[Milkymist-devel] Mico32 migration

[Sébastien Bourdeauducq]

On Saturday 04 July 2009 11.02.33 Florian Fainelli wrote:
> > Better caches and single threaded (compared to AEMB, which is not
> > Microblaze).
>
> You should really consider OpenRISC, especially as it has a large number of
> DSP-related operations which would probably be interesting to use in your
> case.

...and dedicate half of my FPGA resources to a CPU core only, which would also 
requires high-latency and complicated bus bridges for clock domain transfer 
because OpenRISC only runs at ~40MHz ?

Sorry to say, but despite its good software support and documentation, 
OpenRISC makes a perfect example for people who say that FPGA soft processors 
are slow, expensive and power-inefficient.

If really-high-speed DSP is needed, I think the current way to go is using a 
dedicated core, unless someone develops a good soft-CPU with DSP instructions.

Sébastien