There is a separate page for Commodore PET.
The programs are provided as disk images in D64 and D81 format, which also contain a loader program. They are also provided separately in PRG format.
- Commodore 64
- Commodore 128 (in C64 mode, PAL only)
- MEGA65 (in C64 mode)
- Commodore 128 (in C128 40 columns mode)
- MEGA65 (in native mode)
- Commodore Plus/4
- Commodore C16
- Commodore C116
- Commodore VIC-20 (at least 8k RAM expansion)
The disc image contains a BASIC loader that detects which machine it runs on and automatically loads the correct program. For this to work on systems other than the C64, you need to load it with LOAD"*",8 and start it with RUN. Loading it with LOAD"*",8,1 will not work. On C128 and MEGA65, the disk will auto-boot: simply insert the disk and turn on the computer.
Note that the loader can't tell if it's running on a C16 or C116. If you are using a C116, load it directly with LOAD"ANYKEY C116",8; for very early models with the £ key in the upper left corner, use LOAD"ANYKEY C116 ALT",8.
The keys are displayed in the same layout as the physical keyboard.
Keys that are currently pressed are displayed inverted.
Keys that were previously pressed are displayed in a darker gray. This helps detect dead keys. To reset the state of all keys to unpressed, hold the key indicated on screen for two seconds. (F5 on C64 and C128, F13 on MEGA65, F3 on Plus/4)
Joysticks contain a stick or d-pad with switches for the four cardinal directions and up to three buttons.
Pressed directions and buttons are displayed inverted.
Buttons 2 and 3 bring an analog potentiometer to a low value by connecting its pin to +5V. These potentiometers are also used by paddles and the 1351 mouse; if such a device is connected, the buttons may read as pressed.
Plus/4 does not support more than one button.
When run in C64 mode on a C128, Anykey will display and test the full C128 keyboard. However, the 40/80 Display key cannot be read in C64 mode, therefore it is displayed grayed out. To test it, use the native version, Anykey 128.
In C128 mode, Anykey will always display on the 40 columns (VIC) display, even if started from 80 columns mode.
When run in C64 mode on a MEGA65, Anykey will display and test the full MEGA65 keyboard.
Most keys are labeled with the symbol they produce when pressed without shift. Special keys are labeled with a short description or graphics symbol:
- Clear/Home:
C - Cursor Left/Right:
<> - Cursor Up/Down:
^v - Insert/Delete:
I - Restore:
RE - Return:
RET - Run/Stop:
R - Shift:
⇧ - Shift Lock:
⇪
Shift Lock and the left Shift key, and on Plus/4 also the right Shift key, appear as the same key to the computer and cannot be reliably distinguished on all computers. On Plus/4, both Control keys also appear as the same key.
The Restore key cannot be read directly. Anykey can detect when the key is pressed, but it can't detect for how long, is it assumes the key was released after a short while.
On MEGA65, when pressing Cursor Up or Cursor Left, Right Shift and the opposite cursor keys also appear pressed to software to maintain compatibility with C64. To avoid prematurely marking keys as pressed, these keys are disabled while Cursor Up or Cursor Left is pressed.
If you press certain combinations of three keys, a fourth key will also appear pressed. This is because the three keys together create the same electrical connection the fourth key would.
On C64 and C128, joysticks interfere with reading the keyboard. When a joystick is pressed, certain keys can't be read. These keys will be ignored while the joystick is pressed. If such a key was pressed before the joystick, it will remain pressed until the joystick is released. Auto fire might defeat this detection and result in phantom key presses.