There' also a use where the to register operands are the same odd register.
-- 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 Jonathan Scott <[email protected]> Sent: Wednesday, December 11, 2024 3:47 PM To: [email protected] Subject: Re: BXH & BXLE Register Usage External Message: Use Caution The second BXH example in Appendix A of Principles of Operation shows a case where an odd second operand makes some sense, for a loop with a decreasing index. Jonathan Scott, HLASM IBM Hursley, UK
