Hi,
I found this interesting german website:
AX81 - ZX81 with AVR
It's an ZX81 clone made with an ATMEGA644 ... It's nearly full compatible. That means it is possible to run original software from the ZX81 on it.
-Harty
Sinclair ZX81 clone with ATMEGA644
Sinclair ZX81 clone with ATMEGA644
Life's too short to remove usb safely
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Re: Sinclair ZX81 clone with ATMEGA644
Thanks for the link Harty, that's fascinating stuff. Although the ZX81 was a fairly limited machine with only text mode, that it actually runs existing programs at full speed is a feat by itself.
Re: Sinclair ZX81 clone with ATMEGA644
I've sent a mail to Joerg Wolfram and asked him about the possibility to port this software to the Uzebox... Perhaps a good extension to the Uzebox...
-Harty
-Harty
Life's too short to remove usb safely
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Re: Sinclair ZX81 clone with ATMEGA644
Great find. Emulating a Z80 on a AVR is no mean feat.
I've still got a ZX81 and the later ZX Spectrum. It would be serious cool, if they was enough processing cycles in the AVR to emulate the Z80 and run the Uzebox kernel to give us a hardware emulation of the speccy but I don't think the AVR has enough grunt to pull it off
I've still got a ZX81 and the later ZX Spectrum. It would be serious cool, if they was enough processing cycles in the AVR to emulate the Z80 and run the Uzebox kernel to give us a hardware emulation of the speccy but I don't think the AVR has enough grunt to pull it off
Re: Sinclair ZX81 clone with ATMEGA644
Hi Tony
eat this:
ATMEGA88 with CP/M
You will find a lot of links to other AVR projects wit Z80 and 8080 emulation...
-Harty
eat this:
ATMEGA88 with CP/M
You will find a lot of links to other AVR projects wit Z80 and 8080 emulation...
-Harty
Life's too short to remove usb safely
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Web: www.hwhardsoft.de
http://www.facebook.com/hwhardsoft
YouTube: http://www.youtube.com/user/hwhardsoft
Re: Sinclair ZX81 clone with ATMEGA644
zx spectrum 128
http://meandr.org/archives/7082
Или то же самое, только здесь http://zx-pk.ru/showthread.php?t=19442
zx spectrum 48 на AVR http://zx-pk.ru/showthread.php?t=13747
http://meandr.org/archives/7082
Или то же самое, только здесь http://zx-pk.ru/showthread.php?t=19442
zx spectrum 48 на AVR http://zx-pk.ru/showthread.php?t=13747
Re: Sinclair ZX81 clone with ATMEGA644
Interesting! Weird form factor though?!zx spectrum 128
- Speeddemon
- Posts: 72
- Joined: Thu Nov 29, 2012 12:27 am
Re: Sinclair ZX81 clone with ATMEGA644
Hmm merge uzebox emulator with speccy z80 emulator cpu core = version 2 uzem?????