Has anyone from IBM endorsed this? POP's doesn't state that the PSW is decremented to cause re-execution of the instruction.
Thanks, Jon. ________________________________ From: Paul Gilmartin <[email protected]> To: [email protected] Sent: Wed, May 23, 2012 9:37:23 PM Subject: Re: MVC with 2nd operand length On May 23, 2012, at 22:27, Jon Perryman wrote: > MVCL is an instruction begging for a macro. Besides loading registers and > destroying the contents of 4 registers upon completion, it is also >interruptible > so you have to ensure the move is complete. > Ensuring the move is complete is handled by the hardware. -- gil
