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Date: Fri, 3 Jul 2015 06:55:30 -0400
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From: Jeff Garzik <jgarzik@gmail.com>
To: Jeremy Rubin <jeremy.l.rubin.travel@gmail.com>
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Subject: Re: [bitcoin-dev] Defining a min spec
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On Fri, Jul 3, 2015 at 1:33 AM, Jeremy Rubin <
jeremy.l.rubin.travel@gmail.com> wrote:
> Moxie looks fantastic! The reason I thought RISC-V was a good selection is
> the very active development community which is pushing the performance of
> the ISA implementations forward. Can you speak to the health of Moxie
> development? Ultimately, ensuring support for many open architectures would
> be preferable. Are there other reasonable open-source processors that you
> are aware of?
>
> I would be willing to work on a design a Bitcoin specific open-hardware
> processor, up to the FPGA bound, if this would be useful for this goal.
>
Moxie was designed to be small and efficient from the compiler standpoint.
As a side effect, it is easy to audit from a security perspective. It
started life as a simulator + gcc compiler backend, and then later became
an FPGA implementation.
Moxie would benefit from focused effort in building out the hardware side
to be efficient on FPGA, developing and testing multi-core support and
related efforts. This area is less mature and could use attention. Start
at https://github.com/atgreen/moxiedev/tree/master/moxie/cores/moxie
In terms of other projects, there are many open source processor cores at
http://opencores.org
--f46d04374511fb80e80519f66456
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">On Fri, Jul 3, 2015 at 1:33 AM, Jeremy Rubin <span dir=3D"=
ltr"><<a href=3D"mailto:jeremy.l.rubin.travel@gmail.com" target=3D"_blan=
k">jeremy.l.rubin.travel@gmail.com</a>></span> wrote:<br><div class=3D"g=
mail_extra"><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb=
(204,204,204);border-left-style:solid;padding-left:1ex"><div dir=3D"ltr"><d=
iv>Moxie looks fantastic! The reason I thought RISC-V was a good selection =
is the very active development community which is pushing the performance o=
f the ISA implementations forward. Can you speak to the health of Moxie dev=
elopment? Ultimately, ensuring support for many open architectures would be=
preferable. Are there other reasonable open-source processors that you are=
aware of?</div><div><br></div><div>I would be willing to work on a design =
a Bitcoin specific open-hardware processor, up to the FPGA bound, if this w=
ould be useful for this goal.=C2=A0</div></div><div class=3D""><div class=
=3D"h5"><div class=3D"gmail_extra"></div></div></div></blockquote></div><br=
></div><div class=3D"gmail_extra">Moxie was designed to be small and effici=
ent from the compiler standpoint.=C2=A0 As a side effect, it is easy to aud=
it from a security perspective.=C2=A0 It started life as a simulator + gcc =
compiler backend, and then later became an FPGA implementation.</div><div c=
lass=3D"gmail_extra"><br></div><div class=3D"gmail_extra">Moxie would benef=
it from focused effort in building out the hardware side to be efficient on=
FPGA, developing and testing multi-core support and related efforts.=C2=A0=
This area is less mature and could use attention.=C2=A0 Start at=C2=A0<a h=
ref=3D"https://github.com/atgreen/moxiedev/tree/master/moxie/cores/moxie">h=
ttps://github.com/atgreen/moxiedev/tree/master/moxie/cores/moxie</a><br></d=
iv><div class=3D"gmail_extra"><br></div><div class=3D"gmail_extra"><div cla=
ss=3D"gmail_extra">In terms of other projects, there are many open source p=
rocessor cores at=C2=A0<a href=3D"http://opencores.org">http://opencores.or=
g</a></div><div class=3D"gmail_extra"><br></div></div></div>
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