https://archives.loomcom.com/contraltojs/

ContrAltoJS Xerox Alto Emulator

Don't be alarmed. When using this page, your mouse and keyboard are
being used by the emulator, so your normal keyboard shortcuts will
probably not work.

[games.dsk         ] Boot Stop Reset [ ]Captive mouse

Usage

  * Select a disk to boot from the pull-down menu, then click Boot
  * To see all files on the pack, type a single quetsion mark at the
    prompt. e.g.,
    >?
  * To see only runnable programs, type:
    >*.run?
  * To run a program, just type its name and hit ENTER. e.g.,
    >trek
  * Checking "Captive Mouse" will cause the emulator to capture the
    mouse cursor when you click the screen and release it only when
    you press ESCAPE. This is useful for games that expect relative
    mouse motion.

Running Smalltalk 76

To run Smalltalk 76, boot the xmsmall.dsk image, and type:
>resume xmsmall.boot

Running networked applications

To run network-based applications, you must choose a host ID and
click the "Join Network" button below for each running instance of
the emulator. The virtual network will be shared among all running
instances of ContraltoJS, regardless of location.

Host ID [   ] [Join Network]
You can demonstrate networking by running two instances of
ContraltoJS and executing Battleship.RUN from the games.dsk image.

Enter "##host_id" as the name of opponent player, where host_id is
the host ID of the emulator for the opposing player.

Known Bugs

  * Ethernet emulation is a work-in-progress and has not been fully
    validated.
  * Keyboard input is laggy, keystrokes are easily missed.
  * You cannot save changes to disk.

Project Info

This is a port of the Living Computer Museum's ContrAlto project to
JavaScript. Find ContrAlto On GitHub. The JavaScript project is also
On GitHub.

For networking, this project makes use of the Retroweb Networking
project, a JavaScript networking library for tunneling legacy
networking protocols over WebRTC; that project is build atop the
Peerjs communications library.