Re: vhpt_miss handler question?

From: Keith Owens <>
Date: 2003-09-27 00:54:23
On Fri, 26 Sep 2003 09:43:55 -0500, 
Mario Smarduch <> wrote:
>Some work I'm doing has taken me to the vhpt_miss
>handler. I've been looking at  the following snippet just
>wondering what happens in the case where the present
>bit is 0 and p10,p11 predicates are not set anotherwords
>they retain their application values. Would this not
>cause an errant insertion if either p10 or p11 were
>true in the application prior to the VHPT handler?

>(p7) p10,p11=r19,32              // is it an instruction

tbit.xx.unc sets both predicates to 0 if the controlling predicate is
false.  See the 'else' clause on page 3:229 of Document Number:
245319-004 (ia64 Volume 3: Instruction Set Reference).

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Received on Fri Sep 26 10:57:07 2003

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