One thing to keep in mind, zOAU and Python run 64bit mode. So, if you are calling from a Cobol/ASM program then you will take that into account.
Regards, Jerry Edgington -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Philippe Leite Sent: Friday, March 6, 2026 9:21 AM To: [email protected] Subject: [EXTERNAL] Re: Compiling C under USS Using ZOAU you can easily call any z/OS program with a single USS command. You can algo create a simple Cobol/ASM program to dynamically allocate (BPXWDYN?) the required files and then call CICS pre-processor Regards, Philippe Leite Em sex., 6 de mar. de 2026, 11:10, Mario Bezzi < [email protected]> escreveu: > Phil, I am sure you know that HLASM may be invoked from USS by using > the as command > > If the program you want to assemble includes EXEC CICS commands, then > you need to preprocess it first, using the CICS translator program DFHEAP1$. > > As far as I know HLASM doesn't provide integration for the CICS > translator, and there is no USS command to invoke it. I wish I was wrong. > > This means to me that you would be responsible of properly > pre-allocating the required DDNAMEs and of invoking it. > > Yes, although I didn't test it, I believe the STEPLIB environment > variable would allow you to find and invoke DFHEAP1$. > > mario > > On 3/5/26 6:45 PM, Phil Smith III wrote: > > Cool, thanks. > > > > I wonder if a STEPLIB will Just Work for assembler, then? We have a > > tiny > bit of CICS stuff and have been compiling it on the MVS side because > we didn't know how to make it work on the USS side. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
