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.
Yes, but compatibility is critical. In this case, as a warning message ASMA302W is now being issued, we are allowed to fix it if we can work out how to change the relevant internals (which is not trivial). However, there are many things that we cannot fix without adding compatibility options that create more complexity than the original solution. For example, I find it very annoying that negative SETA symbols are substituted without their minus sign. Jonathan Scott, HLASM IBM Hursley, UK
