Prev: 27476 Up: Map Next: 27512
27480: Raise the signal for a certain event
Used by command lists 128, 130, 132, 134, 204, 208, 210, 212, 214, 216 and 218.
Input
H Character number (152-169)
27480 LD B,198 198 is the code for 'SET 0,(HL)'
This entry point is used by the routine at 27476 with B=134 (the code for 'RES 0,(HL)').
27482 CALL 24972 Get the event identifier (0-29) from the command list
27485 RRCA Point HL at the appropriate signal flag holder (32712, 32713, 32714 or 32715)
27486 RRCA
27487 RRCA
27488 LD C,A
27489 AND 31
27491 ADD A,200
27493 LD E,A
27494 LD D,127
27496 EX DE,HL
27497 LD A,C Modify the instruction at 27506 below to 'SET n,(HL)' or 'RES n,(HL)' as appropriate
27498 RRCA
27499 RRCA
27500 AND 56
27502 ADD A,B
27503 LD (27507),A
27506 SET 0,(HL) Lower or raise the signal for the event; this instruction is modified immediately before execution so that it sets or resets the appropriate bit
27508 EX DE,HL Restore the character number to H
27509 JP 25256 Move to the next command in the command list
Prev: 27476 Up: Map Next: 27512