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45067: Clear The Display Lines
Clears the display lines when the flag test passes, then returns zero. Reached through the standard command table at Table_CommandHandlerLookup_Standard, dispatched by 45024.
ClearTheDisplayLines 45067 CALL CheckBitAndJump Call CheckBitAndJump to test the flag bit, then call ClearDisplayLines to clear the display lines.
45070 CALL ClearDisplayLines
45073 XOR A Start from zero.
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