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AFFF: Save Display State
Tests bit 6 of port FB and stores 01 in the input flag when that bit is clear. Reached through the standard command table at Table_CommandHandlerLookup_Standard, dispatched by AFE0.
SaveDisplayState AFFF CALL CheckBitAndJump Go to RecordInputFlag_UseGameState if bit 6 of port FB is set.
B002 CALL CheckInputPort
B005 JR NZ,RecordInputFlag_UseGameState
B007 LD A,$01 Take 01 and continue at RecordInputFlag.
B009 JR RecordInputFlag
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