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Routines |
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| 54505 | LD B,A | Load B with index of currently selected input device... | ||||||||
| 54506 | CP 1 | ...and if this is 1 (Kempston joystick)... | ||||||||
| 54508 | CALL Z,54564 | ...then if Kempston joystick is not present, revert to previously selected input device | ||||||||
| 54511 | LD A,B | Load A with currently selected input device | ||||||||
| 54512 | LD HL,53411 | Point HL at start of table of start addresses of input device reading routines | ||||||||
| 54515 | CALL 55730 | Load HL with A-th entry from table (i.e. the routine for the currently selected input device)... | ||||||||
| 54518 | LD (54948),HL | ...and update jump (at 54947) in input reading routine to this address | ||||||||
| 54521 | LD A,(54560) | Load index of currently selected input device into A | ||||||||
| 54524 | ADD A,211 | Add 211 (index in common words table for first "control method" string) | ||||||||
| 54526 | LD (54562),A | Store as text code at 54562 | ||||||||
| 54529 | LD HL,18636 | Load HL with display file address corresponding to (12, 14) (characters)... | ||||||||
| 54532 | LD (54110),HL | ...and move bitmap virtual text cursor here | ||||||||
| 54535 | LD A,32 | Set character to be repeated to 32 (SPACE)... | ||||||||
| 54537 | LD (54235),A | ... | ||||||||
| 54540 | LD HL,20 | Load HL with 20 as we need to draw across 20 character blocks | ||||||||
| 54543 | CALL 54231 | Draw run of 20 SPACE characters (i.e. clear old "CONTROL : ..." text) | ||||||||
| 54546 | LD HL,18626 | Load HL with display file address corresponding to (2, 14) (characters)... | ||||||||
| 54549 | LD (54110),HL | ...and move bitmap virtual text cursor here | ||||||||
| 54552 | LD HL,54561 | Point HL at current control text (control selection screen) | ||||||||
| 54555 | CALL 34733 | Print text at location HL to screen using full screen width | ||||||||
| 54558 | XOR A | Set A to zero | ||||||||
| 54559 | RET | Return | ||||||||
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