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Routines |
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Used by the routine at HandlePickupAndDrop.
Tests whether the control for picking up or dropping an object is pressed. If a joystick is used with directional control then the other of the two bits for this is used.
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Use the directional bit when a joystick has directional control.
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| TestPickupDropKey | BD58 | LD HL,$5B04 | Point HL at ControlMethod. | |||||
| BD5B | LD A,(HL) | Fetch it. | ||||||
| BD5C | AND %00000110 | Keep only bits 1 and 2. | ||||||
| BD5E | LD A,($5B15) | Fetch ControlsPressed. | ||||||
| BD61 | JR Z,TestPickupDropKey_Test | Jump to TestPickupDropKey_Test if the keyboard is in use. | ||||||
| BD63 | BIT 3,(HL) | Jump to TestPickupDropKey_Test if directional control is off. | ||||||
| BD65 | JR Z,TestPickupDropKey_Test | |||||||
| BD67 | RRCA | Move the bit for directional control into place. | ||||||
| TestPickupDropKey_Test | BD68 | AND %00010000 | Keep only bit 4. | |||||
| BD6A | RET | Return. | ||||||
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View the equivalent code in;
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