计算机组成原理实验MIPS运算器设计代码

根据提供的引用内容，我可以给出一个MIPS运算器设计的代码范例，如下所示：

# MIPS运算器设计代码
# 该代码实现了MIPS运算器的基本功能，包括加、减、与、或、异或、移位等操作

# 定义运算器的基本组件
def adder(a, b, c):
    sum = a + b + c
    return (sum & 0xFFFF, sum >> 16)

def alu(a, b, op):
    if op == 0: # and
        return a & b
    elif op == 1: # or
        return a | b
    elif op == 2: # add
        return adder(a, b, 0)[0]
    elif op == 6: # subtract
        return adder(a, ~b, 1)[0]
    elif op == 7: # set on less than
        return int(a < b)
    elif op == 12: # move
        return b
    elif op == 13: # move not
        return ~b
    elif op == 14: # shift left logical
        return b << a
    elif op == 15: # shift right logical
        return b >> a
    elif op == 16: # shift right arithmetic
        return (b >> a) | ((b & 0x8000) << (16 - a))
    elif op == 17: # shift left logical variable
        return (b << a) & 0xFFFF
    elif op == 18: # shift right logical variable
        return (b >> a) | ((b & 0x8000) >> (a - 1))
    elif op == 19: # shift right arithmetic variable
        return (b >> a) | ((b & 0x8000) << (16 - a))
    elif op == 20: # multiply
        return (a * b) & 0xFFFF
    elif op == 21: # divide
        return (a // b) & 0xFFFF
    elif op == 22: # remainder
        return (a % b) & 0xFFFF
    elif op == 24: # nor
        return ~(a | b)
    elif op == 25: # xor
        return a ^ b
    else:
        return 0

# 定义MIPS运算器的主函数
def mips_alu(a, b, op):
    return alu(a, b, op)

# 示例
print(mips_alu(10, 5, 2)) # 输出：15