In <listserv%[email protected]>, on 12/01/2010
at 09:20 AM, Paul Gilmartin <[email protected]> said:
>Were there 7 uncommitted bits in the PSW to save the corresponding
>bits in the instruction address, or was additional information moved
>to Control Registers which then needed to be stored?
No. 8 bits that must be zero.
>Is the only unfinished work the PSW?
Yes.
>Is the PSW present in far more control blocks than the
>registers?
No, just harder to deal with.
--
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)
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html