🚀 go-pugleaf

In article <4fcvsn$r4d@news.ox.ac.uk>,
John Elliott <elliott@teaching.physics.ox.ac.uk> wrote:
>In article <RJM.96Feb8133827@swift.eng.ox.ac.uk>, Bob Manners (rjm@swift.eng.ox.ac.uk) wrote:

>: Wouldn't be the first time I was wrong! I thought the Speccy could
>: read ZX81 tapes? Maybe it has a backwards compatibility mode? Seems
>: unlikely for Sinclair to do this though ...

>  It _can_ read ZX81 tapes; since the processors run at the same speed and the
>hardware's very similar, you just copy the relevant ZX81 ROM code into the 
>Spectrum and away you go. This only loads the program as a raw memory dump,
>but you get the data. I've written a program to do this, which works fine on
>my real Spectrum, but no-one seems able to get it to work on an emulator.

It hadn't even occurred to me to just plug in a ZX81 tape and load it in
with the ZX81's tape code.  What a great idea!

I've got a commercial program for the TS2068 (it hasn't been sold for 
several years) that reads in ZX81 programs and does token conversion so 
that you can run the BASIC program on the 2068.  They give instructions 
for inserting a capacitor and resistor in the tape lead (some kind of 
filter).  I tried to load ZX81 programs without it, but couldn't.  Maybe 
there's a subtle difference between the Spectrum and TS2068 tape 
interface?  I've never had trouble loading commercial Spectrum software 
by tape.

Alvin