Sinclair ZX80 / ZX81 / Z88 Forums

You'll find it here.... http://www.zx81stuff.org.uk/zx81/tape/z Use the Gladstone version as the original Bug-Byte version has a (pun intended) bug in it that doesn't seem to manifest itself in the Gladstone version. As for the book I have it also and found it very disappointing with no useful examp...

Who's Andy "Rae"

1024MAK wrote: ↑Thu Jul 20, 2017 4:19 pm What Moggy really, really wants, is an image of the contents of a "real" EPROM chip

Mark

DAMMIT FOILED AGAIN!!!


Not really though there's a maths bug in the real thing, well the UK one at least.

God that's nice!! 8-) @ draketungsten I notice you're running what looks like an original treeforth EPROM. Could I ask a small favour? Could you compile and run the following and post a screen shot please? ED OFF CO REV : z 1000 0 do i . loop ; I've never come across an original Forth EPROM before, ...

Hi Monzamess. I would guess this is heat related as a turn off and cool down temporarily cures it. My views on heat sinking a chip in an enclosed environment with no air movement through the case are well known here and suffice to say I find it a redundant exercise. But seeing as you are working "op...

Hells bells Barry Bucknell at his worst did better than that!


Heat sink I don't see one (thank God).

Be careful with what you use to get rid of the pen marks, I occidentally dropped a blob of acetone on my space key and it dissolved the legend in a flash!

Nice K/B Tezz.

It seems the previous owner has left the tiny stickers off that go on the ridge at the front of the keys and just used felt tip pen.

Oddly enough they're missing on mine too!

Hi from me too Rufo.

Nice printer by the way good choice.

Don't worry about the language we all speak ZX81!!

mejores deseos para usted ( I think)


Moggy.

@Lardo

Don't worry about the tarnish it's quite common on Mostek chips and I agree with Karl re timing as I'm sure Andy has had similar problems with certain roms when creating devices for himself.