Sorry, it appears to operate between doubleword (multiple of 8 byte) boundary to other processors, page 301 on https://www.ibm.com/docs/en/SSQ2R2_15.0.0/com.ibm.tpf.toolkit.hlasm.doc/dz9zr006.pdf
On Fri, Jul 26, 2024 at 4:35 PM Paul Gilmartin <[email protected]> wrote: > > On Fri, 26 Jul 2024 16:03:40 -0500, Mike Schwab wrote: > > >MVC has another exemption. The entire 256 bytes appear to move at > >once. > > > How can you tell? How might this "appear" different from moving > sequentially? Was that true even on the earliest s/360? Is that > to say that the move appears "block concurrent"? > > > ... Vs MVCL appears to move 1 byte at a time with register updates. > > -- > gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
