or
Instruction Type A
Format
(qp) or r1 = r2, r3 register_form
(qp) or r1 = imm8, r3 imm8_form
Description
The two source operands are logically ORed and the result placed in GR r1. In the register form the first operand is GR r2; in the immediate form the first operand is taken from the imm8 encoding field.