Print view; Search. byte bNormalShifted; // Red Symbols & Words (replaced by Symbols) byte bGraphics; // Standard ZX keyboard but should be used with CTL characters. p . UnrealSpeccy. O. ZX-81 Emulator 2. Z80 corrupted snapshot loading from ZXSP emulator with additional header of 31 byte size Added ZSF support for Timex TS2068, MK14, Chrome, Prism, Chloe, Sam Coupe Added path setting where to download files from the speccy and zx81 online browser Added disk image browsing from storage MMC/IDE menus Added PZX load support as standard tape Name: Multimachine Emulator Version: 1. . Hi, I was looking for a ZX81 for Android, I found mentions of Zed EX (about 10 years ago). . 675 Topics. VOC, . DOWNLOAD OPTIONS download 1. z81 - Sinclair ZX81 and ZX80 emulator. This is the Z80 Emulator Version 1. It has some other noteworthy features, like the ability to download all these files online over WiFi, the. I just received my Propstick last week and I'm pretty impressed with the video and graphics capabilities to say the least. The pico-zxspectrum provides basic 48k/128k ZX Spectrum emulation on the Raspberry Pi RP2040 with DVI video output. In this part, we'll look at four more of the 1980's major home computers: VIC-20 and C64 from Commodore, Sinclair ZX81 and Timex/Sinclair 1000, and Atari 400/800. JtyOne was based on Mike Wynne's EightyOne Emulator (written in C#) that was notable for being able to accurately emulate ZX81 games that offered pseudo high-res graphics. ZX81 Collection, the largest online collection of Sinclair ZX81 and TS1000 games, software, books and hardware. Cronosoft – Software house for publishing new and unreleased games for retro computers and consoles. Retro-Computing - Sinclair ZX81 Online Emulator Explore few programs created for the Sinclair ZX81. This app focuses on the Sinclair ZX81 experience and is loaded with. Super Mario Bros. Tesla PMD-85. Download sz81 for free. dsk and . g. BoycottAdvance Online (BAO) [Gameboy Advance Emulator in Java] CottAGE (Cott Arcade Generic Emulator) [Multiple Arcade Emulator in Java] PlayScott (the Online Arcade JukeBox) [Multiple Arcade Music Emulator in Java] GPCott [GamePark 32 Emulator in Java] PotatoSMS [Master System/GameGear Emulator in. A fork of Simon Holdsworth's JtyOne JavaScript Emulator for the Sinclair ZX81. The ROMs are not included with the software, and have to be obtained separately. WinZ80: A basic emulator for the. by bkumanchik. Sinclair ZX81 emulator for PSP Saturday, November 10. Need a Vsync or other 50/60 Hz time reference. Access over 3000 games online! All Sincalir models are emulated, 16k, 48k, 128k,+2, and +3. Taper. Maps screen position to joystick position. ). Sinclair Spectrum. 1) Program For a 1K ZX81. Target Platforms: - Ubuntu Touch - Sailfish OS Changelog: V0. Instructions are also available during the introduction preamble which includes details on the scoring. Currently, emulation for this item does not auto-start. K. Fortunately in the CP/M world very few programs actually rely on having a z80. The 4K ROM version features a custom loader routine, based upon the Volume Tester Utility, to provide visual feedback when loading the game. . By the Java-Emu Team. * Translated from EightyOne - A Windows ZX80/81/clone emulator. The final piece to the ZX81 keyboard puzzle is to get the Raspberry Pi / AZ15 to boot like it's 1981, arriving straight at the Sinclair "K" prompt after being switched on. With more than 1. The emulator covers all of the functionality of the ZX80 and ZX81, including accurate timing of the display update to support the high resolution graphics tricks some programs used. ZX81 - IOS An emulator for the ZX81 for your iPhone or iPad The best emulation of a ZX81 on an iPhone or iPad. The game was initially released by J. About; Team; SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900; Resources. EightyOne: A popular emulator that emulates not only the ZX81, but also the ZX Spectrum and ZX Spectrum Next. A lot of the ZX81 software has been converted to . More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Based on the dingux version of the emulator. As well as emulating the machines themselves, various add-on interfaces are supported, including storage devices, hi-res graphics, custom character sets, sound. With the performance improvements on the PI 3, the choice of emulator is now wide open, a nice change indeed. DATASSETTE-Micros e videogames clássicos, com download de jogos, manuais, revistas, etc. Commodore. cas, . Support for up to 320 by 240 pixel display, i. They are known as the Model I, Model II, Model III, Model 4, Model 4P, Model 4D, Model 12, Model 16 and Model 6000. As with the 'ZX81' ROM cartridge, the display and cassette handling routines are. As MONS is executed, it replaces back the changed instruction with the original one (and of course store in memory the current state of all Z80 registers), so when the disassembler is invoked to give you a assembly. Snapshot files allow users to save. 15 Retro computing emulators that run online! Relive the early days of computing in your browser (but do remember to pause to eat and sleep). t81: Emulator: lr-81. The emulator can be used subject to the following. Use on Other Web Sites. Greye Software) Notes. The Sinclair ZX81 is presented in Swedish in the file zx81_beckman. EightyOne currently emulates: Sinclair ZX Spectrum 16k/48k. Radio Shack TRS-80. out. December 31, 2015. The Machine which was my first computer. The ZX Spectrum also has a Videopac/Odessey2 emulator coded in 2000. Open the . Only the keys required from the ZX81 keyboard are shown. Aside from improved ZX80/ZX81 emulation, it's now also supporting the Lambda and Jupiter ACE, alongside with the complete ZX Spectrum series (though the older monochrome Sinclair models are still looking more fascinating. 2006-07-16 11:57 edited 2006-08-10 20:04 in Propeller 1. The emulator can be used subject to the following license: /* JtyOne - A JavaScript ZX81 emulator. Excellent emulator: X-Tender: The best ZX emulator for PC compatibles: ZX 81 Homepage: ZX81: XZ81: And other ZX-81 emulators there. If you click on the bottom part of the touch screen you'll be presented with a menu where you can choose a tape, reset the ZX81 and set the sticky state of the shift key on or off. EightyOne is an emulator for the range of ZX home computers made by Sinclair Research (and their clones) in the 1980s, primarily the ZX80 and ZX81 but also includes the ZX Spectrum models. plus-circle Add Review. You can download it from here. However, it will still run on the ZX81. There is zxlist (by Jack Raat iirc) and it will convert . MONS 3 in the ZX Spectrum, for example, changes the instruction at the break address by a CALL to an entry point in MONS. ZX-Key: New Lite Version. 81, . This produces hw. e. To play the ZX81 or Timex 1000/1500 games you will need an emulator which you can download from any of the following sites. DOWNLOAD OPTIONS download 1. The emulator doesn't load individual . P format, but should also be able to load . I’ve been using this app now since December 2016. Or, you can use the same C program and build it for a Spectrum like this: zcc +zx -lndos -create-app hw. There are also many original games for the Zeddy, check Bob's Stuff for some high quality games. Hot on the heels of the Speccy emulator, is an emulation of the Spectrum's older brother, the ZX81. PlayZX is an Android application that lets you select from thousands of Sinclair ZX Spectrum games and play them through the headphone jack to load them onto your Speccy. The dz80 disassembler by Mark Incley. sz81 is a Sinclair ZX80/ZX81 emulator very much based upon the work of Ian Collier's xz80 and Russell Marks's z81 but employing the highly portable SDL and including additional functionality and features for desktop computers and portable devices. ZX81 Tapes, Hardware and Books Collection. PUBLICATIONS. Announcing a big revamp of my site, including a new JavaScript ZX81 Emulator (based on EightyOne and FUSE's Z80 core). Handles RAM, EPROM and Intel Flash cards on Z88. sz81 - a ZX81 and ZX80 emulator using SDL This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. In the following video, we run World Championship Manager immediately. Description. Physical joysticks supported through SDL2 or the Linux joystick API. The classic ZX81 games are all over the Internet, but check the colorized. pdf . ini file saved by the previous version, which is located in a hidden folder under your user account name. Welcome to a taste of early 1980s home computing. I have a good chunk of it working, I get it up to the 'K" prompt but I am stuck with keyboard input. The project. EightyOne currently emulates: Sinclair ZX Spectrum 16k/48k Amstrad/Sinclair Spectrum +2 Amstrad/Sinclair Spectrum +2a Amstrad/Sinclair Spectrum +3 Retro-Computing - Sinclair ZX81 Online Emulator Explore few programs created for the Sinclair ZX81. zip Virtually complete ZX Spectrum 48/128 emulator. User list. The ZX Spectrum emulator for Microsoft® Windows® - 9/10! Reviewed in the Micro-Mart. To associate your repository with the zx81 topic, visit your repo's landing page and select "manage topics. You load it into your emulator, run it, then use the emulator's audio-reading capability through the sound card to actually read in the ZX81 program from your cassette. ピルってどんな薬?. This program is actually a Spectrum . 0. The emulator can be used subject to the following license: /* JtyOne - A JavaScript ZX81 emulator. Download consoles computers Roms, for free and play handheld arcade games on your devices windows pc , mac ,ios and androidThe Sinclair ZX81 was my first computer, I learned how to program (in basic) using this machine in late 80's. Download. The machine was the brainchild. It's a ZX Machines Emulator for UNIX based operating systems (and Windows), including all the Sinclair computers: Microdigital TK80, TK82, TK82C, TK83, TK85, TK90X (Portuguese and Spanish), TK95 (Portuguese and Spanish) ZEsarUX source code and binaries are distributed under GNU GPL license. Talking about which of them (Sinclair. This web site contains my own collection of ZX81 and TS1000 tapes, hardware and books that I have built up over the last ten years or so, almost entirely from buying items on eBay, along with a small number of kindly donated items. jspspemu by Carlos Ballesteros Velasco – PSP 2014. It saves and loads programs in Xtender’s . 3. It was a huge success. The ZX80 can also be emulated. Added references from Sinclair User Supplement (Spectrum User) from issues 6 and 7. Download EightyOne 1. For those who haven't seen previous release, XZ81 is an emulator of the Sinclair ZX81 computer running on Un. The emulator can be used subject to the following license: /* JtyOne - A JavaScript ZX81 emulator. 39 - An open-source emulator for ZX home computers created by Sinclair Research Ltd, including ZX80 and ZX81 and other ZX spectrum models. EightyOne is an emulator for the range of ZX home computers made by Sinclair Research (and their clones) in the 1980s, primarily the ZX80 and ZX81 but also includes the ZX Spectrum models. Name: ZX81 Emulator Version: 4. "Block-Buster" (16, WRX) By Greg Harder. TZX (up to v1. However, the quality and stability of online play can vary depending on the emulator and the game being played. ZX Spectrum 48K Tiny Emy - by Andre Weissflog ; ZX Spectrum 128 Tiny Emu - by Andre Weissflog ; Sony. As well as emulating the machines themselves, various add-on interfaces are supported, including storage devices, hi-res graphics, custom character sets, sound. You can help Emulation General Wiki by expanding it. 95 USD ($302 in 2021). This emulator can handle the TZX file format and includes a Program Finder to download directly from WoS! [30/11/10] ZX4ALL beta 2 by Chui. Can run ZX81 programsdirectly from the DOS commandline, or by double-clicking a P-file in Windows9x/NT (so youdon't have to type a LOAD ". When using single touch one first presses Shift and then the key. 1; ZX-81 Colecovision emulator. 44 for 32 bit Windows (12:18 PM 12/14/20) The Z80 Emulator is a full featured emulator designed to run CPM, Intended for Hobbyists. zip: Sort of an experimental unfinished ZX81 emulator - Windows: zx81. The ZX Spectrum emulator for Microsoft® Windows® - 9/10! Reviewed in the Micro-Mart. 20, since that is the last version that runs on 68K-architecture. Some display stuff is slow due to DOSBox not ZXSimulator. dsk images can be loaded via the "Local File" button. Greye Software) Notes. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Makefile","path":"Makefile","contentType":"file"},{"name":"file2c. To associate your repository with the zx-spectrum-emulator topic, visit your repo's landing page and select "manage topics. Some additional commands to inspect and call routines in the ZX81 and the Z80 processor environments. Nothing more, nothing less. . It is one of those home computers very popular in the '80s and affordable (£49. The ZX81 uses the LOAD command to interact with a remote FTP server. There are actually two versions - z81 (for svgalib), and xz81 (for X). The Standard layer has 3 main modes and each of these has a SHIFT layer, this gives access 98% of the keys to be found on a. The ZX81 is a home computer that was produced by Sinclair Research. It has a built-in encoder Done: 2000 – 0. Super Mario Kart. 2 - ZX81 Emulators. Any other options ? Thanks, Luis. ini, either a ZX80 program can be loaded, or the computer type ZX80 can be selected from the Modify menu. noddybox has released DS81 v1. . TZX file. I'll try them out. Granted I am using a cheap USB Capture device from Amazon, but it did the job just fine with my Wii. The emulator can be used subject to the following license: /* JtyOne - A JavaScript ZX81 emulator. QML based ZX81 Emulator ===== Project based on SZ81/Z81 emulators (backend) and QVBAM (frontend). Chris Young (Amiga OS) XavSnap Win32 debugging /manager. 0 (SLIM + IR) Hi All, Here is a new version of PSPZX81 the ZX-81 emulator for PSP. o and . A. 5 million units by the end of it's life. 95 in kit form and £69. Add this topic to your repo. ZX81 Emulators. It was released in 1981, retailing for $99. Spectrum emulation when used with appropriate ROM. My ZTE Light costed the same amount as the orginal ZX81. This emulator can handle the TZX file format! [04/09/10] ep128emu v2. Video capture question. Last post Re: My first Z80 (TS1000/ZX81…. ZEsarUX Features: * Runs on any Unix system and Windows: tested on. Thanks. The ZX81 is a home computer released by Sinclair in 1981. Frogger was positively received as one of the greatest video games ever made and followed by. 2007 PSPZX81: A Sinclair ZX81 emulator for PSP v1. ZEsarUX (Cesar Hernandez) ZX80 / ZX81 emulator for Linux, Mac OS X, Windows. by Fruitcake » Mon Dec 17, 2018 2:11 pm. Next File ZEsarUX. You load it into your emulator, run it, then use the emulator's audio-reading capability through the sound card to actually read in the ZX81 program from your cassette. 00 Release Date: 1997 Author: Paul Robson vb81 - Sinclair ZX81 Emulator Hot on the heels of the Speccy emulator, is an emulation of the Spectrum's older brother, the ZX81. You can spend a lot of time on [Trucco’s] site. )- nice interface for portrait mode. A series of live-streams where we'll be coding a Pi PICO simulator from scratch. Released on 5 March 1981, the ZX81 was the successor to 1980's ZX80 and, like its predecessor, was based around a Z80 CPU. JtyOne was based on Mike Wynne's EightyOne Emulator (written in C#) that was notable for being able to accurately emulate ZX81 games that offered pseudo high-res graphics like Forty Niner and Rocket Man from Software Farm. Whoosh! Who would have believed this? Manic Miner for the good old ZX81? And it's great too! Eleven screens of hi-res graphics! One of the best games ever fo. Emulator Online has all the retro games from Super Nintendo (SNES & NES), SEGA (Genesis & Mega Drive), Game Boy (GBA, GBC, GB), N64, Nintendo DS and Neo-Geo Games. cd ~/Files/emulation/zx81 #Set az15 keyboard options, if you haven't built a az15 the comment this out. Super Mario Bros. ZEsarUX a cross platform ZX computer emulator with binaries are available for Windows, Debian, Raspian & Mac OS X. eNGE. This page was last edited on 12 May 2022, at 23:57. A ZX81 emulator, written in Actionscript 3. Details about the bug fixes made to the emulator are summarised in the change history text file included within the release distribution for the new version (version 1. k. html. For this there are two options, either connect directly into the heart of the machine replacing the existing membrane keyboard, or build an external expansion interface card for ZX81 and keyboard. Local . Para usar, acesse o link a seguir:. For example, an assembly routine may be single-stepped. The content is provided for educational purpose, not for entertainment purpose. Games. . This year (2020) it's exactly 40 years ago that the Sinclair ZX80 was introduced. Emulates 50Hz and 60Hz display. In my opinion:PROS:- it works. With the basic idea of the keyboard at hand, I needed a way to connect it to a ZX81. FUSE is a ZX Spectrum emulator that provides accurate emulation of various models, including the 16K, 48K, 128K, +2, +2A, and +3, including the NTSC variant. This is a ZX-Spectrum emulator for Windows 2000. Online ZX Spectrum emulator in Javascript | F9 – menu | F11 – full screen | Ins – games. It was first released in the United Kingdom on 23 April 1982. 3. The developer has since then expanded it with extra features and functionality. 2008-01-09 00:40 edited 2009-10-17 00:48 in Propeller 1. Download and extract ds81. zx81-javascript-emulator. 02 Version 1. 95 for an assembled computer. Emulated Machines. CS107E-GB-Emulator (Nintendo Game Boy) Created by students for a computing class at Stanford, the CS107E-GB-Emulator runs on an original Raspberry Pi (you probably won’t get it running on a Raspberry Pi 4). Virtual keyboard with several adjustable properties; Control bar with icons for regularly. k. This is the USA version of the game and can be played using any of the Mame emulators available on our website. Demonstration and discussing the how much work was invo. Views 860; Downloads 621; Submitted February 27, 2017; Published February 27, 2017; File Size 250. Transfers actual ZX81 tape audio into . The emulator can be used subject to the following license: /* JtyOne - A JavaScript ZX81 emulator. EMULATOR KEYMODE should use bNormal only. SZ81 (Amiga / Sharp Zaurus / GPH GP2X We have received. The goal of this section is to act as a digital museum, easily accessible to artists, educators, students or any curious. It's a bit sluggish on a real ZX81, and benefits from a moderate speed increase, as is possible using emulators. Chris Young (Amiga OS) XavSnap Win32 debugging /manager. ZX81 Emulator. . zip: ZX81 emulator - DOS: mtmw130b. MSVC Project at /zx80_vc/ folder. Name: Multimachine Emulator Version: 1. The ZX81 was the first computer I ever encountered - my uncle had built one from a kit and showed it to me when I was seven. net. There have been a number of requests asking where to get the case, all the parts etc, so after ironing out a couple of minor issues I've made the Case available on Shapeways, and below is detailed most of. The operation of the ZX80 is very similar to the ZX81 and this allows the principles employed to produce the 'ZX81' ROM cartridge to be used to create a 'ZX80' ROM cartridge. Thanks. The Sinclair ZX81 was an extremely spartan home computer produced in the early 1980's. I've always wanted a ZX81 emulator with an IDE that single steps Basic and Assembly and is able to dump the contents of variables like IDEs such as Visual Studio. 1). Play the UNBELIEVABLE games for the ZX81 and the Timex 1000/1500. Many games are playable. There are. Due to a bug in the emulator, you will have to set Player 2's controller type. This system scrapes metadata for the “zx81” group and loads the zx81 set from the currently selected theme, if. It also uses the Adafruit supported TinyUSB project. xtndr093. Tesla PMD-85. cd ~/Files/emulation/zx81 #Set az15 keyboard options, if you haven't built a az15 the comment this out. After loading JSZeddy, it is switched off by default, and may be switched on by using the "Start" button, or clicking on the screen. The ZX80 can also be emulated. Play emulator online within your browser. 避妊薬としての利用のほか、生理不順を解消し生理痛を抑える効果もあるため、避妊薬としてだけでなく生理の悩みを解消する目的で、多くの女性が. _Pink_cs Scanner Internet Archive Python library 2. Using ANSI C to emulate a Z80 CPU, then adding hardware emulation for a 1980s Sinclair ZX81 computer. sz81 - a ZX81 and ZX80 emulator using SDL This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Pin 4 - 8: Column lines on the ZX81 keyboard matrix. R. Mike Wynne's ZX81 emulator, EightyOne is also using Fuse's Z80 core. Online version of Elite for ZX Spectrum. The guts of the loader is a TZXDuino, a Spectrum tape emulator related to the Arduitape. for PC (Windows) Name: Multimachine Emulator Version: 1. ZEsarUX or MESS etc). JSSpeccy by Matt Westcott – ZX Spectrum 2008; js-zx8x by. I feel the best approach is to use an interrupt at each. 2 RC1 is released. This article needs some TLC. The source for the JtyOne emulator is available under the GPL, as required by the EightyOne source. I've always wanted a ZX81 emulator with an IDE that single steps Basic and Assembly and is able to dump the contents of variables like IDEs such as Visual Studio. p uboot. es. Home; Updates; Emulator;. Emulators. The ZX81 / TS1000 Emulator is a software for Linux-based VGA PCs that emulates the Sinclair ZX81 or the Timex TS1000 machines. EightyOne is an emulator for the range of ZX home computers made by Sinclair Research (and their clones) in the 1980s, primarily the ZX80 and ZX81 but also includes the ZX Spectrum models. No SDcard or USB keyboard yet alas. bin, . SNA file. In my case, the listing was saved to a file called uboot. Emulator zx81 Emulator_ext p Identifier ZX-81_Video-View_1981_Video_Software Scanner Internet Archive Python library 2. M. ピルとは一般的に経口避妊薬と呼ばれていて、 予定外の妊娠を防ぐための薬 です。. Of course, building a circa-1980-something computer from new parts is a bit. Tem também o Sinclair Infoseek, uma. Also, are there any ZX81 emulator file formats which are equivalent. I've tested the emulator on iPad and iPhone and a couple of Android phones, would welcome feedback on any issues. Giemme Posts: 85. The emulator uses adapted versions of js-unzip and js-inflate to access TZX files within ZIP files. zip: Multi-Machine Emulates a whole range of 8 bit machines! Including of course the ZX81 - Windows The ZX81 was a hugely successful Z80-based home computer produced by Sinclair Research and manufactured in Scotland. Greye and programmed by Malcolm Evans and released in 1981 for the Sinclair ZX81 platform with the 16 KB memory expansion. p, . CTimex/Sinclair 1000. emulator sinclair emulation zx81 timex zx80 sinclair-basic timexcomputer Updated Jan 24, 2023; C;. . It was released in 1981, retailing for $99. To make picozx81 emulate a ZX80, without changing config. You do not have the required permissions to view the files attached to this post. Contribute to abaffa/zx80_emulator development by creating an account on GitHub. Donkey Kong Country. It sold over 1. Play online: 3D Monster Maze with the JtyOne ZX81 emulator, with a touch keyboard for iPhone, iPad, Android mobiles and tabletsEmulating the Sinclair ZX81 in JavaScript This site demonstrates (a minor fork of) Simon Holdsworth's JtyOne JavaScript Emulator. Super Mario World. The rename to Spectrum was done to. 1K ZX Chess ZX81 Collection entry with the original inlay scan and program listing. Cronosoft – Software house for publishing new and unreleased games for retro computers and consoles. Source and binary packages are available for the GP2X (GPH or Open2x) and. Sinclair ZX81. plus-circle Add Review. Yes, I coded an emulator in 1997 and rewrote it in 2020 with the knowledge I got from coding games on the ZX81 between 2011 and 2020. The new version is faster, but still machinecode still can’t run on full speed. In this journal entry I introduce my ZX81 ROM emulator (i. A latency-hating emulator of 8- and 16-bit platforms: the Acorn Electron, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, Sega Master System, Sinclair ZX80/81 and ZX Spectrum. Speccy is really simple to use and most of the time will configure itself to emulate the best Spectrum model for a given game archive. Development. ZEsarUX is Open-Source and runs on Windows, Mac OS X and Linux. 2 frontend. sz81 is a Sinclair ZX80/ZX81 emulator very much based upon the work of Ian Collier's xz80 and Russell Marks's z81 but employing the highly portable SDL and including additional functionality and features for desktop computers and portable devices. 2068 Emulator Board. The ZX81 is a home computer released by Sinclair Research back in 1981. SNA emulator format (depending upon your chosen emulator). You can download it from. sZ81 - a ZX81 and ZX80 emulator using SDL. The emulator uses adapted versions of js-unzip and js-inflate to access TZX files within ZIP files. My “ZX81 Classic. 5MHz chewing gum, not exactly a quartz oscillator, in fact, my oscilloscope tells me that my ZX81 is running at 3. Supported tape file formats are .