<<   >>   ||   &&

<< ( u1 n --)

LSHIFT u1 value n shifts

Binary operator, which returns the expression n shifted for the number u1.

AVR Assembler:

ldi r17,1<<bitmask

Meta-asssembler:

r17  1 bitmask <<  ldi,

>> ( u1 n --)

RSHIFT u1 value n shifts

|| ( fl1 fl2 --)

logical OR

&& ( fl1 fl2 --)

logical AND