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Routines |
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Called from the main loop at 6229.
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696C | LD HL,$6DA6 | Point HL at the first guard countdown timer. | ||||||
696F | LD B,$04 | There are four guards to consider. | ||||||
6971 | LD E,(HL) | Pick up the countdown timer value in DE. | ||||||
6972 | INC HL | |||||||
6973 | LD D,(HL) | |||||||
6974 | DEC HL | |||||||
6975 | LD A,D | Is the value zero? | ||||||
6976 | OR E | |||||||
6977 | JR Z,$6989 | Jump if so (this guard is already in play). | ||||||
6979 | DEC DE | Decrement the countdown timer. | ||||||
697A | LD (HL),E | |||||||
697B | INC HL | |||||||
697C | LD (HL),D | |||||||
697D | DEC HL | |||||||
697E | LD A,D | |||||||
697F | OR C | This should be OR E. | ||||||
6980 | JR NZ,$6989 | Jump unless A is now zero. | ||||||
6982 | LD A,($6B0A) | Increment the active guard counter. | ||||||
6985 | INC A | |||||||
6986 | LD ($6B0A),A | |||||||
6989 | INC HL | Point HL at the next guard's countdown timer. | ||||||
698A | INC HL | |||||||
698B | DJNZ $6971 | Jump back to consider the next guard. | ||||||
698D | RET |
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