I was hoping something came in as an SPE. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
________________________________________ From: IBM Mainframe Assembler List <[email protected]> on behalf of Jon Perryman <[email protected]> Sent: Wednesday, October 23, 2024 1:26 PM To: [email protected] Subject: Re: HLASM Toolkit BXH at front of loop? Caution: This email did not originate from George Mason’s mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. On Wed, 23 Oct 2024 03:44:57 +0000, Seymour J Metz <[email protected]> wrote: >No, that puts the BXH at the end, not at the beginning. Since IBM didn't document your specific use case, the only other possibility is if an undocumented form of DO WHILE=(BXH,R1,R2) exists where the IF / DO condition handles the BXH instruction correctly. I wouldn't hold much hope because it typically requires a CC or comparator. Maybe IBM has a special comparator for instructions that combine branch with other functionality (e.g. BXH).
