Congratulations; you've invented OS/VS1. I'd also like to see that for 
DSORG=PO, with ACB-based equivalents to BLDL, FIND and STOW.


--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3

________________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of 
John McKown <[email protected]>
Sent: Monday, May 7, 2018 9:52 AM
To: [email protected]
Subject: Re: GETMAIN LOC=32

On Mon, May 7, 2018 at 8:29 AM, Tom Marchant <
[email protected]> wrote:

> On Mon, 7 May 2018 07:44:19 -0500, Paul Edwards wrote:
>
> >Oh - I'm also assuming that IBM will update
> >the operating system so that READ etc can
> >be executed in AM64.
>
> ROFL! You didn't ask for that. I think that you are assuming that is is
> trivial.
>

​What I thought about, but haven't ever throw out here for discussion, is
the idea that IBM should create a new "subsystem" accessable via the
SUBSYS= on the DD which would allow accessing PS type data sets via an ACB.
What I envision would be that when the subsystem DS was OPEN'd, the
subsystem would load an I/O routine into RMODE(24) storage and dynamically
create a DCB & new DD statement with the same DSN. Then a GET or PUT via
the ACB would invoke the I/O module appropriately which would switch to
AMODE(24) and the the actual QSAM/BSAM I/O. This would allow at least the
majority of the uses people have for PS type datasets to use this interface
from AMODE(31) or AMODE(64) routine in a consistent GUPI manner which
everybody in the industry doing it the same way, rather than "ad hoc".​



>
> Are you also assuming that they will accept an address above the bar for
> parameters?
>
> --
> Tom Marchant
>
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--
We all have skeletons in our closet.
Mine are so old, they have osteoporosis.

Maranatha! <><
John McKown

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