[vcf-midatlantic] COBOL: vintage vs. legacy code

Evan Koblentz evan at vcfed.org
Thu Jun 1 15:44:14 EDT 2017


>> True story: I was talking on the phone just now with a high-level
>> Z-Systems software executive at IBM, who said (unprodded by me), "If you
>> really want to be efficient, go make sure you use the exact right
>> assembler instruction code to get the most out of the system."
> 
> This has always been the case, on all architectures except the very
> complex ones with branch delay slots, etc that can be more effectively
> scheduled by a compiler.  It's still very much the case in a very CISC
> architecture like IBM z.

I'm just saying it was entertaining to hear an IBM exec state it so 
directly and on-the-record.

LOL, you should have heard what this person said * off * the record :) 
but I will not be publishing that.



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