ISPS PRIMER FOR THE INSTRUCTION SET PROCESSOR NOTATION 535
Disjunction and Nonequivalence: Or, Xor
These operators produce the logical sum and difference operations of the two operands. The shortest operand is zero-extended, and the result is as long as the largest operand.
Logical and Arithmetic Assignment: =,¬
The logical assignment operator (=) truncates or zero-extends the source (right operand) to match the length of the destination (left operand). The arithmetic assignment operator (¬
) truncates or sign-extends the source to match the length of the destination.