home .. forth .. misc mail list archive ..

Re: An Alternative to x21



Very useful for DYOP. 

We can VERIFY our technology in a REPLICATABLE manner.

Simon
==================================================
>Dave Lowry wrote:
>> 
>> Those who do not subscribe to Dr. Ting's Forth Engines
>> newsletter may not know that he has reverse-engineered
>> MuP21.  He has written, in Verilog and VHDL, a 16 bit
>> "clone".  At present, it's just the CPU, no video.
>> 
>> I have synthesized the VHDL version, and run it in a
>> Xilinx gate array at about 25 MHz.  This is not too
>> terribly far from the real-world performance of the x21
>> chips running out of DRAM.  Plus, the chip seems to
>> perform much more reliably than MuP21.
>> 
>
>
>Is there a potential interim "product" in this, perhaps for sale through
>Jeff's store, to help Dr. Ting and Jeff fund and forward their MISC
>efforts?
>
>Lloyd R. Prentice
>
>
Simon - http://www.tefbbs.com/spacetime/index.htm