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Status Planned for future release
Workspace PL/I Compilers
Categories z/OS
Created by Guest
Created on Sep 15, 2025

RELATED IDEAS

Make more z/OS instructions available as builtin functions

Given recent addition of many z/OS instructions as builtin functions, it might be useful to add another one, in casu "LOAD REVERSED", to swap directly between big-endian and little-endian formats, rather than do this via declarations of variables as big-endian or little-endian, and maybe give it two names, the z/OS oriented "IRLV", and the potentially more familiar name of "B(yte)SWAP". 

Idea priority Low
  • Guest
    Sep 24, 2025

    Just add both names, and in that case you might also want to add IROL and IROR as slightly more, for developers coming from the "white-box" world, "normal" synonyms for IRRL and IRLL... 

    And maybe automagically limit the rotation of the latter to 31/63 bits, easy, at compile-time for constant arguments, potentially with a warning message, and requiring masking the data for variables, with another(?) warning message.

    Reply
  • Guest
    Sep 19, 2025
    Why not? we have a IRRL and IRLL which rotate integers by bits. So we could have ISWAP (or something with a similar name - perhaps IREVERSE?) that reverses the byte order
    Reply

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