instructions b p -> JCN -> Jumps to zero page address p if b != $00 JCNw -> Jumps to absolute address p if b != $00 JCNx -> Jumps to zero page address x if b != $00 JCNxw -> Jumps to absolute address xw if b != $00 JCNy -> Jumps to zero page address y if b != $00 JCNyw -> Jumps to absolute address yw if b != $00