Hi I am trying values variables in a macro Can someone give an example of MHELP usage Thanks