RTX-2000 processor PC/AT add-in card (any takers?)

Guy Sotomayor Jr ggs at shiresoft.com
Tue Apr 11 09:32:25 CDT 2017

> On Apr 10, 2017, at 11:18 PM, Lars Brinkhoff via cctalk <cctalk at classiccmp.org> wrote:
> Chuck Guzis wrote:
>> That is a bit of a surprise--in my experience it takes very little
>> code to support Forth on any processor--that someone would build a
>> dedicated chip for it is unusual.
> There are actually quite a few Forth processors.  Charles Moore himself
> designed half a dozen or so.  The RTX-2000 series is a descentant of his
> Novix chip.  Check out GreenArrays for his latest work.
> There are also some FPGA designs out there.  The J1 seems somewhat
> popular.

Yes, I’m using the J1 in some my projects.  I even wrote a J1 emulator
(in Forth of course) but it has some limitations.  I’m in the process
of re-writing it in C so I can do some multi-threaded stuff and better
simulate asynchronous I/O.

TTFN - Guy

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