That's a very good clarification of the relationship between N and N3.  Thank 
you.

-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On 
Behalf Of Hall, Keven
Sent: Friday, August 08, 2014 6:13 PM
To: [email protected]
Subject: Re: ML and Architecture Level Set

I believe the 'N3' characteristic indicates that the opcode is for a 
z/Archictecture instruction that is available when a z/Archiitecture processor 
is operating in ESA/390 mode.  An 'N3' instruction is implicitly an 'N' 
instruction.

Keven



-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On 
Behalf Of Rob van der Heij
Sent: Friday, August 08, 2014 16:39
To: [email protected]
Subject: ML and Architecture Level Set

Folks,

I am looking at the Principles of Operation telling me the ML and MLR that are 
flagged N3 in the summary. And the legend says:

"N3 Instruction is new in z/Architecture and has been added to ESA/390. Any RSY 
or RXY instructions still use the RSE or RXE format and 12-bit displacements in 
ESA/390."

Wonder about the "has been added" - does this mean that 9672 machines had it 
added with a then-current MLC upgrade, or is it available for ESA/390 LPAR on a 
zArchitecture machine. Would it have to be in the OPTABLE(ESA) then?

Rob

This message and any attachments are intended only for the use of the addressee 
and may contain information that is privileged and confidential. If the reader 
of the message is not the intended recipient or an authorized representative of 
the intended recipient, you are hereby notified that any dissemination of this 
communication is strictly prohibited. If you have received this communication 
in error, please notify us immediately by e-mail and delete the message and any 
attachments from your system.

Reply via email to