 Description | The test consists of three different screens, You can switch between them by pressing the RESET button. The first and second screen use a different query algorithm, and the third screen uses a different layout.
The C16's, C116's, plus/4's keyboard + joystick is managed by a 8 columns × 16 rows matrix, but the joysticks uses only 2 rows from the existing 8. This layout appears on the third screen. If unused rows are implemented by any extension than the result would appear on the third screen. The background of the active key / joy direction will turn to red. The ones that are not active, but once they were definitely active, will be green. The program will also display the state of the Datasette button.
The test load/start is also possible without a keyboard; the program can be started from an EPROM. Insert the burned 16KB EPROM to the BASIC, FUNCTION-LO, C1LO or C2LO ROM-BANK. After power on, the test program will be copied from ROM to RAM and it will start automatically. |
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