quill | Routines |
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HL pointer to flag
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ACTION_PLUS | 26587 | INC BC | BC points to value to add | |
26588 | LD A,(BC) | A=value to add | ||
26589 | ADD A,(HL) | Add A to current value of flag | ||
26590 | JR NC,ACTION_MINUS_0 | If result has not overflowed, set flag to new value and next action | ||
26592 | LD (HL),255 | If result has overflowed, set flag to 255 | ||
26594 | JR ACTION_CLEAR_0 | Next action |
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