Re: [oc] x86 IP Core

[watchman@ludd.luth.se]

Aloha!

(Jumping into the thread)

From: Rudolf "Usselmann (OpenCores)" <rudi@o... > 
> On Mon, 2003-07-28 at 23:17, antti@c...  wrote: 
> > From: Rudolf "Usselmann (OpenCores)" <rudi@o... > 
> > > 
> > > Anybody know of a free or really cheap x86 IP core ? 
> > > 286 or 386 would do fine. 
> > 
> > what is the target technology? 
> > how fast it needs to be? 
> > how small it should be? 
> 
> I'm looking for a Soft IP core so the above will 
> depend on my technology. Size is always as small 
> as possible. 
> 
> > should it support v8086 mode or could be only 386 protected 
> mode? 
> 
> Well, I really only need 386, but will take what I 
> can get. I can always modify it. 

Several ASIC-vendors (LSI, IBM, Samsung, ST) as well as foundries
(TSMC) have x86 cores. But these are not soft cores. I have searched
Inventra and other places, but it's quite hard to find soft x86 cores.
One I found though is this:

http://www.siliconstrategies.com/story/OEG20021021S0042

Alternatively, what you *could* do (not saying it will be a good
solution) is to write your own decoder and attach it to the front of
one of the OC single scalar RISC cores. Performance and size will be
suboptimal, but it's (probably) easier than to build a complete x86
core from scratch.

/Joachim Strombergson - on vacation, finally!
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