Thanks. Now I kind of remember what they can do.
Steve Thompson
On 9/18/2023 5:14 PM, Seymour J Metz wrote:
A CE appendage gets control after the channel program and any associated error
recovery have completed. In OS/360 it ran disabled, but in MVS it runs as an
extension of the EXCP Supervisor; I don't recall what locks are held.
________________________________________
From: IBM Mainframe Assembler List <[email protected]> on behalf of
Steve Thompson <[email protected]>
Sent: Monday, September 18, 2023 5:10 PM
To: [email protected]
Subject: Re: Channel Appendage Routines
Forgive me, but I can't remember what a channel appendage is or
is for.
Could you just give me a quick answer/idea.
I used to do CCW stuff but since ECKD, I've only done CCWs for
tape (which is now not supported).
Regards,
Steve Thompson
On 9/18/2023 4:54 PM, Tony Thigpen wrote:
In VSE, yes.
Tony Thigpen
Dave Clark wrote on 9/18/23 4:36 PM:
"IBM Mainframe Assembler List"
<[email protected]> wrote on
09/18/2023 04:27:49 PM:
On the program we are both working on, the use of format-1
CCWs is not
needed. In the end, it's one linked together program that is
loaded by a
// EXEC card, thus it is always loaded in 24bit.
So, the only reason for using a format-1 CCW is so that
the I/O
buffer can reside in 31-bit space?
Sincerely,
Dave Clark
--
int.ext: 91078
direct: (937) 531-6378
home: (937) 751-3300
Winsupply Group Services
3110 Kettering Boulevard
Dayton, Ohio 45439 USA
(937) 294-5331
*********************************************************************************************
This email message and any attachments is for use only by the
named addressee(s) and may contain confidential, privileged
and/or proprietary information. If you have received this
message in error, please immediately notify the sender and
delete and destroy the message and all copies. All
unauthorized direct or indirect use or disclosure of this
message is strictly prohibited. No right to confidentiality
or privilege is waived or lost by any error in transmission.
*********************************************************************************************
