[Haskell-cafe] Translating Haskell to VHDL. What approach to follow?

Alfonso Acosta alfonso.acosta at gmail.com
Sun Nov 5 23:18:45 EST 2006

On 11/6/06, Neil Mitchell <ndmitchell at gmail.com> wrote:
> Can you mention what you need type information for? If it is to detect
> higher order functions (as you have mentioned in IRC conversations
> with me) then in about a week I am going to announce a Yhc.Core first
> order transformation, which will remove that issue for you. In general
> the lack of types in Yhc.Core has not proved a major issue for anyone
> - if there is anyone who does absolutely require type information in
> their intermediate language and therefore cannot use Yhc.Core, I'd be
> very interested to hear from them.

As you said, detecting the use of high order is one of the reasons as
it's not supported by VHDL.

I haven't yet planned how to achieve the translation but VHDL, unlike
Haskell, doesn't have type inference mechanisms. That means I need to
declare the interface of whatever I will translate each Yhc.Core
function to (i.e. VHDL Entities, Architectures, Functions ... )

>> I discarded GHC due to the current "bit-rotted" state of External Core

> Igloo submitted a few patches in the last week to get GHC.Core working
> again. It doesn't have the same infrastructure support as Yhc.Core,
> but it does have the advantage of having the GHC team behind it.

Does that change involve ExternalCore as well?

Either the way, those are great news. I'll have a look at it again.I
don't know much about SystemFC itself but I'm familiar with SystemF
and doesn't seem as friendly and easy to work with as Yhc.Core . I'll
give it a try anyway.

Thanks for the answer,

Alfonso Acosta (fons)

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