"IBM Mainframe Assembler List" <[email protected]> wrote on
01/19/2022 06:05:12 PM:
> At program entry:
>
> STMH 2,14,your-high-halves-save-area 13 fullwords for 2-14 high halves
>
> At program exit:
>
> LMH 2,14, your-high-halves-save-area
Thanks. I take it that I shouldn't presume the caller has
provided an extended save area for accommodating the high halves of the
registers. Thus, on entry, I save the low halves in the caller's save
area but save the high halves in my own extended save area? Or is there
some other means of knowing whether or not to save the high halves in the
caller's save area?
Sincerely,
Dave Clark
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