I've always done the ex of mvc thusly:
EX R1,TEXT8000 MOVE IN ASCII NUMBERS
Down where it will not be executed
TEXT8000 DS 0H
MVC 0(*-*,R6),B24AN FROM WORK TO OUTPUT ASCII
Duffy
-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On
Behalf Of Steve Comstock
Sent: Wednesday, May 21, 2014 7:19 AM
To: [email protected]
Subject: Re: MVCL
On 5/21/2014 8:14 AM, Robin Vowels wrote:
> From: "Steve Hobson" <[email protected]>
> Sent: Wednesday, May 21, 2014 9:38 PM
>
>
>> For many years I've used this style which I was taught be the
>> legendary Pete Roberts:
>
>> MVC TARGET(0),SOURCE
>> EX Rx,*-6
>
> I imagine that
> EX Rx,*+4
> MVC TARGET(0),SOURCE
> would be OK too.
>
>> It at least addresses the far-away MVC problem and I imagine helps
>> with the ICACHE too.
>
> ---
Both of these 'solutions' run the MVC instruction twice. Seems like a waste.
-Steve Comstock
