|
Routines |
| Prev: 63056 | Up: Map | Next: 63191 |
|
||||||||||
| 63146 | CP 13 | Was ENTER pressed? | ||||||||
| 63148 | JR Z,63188 | Jump if so | ||||||||
| 63150 | LD B,A | Store the keypress code in B | ||||||||
| 63151 | LD H,172 | 172=ERIC | ||||||||
| 63153 | CALL 28968 | C=171 (Reading Room blackboard), 177 (White Room blackboard) or 183 (Exam Room blackboard) | ||||||||
| 63156 | SUB 179 | |||||||||
| 63158 | LD C,A | |||||||||
| 63159 | ADD A,A | |||||||||
| 63160 | ADD A,C | |||||||||
| 63161 | LD C,A | |||||||||
| 63162 | LD L,A | Point HL at byte 3 of the relevant blackboard contents buffer) | ||||||||
| 63163 | LD H,127 | |||||||||
| 63165 | BIT 7,(HL) | Jump if 4 or more characters have been written so far, or the board was dirty before ERIC started writing | ||||||||
| 63167 | JR Z,63178 | |||||||||
| 63169 | SUB 4 | Point HL at the byte preceding the first byte of the relevant blackboard contents buffer | ||||||||
| 63171 | LD L,A | |||||||||
| 63172 | INC L | Find the next 'open' slot (which will have bit 7 set) in the blackboard contents buffer | ||||||||
| 63173 | BIT 7,(HL) | |||||||||
| 63175 | JR Z,63172 | |||||||||
| 63177 | LD (HL),B | Store the keypress code in the blackboard contents buffer | ||||||||
| 63178 | INC C | Restore the keypress code to A; set BC=32684 (Reading Room blackboard), 32690 (White Room blackboard), or 32696 (Exam Room blackboard) (which holds the pixel coordinates at which ERIC should write) | ||||||||
| 63179 | LD A,B | |||||||||
| 63180 | LD B,127 | |||||||||
| 63182 | CALL 29023 | Write a single character on the blackboard | ||||||||
| 63185 | JP 63123 | Move ERIC's arm | ||||||||
|
ERIC has finished writing on the board (ENTER was pressed).
|
||||||||||
| 63188 | RES 5,(HL) | Reset bit 5 of ERIC's status flags at 32763 to indicate that ERIC has finished writing on the board | ||||||||
| 63190 | RET | Return to the main loop | ||||||||
| Prev: 63056 | Up: Map | Next: 63191 |