Routines
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49147: Test Pickup Drop Key
Used by the routine at HandlePickupAndDrop.
Tests whether the control for picking up or dropping an object is pressed. If the joystick is used with the directional control, the other of the two bits for this is used.
Output
F Zero flag set if the control is not pressed
Choose the pickup bit, then test whether it is pressed.
TestPickupDropKey 49147 LD HL,23460 Point HL at the control method, ControlMethod.
49150 LD A,(HL) Fetch it.
49151 AND %00000110 Keep the choice of joystick.
49153 LD A,(23477) Fetch the controls that are pressed from ControlsPressed.
49156 JR Z,TestPickupDropKey_Test Jump to TestPickupDropKey_Test if the keyboard is in use.
49158 BIT 3,(HL) Jump to TestPickupDropKey_Test if the directional control is not on.
49160 JR Z,TestPickupDropKey_Test
49162 RRCA Move the bit for the directional control into place.
TestPickupDropKey_Test 49163 AND %00010000 Keep the bit for picking up and dropping.
49165 RET Return.
View the equivalent code in;
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