Your download link is at the very bottom of the page... always.

Processed through Paypal
No account required.

Donate Bitcoin to this wallet:
Donate Ethereum to this wallet:
Donate Litecoin to this wallet:

Buy our over-priced crap to help keep things running.
Take No CrapwareOG Dad CapNo Password

Join our Facebook groupFollow us on TwitterFollow us on InstagramOur RSS FeedJoin us on TikTokJoin us on LinkedIn

 Home » Freeware Downloads » Virtualization and Emulation » EightyOne Sinclair Emulator v1.39   
File - Download EightyOne Sinclair Emulator v1.39

Always scroll to the bottom of the page for the main download link.
We don't believe in fake/misleading download buttons and tricks. The link is always in the same place.

EightyOne Sinclair Emulator v1.39

Emulates the range of ZX home computers made by Sinclair Research Ltd.

EightyOne is an emulator for the range of ZX home computers made by Sinclair Research (and their clones) in the 1980s, primarily the ZX80 and ZX81 but also includes the ZX Spectrum models. As well as emulating the machines themselves, various add-on interfaces are supported, including storage devices, hi-res graphics, custom character sets, sound and colour cards.

EightyOne was created by Michael D Wynne. Michael is no longer actively developing the emulator, but has made the code open source so that others can continue to extend it with new functionality. This archive collates as many of the original release versions of the emulator as possible, including the source code for them where available. Versions up to 1.0a were produced by Michael, with all later versions created by others.

  • Clock accurate emulation of the ZX81 and ZX80 display mechanisms
  • Support for a wide range of add-on interfaces
  • Comprehensive debugger facilities

ZXpand Support

In real life this add-on for the ZX81 provides 32K of RAM, ZON-X compatible AY sound,
and SD card reading support, controlled through a patched ROM. In EightyOne you can
enable this board form the hardware menu by checking the ZXpand option. Ensure that
wrx hires and zon-x sound are also enabled.

Files placed in the folder 'ZXpand_SD_Card' are treated as a virtual SD card.

Press Z to get the CAT command in order to list the files on the emulated SD card.
CAT "directory name" will show files within a subdirectory.

The LOAD command is patched so files will be loaded from the virtual SD card rather
than the tape system. On a real ZXpand typing LOAD "" will invoke the tape loader
and allow files to be loaded that way. Under EightyOne emulation however this does
not work due to the way that the emulator handles the ROM patching.

For full ZXpand instructions please see the online documentation:

Click here to visit the author's website.
Continue below for the main download link.

Downloads Views Developer Last Update Version Size Type Rank
1,675 2,859 Michael D Wynne, Charlie Robson and others <img src=""border="0"> Sep 21, 2023 - 11:30 1.39 3.64MB ZIP 5/5, out of 12 Votes.
File Tags
v1.39  EightyOne  Sinclair  Emulator  
Whoa! Slow down there, Speedy.
Kindly read this and then continue to download below.

Like seeing no ads? No misleading/fake download buttons?
We like it too! This site has been kept alive for 15 years
because of people just like you who download and donate.
No one is stopping you from downloading without donating
but the site runs on the "Honor System". If your momma
raised you to be honorable, make a donation and download
'til ya turn blue. Make your momma proud!

Thank you! -Randy & Deanna (The Older Geeks)
Missouri Ozarks, USA

Monthly operating costs = $750
Donations cover operating costs first
then are set aside for future upgrades and/or
handed-over to Deanna for new shoes.


Send a check payable to Home Computer Repair LLC, 208 E. Water St. Mount Vernon, MO 65712

Recent Super Donors ($50+)
Thanks, Russell
Thanks, Home Business Services Inc
Thanks, Robert
Thanks, Robert

Recent Donors
Thanks, Henry
Thanks, Terry
Thanks, Larry
Thanks, Marvin
Thanks, Jay
Thanks, Emmett
Thanks, Bronson
Thanks, Kim
Thanks, Michael
Thanks, Priscilla

→ Download Your File ←

Click to Rate File     Share it on Twitter → Copyright (c) 2024