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Infos on Sinclair QL-Emulator QLay2Web

General remarks

• Freely usable QL-Emulator for non-commercial online use over the WWW
• Kernel based on the implementation of QLAY2 (see below)
• Necessary is a browser of 2024 or later
• Experimental implementation with WASM
• No further development planned at the moment
• Use at your own risk; no maintenance or warranty

Predefined configurations and executable software

• Please respect the usage rights of the following links
• Emulator with empty configuration
• Emulator with base configuration containing Minerva-ROM, Toolkit 2 and an empty MDV- and WIN-drive
  • Minerva is from QLAY2 (see below) and is published additionaly at https://dilwyn.qlforum.co.uk/qlrom among other ROMs
  • Toolkit 2 ist published at https://dilwyn.qlforum.co.uk/pe
  • The NFA-ROM is from QLAY2 (see below)
• Emulator configuration for booting from MDV1, whereby the MDV1-drive is bound to the WIN2-Zip-drive with support of the DEV-device
  • Before system boot the WIN2-drive should be loaded with a ZIP-file, which contains a BOOT-file for MDV1
  • The DEV-device is published as dev205.zip
  • Together with the QL-systems delivered Psion-programs like Quill or Abacus can be started with that
  • Adventures like "QL-Zeitfalle" from https://dilwyn.qlforum.co.uk/games/adventures/index.html can be executed with that configuration
  • Please respect the usage rights!
• Emulator configuration for booting from FLP1, whereby the FLP1-drive is bound to the WIN2-Zip-drive with support of the DEV-device
  • Adventures like "Voyage Of The Beano" or "Rescue Of Horan" from https://dilwyn.qlforum.co.uk/games/adventures/index.html can be executed with that configuration
  • Please respect the usage rights!

Usage

• Emulator control (Tools from left to right)
  • Load configuration
  • Save configuration
  • Pause running emulation
  • Start or continue emulation
  • Start or continue emulation with maximum speed
  • Stop the emulation (System holds configuration and can be reconfigured)
  • Reset the CPU (Warm start: ROMs and WINs unchanged)
  • Reset of the system (Cold start: ROMs and WINs as configured actually)
  • Switch on/off status display (at the moment only the speed relative to the hardware system)
  • Switch to fullscreen
• Configuration (settings with * become only actual after a restart of the system); a simple reset of the CPU is not enough
  • ROMs (*), keyboard, mouse
  • MDV-storage media in QLAY-format (please consider!)
  • For usage of the WIN-drive (*) (WIN1_, ..., WIN8_) the NFA-AddOn-ROM is necessary
    • WIN-drives (*) in form of flat standard-zip-archives for simple text oder binary files, which are at most compressed with deflate
    • WIN-drives (*) in form of QL-zip-archives or zip-archives with a QLAY-qlaydir-file with execution information for executable files

Release notes for version V0.1

• Only the core hardware of the original QL-system is implemented
  • CPU, main memory, keyboard, mouse
  • Usage of standard ROMs and AddOn-ROMs
  • Usage of MDV-storage media
  • Usage of zip-archives (WIN-storage media)
• Not implemented are amoung others: Audio, serial / parallel interface, joystick, leds
• Screen does not support flashing pixel colors
• The internal speed control of the emulation is not uniform enough to support a realistic interactive usage of keyboard and mouse
• Only a limited number of tests have been carried out on FireFox, Edge und Chrome with JS- and Minerva-ROMs and german keyboard

Used sources and tools

• QLAY-hardware core from Jan Venema (Link no longer active)
• QLAY2-Port to Windows from Jimmy Montesinos with further dokumentation and source code
• Compilation of the C-source code to WASM with emscripten
• Javascript-library JSZip
• Tools icons partly from Iconpacks and jsspeccy3

Usage rights

• Author of the Web-interface of QLay2Web is Josef Pösl
• QLay2Web may be used online without costs for non-commercial use
• Usage is at your own risk; there is no claim to warranty and/or maintenance
• In compliance with the stated conditions the release is published under GPL version 3 licence
• The online-version contains JavaScript- and modified / additional C-sources as gzip-compressed and base64-coded parts