Hardware is cheap. Programmers (and bugs!) are expensive.


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Giliad Wilf
Sent: Tuesday, August 13, 2019 8:30 AM
Subject: Re: Instruction speeds

Hi Brian,

I did not see this sort of publications for three or four decades.

Maybe IBM zServer engineers still use some instruction timing charts during 
chip design/development.

As far as I'm concerned, my emphasis while coding is on clarity and 

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