https://emulation.gametechwiki.com/api.php?action=feedcontributions&user=Kpalser&feedformat=atomEmulation General Wiki - User contributions [en]2024-03-28T13:01:55ZUser contributionsMediaWiki 1.32.0https://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=47968Sinclair ZX81 emulators2022-07-03T12:33:14Z<p>Kpalser: EightyOne emulator has been specifically improved for accuracy with the most recent release and now has 100.0% for the CLCKFREQ score.</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum line|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95| 1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum line|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"| [[libretro]]<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|<abbr title="Free/Libre and Open-Source Software">FLOSS</abbr><br />
! scope="col"|Active<br />
! scope="col"| [[Recommended emulators|Recommended]]<br />
|-<br />
! colspan="8"|PC / x86<br />
|-<br />
| [[Clock Signal|CLK]]<br />
| align=left|{{Icon|Linux|macOS|FreeBSD}}<br />
| [https://github.com/TomHarte/CLK/releases {{clkVer}}]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[ZEsarUX]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
| {{✗}}<br />
| 110.9%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[EightyOne]]<br />
| align=left|{{Icon|Windows}}<br />
| [https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
| {{✓}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| Spud81<br />
| align=left|{{Icon|Windows}}<br />
| [https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
| {{✗}}<br />
| 114.9%<br />
| {{✗}}<br />
| {{✗}}<br />
| {{~}}<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{~}}<br />
|-<br />
| [[MAME]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [http://www.mamedev.org/release.html {{MAMEVer}}]<br />
| {{✓}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
| align=left|{{Icon|Windows}}<br />
| [https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [[No$|No$ZX]]<br />
| align=left|{{Icon|Windows|DOS}}<br />
| [http://problemkaputt.de/zx.htm 2.0]<br />
| {{✗}}<br />
| 100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zx81.vb81.free.fr VB81 XuR]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 21/05/2022]<br />
| {{✗}}<br />
| 100.5%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://freestuff.grok.co.uk/vb81/ VB81]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
| {{✗}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ beta 13]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ 4.00]<br />
| {{✗}}<br />
| 101.5%<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
! colspan="8"|Mobile / ARM<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [https://zx81-ios.weebly.com ZX81 iOS]<br />
| align=left|{{Icon|iOS}}<br />
| [https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.12.0]<br />
| {{✗}}<br />
| 100.0% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
| ?<br />
| {{✓}}<br />
| {{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]<br />
[[Category:ZX81 emulators|*]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=47967Sinclair ZX81 emulators2022-07-03T12:20:45Z<p>Kpalser: New version of iOS/iPadOS app with 100% CLCKFREQ score.</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum line|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95| 1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum line|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"| [[libretro]]<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|<abbr title="Free/Libre and Open-Source Software">FLOSS</abbr><br />
! scope="col"|Active<br />
! scope="col"| [[Recommended emulators|Recommended]]<br />
|-<br />
! colspan="8"|PC / x86<br />
|-<br />
| [[Clock Signal|CLK]]<br />
| align=left|{{Icon|Linux|macOS|FreeBSD}}<br />
| [https://github.com/TomHarte/CLK/releases {{clkVer}}]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[ZEsarUX]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
| {{✗}}<br />
| 110.9%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[EightyOne]]<br />
| align=left|{{Icon|Windows}}<br />
| [https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
| {{✓}}<br />
| 114.3%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| Spud81<br />
| align=left|{{Icon|Windows}}<br />
| [https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
| {{✗}}<br />
| 114.9%<br />
| {{✗}}<br />
| {{✗}}<br />
| {{~}}<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{~}}<br />
|-<br />
| [[MAME]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [http://www.mamedev.org/release.html {{MAMEVer}}]<br />
| {{✓}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
| align=left|{{Icon|Windows}}<br />
| [https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [[No$|No$ZX]]<br />
| align=left|{{Icon|Windows|DOS}}<br />
| [http://problemkaputt.de/zx.htm 2.0]<br />
| {{✗}}<br />
| 100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zx81.vb81.free.fr VB81 XuR]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 21/05/2022]<br />
| {{✗}}<br />
| 100.5%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://freestuff.grok.co.uk/vb81/ VB81]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
| {{✗}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ beta 13]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ 4.00]<br />
| {{✗}}<br />
| 101.5%<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
! colspan="8"|Mobile / ARM<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [https://zx81-ios.weebly.com ZX81 iOS]<br />
| align=left|{{Icon|iOS}}<br />
| [https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.12.0]<br />
| {{✗}}<br />
| 100.0% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
| ?<br />
| {{✓}}<br />
| {{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]<br />
[[Category:ZX81 emulators|*]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=44309Sinclair ZX81 emulators2022-01-14T21:33:14Z<p>Kpalser: version bump for the ZX81 iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum Line|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95| 1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"| [[libretro|Libretro Core]]<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|<abbr title="Free/Libre and Open-Source Software">FLOSS</abbr><br />
! scope="col"|Active<br />
! scope="col"| [[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="8"|PC / x86<br />
|-<br />
| [[Clock Signal|CLK]]<br />
| align=left|{{Icon|Linux|macOS|FreeBSD}}<br />
| [https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[ZEsarUX]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
| {{✗}}<br />
| 110.9%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| [[EightyOne]]<br />
| align=left|{{Icon|Windows}}<br />
| [https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
| {{✓}}<br />
| 114.3%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✓}}<br />
|-<br />
| Spud81<br />
| align=left|{{Icon|Windows}}<br />
| [https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
| {{✗}}<br />
| 114.9%<br />
| {{✗}}<br />
| {{✓}}<br />
| {{~}}<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{~}}<br />
|-<br />
| [[MAME]]<br />
| align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
| [http://www.mamedev.org/release.html {{MAMEVer}}]<br />
| {{✓}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
| align=left|{{Icon|Windows}}<br />
| [https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [[No$|No$ZX]]<br />
| align=left|{{Icon|Windows|DOS}}<br />
| [http://problemkaputt.de/zx.htm 2.0]<br />
| {{✗}}<br />
| 100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zx81.vb81.free.fr VB81 XuR]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 03/10/2021]<br />
| {{✗}}<br />
| 100.5%<br />
| {{✓}}<br />
| {{✓}}<br />
| {{✗}}<br />
|-<br />
| [http://freestuff.grok.co.uk/vb81/ VB81]<br />
| align=left|{{Icon|Windows}}<br />
| [http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
| {{✗}}<br />
| Not tested<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ beta 13]<br />
| {{✗}}<br />
| Not tested<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
| align=left|{{Icon|DOS}}<br />
| [http://www.zx81.nl/ 4.00]<br />
| {{✗}}<br />
| 101.5%<br />
| {{✗}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
! colspan="8"|Mobile / ARM<br />
|-<br />
| [https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
| align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
| [http://sz81.sourceforge.net/#downloads 2.1.7]<br />
| {{✗}}<br />
| 100.0%<br />
| {{✓}}<br />
| {{✗}}<br />
| {{✗}}<br />
|-<br />
| [https://zx81-ios.weebly.com ZX81 iOS]<br />
| align=left|{{Icon|iOS}}<br />
| [https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.11.1]<br />
| {{✗}}<br />
| 100.1% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
| ?<br />
| {{✓}}<br />
| {{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]<br />
[[Category:ZX81 emulators|*]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=34894Sinclair ZX81 emulators2020-08-16T20:49:45Z<p>Kpalser: Version bump on iOS app and improvement on accuracy score</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95|1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC / x86<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|align=left|{{Icon|Linux|macOS|FreeBSD}}<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|align=left|{{Icon|Windows}}<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|Spud81<br />
|align=left|{{Icon|Windows}}<br />
|[https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
|{{✗}}<br />
|{{✓}}<br />
|114.9%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|align=left|{{Icon|Windows|DOS}}<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|align=left|{{Icon|Windows}}<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
|[http://freestuff.grok.co.uk/vb81/ VB81]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zx81.vb81.free.fr VB81 XuR]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 1.30.3 (26/11/2019)]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile / ARM<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|align=left|{{Icon|iOS}}<br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.9.0]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.1% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
<br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=33674Sinclair ZX81 emulators2020-05-16T09:00:45Z<p>Kpalser: version bump for the ZX81 iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95|1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC / x86<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|align=left|{{Icon|macOS|FreeBSD}}<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|align=left|{{Icon|Windows}}<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|Spud81<br />
|align=left|{{Icon|Windows}}<br />
|[https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
|{{✗}}<br />
|{{✓}}<br />
|114.9%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|align=left|{{Icon|Windows|DOS}}<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|align=left|{{Icon|Windows}}<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
|[http://freestuff.grok.co.uk/vb81/ VB81]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zx81.vb81.free.fr VB81 XuR]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 1.30.3 (26/11/2019)]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile / ARM<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|align=left|{{Icon|iOS}}<br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.8.2]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
<br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=33188Sinclair ZX81 emulators2020-03-22T21:08:20Z<p>Kpalser: </p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of {{Inflation|USD|99.95|1981}}. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Platform(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC / x86<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|align=left|{{Icon|macOS|FreeBSD}}<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|align=left|{{Icon|Windows}}<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|Spud81<br />
|align=left|{{Icon|Windows}}<br />
|[https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh 0.221]<br />
|{{✗}}<br />
|{{✓}}<br />
|114.9%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD|AmigaOS}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|align=left|{{Icon|Windows|DOS}}<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|align=left|{{Icon|Windows|Linux|macOS|FreeBSD}}<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|align=left|{{Icon|Windows}}<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|align=left|{{Icon|DOS}}<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
|[http://freestuff.grok.co.uk/vb81/ VB81]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/vb81/download/vb81-full.exe 1.30]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zx81.vb81.free.fr VB81 XuR]<br />
|align=left|{{Icon|Windows}}<br />
|[http://zx81.vb81.free.fr/download/VB81_XuR_EXE.zip 1.30.3 (26/11/2019)]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile / ARM<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|align=left|{{Icon|Zaurus|Dingoo|Wiz}}<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|align=left|{{Icon|iOS}}<br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.8.0]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
<br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=31420Sinclair ZX81 emulators2019-11-20T18:16:08Z<p>Kpalser: version bump for the ZX81 iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of <abbr title="$236 in 2018 money">$99.95</abbr>. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[Spud81]]<br />
|Windows<br />
|[https://1drv.ms/u/s!Ar4VkKtk_3JzgQFkPzv4WgWTMHNc?e=trhIHh] 0.221<br />
|{{✗}}<br />
|{{✓}}<br />
|114.9%<br />
|{{✓}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[IOS emulators|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.7.2]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=30900Sinclair ZX81 emulators2019-09-14T16:21:39Z<p>Kpalser: Version bump for the iOS app</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of <abbr title="$236 in 2018 money">$99.95</abbr>. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[IOS emulators|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.7.0]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=29750Sinclair ZX81 emulators2019-05-30T07:03:54Z<p>Kpalser: version bump for the ZX81 iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of <abbr title="$236 in 2018 money">$99.95</abbr>. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
! colspan="7"|PC<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.10 (Unofficial)]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|101.5%<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[IOS emulators|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.6.0]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=29229Sinclair ZX81 emulators2019-04-08T18:18:11Z<p>Kpalser: Just a version bump for iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of <abbr title="$236 in 2018 money">$99.95</abbr>. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|+PC<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.9]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{~}}<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[IOS emulators|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.5.3]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=25815Sinclair ZX81 emulators2019-01-26T14:29:17Z<p>Kpalser: </p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation released on March 5, 1981, and had a retail price of <abbr title="$236 in 2018 money">$99.95</abbr>. It had a Z80 at 3.25 MHz with 1KB of RAM.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|+PC<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.9]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases {{ZEsarUXVer}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{~}}<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ {{EightyOneVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{~}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[IOS emulators|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.5.2]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating. Also has huge lists of resources for all things ZX80/81 related.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=User_talk:Kpalser&diff=25814User talk:Kpalser2019-01-26T14:21:07Z<p>Kpalser: Answering LilShoot’s question</p>
<hr />
<div>How did you get an emulator on the App Store? --[[User:LilShootDawg|LilShootDawg]] ([[User talk:LilShootDawg|talk]]) 13:11, 25 December 2018 (EST)<br />
<br />
So long as i) it does not have any functionality to load program files that are not included within the app and ii) you state that you have permission for the content, then Apple will not have any objections. --[[User:Kpalser|Kpalser]] ([[User talk:Kpalser|talk]]) 09:21, 26 January 2019 (EST)</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=User:Kpalser&diff=24565User:Kpalser2018-12-25T16:10:14Z<p>Kpalser: initial self description</p>
<hr />
<div>'''Hello!'''<br />
<br />
I'm the author of the ZX81 iOS emulator: https://zx81-ios.weebly.com</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=24564Sinclair ZX81 emulators2018-12-25T15:53:56Z<p>Kpalser: podcast link added to the notes discussing the ZX81 emulators</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|+PC<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ 1.12]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases 7.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.9]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[wikipedia:IOS|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.5.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
* [http://floppydays.libsyn.com/floppy-days-86-the-sinclair-zx80-part-ii-with-earl-evans floppydays.libsyn.com] (Podcast episode describing the emulators available for the ZX80 / ZX81 which also uses the Carlo Delhez's clkfreq rating)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Talk:Sinclair_ZX81_emulators&diff=24563Talk:Sinclair ZX81 emulators2018-12-25T15:48:07Z<p>Kpalser: ZX81 iOS recommended left in a neutral state</p>
<hr />
<div>== ZEsarUX as recommended ==<br />
<br />
My understanding is that ZEsarUX doesn't really emulate the ZX81; to run ZX81 software it emulates the ZX Spectrum 128kb with a ZX81 simulation ROM and a few additional pieces of hardware. But the video system it emulates is entirely distinct from that of the original hardware and, as a result, huge chunks of software (especially anything with a 'hi-res' video mode) don't work as on a real ZX81.<br />
<br />
If my understanding is correct (?), should ZEsarUX really be recommended as a ZX81 emulator? It's a fine piece of software for emulating the Spectrum and QL, but I'm not sure about the ZX81 side of things. — [[User:Tommy|Tommy]] ([[User talk:Tommy|talk]]) 12:11, 21 March 2018 (EDT)<br />
<br />
== ZX81 iOS recommended left in a neutral state ==<br />
<br />
I'm the developer behind the ZX81 iOS app and I have added it to the list today. I've left the recommend column in a neutral state for two reasons: i) It's not my place to say whether it should be recommended or not ii) Many users will be frustrated about the functionality to load external programs being unavailable due to the Apple Guidelines (more info / rant on the FAQ web link for the app). --[[User:Kpalser|Kpalser]] ([[User talk:Kpalser|talk]]) 10:48, 25 December 2018 (EST)— [[User:Kpalsser| Kpalser]] ([[User talk: Kpalser |talk]])</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=24562Sinclair ZX81 emulators2018-12-25T15:27:00Z<p>Kpalser: Speed accuracy figure for No$ZX81 emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|+PC<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ 1.12]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases 7.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.9]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.1% <br/><ref group=N name=NoCashSpeed>After turning off the simulated hardware improvements that were not standard in the original computer.</ref><br />
|{{~}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[wikipedia:IOS|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.5.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
<br />
[[Category:Computers]]</div>Kpalserhttps://emulation.gametechwiki.com/index.php?title=Sinclair_ZX81_emulators&diff=24559Sinclair ZX81 emulators2018-12-25T10:03:35Z<p>Kpalser: Addition of the ZX81 iOS emulator</p>
<hr />
<div>{{Infobox console<br />
|title = Sinclair ZX81<br />
|logo = 1024px-Sinclair-ZX81.png<br />
|developer = Sinclair Research<br />
|type = [[:Category:Computers|Computers]]<br />
|generation = Z80-based home computers<br />
|release = 1981<br />
|discontinued = 1984<br />
|predecessor = Sinclair ZX80<br />
|successor = [[ZX Spectrum emulators|ZX Spectrum]]<br />
|emulated = {{✓}}<br />
}}<br />
The '''[[wikipedia:ZX81|ZX81]]''' was a Z80-based home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation.<br />
<br />
It was the successor to Sinclair's ZX80 and the predecessor of the [[ZX Spectrum emulators|ZX Spectrum]] and was hugely successful, and more than 1.5 million units were sold before it was discontinued.<br />
The ZX81 was designed to be small, simple, and above all cheap, using as few components as possible to keep the cost down.<br />
<br />
Video output was to a television set rather than a dedicated monitor. Programs and data were loaded and saved onto audio tape cassettes. It had only four silicon chips on board and a mere 1 KB of memory. The machine had no power switch or any moving parts and used a pressure-sensitive membrane keyboard for manual input.<br />
<br />
Its distinctive design brought its designer, Rick Dickinson, a Design Council award.<br />
The ZX81 could be bought by mail order in kit form or pre-assembled. It was the first cheap mass-market home computer that could be bought from high street stores, led by W.H. Smith and soon many other retailers.<br />
<br />
The ZX81 marked the first time that computing in Britain became an activity for the general public, rather than the preserve of businesspeople and electronics hobbyists. The ZX81's commercial success made Sinclair Research one of Britain's leading computer manufacturers and earned a fortune and an eventual knighthood for the company's founder, Sir Clive Sinclair.<br />
<br />
==Emulators==<br />
{| class="wikitable" style="text-align:center;"<br />
|+PC<br />
|-<br />
! scope="col"|Name<br />
! scope="col"|Operating System(s)<br />
! scope="col"|Latest Version<br />
! scope="col"|[[libretro|Libretro Core]]<br />
! scope="col"|Active<br />
! scope="col"|Relative Speed<ref group=N name=RelativeSpeed>As calculated by Carlo Delhez's clkfreq, originally distributed with his XTender emulator. The ZX81 has relatively complicated timing mechanics, depending on signalling of WAIT during NMI; relative speed is a measurement of how closely an emulator matches a real machine in terms of clock cycles spent processing within a frame. 100.0% denotes the same execution speed as a real machine.</ref><br />
! scope="col"|[[Recommended Emulators|Recommended]]<br />
|-<br />
|[[EightyOne]]<br />
|Windows<br />
|[https://sourceforge.net/projects/eightyone-sinclair-emulator/files/ 1.12]<br />
|{{✓}}<br />
|{{✓}}<br />
|114.3%<br />
|{{✓}}<br />
|-<br />
|[[ZEsarUX]]<br />
|Multi-platform<br />
|[https://github.com/chernandezba/zesarux/releases 7.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|110.9%<br />
|{{✓}}<br />
|-<br />
|[[Clock Signal|CLK]]<br />
|macOS and UNIXalikes<br />
|[https://github.com/TomHarte/CLK/releases {{clkver}}]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|UNIX, Windows, [[Amiga emulators|Amiga]]<br />Linux, macOS<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7] <br/>[http://rullf2.xs4all.nl/sz81/ 2.3.9]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[[MAME]]<br />
|Multi-platform<br />
|[http://www.mamedev.org/release.html {{MAMEVer}}]<br />
|{{✓}}<br />
|{{✓}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[[No$|No$ZX]]<br />
|Windows, DOS<br />
|[http://problemkaputt.de/zx.htm 2.0]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{~}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/mme-review.htm MTMW] <br/><small>(aka 'MulTiMachine')</small><br />
|Windows<br />
|[https://www.zophar.net/sinclair/multi-machine.html 1.30b]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://zxplanet.emuunlim.com/xtender-review.htm XTender2]<br />
|DOS<br />
|[http://www.zx81.nl/ beta 13]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
|[http://www.retroisle.com/sinclair/zx81/emulators.php ZX81 Emulator] <br/><small>(Paul Robson)</small><br />
|DOS<br />
|[http://www.zx81.nl/ 4.00]<br />
|{{✗}}<br />
|{{✗}}<br />
|Not tested<br />
|{{✗}}<br />
|-<br />
! colspan="7"|Mobile<br />
|-<br />
|[https://sourceforge.net/projects/sz81/ SZ81] <br/><small>(xz80 & z81 based)</small><br />
|[[wikipedia:Sharp Zaurus|Sharp Zaurus]], <br/>GPH GP2X/Wiz, <br/>Dingoo A320<br />
|[http://sz81.sourceforge.net/#downloads 2.1.7]<br />
|{{✗}}<br />
|{{✗}}<br />
|100.0%<br />
|{{✗}}<br />
|-<br />
|[https://zx81-ios.weebly.com ZX81 iOS]<br />
|[[wikipedia:IOS|iOS]], <br/>Devices with METAL framework support <br />
|[https://itunes.apple.com/us/app/zx81/id1180117434?mt=8 1.5.1]<br />
|{{✗}}<br />
|{{✓}}<br />
|100.6% <br/><ref group=N name=ZX81iOSSpeed>Provided by Kevin Palser the developer (and author of this note) because the app cannot load external programs, such as Carlo Delhez's clkfreq, due to Apple developer restrictions for iOS. Permission to include clkfreq in the app cannot be granted because Dr Delhez sadly passed away in 2015.</ref><br />
|{{~}} <br/><ref group=N name=ZX81iOSNeutered>This app is neutered as loading of external programs into emulator apps from the App Store is prohibited by Apple. However, it does have a growing selection of programs included with permission granted by their authors.</ref><br />
|}<br />
<br />
<references group=N /><br />
<br />
==Notes==<br />
<br />
* [http://www.retroisle.com/sinclair/zx81/emulators.php www.retroisle.com] (Page showing five old emulators for ZX81, and sometimes the Spectrum and other machines)<br />
* [https://www.worldofspectrum.org/faq/emulators/other.htm www.worldofspectrum.org's list] (Short list of old Science of Cambridge MK-14, ZX80, ZX81 / TS1000, Sinclair QL and Jupiter ACE emulators)<br />
* [http://zx81.eu5.org/emulators.htm zx81.eu5.org] (Brazilian ZX81 fan-site - emulators list page is in English. Shows list of old ZX81 emulators & links to other resources.)<br />
<br />
[[Category:Computers]]</div>Kpalser