From: whygee@f-cpu.org
To: Libre-RISCV General Development <libre-riscv-dev@lists.libre-riscv.org>
Subject: Re: [libre-riscv-dev] [Bug 267] The efficiency of adder/subtractor
Date: Tue, 07 Apr 2020 17:46:41 +0200
Message-ID: <bf485d8e7edff04a772bee431d23ba88@f-cpu.org> (raw)
In-Reply-To: <CAC2bXD5Vd=OPuHr5hTyE7E3aLQL924aHmeq3-z7MNWCsLFF3_A@mail.gmail.com>
On 2020-04-07 17:25, Jacob Lifshay wrote:
> On Tue, Apr 7, 2020, 08:14 <whygee@f-cpu.org> wrote:
>> Have a look :
>> http://www.ecs.umass.edu/ece/koren/arith/simulator/Add/lookahead/
>
> Neat! It is, however, limited to only 2 levels of lookahead circuits,
> which
> is only sufficient for 16 or maybe 32 bits, not for 64 or more.
It shouldn't be too hard to extend it...
> Jacob
y
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Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 22:05 [libre-riscv-dev] [Bug 267] New: " bugzilla-daemon
2020-03-26 23:10 ` [libre-riscv-dev] [Bug 267] " bugzilla-daemon
2020-04-07 5:23 ` bugzilla-daemon
2020-04-07 9:48 ` bugzilla-daemon
2020-04-07 11:39 ` bugzilla-daemon
2020-04-07 11:48 ` bugzilla-daemon
2020-04-07 13:15 ` bugzilla-daemon
2020-04-07 13:36 ` bugzilla-daemon
2020-04-07 13:38 ` bugzilla-daemon
2020-04-07 14:44 ` bugzilla-daemon
2020-04-07 15:14 ` whygee
2020-04-07 15:25 ` Jacob Lifshay
2020-04-07 15:46 ` whygee [this message]
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