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From: "Joel Soete" <soete.joel@tiscali.be>
To: "Randolph Chung" <randolph@tausq.org>
Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
	parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] c3k panics
Date: Wed, 1 Jun 2005 15:11:55 +0200	[thread overview]
Message-ID: <4282FEEC00007CF4@mail-2-bnl.tiscali.it> (raw)
In-Reply-To: <20050531062619.GI3050@tausq.org>


> 
> 
> > Ok clear but still confused why 32bit branch doesn't nullify the insn=

> > in delay slot like did 64bit?
> 
> it's a bug, but fortunately that copy of the fixup_branch macro (in
> syscall.S) isn't actually used ;-) I'll remove it.
> 
mmm, it seems that I am ongoing to become blind (to miss that ?)
ah no this the night (no idea where stand this dmaned bug) but I was just=

blind by a pocket torch thinking it would be a star :_(
 
> > btw one more thing confusing me: the third fixup_branch macro definit=
ion
> > in lusercopy.S:
> > [snip]
> >          .macro fixup_branch,lbl
> >          ldil        L%\lbl, %r1
> >          ldo         R%\lbl(%r1), %r1
> >          bv          %r0(%r1)
> >          .endm
> > 
> > This time just bv not bv,n ?
> 
> Yes, if you look at where the macro is used you will see that there is
> an instruction in the delay slot for the branch that should be executed=
.
> 
Cool :-)

Thanks,
    Joel


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  reply	other threads:[~2005-06-01 13:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-31  5:41 [parisc-linux] c3k panics Joel Soete
2005-05-31  6:26 ` Randolph Chung
2005-06-01 13:11   ` Joel Soete [this message]
2005-06-01 13:55     ` John David Anglin
2005-06-05 19:15   ` Some other cleanup [Was: [parisc-linux] c3k panics] Joel Soete
  -- strict thread matches above, loose matches on Subject: below --
2005-06-01 15:05 [parisc-linux] c3k panics Joel Soete
     [not found] <429A0B7C.3020003@tiscali.be>
2005-05-29 20:49 ` John David Anglin
2005-05-29  1:41 John David Anglin
2005-05-29  1:50 ` John David Anglin
2005-05-29 22:08   ` Carlos O'Donell
2005-05-29 23:39     ` John David Anglin
2005-05-29 10:32 ` Joel Soete
2005-05-29 17:15   ` Joel Soete
2005-05-30  1:13     ` Randolph Chung
2005-06-01 14:04     ` Joel Soete
2005-05-29 17:45   ` John David Anglin

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