To be fair, EX of an MVC does not need as many registers. However, MVCL does padding, which is often convenient.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Robin Vowels <0000054c2a8bb600-dmarc-requ...@listserv.ua.edu> Sent: Thursday, October 31, 2024 9:34 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Bounded string move? 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 2024-11-01 07:18, Charles Mills wrote: > @Kirk: +1 > > @Shmuel: you know that an MVC loop is dramatically faster than MVCL? > > Surprising but true. MVCL handles zero-length moves. MVC never did. MVCL handles variable-length moves, automatically. MVCL is interruptible. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
