I have no problem with

RA       EQU   X'A'
         ...
RF       EQU   X'F'

If the values of RA through RF are any other GR numbers, *then* I will raise 
the roof.


--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3

________________________________________
From: IBM Mainframe Assembler List [[email protected]] on behalf 
of Rob van der Heij [[email protected]]
Sent: Thursday, April 30, 2020 8:54 AM
To: [email protected]
Subject: Re: *-*

On Thu, 30 Apr 2020 at 14:40, Seymour J Metz <[email protected]> wrote:

> Empirically, it *is* necessary to explain that equating R0 though R15 to
> register numbers other than the ones implicit in the names is a cardinal
> sin.
>

I ran into some code where the programmer decided to know better and had
defined RA-RF and used that where he made his changes (and have me scratch
my head about something keeping an address as return code).  I did not
friend him.

Rob

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