I have a note in my wiki that says this is possible

OIHF  Rx,X'40000000' inserts X'40' into high order byte for pad character

-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On 
Behalf Of Steve Smith
Sent: Thursday, August 17, 2017 12:04 PM
To: [email protected]
Subject: Re: Source address significance for clearing MVCL

HLASM doesn't do "obviously I meant" (aka DWIM).

The source address register is ignored, doesn't have to be cleared, and will 
not be changed, when the source length is 0.  btw, the cool modern way to set 
that with one instruction is LLILH Rx,x'4000'
(e.g.).  Fair warning, this clears the high-word, if that matters to your 
program or environment.

sas

On Thu, Aug 17, 2017 at 11:27 AM, Robin Vowels <[email protected]> wrote:
> From: "Charles Mills" <[email protected]>
> Sent: Friday, August 18, 2017 1:04 AM
>
>
>> I'd need a whole lot more than two SR R2,0's.
>
>
> Obviously I meant SR R2,R2.
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus



--
sas


----------------------------------------- The information contained in this 
communication (including any attachments hereto) is confidential and is 
intended solely for the personal and confidential use of the individual or 
entity to whom it is addressed. The information may also constitute a legally 
privileged confidential communication. If the reader of this message is not the 
intended recipient or an agent responsible for delivering it to the intended 
recipient, you are hereby notified that you have received this communication in 
error and that any review, dissemination, copying, or unauthorized use of this 
information, or the taking of any action in reliance on the contents of this 
information is strictly prohibited. If you have received this communication in 
error, please notify us immediately by e-mail, and delete the original message. 
Thank you

Reply via email to