Sinclair ZX80 / ZX81 / Z88 Forums

Will it work for simple keybord read on hardware that is not ZXpand, or is it ZXpand specific ports? Only the joystick is ZXpand specific. The keyboard reading is Sinclair standard. No specific hardware required :D So if I use this routine in my program without ZXpand it will crash because I don't ...

Here is my humble submission in the category of a nice general purpose input routine, where input from a number of devices is focused into a few simple values which can tell you whether an input is: Is this a routine that gets both a joystick direction and a key back? Can it be used for plain keybo...

Moggy wrote: ↑Mon Nov 13, 2017 8:34 pm A couple of pics of 12v fan in case which is now connected to 5v and both cases temporarily put back together.

On the second picture you need to put the rubberfeet back on. Otherwise the fan is useless.

yerzmyey wrote: ↑Sat Nov 11, 2017 7:50 pm ZX81 with ZXpand reads BMP files 256/192, so I can provide all 10 illustrations in this format. 1-bit / mono.

As you can see in MAXDEMO - it can display 320x240 with Bodo Wenzel's code.

With UDG, I can create an inverted char set to make a screen with white chars on black screen. Can an external interface be made to change the white border to black? Or can it be done in software?

I hope someone from NYC is here in the forum.

Wow Paul

Interesting. I assume your ROMs are for the 8k - 16k area.

A dump of that would be great.

As Hot Z gave the opportunity to modify the program to your own needs, the files in the ZIP is someone's personal modification.

The character set is stored at $1E00 - $1FFF. The screen memory is a whole different story. It is the most complex of the ZX81/TS1000. Screen memory is floating around in memory dynamically after the program area. So if you add or delete a line in your program screen memory is moved up and down. On ...

XavSnap - I like your software - but they seem difficult to install. It would be great if your software was statically linked so it was running without external DLLs and English ones if possible. I had great problems getting VB81 to run, so now I don’t update it anymore. When I need it on a new mach...