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From: LDW@USCMVSA.BITNET (Leonard D Woren)
Newsgroups: comp.lang.asm370
Subject: Re: New System/3x0 Instruction
Message-ID: <9103181110.AA23173@ucbvax.Berkeley.EDU>
Date: 18 Mar 91 11:08:00 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: IBM 370 Assembly Programming Discussion List
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Oh yeah.  One more thing.

> "instruction" is really just a subroutine of the operating system that IBM
> has decided to make faster by implementing in microcode.

Let's see now.  UPT and CFC are subroutines of SORT, not of the O.S.
And they are now documented in the POP, which according to someone's
recent definition makes them part of the architecture and real
INSTRUCTIONS.


/Leonard