On 8/11/2017 6:31 AM, Blaicher, Christopher Y. wrote:
PLO is an expensive instruction. It can do a little or a lot. There are about
10 pages in the POP to describe it.
However, until transactional processing is supported in all environments,
ISV's, who never know what environment they are running under, need to keep
using the PLO instruction. OK, Peter, we could dual path it, but who likes to
maintain dual paths?
Note that use of transactional processing is inherently dual path.
You would still need the "other" path even if every machine in the world
already supported TBEGIN.
Edward E Jaffe
Phoenix Software International, Inc
831 Parkview Drive North
El Segundo, CA 90245