> Did that gain the programmer any advantage over such as TM; BC or was it > entirely theatrical?
I don't recall at all. You can certainly picture some sort of elaborate branch table type logic dependent on both a condition and an index register in the EX register. Charles -----Original Message----- From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> On Behalf Of Paul Gilmartin Sent: Saturday, August 2, 2025 1:27 PM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: Execute-Type Instructions On 8/2/25 07:54, Charles Mills wrote: > I think I recall code back in the day that did clever "computed branch" logic > by making a BC or BCR instruction the target of EX. > Did that gain the programmer any advantage over such as TM; BC or was it entirely theatrical? > I would defenestrate any programmer that did that sort of thing today. > Is the ALTER instruction alive and well in COBOL? -- gil
