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Routines |
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The operand of the instruction at 34821 represents the address of the appropriate "walking" routine to jump to (either 34824 for walking left or 34838 for walking right). This is modified by the instructions at 27327, 29527, 29549 and 29565.
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| 34821 | JP 34824 | Jump to walking left or walking right version of routine | ||||||
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Update Magic Knight's current frame based on x-coordinate (walking left)
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| 34824 | LD B,5 | Load B with 5 (as first graphic frame of Magic Knight walking left is frame number 5) | ||||||
| 34826 | LD HL,25387 | Point HL at Magic Knight's current data (x- and y-coordinates, etc.) | ||||||
| 34829 | LD A,(HL) | Load A with Magic Knight's x-coordinate | ||||||
| 34830 | RRCA | Divide Magic Knight's x-coordinate by 2... | ||||||
| 34831 | AND 3 | ...and take lowest two bits (0 - 3) | ||||||
| 34833 | ADD A,B | Add result to B (1 for walking right frames or 5 for walking left frames) to get current required frame | ||||||
| 34834 | LD (25390),A | Load frame number into Magic Knight's properties | ||||||
| 34837 | RET | Return | ||||||
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Update Magic Knight's current frame based on x-coordinate (walking right)
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| 34838 | LD B,1 | Load B with 1 (as first graphic frame of Magic Knight walking right is frame number 1) | ||||||
| 34840 | JR 34826 | Return to routine at 34821 | ||||||
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