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Routines |
| Prev: 37595 | Up: Map | Next: 37764 |
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Used by the routine at 64582.
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| 37689 | HALT | Wait for interrupt | ||||||
| 37690 | LD SP,23808 | Set stack pointer to 23808 | ||||||
| 37693 | XOR A | Reset all interrupt routine flags... | ||||||
| 37694 | LD (IY+65),A | ... | ||||||
| 37697 | IM 2 | Set interrupt mode 2 | ||||||
| 37699 | CALL 38003 | Set border to black and clear temporary storage area of memory | ||||||
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This entry point is used by the routine at 37632
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| 37702 | CALL 37909 | Draw input device selection menu and update currently selected input device | ||||||
| 37705 | CALL 47502 | Process keyboard / joystick input on a menu and load A with selected item index | ||||||
| 37708 | CP 4 | If "CHANGE GAME OPTIONS" selected... | ||||||
| 37710 | JP Z,37758 | ...then skip ahead to 37758 | ||||||
| 37713 | CP 5 | If "INSTRUCTIONS" selected... | ||||||
| 37715 | JR Z,37752 | ...then skip ahead to 37752 | ||||||
| 37717 | CP 6 | If "PLAY GAME" selected... | ||||||
| 37719 | JP Z,38024 | ...then jump to 38024 (initialise data and start a new game) | ||||||
| 37722 | PUSH AF | Store AF (A = index of selected menu item) | ||||||
| 37723 | LD A,(63653) | Load A with index of currently selected input device (see trivia) | ||||||
| 37726 | PUSH AF | Store AF (A = index of currently selected input device) | ||||||
| 37727 | LD C,A | Load C with index of currently selected input device | ||||||
| 37728 | LD A,(49084) | Load A with y-coordinate of top edge of window 6 (control selection window) | ||||||
| 37731 | ADD A,C | Add index of currently selected input device... | ||||||
| 37732 | ADD A,2 | ...and add two more to get y-coordinate of menu item for currently selected input device | ||||||
| 37734 | LD B,A | Load value into B | ||||||
| 37735 | LD C,3 | Load C with 3 | ||||||
| 37737 | CALL 63219 | Load HL with attribute file address for coordinates (C, B) | ||||||
| 37740 | LD (HL),71 | Set attribute at this location to 71 (white INK, black PAPER, BRIGHT) (see trivia) | ||||||
| 37742 | POP DE | Restore DE (D = index of currently selected input device, previously in AF) | ||||||
| 37743 | POP AF | Store AF (A = index of selected menu item) | ||||||
| 37744 | LD (63653),A | Set new selected input device index at 63653 | ||||||
| 37747 | CALL 63598 | Update currently selected input device... | ||||||
| 37750 | JR 37705 | ...and loop back to 37705 | ||||||
| 37752 | CALL 37951 | Display instructions windows | ||||||
| 37755 | JP 37702 | Jump back to 37702 to capture next menu selection | ||||||
| 37758 | CALL 37764 | Display and handle Gadget X menu | ||||||
| 37761 | JP 37702 | Jump back to 37702 to capture next menu selection | ||||||
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