Commodore 64
Click inside the C64 display before typing. The on-screen keyboard is the fallback if the browser steals a key.
BASIC
PRINT "HELLO" prints text. LIST shows the program in memory. RUN runs it. NEW clears it.
DISKS / PROGRAMS
Use the emulator file-slot button for .D64, .PRG, .CRT and related media. A common disk sequence is LOAD"$",8 → LIST. To load a program: LOAD"*",8,1 → RUN.
C64 command reference ↗ · VICE usage reference ↗ · C64 software/homebrew ↗
Macintosh // System 6
System 6 is Finder-driven: double-click disks/folders/applications; drag items to move them; drag disks to the Trash to eject them.
MEDIA
The current embedded early-Mac environment accepts disk images, not arbitrary modern PDFs. Mount a .dsk/.image containing Mac-native files. That is why we will build a dedicated Barefoot disk rather than drag the PDF directly.
System 6 Hell freeware/shareware disks ↗ · Infinite Mac System 6 ↗
Atari 2600
Load a cartridge image (.bin/.a26) or a compatible single-ROM ZIP. Most games use the joystick plus one fire button; some also rely on the console's SELECT/RESET switches.
TIP
If a ROM appears to do nothing, try the emulator's RESET/SELECT controls first — original Atari cartridges often waited for the hardware switch rather than a modern START button.
Stella emulator guide ↗ · Atari 2600 homebrew ↗
MS-DOS
DIR lists files. CD NAME changes directory. CD.. goes up one level. Type a program's .EXE, .COM or .BAT filename to run it.
ZIP vs JSDOS
A normal game ZIP is not a js-dos bundle. js-dos expects .jsdos/dosbox.conf. Door 09 R19 builds that wrapper in memory for ordinary ZIPs. If the startup filename is known, enter it in the Startup Command box.
F‑15 Strike Eagle profile: F15.COM.
js-dos bundle guide ↗ · DOS freeware/shareware ↗
Private Arcade Cabinets
Galaga: V = credit, Enter = start, arrows = move, X = fire. Elevator Action: V = credit, Enter = start, arrows = move, X = fire, Z = jump/action.
Click inside the emulated screen if keyboard focus is lost. Private ROM media should live in the ROM Locker or a protected cabinet endpoint — never as a public ZIP under public_html.
Retro Flight Simulator
W/S pitch · A/D roll · Q/E yaw · Z/X throttle · G gear · F flaps · H HUD · 1–4 views.
Open-source project / instructions ↗
WarGames // WOPR
Press CONNECT, let the modem handshake complete, then use the terminal. Try HELP, LIST GAMES, or the familiar login clue JOSHUA.
Private ROM Locker
Temporary media is stored outside the public website at /home/mark/barefoot-rom-cache/. Default lifetime is one hour. Choose KEEP for a competition or repeat session, then PURGE it manually later.
The locker is access-controlled and noindexed; however, always use software you have the right to use.