计算机组成原理实验MIPS运算器设计代码
时间: 2023-12-20 21:30:53 浏览: 111
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:
```python
# 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
```
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