Sinclair ZX80 / ZX81 / Z88 Forums

I seem to vaguely recall that Anglian water used a ZX80 in some capacity re water sampling until relatively recent times. As for myself I have EPROM programmers for the ZX81 and Spectrum and use my own zeddies for Forth, higher maths, cipher creation and audio file playing. My two speccies are for E...

@RS232

I have sent you a copy of finished game via PM for you to look at and see if it's ok with you to post on the forum.

I had to dig deep in my memory and remember the conversation I had With Andy Rea when he was last at my place, concerning the designer. When using it the menu asks whether or not Eighty One is being used. If the answer is yes then the I reg will show as 33 if no then 32 is displayed. When using real...

Pictures of UDG designer on Eighty One and real zeddy using same UDG file, Eighty One not showing any UDGs.

Just tried your test file and all I get is the vertical lines as per previous picture, across three separate systems mixture of w7 and 10.

WRX disabled.

Early issues of Sinclair User magazine ran features on people who used Sinclair computers as computers rather than games consoles, from an Olympic pentathlete to a 70 odd year old female business owner who ran stock control and wages programs successfully on a ZX81. Link to magazines. https://spectr...

Hmmm just finished doing the UDGs on real zeddy (all ok) and when it comes to emulator use, SZ-64 only shows the first 64 characters which is expected however Eighty One just shows a screenful of vertical black lines and as I don't have the skills or the time to faff around with it I'll stick with r...

Here it is. The problem is whereas at one time all 128 characters could be played with, now only the first 64 show any alteration and when used in a program only characters from the first 64 appear altered with any altered in the 128 region showing as the original character. If I use the designer wi...

I'll post my copy Paul with explanation in a moment.