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Routines |
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24133 | LD H,210 | 210=ERIC | |||||
24135 | CALL 26453 | Collect info about the board ERIC's standing at (if any) | |||||
24138 | RET C | Return if ERIC's not standing at a blackboard | |||||
24139 | LD HL,32728 | Copy the blackboard identifier (84, 90, 96, 102 or 108) from B to 32728 | |||||
24142 | LD (HL),B | ||||||
24143 | DEC L | While ERIC is writing on the board, 32727 will be used to store the ASCII code of the last character written; initialise this with something other than 13 (ENTER) | |||||
24144 | LD (HL),L | ||||||
24145 | LD L,B | Point HL at the first byte of the blackboard's buffer, which usually holds the number of the next clean pixel column | |||||
24146 | LD (HL),1 | ERIC will start writing at pixel column 1 (regardless of what's already been written on the board) | |||||
24148 | INC L | A=number of the character who last wrote on this board, or 0 if it's clean | |||||
24149 | LD A,(HL) | ||||||
24150 | LD (HL),210 | Signal: ERIC wrote on this board | |||||
24152 | LD B,4 | There are 4 digits or letters in the bike and storeroom combinations | |||||
24154 | CPL | A=128 if the board is clean, 0 otherwise | |||||
24155 | AND 128 | ||||||
24157 | INC L | Prepare 4 spaces in bytes 2-5 of the blackboard buffer for combination letters/numbers, with bit 7 set if the board is clean | |||||
24158 | LD (HL),A | ||||||
24159 | DJNZ 24157 | ||||||
24161 | LD L,251 | HL=32763 (ERIC's status flags) | |||||
24163 | LD (HL),16 | Set bit 4: ERIC is writing on a blackboard | |||||
This entry point is used by the routine at 24175.
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24165 | LD H,210 | 210=ERIC | |||||
24167 | CALL 25012 | Update the SRB for ERIC's current animatory state | |||||
24170 | OR 7 | A=7/135: ERIC with his arm up (as if writing on a board) | |||||
24172 | JP 62231 | Update ERIC's animatory state and location and update the SRB |
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