> From port-alpha-owner-ross=teraflop.com@NetBSD.ORG Thu May 21 12:43:18 1998
> To: Ross Harvey <ross@teraflop.com>
> Cc: colins@softimage.com, port-alpha@NetBSD.ORG
> From: "Chris G. Demetriou" <cgd@pa.dec.com>
> Subject: Re: DANGER WILL ROBINSON 
> Date: Thu, 21 May 98 11:56:33 -0700
>
> ...
>                    ...However, I think Ross has indicated privately in
> the past that the PALcode seems to the 'expected' thing regarding the
> setting of the FEN flag in the PCB.  (Ross, can you confirm that?)

On both ev4 and ev5* the wrfen palcode op writes both the internal processor
register bit and the pcb field immediately.

On swpctx both palcodes just load the bit. Neither one saves the bit into
the old pcb...which certainly confirms the it's-really-synchronous 
interpretation.

Ross