[Coco] A 6809 Compatible Core in Oct. 1988?

jdaggett at gate.net jdaggett at gate.net
Mon Oct 4 15:57:22 EDT 2010

Interesting. WOuld be better if it were in English.

What I find interesting is seeing the early HDL language. The HDL predates VHDL and 
Verilog. Probably one of the first attempts to code a processor and be able to simulate it on a 
main frame computer prior to committal to silicon. Prior to the early 90's a chip as complex as 
the 6809 was too large for a single simulation. Computer simulation was in its infancy during 
the 80's. In the early 80's it was almost unthinkable to simulate a complete microprocessor 
on a mainframe computer. 

Today there is not a chip that goes out to fabrication without intense simulation and HDL 


On 30 Sep 2010 at 0:35, Little John wrote:

> I came across this a few moments ago and although I can't read the language, it appears to describe a 6809 compatible CPU core in October of 1988:
> http://alexandria.tue.nl/extra2/afstversl/E/302417.pdf
> It is a 205 page document.
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