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Unused |
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This routine copies the attribute bytes for an empty room to the screen, so perhaps it was used during development of the game to check that the layout of a room had been defined correctly.
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| 38644 | LD HL,24064 | Copy the attribute buffer at 24064 to the top two-thirds of the screen | ||
| 38647 | LD DE,22528 | |||
| 38650 | LD BC,512 | |||
| 38653 | LDIR | |||
| 38655 | LD HL,16384 | Fill the top two-thirds of the display file with the byte value 24 (00011000) | ||
| 38658 | LD DE,16385 | |||
| 38661 | LD BC,4095 | |||
| 38664 | LD (HL),24 | |||
| 38666 | LDIR | |||
| 38668 | LD BC,65278 | Prepare BC for reading keys SHIFT-Z-X-C-V | ||
| 38671 | IN A,(C) | Read these keys | ||
| 38673 | BIT 2,A | Is 'X' being pressed? | ||
| 38675 | JP Z,0 | Jump if so to reset the machine | ||
| 38678 | JR 38671 | Otherwise jump back to read the keyboard again | ||
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