QIMI Mouse Interface document

QIMI Mouse Interface document

Updated: 26.04.00

Dave Westbury has kindly supplied some programming information and register details for the QIMI mouse interface. His notes are reproduced below.

Circuit Diagram - Click here to download the circuit diagram (a 512x256 QL _PIC graphics file)

QIMI interrupts are enabled by reading or writing to address 114622

Mouse buttons read from address 114588:
bit 4 = right button
bit 5 = left button
0 = button on.

Movement read from address 114620:
bit 0 = up/down direction
bit 2 = right/left movement
bit 4 = right/left direction
bit 5 = up/down movement
0=left & down, 1=right & up.

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