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Routines |
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The update routine for the remote control block (object 128), the pad which tells the robot to stop. It is pressed when its vertical speed is not zero. The command is 1; bit 7 of RemoteControlCommand is left as it was.
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Send the stop command if something has landed.
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| HandleRemoteControlBlock | 43597 | CALL SetPixelAdjustments | Call SetPixelAdjustments. | |||||
| 43600 | LD A,(IX+11) | Fetch the vertical speed. | ||||||
| 43603 | AND A | Return if nothing has landed. | ||||||
| 43604 | RET Z | |||||||
| 43605 | XOR A | Write 0 to the vertical speed. | ||||||
| 43606 | LD (IX+11),A | |||||||
| 43609 | LD HL,23362 | Point HL at RemoteControlCommand. | ||||||
| 43612 | LD A,(HL) | Fetch the command. | ||||||
| 43613 | AND %10000000 | Keep bit 7. | ||||||
| 43615 | OR %00000001 | Set the command to 1. | ||||||
| 43617 | LD (HL),A | Set RemoteControlCommand. | ||||||
| 43618 | RET | Return. | ||||||
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