Re: GM Trip Computer

[Ludis Langens <ludis@cruzers.com>]

"Shawn R. Lin" wrote:
> 
> Earlier versions of this trip computer used an NEC 78D14 CPU which had
> on board ROM, but newer versions used a 78D10 CPU with outboard ROM on
> EPROM.  That CPU is supposedly based on the Z80.  If you're good at
> reverse engineering, I have a text file somewhere with the 78Dxx opcodes
> if you want it.

The NEC 78* series are not based on the Z80.  The register model is the
same, but everything else is different.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/


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