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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] LD/ST Comp Unit FSM (was: Re: Scoreboard vs Tomasulo)
Date: Sun, 17 May 2020 11:07:19 +0100
Message-ID: <CAPweEDwZzU904jAo9UUn+x4C7GOvvYG+GooSePwBHw96AwtoLg@mail.gmail.com> (raw)
In-Reply-To: <ec75de0d-6ffb-969f-4250-f8a9ecf120b0@gmail.com>

On Sun, May 17, 2020 at 6:25 AM Cesar Strauss <cestrauss@gmail.com> wrote:

> > https://libre-soc.org/3d_gpu/ld_st_comp_unit.jpg
> >
> > this i reaaaally need some help with.
>
> I'm willing to lend a hand in this, and/or any other tasks the group
> deem appropriate.

that's really appreciated, Cesar.

> Do you have already have any code, unit test and/or testbench for this
> module? A timing diagram would also be welcome.

yes, it's here:
https://git.libre-soc.org/?p=soc.git;a=blob;f=src/soc/experiment/compldst_multi.py;hb=HEAD

the timing diagram is auto-generated when running that code (as its
own unit test: python3 experiment/compldst_multi.py).  it can be
loaded with "gtkwave".  to save you some time adding 100+ signals to
gtkwave i'm attaching a pre-saved diagram, i even set some pretty
colours in it :)

also a second one for the L0 cache/buffer to which CompLDSTUnit is
connected.  this is run as "python3 experiment/l0_cache.py"

i will raise a bugreport about it as this should be discussed there.

> Regarding myself, I do have experience in digital circuit design, and
> finite state machines in particular, which I mostly apply to FPGA
> programming.
>
> My field of work is in data acquisition and control, for scientific
> instruments, at the astrophysics department of a research institute (but
> I am an engineer, not an astronomer). I apply microcontrollers and FPGAs
> at several research projects. With the rise of single-board computers,
> I'm starting to use them as well.
>
> My main attraction to this project is having free firmware and boot
> loaders, and also full documentation, freely available and complete, by
> principle.

that's really appreciated.

> I have read the Charter at https://libre-soc.org/charter/, and agree
> with it.

thank you Cesar.
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Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-16 14:04 [libre-riscv-dev] Scoreboard vs Tomasulo Yehowshua
2020-05-16 15:00 ` Luke Kenneth Casson Leighton
2020-05-16 15:06 ` Luke Kenneth Casson Leighton
2020-05-16 15:13 ` Luke Kenneth Casson Leighton
2020-05-16 15:16   ` Luke Kenneth Casson Leighton
2020-05-16 15:19     ` Luke Kenneth Casson Leighton
2020-05-16 15:23     ` Luke Kenneth Casson Leighton
2020-05-16 15:52     ` Luke Kenneth Casson Leighton
2020-05-16 15:59       ` Yehowshua
2020-05-16 17:33         ` Luke Kenneth Casson Leighton
2020-05-16 20:16           ` Jeremy Singher
2020-05-16 21:37             ` Luke Kenneth Casson Leighton
2020-05-16 22:45               ` Jeremy Singher
2020-05-17  0:47                 ` Yehowshua
2020-05-17  0:53                 ` Luke Kenneth Casson Leighton
2020-05-17  5:24                   ` [libre-riscv-dev] LD/ST Comp Unit FSM (was: Re: Scoreboard vs Tomasulo) Cesar Strauss
2020-05-17 10:07                     ` Luke Kenneth Casson Leighton [this message]
2020-05-17 12:59                       ` Cesar Strauss
2020-05-17 13:03                         ` Luke Kenneth Casson Leighton
2020-05-17 22:23                           ` Luke Kenneth Casson Leighton
2020-05-17 22:42                             ` Cesar Strauss
2020-05-17 23:01                               ` Luke Kenneth Casson Leighton

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