Sinclair ZX80 / ZX81 / Z88 Forums

I don’t have much call for recursion in my job (aside from occasional data validation of complex hierarchical structured data in TSQL) so mostly the DEF FN as shown. I once had a query in a tool and it needed a recursive search to do the job, An expert said it was not possible but I solved it. Prob...

I consider myself to be a reasonably competent programmer (I spend a fair amount of my professional life doing it) but reading stuff like this still blows my mind. Recursion in general or this BASIC-method with DEF FN? During my study (1987) I coded a recursive mazegenerator in Pascal and got a mes...

I consider myself to be a reasonably competent programmer (I spend a fair amount of my professional life doing it) but reading stuff like this still blows my mind.

You could try something like this as a wear cable:

https://amzn.eu/d/0e3xey0a

Although probably a bit shorter one!

Seems OK to me. I added a Spectrum keyboard membrane to the shopping bag.

Could it be a device / browser issue? Some web sites are all but unusable on my iPhone.

Bump!

Gone.

Spinnetti wrote: ↑Sun Apr 11, 2021 2:29 pm Thanks. Eventually we will have replaced every chip lol...

Unrelated to this post but you have a PM waiting for you!

A couple more photos:

It is up for £50, plus p&p (and £1 for the new sturdy box it will post in). Paypal friends and family please! Postage outside the UK is possible but may be very expensive and will not cover import duties etc. Post on here and then PM if interested. Thanks! IMG_6710.jpeg IMG_6711.jpeg IMG_6712.jpeg I...

Hello all I don’t like refurbishing these so its up for sale here before it ends up on a popular auction site in a few weeks. It is a kludge fix issue one with the bugged ROM: IMG_6717.jpeg And is complete in its box etc. I have loaded games from TZXDuino, typed in some small programs and soak teste...