FPGAs, unobtanium and FPJ11s

[Paul Anderson]

I think you need the -yb or -yc to support the FP chip. The J11 chip rev
can  also be a concern.
The FP chip should be under $300, but I don't have the part number to check.

Paul


On 11/24/06, Gordon JC Pearce <gordon at gjcp.net> wrote:
>
> The thought occurred to me that it might be nice to have the
> floating-point option in my PDP-11/73.  Since I haven't got one, and
> don't fancy paying the $500 or so that some online sellers seem to be
> asking (do they really expect to sell *any*, never mind at that price?),
> I was wondering how easy it would be to implement in an FPGA as was
> discussed at length earlier in the week.
>
> Feasible, or a complete waste of time?  Presumably I'd need software
> written to make use of the floating-point hardware anyway...
>
> Gordon.
>