I am by no means an expert but based on my mental model, the branch approach is going to be slower.
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Binyamin Dissen Sent: Sunday, February 16, 2014 1:11 AM To: [email protected] Subject: Performance question - adding Say I have two words, CURRENT DS F SUM DS F I want to add CURRENT to SUM, but most of the time CURRENT will be zero. CURRENT and SUM are not adjacent (different data lines) Which is best L Rx,CURRENT A Rx,SUM ST Rx,SUM or L Rx,CURRENT LTR Rx,Rx JZ SKIP A Rx,SUM ST Rx,SUM SKIP DS 0H ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
