The Cray-1 implementation is here http://chrisfenton.com/homebrew-cray-1a/
On Sat, Apr 7, 2012 at 1:47 PM, Javier Herrero <jherr...@hvsistemas.es>wrote: > El 07/04/2012 13:19, Azelio Boriani escribió: > >> The Xilinx and Altera have their embedded CPUs (Microblaze and Nios) IP. >> I'm not familiar with them and don't know how much they cost. Until now I >> have developed on Xilinx 50Kgates FPGA and 128 cells CPLD with the >> Xilinx's >> free tools. >> >> Mostly expensive for amateur use, although reduced free versions exists > (for Nios-II it is Nios-II/e without MMU and no cache, I suppose that > something similar for Microblaze). But both are closed-source. > > There are open-source soft processors like LatticeMico32 and LEON3. I'm > moving to one of these for a next project (not yet decided which one, since > in this case it will be a bare-metal application, with no operating system, > but I would like to use a processor that is supported by Linux distribution > for the future). Linux is ported to both, and for LM32 (not sure if for > LEON3), RTEMS also (see www.milkymist.org , an open source hardware and > software project with an LM32 implementation on a Spartan 6 FPGA using > RTEMS. Also there is a plethora of soft implementation of several > processors in OpenCores (ranging from 6502 to OpenRISC) and also somewhere > I read about an implementation of a Cray-1 in a Spartan-3 :) > > Regards, > > Javier > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
