Not on a 2818 (that is a z114 box if my google-fu is correct).  Vector Packed 
Decimal is much more recent, z14 and up I think.  The Vector Packed Decimal 
instructions were introduced in the 2017 PoOP, edition "-11" (12th edition).

There are Vector instructions available on a z114, just not the packed decimal 
variety.

Peter

-----Original Message-----
From: IBM Mainframe Assembler List <[email protected]> On Behalf 
Of Dave Clark
Sent: Tuesday, February 1, 2022 4:41 PM
To: [email protected]
Subject: Re: Unsigned 64-bit numbers

"IBM Mainframe Assembler List" <[email protected]> wrote on
02/01/2022 04:33:56 PM:
> Not that they don't work as is, but I wonder if those STCM's and UNPK 
> could be replaced by Vector Packed Decimal instructions (assuming you 
> have hardware that supports them)


        Yes, GETIME returns the date in what I would call a strange format
-- but I understand it from a VSE point of view.  The format is MMDDYYCC 
-- if you can imagine it.   ;-)  When I coded that string of STCM 
instructions I was certainly wishing for a better way.   ;-)  Our hosting 
provider has us on an IBM 2818.  I presume it supports those vector 
instructions but I don't think they are in my PoPs manual (I'm currently on a 
back-level, unsupported version of the operating system) for me to figure out 
how to use them or if they will do what I need.


Sincerely,

Dave Clark
--

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