|  | Data | 
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|  | ||||
| 23487 | DEFB 0 | Store for currently active keyboard press / joystick action | ||
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The following byte keeps track of the number of times the text printing routine calls itself, in printing common words as part of a higher-level string.
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| 23488 | DEFB 0 | Text printing routine recursion depth counter | ||
| 23489 | DEFB 0 | x-coordinate of left edge of region to scroll (characters) | ||
| 23490 | DEFB 0 | x-coordinate of right edge of region to scroll (characters) | ||
| 23491 | DEFB 0 | y-coordinate of top of region to scroll (pixels) | ||
| 23492 | DEFB 0 | y-coordinate of bottom of region to scroll (pixels) | ||
| 23493 | DEFB 0 | x-coordinate of left edge (of frame, or of interior) of window (characters) / graphic (room drawing) | ||
| 23494 | DEFB 0 | y-coordinate of top edge (of frame, or of interior) of window (characters) / graphic (room drawing) | ||
| 23495 | DEFB 0 | x-coordinate of right edge (of frame, or of interior) of window (characters), x+1 for current graphic (room drawing) | ||
| 23496 | DEFB 0 | y-coordinate of bottom edge (of frame, or of interior) of window (characters), y+1 for current graphic (room drawing) | ||
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