If you look at some processor tables, some facilities like Move Inverse. were added to one model, skip the next few, then become standard for all later models.
On Mon, Jan 5, 2026 at 5:50 PM Tony Harminc <[email protected]> wrote: > > On Mon, 5 Jan 2026 at 18:33, rpinion865 < > [email protected]> wrote: > > > This in not related to the topic. But it did cause me to notice something > > listed in my copy > > of System/370 Extended Architecture Reference Summary, GX20-0157-2, dated > > February 1989. > > > > "Move-Inverse Facility > > > > The Move Inverse instruction is provided on the 4381 and ES/4381 > > Processors; it is not > > provided on the 3081, 3083, 3084, and 3090 Processor Complexes" > > > It was also an RPQ on some much earlier machines like the 370/168. > > Tony H. > > ---------------------------------------------------------------------- > 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
