Re: ****fting memory to the right

glen herrmannsfeldt wrote:
> John W. Kennedy wrote:
> 
>> robin wrote:
> 
> 
> (snip regarding MVCIN)
> 
>>> For languages whose text is read from right to left.
> 
> 
>> What's this about "no longer sup****ted"? It's still in the brand-new 
>> (last month) z/Architecture Principles of Operation.
> 
> 
> As I learned recently, it was optional in later versions of S/370,
> but seems to be standard by now.

It was, at first, unique to the 4300 series, and only entered the 
mainstream around the XA generation.

-- 
John W. Kennedy
"Compact is becoming contract,
Man only earns and pays."
   -- Charles Williams.  "Bors to Elayne:  On the King's Coins"