Haven't seen a timings table since the early 90's, and rather than show some gusto and code up a test, my official guess is: neither.
-----Original Message----- From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On Behalf Of Paul Gilmartin Sent: Wednesday, April 17, 2013 6:19 PM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: Good Performing Code (Was: Millicode Instructions) On 2013-04-17, at 14:59, John Ehrman wrote: > > 6. Arrange branches so the "fall through" path is most frequent > I understand also that unconditional branches are faster than conditional branches. So, which is faster: BNZ LABEL Branch most frequent or: BZ *+8 "fall through" most frequent B LABEL Unconditional ? -- gil
