From: fche@redhat.com (Frank Ch. Eigler)
To: brolley@redhat.com (Dave Brolley)
Cc: sid@sources.redhat.com, cgen@sources.redhat.com
Subject: Re: [patch][rfa]: Decoding (not-so) ambiguous insns in sid/sim
Date: Wed, 02 Jan 2002 20:34:00 -0000 [thread overview]
Message-ID: <o58zbgf3x9.fsf@tooth.toronto.redhat.com> (raw)
In-Reply-To: <3C3391D7.6050301.cygnus.project.sid@redhat.com>
brolley wrote:
> [...] This situation occurs when one insn is a specialization of
> another. This patch adds the same capability to the decoders used by
> the cgen-based simulators in the sim and sid source trees. [...]
Thanks for this authoritative and exhaustive study of the issue. It
makes fine sense.
> [...]
> (list->vector
> (map (lambda (p0 p1)
> (logit 4 p0 "/" p1 " ")
> ! ; (sqrt (+ p0 p1 (* p0 p1))) ; funny function - nice curve
> ! (sqrt (* p0 p1))) ; geometric mean
> (vector->list 0-population) (vector->list 1-population))))
By the way, have you tried the "funny function" above? It would have
the property of separating the 0/0 and 0/N cases like your new
ordering function does, and is monotonic in p0 & p1, so it should not
change the relative order of existing decoders.
- FChE
next parent reply other threads:[~2002-01-03 4:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3C3391D7.6050301.cygnus.project.sid@redhat.com>
2002-01-02 20:34 ` Frank Ch. Eigler [this message]
2002-01-03 8:20 ` Dave Brolley
2002-01-03 8:32 ` Frank Ch. Eigler
2002-01-03 8:47 ` Dave Brolley
2002-01-02 15:03 Dave Brolley
2002-01-03 10:47 ` Dave Brolley
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