I have a box of 1800 series chips. If I have one I'll let you have it..
Rick

michael brown wrote:

> From: "William Chops Westfield"
>
> > On Friday, Dec 12, 2003, at 04:46 US/Pacific, michael brown wrote:
> >
> > >  All in all, roughly comparable in power to a low end PIC
> >
> > nah.   IIRC, while the 1802 ran at up to 10MHz (when powered
> > by 12V), it also used something like 16 (!) cycles per
> > instruction, compared to four for the PIC.  A weird beast
>
> I don't know, 10MHz sounds pretty high to me at least for a 1978 vintage
> processor.  Mine ran at (3.58MHz / 2).  8 clock "ticks" per machine
> cycle, most instructions taking two or three cycles.
>
> > by todays standards; something like 16 pointer registers.
> > And of course the famous "sex" instruction.
>
> Yes, quite an interesting mnemonic.  ;-)  Did you test the "illegal"
> op-code 0x68 to see what it did on your CPU?  If anyone has a spare
> CDP-1861 lying around, I'd like to get my ELF going again.
>
> michael brown
>

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