Sinclair ZX80 / ZX81 / Z88 Forums

Just listened to this, good find, thanks

Oops... looks like I made a purchase... Should be an interesting read...

Andy

Top notch Greg, fabulous work as always...

When we reach the RET of routine keyboard HL will be something of the following 1 - 2 - 3 - 4 - 5 -> register L = F7 0 - 9 - 8 - 7 - 6 -> register L = EF Q - W - E - R - T -> register L = FB P - O - I - U - Y -> register L = DF A - S - D - F - G -> register L = FD N/L- L - K - J - H -> register L = ...

Welcome to the Forum, Lots of love for the humble machine. you can really do alot with it.

any questions just ask away.

Regard Andy

I've seen similar on zx81 isue 3 boards with red solder mask but in my case they were 1K resistors

Andy

put the sd in after powering on and see if it is recognised do a CAT

awesome that preview looks really smooth, will download and try on real hardware... BOBS played with ray traced texture mapping in lo-res a long time ago... https://www.sinclairzxworld.com/viewtopic.php?f=4&t=548&p=4951&hilit=3d+rendering#p4951 the facebook video link https://www.facebook.com/bobs.s...

Nice Trick, Thanks for sharing...

Andy

yes JR 4 bits lol nope..

JR and index offsets both 8bit SIGNED