On Wed, 20 Apr 2022 at 13:03, Charles Mills <charl...@mcn.org> wrote:
> > USING *,16 > I was wondering about R16. Would come in handy. Maybe on the z16...? [There was an old PL/I Optimizer APAR (1980ish?) complaining that a new compiler release could not generate code for certain large source modules that had worked previously. The IBM answer was that there weren't enough registers, and that if that were to be addressed in a future hardware version, then they'd be able to generate larger code blocks. Of course in a sense the compiler folks eventually got what they wanted in the High-Word Facility on zArch.] Tony H.
