Prev: FA82 Up: Map Next: FAA2
FA83: Deal with a character who has nearly recovered from being knocked over
Used by the routine at FA05. Controls a character from the point where he has almost recovered from the daze of being knocked over.
H Character number (0xD7-0xE5)
FA83 CALL $F9FA Place the address of the next instruction into bytes 0x12 and 0x13 of the character's buffer
The apparent intention of the remainder of this routine is to make the character return (by walking backwards or forwards as required) to the spot where he was hit, but this fails to happen because of the faulty 'JR NZ' instruction below, which should be a 'JR Z' instead.
FA86 LD L,$15 Collect the character's pre-knockout x-coordinate from byte 0x15 of his buffer
FA88 LD A,(HL)
FA89 LD L,$01 Does it match the character's current x-coordinate?
FA8C JR NZ,$FA96 Jump if not (this is a bug)
FA8E LD C,$80 Bit 7 set, bit 6 reset: the character will move left
FA90 JR C,$FA50 This jump is never made, but the intention was to make it if the character's current x-coordinate is greater than his pre-knockout x-coordinate
FA92 LD C,$40 Bit 7 reset, bit 6 set: the character will move right
FA94 JR $FA50 Move the character right
Restore the character's pre-knockout animatory state and terminate this subcommand.
FA96 CALL $E9C8 Update the SRB for the character's current animatory state and location
FA99 LD L,$0D Collect the character's pre-knockout animatory state from byte 0x0D of his buffer
FA9C CALL $E9D5 Update the character's animatory state and update the SRB
FA9F JP $F288 Terminate this uninterruptible subcommand
Prev: FA82 Up: Map Next: FAA2