"IBM Mainframe Assembler List" <[email protected]> wrote on
01/24/2022 02:01:29 PM:
> When I'm following save area chains in a dump, starting with R13, I look
> at the second word. If it is an address, I know that the save area at
that
> address is a standard 72-byte save area. If it is F4SA, F5SA, F7SA, or
F8SA,
> offset X'80' from R13 is the address of the save area, and I know what
> format it is.
That is all well and good -- when you're looking at a dump. But
I'm given to understand that none of that information is helpful when a
called program receives control from a 2nd- or 3rd-party caller (i.e., any
caller not written on-site) in terms of being able to tell how much
storage the caller allocated for the savearea whose address is passed to
the called program. Now, if I've got that wrong, then please enlighten
me. Thanks.
Sincerely,
Dave Clark
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