Very much interesting! Thank-you!
Maybe this will settle the question of whether XR, SR, SLR, LHI, or LA
is the fastest way to clear a register. Spoiler alert:
All the same (and they're all optimized), except the latter two don't
set the CC, and there's a subtle hint that might be a hundredth of a
picosecond* better.
*Don't know the fractional prefixes beyond pico... besides I just made
that up.
sas
On 3/30/2016 15:40, Jim Mulder wrote:
This may be of interest to some of you:
https://www.ibm.com/developerworks/community/forums/html/topic?id=5cf34211-c8e6-4747-a8c2-f8ff7379150b
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
