Approaches to projects (was: KM11 maintenance module

From: Stan Barr <>
Date: Thu Nov 25 13:20:00 2004


Tony Duell said:

> > I can combine both of those :-) I have a ZX81 that runs Forth[1] from an
> When I read that, my immediate thought was 'Skywave' :-). I believe they
> also did versions for other UK home micros (the idea of a BBC version is
> floating around my brain).

That's the one...

> > EPROM. Unfortunately I have no way of reading the eprom to make a copy,
> You mean this Forth doesn't include the C_at_ and C? words? It's seriously
> broken if it doesn't! The former is the equivalent of Peek -- it's

All the normal Forth words including C! and C_at_ etc are there...
It's a fairly full featured Forth, it just runs out of the eprom
which replaces the ZX81 one, rather than a program that loads on top
of the ZX81 system. Blocks on cassette are a difficult thing to cope
with though!
It would be nice to make a copy eprom though, just in case. Writing it
out to cassette would be possible, but a bit tedious, an eprom burner is
the answer I think...

At the time it was very impressive to see multiple applications running
simlutaneously in (tiled) windows on a ZX81, come the think of it it's
still quite a feat.

(I have Forth on just about every machine here, from Mac to PDP-11...)

Stan Barr
The future was never like this!
Received on Thu Nov 25 2004 - 13:20:00 GMT

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