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Routines |
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Used by the routine at 55685.
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| 26670 | EI | Enable interrupts | ||||||
| 26671 | HALT | Wait for interrupt | ||||||
| 26672 | LD SP,26240 | Set stack pointer to 26240 | ||||||
| 26675 | XOR A | Reset all interrupt routine flags... | ||||||
| 26676 | LD (IY+65),A | ... | ||||||
| 26679 | IM 2 | Set interrupt mode 2 | ||||||
| 26681 | CALL 26976 | Set border to black and clear temporary storage area of memory | ||||||
| 26684 | CALL 26884 | Draw input device selection menu and update currently selected input device | ||||||
| 26687 | CALL 35296 | Process keyboard / joystick input on a menu and load A with selected item index | ||||||
| 26690 | CP 4 | If "CHANGE GAME OPTIONS" selected... | ||||||
| 26692 | JP Z,26739 | ...then skip ahead to 26739 | ||||||
| 26695 | CP 5 | If "INSTRUCTIONS" selected... | ||||||
| 26697 | JR Z,26734 | ...then skip ahead to 26734 | ||||||
| 26699 | CP 6 | If "PLAY GAME" selected... | ||||||
| 26701 | JP Z,26997 | ...then jump to 26997 (initialise data and start a new game) | ||||||
| 26704 | PUSH AF | Store AF (A = index of selected menu item) | ||||||
| 26705 | LD A,(54560) | Load A with index of currently selected input device (see trivia) | ||||||
| 26708 | PUSH AF | Store AF (A = index of currently selected input device) | ||||||
| 26709 | LD C,A | Load C with index of currently selected input device | ||||||
| 26710 | LD A,(37139) | Load A with y-coordinate of top edge of window 6 (control selection window) | ||||||
| 26713 | ADD A,C | Add index of currently selected input device... | ||||||
| 26714 | ADD A,2 | ...and add two more to get y-coordinate of menu item for currently selected input device | ||||||
| 26716 | LD B,A | Load value into B | ||||||
| 26717 | LD C,3 | Load C with 3 | ||||||
| 26719 | CALL 54148 | Load HL with attribute file address for coordinates (C, B) | ||||||
| 26722 | LD (HL),71 | Set attribute at this location to 71 (white INK, black PAPER, BRIGHT) (see trivia) | ||||||
| 26724 | POP DE | Restore DE (D = index of currently selected input device, previously in AF) | ||||||
| 26725 | POP AF | Store AF (A = index of selected menu item) | ||||||
| 26726 | LD (54560),A | Set new selected input device index at 54560 | ||||||
| 26729 | CALL 54505 | Update currently selected input device... | ||||||
| 26732 | JR 26687 | ...and loop back to 26687 | ||||||
| 26734 | CALL 26926 | Display instructions windows | ||||||
| 26737 | JR 26684 | Jump back to 26684 to capture next menu selection | ||||||
| 26739 | CALL 26745 | Display and handle Gadget X menu | ||||||
| 26742 | JP 26684 | Jump back to 26684 to capture next menu selection | ||||||
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