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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 19may2020
Date: Tue, 19 May 2020 18:56:20 +0100
Message-ID: <CAPweEDzkRvwmA=+T6fiyGHoWVQD6D_R+bxtfMy5j0SWyBUSOJw@mail.gmail.com> (raw)
In-Reply-To: <1b56d581-15d1-cc09-a581-d9547564381b@gmail.com>

On Tue, May 19, 2020 at 6:47 PM Michael Nolan <mtnolan2640@gmail.com> wrote:
>
> Today I was going to try and work on the trap block, but it looks like
> Luke is already working on defining the registers for it and I don't
> want to interfere.

nope, go for it Michael.  i was just taking notes.  it is end-of-day
here for me anyway.

> I was able to modify caller.py to correctly generate carries, and added
> checking of the carry bit to the alu unit tests. One snarl with that
> though is I am unable to get qemu to show modifications to the carry bit
> in XER for some reason. This isn't an issue for carry (or overflow), but
> it would be good to have for the 32 bit carry and overflow. I may need
> to hold off on the 32 bit versions until I'm able to run tests on a real
> power machine.

ar

> I also looked at the differences between nmutil.clz and nmigen's
> PriorityEncoder, and summarized them in
> https://bugs.libre-soc.org/show_bug.cgi?id=326

yep good call, closed and commented nmigen.clz given that it's better.

have to remember that because PriorityEncoder gets used in a few places.

l.

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Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19 11:59 Luke Kenneth Casson Leighton
2020-05-19 12:36 ` Luke Kenneth Casson Leighton
2020-05-19 16:38   ` Cesar Strauss
2020-05-19 17:13 ` Jacob Lifshay
2020-05-19 17:34   ` Luke Kenneth Casson Leighton
2020-05-19 17:47 ` Michael Nolan
2020-05-19 17:56   ` Luke Kenneth Casson Leighton [this message]
2020-05-19 18:01     ` [libre-riscv-dev] priority encoder replacement Jacob Lifshay
2020-05-19 18:46       ` Luke Kenneth Casson Leighton
2020-05-19 20:17     ` [libre-riscv-dev] daily kan-ban update 19may2020 Cole Poirier
2020-05-20  6:39 ` Tobias Platen
2020-05-20 11:28   ` Luke Kenneth Casson Leighton

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