NOT( 0011 1001 ) == 1100 0110
|NOR Operation on Bits|
changes each bit in a register.
Each 1 is changed to a 0 and each 0 is changed to a 1.
(This is sometimes called "flipping" each bit
or "reflecting" each bit.)
not d,s # load register d with the # bitwise not of register s # (pseudoinstruction)
This is a pseudoinstruction.
The assembler translates it
into a single
basic assembly instruction,
The nor operation is given in the table.
The nor of two bits is equivalent to
applying not to the
or of the bits.
instruction uses two registers as operands
and writes the result to a third register:
nor d,s,t # $d <— bitwise NOR $s with $t. # (basic instruction)
Look at the first two columns of the table where the first operand is zero. The nor of the two operands is the not of the second operand.