> Imagine a single-chip PDP-11 (with memory, flash, uarts, and pins to 
> control)

UART? that's a peripheral, why no bit-bang? OTOH, if you think a UART is
disireable, why no A/D (just to name something)?

> (Hmm.  Corollary:  Any class in "assembly language" should teach at 
> least two different architectures.)

Make that two architectures in the education, two in one class is a bit
crowded (at least in my class: 7 * 3 hours).

> (There is now the pic16F54 as a chip even simpler than the F84...)

16F630! Dirt cheap, enough pins, internal oscillator, cousin with A/D
available.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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