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6188: Controls: Kempston Joystick
Used by the routines at
ReadInputLR
,
ReadInputBrake
and
ReadInputAccelerate
.
Input
A
Joystick controls
ReadKempstonJoystick
6188
IN A,($1F)
A
=controls.
618A
CPL
Flip the bits.
618B
RET
Return.
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617F
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618C