Great stuff Chris, thank you! The problem I have had with a lot of things like this is that the PoOp describes the hardware in a vacuum, as though z/OS did not exist. (As it probably should.) It is also "non-judgmental" -- never says "this instruction is basically an antique, or is likely to get you into trouble -- use this other one instead." Then the z/OS manuals describe things using z/OS terminology, and it is hard to pull the whole big picture together: you can use this hardware facility thusly in the z/OS environment. There is some whole addressing mode as I recall that the PoOp spends a bunch of time on but that z/OS does not support, so it is basically useless unless you are running (or writing!) some OS other than z/OS.
This presentation is great! Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Blaicher, Christopher Y. Sent: Thursday, May 31, 2012 9:11 AM To: [email protected] Subject: Re: What is a PC Call? Do a google search on 'PC for dummies MVS' and you should get a link to www.kcats.org/csci/567/ho/pcrtn.pdf This is a great starting point. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN

