I think Haskell is the right language to nail down the semantics of Erlang and to prototype an implementation.
For performance, I think Haskell is probably not the right language, because you need high performing low level code.
This isn't impossible in Haskell, but the implementations are not geared towards that.

On 8/16/07, Joel Reymont < joelr1@gmail.com> wrote:

On Aug 16, 2007, at 1:36 PM, Neil Bartlett wrote:

> However, wouldn't it be rather difficult, given that there doesn't
> seem to be a publicly available specification for the Erlang VM or the
> BEAM file format

Very difficult, correct. I use Erlang daily, in fact Erlang is what
brings bread to my table. I want to learn more about the Erlang
insides so I'll simply dig in.

> Perhaps it would be interesting to look at a slightly more constrained
> problem: can Erlang's message passing model (including distributed
> messaging across a network) and process monitoring facilities be
> replicated in Haskell?

My ultimate goal is to have a version of the Erlang VM that's
suitable for running trading systems, i.e . one that allows high-speed
numerics. I don't have much interest in replicating OTP in Haskell
and Haskell may ultimately not be the right choice for what I envision.

        Thanks, Joel

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