Ref: Your note of Wed, 17 Nov 2021 18:09:47 +0000
gil writes:
>Also, decades ago, I found that (something like):
>PSWMAP DSECT
> ...
> USING PSWMAP-SVCOPSW,R0
>
>quietly behaved as if I had coded:
> USING PSWMAP,R0
>
>Experts conceded that the behavior is indefensible except
>on grounds of compatibility with existing art.
Note that this sort of offset USING in low storage can be
achieved using a dependent USING, for example (assuming
LOWSTG is a DSECT and SVCOPSW is an equated offset):
USING LOWSTG,0
then
USING PSWMAP,LOWSTG+SVCOPSW
or
USING PSWMAP-SVCOPSW,LOWSTG
Jonathan Scott, HLASM
IBM Hursley, UK
