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Routines |
| Prev: 42436 | Up: Map | Next: 42554 |
| 42445 | LD A,(IX+0) | A=*IX+0. | ||
| 42448 | BIT 7,A | Jump to 42482 if bit 7 of A is not set. | ||
| 42450 | JR Z,42482 | |||
| 42452 | AND %01111111 | Keep only bits 0-6. | ||
| 42454 | LD D,A | D=A. | ||
| 42455 | LD E,(IX+1) | E=*IX+1. | ||
| 42458 | INC IX | Increment IX by one. | ||
| 42460 | AND %11110000 | Keep only bits 4-7. | ||
| 42462 | CP 48 | Jump to 42567 if A is equal to 48. | ||
| 42464 | JR Z,42567 | |||
| 42466 | CP 32 | Jump to 42567 if A is equal to 32. | ||
| 42468 | JR Z,42567 | |||
| 42470 | CP 96 | Jump to 42567 if A is equal to 96. | ||
| 42472 | JR Z,42567 | |||
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This entry point is used by the routine at 43066.
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| 42474 | CALL 43143 | Call 43143. | ||
| 42477 | INC IX | Increment IX by one. | ||
| 42479 | OR %00000001 | Set bit 0. | ||
| 42481 | RET | Return. | ||
| 42482 | CP 32 | Jump to 42529 if A is less than 32. | ||
| 42484 | JR C,42529 | |||
| 42486 | CP 96 | Jump to 43066 if A is greater than 96. | ||
| 42488 | JP NC,43066 | |||
| 42491 | CP 64 | Jump to 42524 if A is less than 64. | ||
| 42493 | JR C,42524 | |||
| 42495 | AND %00011111 | Keep only bits 0-4. | ||
| 42497 | INC A | Increment A by one. | ||
| 42498 | LD B,A | B=A. | ||
| 42499 | PUSH IX | HL=IX (using the stack). | ||
| 42501 | POP HL | |||
| 42502 | INC HL | Increment HL by one. | ||
| 42503 | LD C,0 | C=0. | ||
| 42505 | CALL 43408 | Call 43408. | ||
| 42508 | CALL 43447 | Call 43447. | ||
| 42511 | DJNZ 42505 | Decrease counter by one and loop back to 42505 until counter is zero. | ||
| 42513 | PUSH HL | IX=HL (using the stack). | ||
| 42514 | POP IX | |||
| 42516 | LD A,C | A=C. | ||
| 42517 | AND A | Set flags. | ||
| 42518 | JR NZ,42477 | Jump to 42477 if HL is not equal to A. | ||
| 42520 | DEC IX | Decrease IX by one. | ||
| 42522 | JR 42477 | Jump to 42477. | ||
| 42524 | CALL 43447 | Call 43447. | ||
| 42527 | JR 42477 | Jump to 42477. | ||
| 42529 | PUSH DE | Stash DE on the stack. | ||
| 42530 | LD E,A | E=A. | ||
| 42531 | LD D,0 | D=0. | ||
| 42533 | LD HL,42333 | HL=42333+(DE*2). | ||
| 42536 | ADD HL,DE | |||
| 42537 | ADD HL,DE | |||
| 42538 | LD E,(HL) | E=*HL. | ||
| 42539 | INC HL | Increment HL by one. | ||
| 42540 | LD D,(HL) | D=*HL. | ||
| 42541 | EX DE,HL | Exchange the DE and HL registers. | ||
| 42542 | POP DE | Restore DE from the stack. | ||
| 42543 | CP 29 | Jump to 42435 if A is greater than or equal to 29. | ||
| 42545 | JR NC,42435 | |||
| 42547 | CALL 42435 | Call 42435. | ||
| 42550 | JR Z,42477 | Jump to 42477 if A is equal to 29. | ||
| 42552 | JR 42474 | Jump to 42474. | ||
| Prev: 42436 | Up: Map | Next: 42554 |