.zeroIfYIs55 FOR I%, 0, 255 IF I% = &55 EQUB 0 ELSE EQUB I% ENDIF NEXTName: zeroIfYIs55 [Show more] Type: Variable Category: Screen buffer Summary: A lookup table for zeroing Y if and only if it is &55Context: See this variable in context in the source code References: This variable is used as follows: * DRAW_BYTE calls zeroIfYIs55