might a lurker ask questions? if one rearranges the code at bottom as this, is the load of R2 "cheaper" because it can be done in parallel w/the LT? is it worth doing if the JZ is taken?
is 0(,R1) preferred to 0(R1) because of cost or esthetics? LT R1,POINTER L R2,INTVAL JZ AROUND ST R2,0(,R1) AROUND DS 0H > From: "McKown, John" <john.mck...@healthmarkets.com> > L R2,INTVAL > LT R1,POINTER > STOC R2,0(,R1),NZ > > instead of: > > LT R1,POINTER > JZ AROUND > L R2,INTVAL > ST R2,0(,R1) > AROUND DS 0H > > for the C construct: > > if (POINTER != NULL) *POINTER=INTVAL; ----------------------------------------- The information contained in this communication (including any attachments hereto) is confidential and is intended solely for the personal and confidential use of the individual or entity to whom it is addressed. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, copying, or unauthorized use of this information, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. Thank you ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN