Peter,
Ok, than I misunderstood what was or could be put into the PC microcode.

Kees.


> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Peter Relson
> Sent: 30 August, 2019 14:25
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Assembler :- PC Instruction
> 
> <snip>
> From what I understood of the PC instruction: with 1 instruction you can
> now execute a 'function' that might have taken pages of assembler
> instructions before.
> </snip>
> 
> I'm not sure where this thought comes from. The PC instruction is not
> magic. It does not execute a "function" beyond the function of the
> instruction itself.
> It passes control somewhere, may change state, may create an entry on the
> linkage stack.
> 
> Peter Relson
> z/OS Core Technology Design
> 
> 
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