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From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
To: Libre-RISCV General Development <libre-riscv-dev@lists.libre-riscv.org>
Subject: Re: [libre-riscv-dev] daily kan-ban update 14may2020
Date: Thu, 14 May 2020 17:44:16 +0100
Message-ID: <CAPweEDwduRY_iugPba5ncm9DGhVu3hVdgPKAAJNZ=c_ZUbWQJw@mail.gmail.com> (raw)
In-Reply-To: <20200514174935.dfe49e5868c98ae9afc8f732@platen-software.de>

On Thu, May 14, 2020 at 4:49 PM Tobias Platen
<libre-soc@platen-software.de> wrote:

> Like Yesterday I am still working on the countzero.vhdl thing.

super.  btw i noticed that countzero.vhdl is two cycles.  feel free to
make the entire thing combinatorial (no use of sync).  we need the
algorithm, working, first.  making it faster by splitting across two
stages can be added later.

you'll see at line 98
https://github.com/antonblanchard/microwatt/blob/master/countzero.vhdl

that's a *synchronous* copy.  don't do that.  just make it a
combinatorial assignment.

l.

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Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-14 10:54 Luke Kenneth Casson Leighton
2020-05-14 14:23 ` Michael Nolan
2020-05-14 14:43   ` Luke Kenneth Casson Leighton
2020-05-14 15:49     ` Tobias Platen
2020-05-14 16:44       ` Luke Kenneth Casson Leighton [this message]
2020-05-14 18:28 ` Jacob Lifshay
2020-05-14 18:55   ` Luke Kenneth Casson Leighton
2020-05-14 21:48     ` Cole Poirier
2020-05-14 22:00       ` Michael Nolan
2020-05-14 22:29         ` Cole Poirier
2020-05-14 22:52           ` Luke Kenneth Casson Leighton
2020-05-14 22:42       ` Luke Kenneth Casson Leighton
2020-05-14 23:16 ` Yehowshua
2020-05-15  8:28   ` Luke Kenneth Casson Leighton
2020-05-15  9:07     ` Tobias Platen
2020-05-15  9:09       ` Luke Kenneth Casson Leighton
2020-05-15  9:13         ` Luke Kenneth Casson Leighton
2020-05-15 10:55           ` Luke Kenneth Casson Leighton
2020-05-15 11:19             ` Luke Kenneth Casson Leighton

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