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71E1: Unused
Code remnants in the routine at 71DC. If this code were still in use, it would make the teacher skip wiping the board if it was already clean.
71E1 DEFB $7F This was probably the operand of 'LD B,$7F'
71E2 INC C C=1 + blackboard identifier
71E3 LD A,(BC) A=number of the character who last wrote on the board
71E4 AND A Is the board clean?
71E5 JP Z,$62A4 Terminate this interruptible subcommand if so (there is nothing to wipe)
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