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machine_enter.py
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mem = bytearray([0] * (2 ** 10))
reg = [bytearray([0] * 4) for i in range(32)]
IR = bytearray([0] * 4) # 当前指令
AR = bytearray([0] * 4) # mem的地址缓存器
DR = bytearray([0] * 4) # mem的数据缓存器
S = bytearray([0] * 4) # ALU的S缓存器
T = bytearray([0] * 4) # ALU的T缓存器
PC = bytearray([0] * 4) # PC
AC = bytearray([0] * 4) # AC
ZF = 0 # 零
SF = 0 # 符号
OF = 0 # 溢出
signal_control_in = {
'DR-MM': 0,
'DR': 0,
'AR': 0,
'IR': 0,
'T': 0,
'S': 0,
'REG': 0, # 1-32,0表示不响应
'PC': 0,
}
signal_control_out = {
'AR-MM': 0,
'DR-MM': 0,
'DR': 0,
'T': 0,
'S': 0,
'REG': 0, # 1-32,0表示不响应
'PC': 0,
}
SBUS = [[], []] # 输入态，输出态
MMBUS = [[], []] # 输入态，输出态
ALU = [0, '', 0] # [0]:1-32; [2]:一元运算的参数x，或者 立即数的数
PC_add = [0]
# 微命令 版本 未完善
# from BackEnd.Machine.Micro_control import *
# 微操作
from BackEnd.Machine.Micro_control_op import Micro_control_op, bin_dec
from BackEnd.Machine.Micro_control_op import op_plus, op_cover, op_xor, op_left
def update():
global SBUS, MMBUS, signal_control_in, signal_control_out, ALU, PC_add, SF, OF, S, T, mem, DR, IR, AR, PC, AC, reg
ZF_t=0
if MMBUS[0]:
for t_ in range(len(DR)):
DR[t_] = mem[bin_dec(AR) + t_]
for i in MMBUS[1]:
if i == 'AR-MM':
pass
if i == 'DR-MM':
for t_ in range(len(DR)):
mem[bin_dec(AR) + t_] = DR[t_]
if ALU[1]:
if ALU[1] == '+':
op_plus(T, S, reg[int(ALU[0]) - 1])
elif ALU[1] == '^':
op_xor(T, S, reg[int(ALU[0]) - 1])
elif ALU[1] == '<<':
op_cover(T, op_left(S, ALU[2]))
elif ALU[1] == '+i':
temp = bin_dec(S)
if temp > 32768:
temp = temp - (2 ** 16)
else:
temp = temp
num = temp + ALU[2]
if num < 0:
num = (2 ** 16) + num
else:
num = num
for i in range(len(T)):
T[i] = num % 256
num = num >> 8
elif ALU[1] == '==':
flag = 0
for i in range(4):
if reg[int(ALU[0]) - 1] != S:
flag = 1
if flag == 0:
ZF_t = 1
else:
ZF_t = 0
if PC_add[0]:
if PC_add[0] == 1:
op_plus(PC, PC, bytearray([4, 0, 0, 0]))
elif PC_add[0] != 1:
op_plus(PC, PC, bytearray([0, 0, 0, 0]), PC_add[0])
if len(SBUS[1]) != 1:
pass
else:
for i in SBUS[0]:
if i == 'DR':
op_cover(DR, SBUS[1][0])
elif i == 'AR':
op_cover(AR, SBUS[1][0])
elif i == 'IR':
op_cover(IR, SBUS[1][0])
elif i == 'T':
op_cover(T, SBUS[1][0])
elif i == 'S':
op_cover(S, SBUS[1][0])
elif i == 'PC':
op_cover(PC, SBUS[1][0])
elif 0 < int(i) < 33: # 1-32,0表示不响应
op_cover(reg[int(i) - 1], SBUS[1][0])
if MMBUS[0]:
for t_ in range(len(DR)):
DR[t_] = mem[bin_dec(AR) + t_]
for i in MMBUS[1]:
if i == 'AR-MM':
pass
if i == 'DR-MM':
for t_ in range(len(DR)):
mem[bin_dec(AR) + t_] = DR[t_]
return ZF_t
class Machine:
def __init__(self, machine_instruct):
self.__theMachine = machine_instruct
# self.__Micro_control = Micro_control()
self.__Micro_control_op = Micro_control_op()
def run(self):
global SBUS, MMBUS, signal_control_in, signal_control_out, ALU, PC_add, ZF, SF, OF, S, T
print("开始执行了")
t = 1
while (1):
print(str(format(t, '02o')) + "编码:", end="")
t += 1
for i in range(4):
print(format(mem[bin_dec(PC) + 3 - i], '08b'), end=" ")
print("")
if mem[bin_dec(PC)] == 255:
break
# 微操作
for T_machine in range(3):
for T_clock in range(4):
SBUS = [[], []] # 输入态，输出态
MMBUS = [[], []] # 输入态，输出态
ALU = [0, '', 0]
PC_add = [0]
if self.__Micro_control_op.final():
ZF = 0 # 零
SF = 0 # 符号
OF = 0 # 溢出
else:
ZF, SF, ALU, SBUS, MMBUS = self.__Micro_control_op.run(T_machine, T_clock, PC_add, IR, ALU,
SBUS, MMBUS, signal_control_in,
signal_control_out, ZF, SF)
ZF = 0 # 零
SF = 0 # 符号
OF = 0 # 溢出
ZF=update()
self.__Micro_control_op.final_reset()
# 微命令 版本 未完善
# for T_machine in range(3):
# for T_clock in range(4):
# SBUS = [[], []] # 输入态，输出态
# MMBUS = [[], []] # 输入态，输出态
# if self.__Micro_control.final():
# pass
# else:
# self.__Micro_control.run(IR, ALU, SBUS, MMBUS, signal_control_in, signal_control_out)
# update()
# self.__Micro_control.final_reset()
# print(mem[bin_dec(PC):bin_dec(PC)+4])
print("结束了")
# print(signal_control_out)
# print(signal_control_in)
# print(SBUS)
# print(MMBUS)
# print("--------------------------")
# for i in mem[1:5]:
# print(format(i, '08b'))
# print(AR)
# print(DR)
# print(reg[31])