Search found 1058 matches

by Paul
Wed Jan 15, 2020 11:14 am
Forum: FAQs
Topic: ZX81 as a ZX80 by just changing ROM?
Replies: 4
Views: 188

Re: ZX81 as a ZX80 by just changing ROM?

And of course the ZX81 still responds to /ROMCS when using the ZX80 ROM while the ZX80 has no /ROMCS.
by Paul
Wed Jan 15, 2020 11:11 am
Forum: FAQs
Topic: ZX81 as a ZX80 by just changing ROM?
Replies: 4
Views: 188

Re: ZX81 as a ZX80 by just changing ROM?

Yes and no. It does work but will need several reboot because the ZX81 ULA has no default for the startup state of the NMI generator. The ZX81 ROM sets it off with the very first command. The ZX80 ROM lacks this feature (because when it was designed there was no NMI-Generator). User Holmatic of the ...
by Paul
Tue Jan 14, 2020 3:01 pm
Forum: WANTED
Topic: SD card reader for ZX81
Replies: 7
Views: 325

Re: SD card reader for ZX81

There is also a vdrive (a usb port for usb sticks from ftdi) which is a little more tricky to handle as it has no new commands. It works via PRINT USR 8888,"LTEST.P" for loading Test.p or PRINT USR 8888,"D" for Directory etc It's described in the forum.tlienhard.com. Except from this there is a ZXPa...
by Paul
Thu Jan 09, 2020 4:20 pm
Forum: Sinclair Misc
Topic: ZX80 and 81 Paint Job Designs for Gran Turismo PS4
Replies: 4
Views: 486

Re: ZX80 and 81 Paint Job Designs for Gran Turismo PS4

I'd like to buy the ZX80 mini. Where can I order it?
No need to send it. I'll come along and get it.
Kind regards Paul
by Paul
Thu Jan 09, 2020 12:41 pm
Forum: Development
Topic: ZX81 Clone Tynemouth Minstrel 3
Replies: 18
Views: 1199

Re: ZX81 Clone Tynemouth Minstrel 3

The minstrel 3 is ZX81 Size so it's not suitable for a ZX80 case.
by Paul
Thu Jan 09, 2020 10:11 am
Forum: Welcome Area
Topic: Hello from Durham, UK
Replies: 5
Views: 313

Re: Hello from Durham, UK

Welcome Here as well Peter!
Kind regards Paul
by Paul
Tue Jan 07, 2020 11:16 am
Forum: Emulators
Topic: Is there any Emulator supporting VDrive (vinculum) emulation?
Replies: 2
Views: 572

Re: Is there any Emulator supporting VDrive (vinculum) emulation?

Sorry, that's not what I was looking for.
I'm searching an emulator that uses a real vdrive or an emulation of it on a pc.
by Paul
Fri Jan 03, 2020 8:29 pm
Forum: Development
Topic: How to enable ZX-Key external keyboard with Minstrel 3 board
Replies: 8
Views: 311

Re: How to enable ZX-Key external keyboard with Minstrel 3 board

The same happens with original ZX80.
If I want to use an external keyboard I just pull the keyboard driver IC and everything works perfectly.
by Paul
Thu Jan 02, 2020 5:53 pm
Forum: Welcome Area
Topic: Newbie to the forum, oldie to the zx81
Replies: 4
Views: 349

Re: Newbie to the forum, oldie to the zx81

That was because my lack of money. In 1980 I saw a ZX80 in the UK and immediately started saving all my money. In Germany they were much more expensive. At the time the ZX81 came to market I had saved about half the money for it. When the spectrum was available I was able to buy it in UK. In Germany...
by Paul
Thu Jan 02, 2020 1:32 pm
Forum: Welcome Area
Topic: Newbie to the forum, oldie to the zx81
Replies: 4
Views: 349

Re: Newbie to the forum, oldie to the zx81

You are welcome to our forums.
My first ZX81 cost 5 DM in 1986.
My first Sinclair was a spectrum 16k in late 1982. And in 1983 I managed to get a ZX80 for 20 hfl.

I ran a ZX User Club together with a classmate.

Kind regards Paul