[OpenSPARC announce] S1 Core project on SunSource

Hi all,

few days ago we have released the S1 Core and then we have

created a project page for it at:

http://s1.sunsource.net/

You can read the full press release of the shipment on

several sites, for instance on

http://s1.sunsource.net/servlets/NewsItemView?newsItemID=229

Basically the S1 Core is a project to create a cut-down

version of the OpenSPARC T1 targeted towards embedded

devices.

The main features of the S1 Core are:

- only one SPARC CPU Core (capable of running 4 threads);

- a bridge from the PCX/CPX protocol to the Wishbone bus

interface supported by several cores freely available at

www.opencore.org ;

- a very very simple simulation and synthesis environment

with just few short and commented scripts;

- both simulation and synthesis should work with Icarus

Verilog 0.8 (so no commercial licenses are required).

There are a forum and mailing lists on s1.sunsource.net

so we hope to get some collaboration there; most of the

work has been done but we would like to have some help

from the community.

Happy hacking!

Fabrizio

--

============================================

Fabrizio Fazzino - fabrizio@fazzino.it

Fazzino.IT - http://www.fazzino.it

============================================

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[1543 byte] By [] at [2007-11-26 10:07:55]
# 1

> Basically the S1 Core is a project to create a

> cut-down

> version of the OpenSPARC T1 targeted towards embedded

> devices.

>

> The main features of the S1 Core are:

>

> - only one SPARC CPU Core (capable of running 4

> threads);

Is the S1 Core SPARC-V9 compliant at Level 1, which would require that it "correctly interprets all of the nonprivileged instructions"? I suspect that, since the S1 Core is "a cut-down version of the OpenSPARC T1", an FPU is not present. Does the S1 Core generate an fp_disabled trap when it encounters a floating-point instruction?

> - both simulation and synthesis should work with

> Icarus

> Verilog 0.8 (so no commercial licenses are required).

Synthesis of OpenSPARC T1 does not work with Icarus Verilog 0.8.2. I'm working to extend Icarus Verilog so that it does.

Alan Feldstein

Cosmic Horizon

http://www.alanfeldstein.com/

Alan_Feldstein at 2007-7-7 1:48:57 > top of Java-index,Open Source Technologies,OpenSPARC...