MSX

Code Example

<div style="width:640px;height:480px;max-width:100%">
        <div id="game"></div>
      </div>
<script type="text/javascript">
    EJS_player = '#game';
    EJS_biosUrl = ''; // Url to Bios file
    EJS_gameUrl = ''; // Url to Game rom
    EJS_core = 'msx';
</script>
<script src="https://www.emulatorjs.com/loader.js"></script>

Bios

You can download the 'Databases' and 'Machines' folders from an official full standalone blueMSX emulator installation. Get blueMSXv282full.zip near the bottom of the page.
Compress the 'Databases' and 'Machines' Folders to 7z or zip archive.