Rotate instructions that complete execution either without writing or reading flags

An apparatus comprising:

• an execution unit that is operable as a result of a rotate instruction indicating a source operand and a rotate amount to store a result in a destination operand indicated by the rotate instruction, the result having the source operand rotated by the rotate amount, and to complete execution of the rotate instruction without reading a carry flag.

An apparatus comprising:

• an execution unit that is operable as a result of a rotate right instruction explicitly specifying a source operand and an immediate having a rotate amount to store a result in a destination operand explicitly specified by the rotate right instruction, the result having the source operand rotated right by the rotate amount, and to complete execution of the rotate instruction without reading a carry flag, without reading an overflow flag, without writing the carry flag, and without writing the overflow flag.