def stb(line):
rs = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:30], 2)
t1 = int(mem_man.read_register(ra), 2)
ea = ds + t1
data = mem_man.read_register(rs)
mem_man.update_memory(ea, data[-8:])
def stw(line):
rs = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:30], 2)
t1 = int(mem_man.read_register(ra), 2)
ea = ds + t1
data = mem_man.read_register(rs)
mem_man.update_memory(ea, data[-8:])
mem_man.update_memory(ea + 1, data[-16:-8])
mem_man.update_memory(ea + 2, data[-24:-16])
mem_man.update_memory(ea + 3, data[-32:-24])
def instruction_add(line):
instruction = "Add"
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
opind3 = int(line[16:21], 2)
rctemp = line[31]
#action=op1+"<- ("+op2+") AND ("+op3+")"
#print details
op1 = ""
op2 = mem_man.read_register(opind2)
op3 = mem_man.read_register(opind3)
op1 = bin(int(op2, 2) + int(op3, 2))[2:]
mem_man.update_register(opind1, op1)
def instruction_sld(line):
instruction = "sld"
#extracting operands
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
opind3 = int(line[16:21], 2)
rctemp = line[31]
op1 = mem_man.read_register(opind1)
op3 = mem_man.read_register(opind3)
n = int(op3[-7:], 2)
op2 = op1[n:]
for i in range(n):
op2 = op2 + "0"
mem_man.update_register(opind2, op2)
def xori(line):
rs = int(line[6:11], 2)
ra = int(line[11:16], 2)
ui = int(line[16:32], 2)
t1 = int(mem_man.read_register(rs)[-16:], 2)
t2 = str(t1 ^ ui)
mem_man.update_register(ra, t2)
def std(line):
rs = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:30], 2)
t1 = int(mem_man.read_register(ra), 2)
disp = ds * 4
ea = disp + t1
data = mem_man.read_register(rs)
mem_man.update_memory(ea, data[-8:])
mem_man.update_memory(ea + 1, data[-16:-8])
mem_man.update_memory(ea + 2, data[-24:-16])
mem_man.update_memory(ea + 3, data[-32:-24])
mem_man.update_memory(ea + 4, data[-40:-32])
mem_man.update_memory(ea + 5, data[-48:-40])
mem_man.update_memory(ea + 6, data[-56:-48])
mem_man.update_memory(ea + 7, data[-64:-56])
def lbz(line):
rt = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:32], 2)
t1 = int(mem_man.read_register(ra), 2)
ea = ds + t1
data = mem_man.read_memory(ea)
mem_man.update_register(rt, data)
def instruction_srad(line):
instruction = "srad"
#extracting operands
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
opind3 = int(line[16:21], 2)
rctemp = line[31]
op1 = mem_man.read_register(opind1)
op3 = mem_man.read_register(opind3)
n = int(op3[-7:], 2)
op2 = ""
filler = op1[0]
for i in range(n):
op2 = op2 + filler
op2 = op2 + op1[:-n]
mem_man.update_register(opind2, op2)
def instruction_xor(line):
instruction = "Xor"
#extracting operands
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
opind3 = int(line[16:21], 2)
rctemp = line[31]
#action=op1+"<- ("+op2+") AND ("+op3+")"
#print details
op1 = ""
op2 = mem_man.read_register(opind2)
op3 = mem_man.read_register(opind3)
for i in range(64):
if (op2[i] == op3[i]):
op1 = op1 + "0"
else:
op1 = op1 + "1"
mem_man.update_register(opind1, op1)
def lhz(line):
rt = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:32], 2)
t1 = int(mem_man.read_register(ra), 2)
ea = ds + t1
datum1 = mem_man.read_memory(ea)
datum2 = mem_man.read_memory(ea + 1)
data = datum2 + datum1
mem_man.update_register(rt, data)
def instruction_subf(line):
instruction = "subf"
#extracting operands
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
opind3 = int(line[16:21], 2)
rctemp = line[31]
#action=op1+"<- ("+op2+") AND ("+op3+")"
#print details
op1 = ""
temp = ""
op2 = mem_man.read_register(opind2)
op3 = mem_man.read_register(opind3)
for i in range(64):
if (op2[i] == "0"):
temp = temp + "1"
else:
temp = temp + "0"
op2 = temp
op1 = bin(int(op2, 2) + int(op3, 2) + int("1", 2))[2:]
mem_man.update_register(opind1, op1)
def instruction_extsw(line):
instruction = "srad"
#extracting operands
opind1 = int(line[6:11], 2)
opind2 = int(line[11:16], 2)
rctemp = line[31]
op1 = mem_man.read_register(opind1)
filler = op1[32]
op2 = ""
for i in range(32):
op2 = op2 + filler
op2 = op2 + op1[32:]
mem_man.update_register(opind2, op2)
def ld(line):
rt = int(line[6:11], 2)
ra = int(line[11:16], 2)
ds = int(line[16:30], 2)
t1 = int(mem_man.read_register(ra), 2)
disp = ds * 4
ea = int(disp) + int(t1)
datum1 = mem_man.read_memory(ea)
datum2 = mem_man.read_memory(ea + 1)
datum3 = mem_man.read_memory(ea + 2)
datum4 = mem_man.read_memory(ea + 3)
datum5 = mem_man.read_memory(ea + 4)
datum6 = mem_man.read_memory(ea + 5)
datum7 = mem_man.read_memory(ea + 6)
datum8 = mem_man.read_memory(ea + 7)
data = datum8 + datum7 + datum6 + datum5 + datum4 + datum3 + datum2 + datum1
mem_man.update_register(rt, data)