On Sat, 14 Aug 2010 16:27:41 -0500, John McKown wrote: >I would like to use LB for signed bytes and LLC for unsigned. LB does >sign extension and LLC clears the other bytes to zeros. But I can't >remember if our z9BC supports them.
LB was introduced with the z990. LLC was introduced with the z9-109. So you should be safe to use them both on your z9-BC as long as your DR machine is a z9 (of any kind) or later. David
