Search found 755 matches

by mrtinb
Sun Sep 23, 2018 12:55 pm
Forum: ZX BASIC
Topic: Typing keywords in BASIC
Replies: 4
Views: 69

Re: Typing keywords in BASIC

by mrtinb
Sat Sep 22, 2018 11:14 pm
Forum: ZX BASIC
Topic: Typing keywords in BASIC
Replies: 4
Views: 69

Re: Typing keywords in BASIC

by mrtinb
Sun Sep 09, 2018 8:11 pm
Forum: Hardware
Topic: Dead ZX81.
Replies: 10
Views: 428

Re: Dead ZX81.

In Denmark we call it snow or snow weather.
by mrtinb
Sat Sep 08, 2018 3:22 pm
Forum: Hardware
Topic: ZX81 External Keyboard
Replies: 16
Views: 532

Re: ZX81 External Keyboard

The German forum has designed a new controller and new keyboard with cherry keys with ZX81 symbols. It might be a product to buy soon.

Edit: Link to keyboard in German forum
by mrtinb
Fri Sep 07, 2018 1:11 pm
Forum: Hardware
Topic: ZX81 External Keyboard
Replies: 16
Views: 532

Re: ZX81 External Keyboard

I used Wilf Rigter's schematic to create my own external keyboard controller. I'm sold out of the pcbs I made. It was my first electronics project, so anyone should be able to do it.
by mrtinb
Thu Sep 06, 2018 10:22 pm
Forum: ZX BASIC
Topic: BASIC drawing proggy
Replies: 14
Views: 598

Re: BASIC drawing proggy

As you can see in many threads on this forum, the general problem with the 16K RAMpack is bad capacitors.

You could open it up and replace the capacitors, and that might fix your RAMpack.
by mrtinb
Thu Sep 06, 2018 7:17 pm
Forum: ZX BASIC
Topic: Small memory dump program
Replies: 14
Views: 774

Re: Small memory dump program

You could start a new.
by mrtinb
Wed Sep 05, 2018 1:22 pm
Forum: ZX BASIC
Topic: Small memory dump program
Replies: 14
Views: 774

Re: Small memory dump program

If you have a PC soundcard that can record the very low recording signal from ZX81, you can data to your PC as .WAV file, and that file can be loaded in EightyOne emulator as well.

(Then you can continue playing until your ZXpand arrives.)
by mrtinb
Wed Sep 05, 2018 12:55 pm
Forum: ZX BASIC
Topic: Small memory dump program
Replies: 14
Views: 774

Re: Small memory dump program

If you implement SAVE in your program, the generated .P file can be moved to your PC with the SD-card. Your emulator could then load your file.
by mrtinb
Wed Sep 05, 2018 12:16 pm
Forum: ZX BASIC
Topic: Small memory dump program
Replies: 14
Views: 774

Re: Small memory dump program

If you don't need to load the pictures again, but just needs to look at them, the you can just use the COPY command to print the screen's content to the printer. This will work both in EightyOne and on real hardware.

Edit: In the emulator you can save the printer-output to an image file.