EXEC2? What processor running EXEC2 didn't at least have pipelining for I-fetch? why weren't you using REXX?
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Tony Harminc <[email protected]> Sent: Thursday, March 7, 2019 2:59 PM To: [email protected] Subject: Re: instruction clock speed On Thu, 7 Mar 2019 at 11:33, Phil Smith III <[email protected]> wrote: > > Anyone remember the old EXEC 2 source (Chris Stephenson), which included > comments like "Do this while R3 settles"? Those days are very long gone! Long gone, but at the same time shows an awareness that the processors of the day were already pipelined to some extent, could suffer from AGI and the like, and generally had diverged in implementation from the conceptual model of instruction execution described in the PofO. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
