| 摘要 |
PURPOSE:To process the bit order conversion by hardware so as to improve the bit order conversion efficiency by providing a bit order conversion part operated by a bit order conversion instruction. CONSTITUTION:An instruction analyzing part 3 in a central processing unit 2 analyzes the instruction received from an instruction register; and when it is the bit order conversion instruction, the part 3 transfers the bit order conversion instruction and the numerical value of a register 4 to the bit order conversion part 5. The bit order conversion part 5 converts the numerical value received from the register 4 in accordance with the bit order conversion instruction received from the instruction analyzing part 3 and returns the result to the register 4. The bit order conversion part 5 operated by the bit order conversion instruction in this manner is provided to execute the prescribed bit order conversion with one instruction step. |
