From: "Michael Büsch" <m@bues.ch>
To: b43-dev@lists.infradead.org
Subject: [PATCH] b43-asm, b43-dasm: Add 5 new instructions.
Date: Mon, 12 Sep 2011 11:25:14 +0200 [thread overview]
Message-ID: <20110912112514.344cf429@milhouse> (raw)
In-Reply-To: <CA+XFjioSx76LvY0WUCrYYUgnzUj-vdDMfdA_vqxjCwVew6HiPQ@mail.gmail.com>
On Mon, 12 Sep 2011 11:12:46 +0200
G?bor Stefanik <netrolller.3d@gmail.com> wrote:
> On Mon, Sep 12, 2011 at 10:50 AM, Francesco Gringoli
> <francesco.gringoli@ing.unibs.it> wrote:
> > Hi Larry and Michael,
> >
> > I did some testing with the firmware and discovered the meaning of a few
> > instructions that are currently marked either as "unknown jump" on the
> > bcm-specs site or do not appear at all. I chose some names but maybe you
> > have better ideas regard them.
> >
> > Here is a brief description of the instructions I'm talking about and a
> > set of patches for b43-tools to enable proper dis/assembly.
> >
> > Regards,
> > -Francesco
> >
> > -------------=--------------
> > Description of the new instructions
> >
> > Opcode 0x0D6: jumps if the difference between op1 and op2 is negative.
> > Suggested name "jdn" (jump if difference is negative).
>
> I'd suggest following the x86 convention, and calling it "jl".
Well, no. We already have a jump-if-less.
That reminds me that I already looked into these new instructions once and
they seemed quite strange to me.
Francesco, are you really sure your analysis on the instructions is correct?
My _guess_ was that they don't work on two's complement. But that was only
a guess and I didn't continue research on that.
--
Greetings, Michael.
next prev parent reply other threads:[~2011-09-12 9:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-12 8:50 [PATCH] b43-asm, b43-dasm: Add 5 new instructions Francesco Gringoli
2011-09-12 9:12 ` Gábor Stefanik
2011-09-12 9:25 ` Michael Büsch [this message]
2011-09-12 10:09 ` francesco.gringoli at ing.unibs.it
2011-09-12 10:35 ` Michael Büsch
2011-09-12 10:58 ` francesco.gringoli at ing.unibs.it
2011-09-12 11:19 ` Michael Büsch
2011-09-12 13:16 ` francesco.gringoli at ing.unibs.it
2011-09-12 13:32 ` Michael Büsch
2011-09-12 9:15 ` Michael Büsch
2011-09-12 9:56 ` francesco.gringoli at ing.unibs.it
2011-09-12 10:02 ` Michael Büsch
2011-09-12 11:35 ` Michael Büsch
2011-09-12 13:49 ` francesco.gringoli at ing.unibs.it
2011-09-12 14:04 ` francesco.gringoli at ing.unibs.it
2011-09-12 14:13 ` Michael Büsch
2011-09-12 14:31 ` Michael Büsch
2011-09-12 14:44 ` francesco.gringoli at ing.unibs.it
2011-09-12 15:07 ` Michael Büsch
-- strict thread matches above, loose matches on Subject: below --
2011-09-12 15:23 Francesco Gringoli
2011-09-12 15:36 ` Michael Büsch
2011-09-12 17:30 francesco.gringoli at ing.unibs.it
2011-09-12 18:02 ` Michael Büsch
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