This code appears in the following versions (click to see it in the source code):
Code variations between these versions are shown below.
Type: Subroutine Category: Keyboard Summary: Clear the key logger
Returns: A A is set to 0
LDA #0 \ Set A to 0, as this means "key not pressed" in the \ key logger at KL
Compared to the cassette version, the enhanced versions have an extra key in the key logger, for "P" (which turns off the docking computer).
Tap on a block to expand it, and tap it again to revert.
RTS \ Return from the subroutine