Readability has been relevant to me since the early 70s when I learnt to write assembler. I now try to write code as though I have to maintain my own code many years later when I have no memory of why I wrote it in the first place.
-----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Brent Longborough Sent: Wednesday, 7 October 2015 4:56 AM To: [email protected] Subject: BXLE considered harmful > Date: Mon, 5 Oct 2015 13:25:32 -0400 > From: Steve Smith <[email protected]> > Subject: Re: Branch Table: Item stepping considered useful; BXLE > considered harmful > > I use JXLE (or JXLEG) a lot, and don't find it at all difficult to use > or understand (the only issue is remembering what goes in which > register). It is fairly ideal for the current example, as it doesn't > require a separate counting register along with the actual index. As > Martin showed, the code is simpler. I'm sure you don't, just as I don't have a problem with the parameter block for KLMD, because I use it a lot. That's not the point; the point is readability for the poor soul who has to read my code five years after I'm dead. BXLE has a good alternative that in my view is much easier to understand, where you don't *need* to remember what goes in which register. And it does need a separate register; not for the count, but for the limit. Brent Longborough Sent from my typewriter - please forgive any typos
