From, e.g., assembler. If you call it from REXX then R0 will automatically 
point to the relevant environment block.

________________________________________
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
Paul Gilmartin <0000042bfe9c879d-dmarc-requ...@listserv.ua.edu>
Sent: Wednesday, April 5, 2023 11:42 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Unzip on z/OS ?

On Wed, 5 Apr 2023 15:26:13 +0000, Seymour J Metz <sme...@gmu.edu> wrote:

>How are they different? Are you saying that if you call BPXWDYN from a Unix 
>shell environment that you can't pass an ENVB in R0? That seems unlikely.
>
Directly?  Is there an External Link to LINKLST(BPXWDYN)?

>From UNIX Rexx, I'e used
o CALL BPXWDYN ... (regularly)
o addressTSO 'CALL BPXWDYN ...' (when necessary)
o address LINKMVS 'BPXWDYN PARM' (maybe; I don't remember.)

>RCF?
>
Good idea.  You go first.

Better: RFE to relax requirement for unconventional plist; support "pragma 
linkage system".

--
gil

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