In <[EMAIL PROTECTED]>, on 01/21/2008
at 11:10 AM, Paul Gilmartin <[EMAIL PROTECTED]> said:
>I have believed, and other updates to this thread appear to concur, that
>WAIT/POST are older than CS. At some time, then, WAIT/POST code must
>have used some other locking mechanism.
That much is true. OS/360 only supported one MP, and used TS for 65MP.
>So, after CS first became available there may have been some
>interval before it was reliable to use CS to bypass POST.
Neither OS/VS1 nor OS/VS2 R1 (SVS) supported an MP.
>I understand that during a WAIT, bits 1-31 of the ECB hold the address
>of a control block. If that control block resides above the Line,
There's too much code that relies on the existing RB pointers for that to
be plausible.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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