, February 12, 2022 5:14 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Registers at entry to subtask (from ATTACH)
On Sat, 12 Feb 2022 at 13:54, Binyamin Dissen
wrote:
> The manual (MVS Programming: Assembler Services Reference, Volume 1
> (ABE-HSP)) states
>
> 2-12 Used as wo
On 12/02/2022 23:14, Tony Harminc wrote:
On Sat, 12 Feb 2022 at 13:54, Binyamin Dissen
wrote:
The manual (MVS Programming: Assembler Services Reference, Volume 1
(ABE-HSP)) states
2-12 Used as work registers by the system.
but I am looking at some old functional code which seems to expect
On Sat, 12 Feb 2022 at 13:54, Binyamin Dissen
wrote:
> The manual (MVS Programming: Assembler Services Reference, Volume 1
> (ABE-HSP)) states
>
> 2-12 Used as work registers by the system.
>
> but I am looking at some old functional code which seems to expect
> (several?)
> registers values at
On Sat, 12 Feb 2022 12:53:41 -0800 Ed Jaffe
wrote:
:>On 2/12/2022 10:54 AM, Binyamin Dissen wrote:
:>> but I am looking at some old functional code which seems to expect
(several?)
:>> registers values at ATTACH time be passed as is to the subtask.
:>Perhaps it's expecting to be invoked via
On 2/12/2022 10:54 AM, Binyamin Dissen wrote:
but I am looking at some old functional code which seems to expect (several?)
registers values at ATTACH time be passed as is to the subtask.
Perhaps it's expecting to be invoked via LINK(X) rather than ATTACH(X)?
--
Phoenix Software
Standard IBM z/OS calling convention. R13 Save Area, R14 return
address, R15 address being called, R0 ?, R1 address to parameter list,
R2-14 will be restored from R13 save area before BR14 to return to
caller.
https://www.ibm.com/docs/en/zos/2.3.0?topic=guide-linkage-conventions
On Sat, Feb 12,
On Sat, Feb 12, 2022 at 11:17:52AM -0800, Charles Mills wrote:
> I would guess that if it works but is not documented then who knows. There
> is no guarantee that it does not stop working at some point in the future.
I'd guess so too, but might break a lot of things if it was changed..
>From MVS
: Saturday, February 12, 2022 10:54 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Registers at entry to subtask (from ATTACH)
The manual (MVS Programming: Assembler Services Reference, Volume 1
(ABE-HSP))
states
2-12 Used as work registers by the system.
but I am looking at some old functional code which
The manual (MVS Programming: Assembler Services Reference, Volume 1 (ABE-HSP))
states
2-12 Used as work registers by the system.
but I am looking at some old functional code which seems to expect (several?)
registers values at ATTACH time be passed as is to the subtask.
Can someone enlighten me
