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simulator.py
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simulator.py
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register = ["0000000000000000","0000000000000000","0000000000000000","0000000000000000","0000000000000000","0000000000000000","0000000000000000"]
flags=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
import struct
from decimal import Decimal
def binarytodecimal(str):
decimal = int(str, 2)
return decimal
def pointvalabinary_todecimal(abc):
ii=abc.find('.')
aaa=binarytodecimal(abc[0:ii])
print(aaa)
right=abc[ii+1:]
print(right)
e=0
o=0.5
for i in right:
f=int(i)*(o)
e+=f
o=o*0.5
# print(e)
ss=aaa+e
return ss
k=0
def move_decimal_left(decimal_str, n):
# Remove the decimal point from the string
ind=decimal_str.index(".")
# print(ind)
n=ind-n
global k
# print(n)
k=n
decimal_str = decimal_str.replace('.', '')
# Insert the decimal point n places from the left
shifted_decimal_str = decimal_str[:n] + '.' + decimal_str[n:]
return shifted_decimal_str
def decimaltobinary(decimal_num):
# Convert the whole number part to binary
whole_number = int(decimal_num)
# print(whole_number)
binary_whole = bin(whole_number)[2:] # Remove the '0b' prefix
#print(binary_whole)
# Convert the fractional part to binary
fractional_part = decimal_num - whole_number
binary_fractional = ''
while fractional_part != 0:
fractional_part *= 2
bit = int(fractional_part)
binary_fractional += str(bit)
fractional_part -= bit
# print(fractional_part)
# Normalize the binary fraction
binary = binary_whole + '.' + binary_fractional
binary_normalized = binary.lstrip('0')
#print(binary_normalized)
# Determine the exponent
shifted_places = len(binary_whole) - 1
#print(shifted_places)
exponent = shifted_places + 3 # Adjusted exponent with bias of 3
# Convert the exponent to binary
binary_exponent = bin(exponent)[2:].zfill(3)
# print(binary_exponent)
# Extract the mantissa
# print(binary_normalized)
binary_normalized=move_decimal_left(binary_normalized,shifted_places)
# print(binary_normalized)
# print(binary_normalized.replace('.', ''))
# print(binary_normalized)
# print(k)
mantissa = binary_normalized[k+1::]
# print(mantissa)
# Combine the parts
binary_representation = binary_exponent + mantissa
return binary_representation
def decimal_towtc_binary(decimal):
if isinstance(decimal, int):
binary = format(decimal, '08b')
return binary
elif isinstance(decimal, float):
binary = format(struct.unpack('!I', struct.pack('!f', decimal))[0], '016b')
return binary
else:
raise ValueError("Input must be an integer or float.")
def vaibhav(MEM):
b1 = (MEM[0:3:1]) #exponent
#print(b1)
b2 = (MEM[3:8:1]) #Mantissa
#print(b2)
s='1.'
s+=b2
s=float(s)
# print(s)
b1=binarytodecimal(b1)
#print(b1)
n=2**(b1-3)
if b1-3<0:
n=float(decimal_towtc_binary(n))
result=Decimal(str(n))*Decimal(str(s))
print(n)
print(s)
# print(n*s)
vk=str(result)
print(vk)
return pointvalabinary_todecimal(vk)
else:
n=float(decimal_towtc_binary(n))
result=Decimal(str(n))*Decimal(str(s))
# print(n*s)
vk=str(result)
#print(vk)
return pointvalabinary_todecimal(vk)
def binarytodecimal(str):
decimal = int(str, 2)
return decimal
def decimal_to_binary(decimal):
if isinstance(decimal, int):
binary = format(decimal, '016b')
return binary
elif isinstance(decimal, float):
binary = format(struct.unpack('!I', struct.pack('!f', decimal))[0], '016b')
return binary
else:
raise ValueError("Input must be an integer or float.")
def bitwise_or(binary1, binary2):
#bitwise OR operation
result = ''
for bit1, bit2 in zip(binary1, binary2):
if bit1 == '1' or bit2 == '1':
result += '1'
else:
result += '0'
return result
def bitwise_and(binary1, binary2):
#bitwise AND operation
result = ''
for bit1, bit2 in zip(binary1, binary2):
if bit1 == '1' and bit2 == '1':
result += '1'
else:
result += '0'
return result
def bitwise_not(binary):
#bitwise NOT operation
result = ''
for bit in binary:
if bit == '1':
result += '0'
else:
result += '1'
return result
MEM = ["0000000000000000"] * 128
data = []
while (True):
try:
w=input().strip()
data.append(w)
except EOFError:
break
t=0
for i in data:
i.strip("\n")
# print(i.strip("\n"))
MEM[t] = i.strip("\n")
t+=1
#print(data)
programcounter = 0
printcounter=0
# print(MEM)
while MEM[programcounter]!="1101000000000000":
current_instruction=MEM[programcounter]
i=programcounter
#! add operation
if MEM[i][0:5:1] == "00000": #! ADD FUNCTION
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(register[a])+binarytodecimal(register[b])
if result >=128:
flags[12] = 1
register[c]="0000000000000000"
flags=[0 for k in flags]
else:
result=decimal_to_binary(result)
register[c]=result
flags=[0 for k in flags]
elif MEM[i][0:5:1]=="00001": #!SUBTRACT
a=binarytodecimal(MEM[i][7:10:1])
b=binarytodecimal(MEM[i][10:13:1])
c=binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(register[a])-binarytodecimal(register[b])
# print(result)
if result>=0:
result=decimal_to_binary(result)
register[a]=result
flags=[0 for k in flags]
elif result<0:
flags[12] = 1
register[c]="0000000000000000"
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00110": #! MULTIPLICATION
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(register[a])*binarytodecimal(register[b])
if result >=128:
flags[12] = 1
register[c]="0000000000000000"
flags=[0 for k in flags]
else:
result=decimal_to_binary(result)
register[c]=result
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00111": #! DIVIDE
c = binarytodecimal(MEM[i][10:13:1])
a = binarytodecimal(MEM[i][13:16:1])
if binarytodecimal(register[a])==0:
print("OVERFLOW")
flags[12] = 1
register[0]="0000000000000000"
register[1]="0000000000000000"
flags=[0 for k in flags]
else:
register[0]=decimal_to_binary((binarytodecimal(register[c]))//(binarytodecimal(register[a])))
register[1]=decimal_to_binary((binarytodecimal(register[c]))%(binarytodecimal(register[a])))
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01011": #! OR
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(bitwise_or(register[a],register[b]))
result=decimal_to_binary(result)
register[c]=result
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01100": #! AND
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(bitwise_and(register[a],register[b]))
result=decimal_to_binary(result)
register[c]=result
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01101": #! Invert not function
c = binarytodecimal(MEM[i][10:13:1])
a = binarytodecimal(MEM[i][13:16:1])
result=binarytodecimal(bitwise_not(register[a]))
result=decimal_to_binary(result)
register[c]=result
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01010": #! XOR
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
xv=decimal_to_binary(int(binarytodecimal((register[a])))^int(binarytodecimal((register[b]))))
# print(xv)
# print("njvevnefnv")
register[c]=xv
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01110": #! COMPARE
C = binarytodecimal(MEM[i][10:13:1])
A = binarytodecimal(MEM[i][13:16:1])
c=register[C]
a=register[A]
if c<a:
flags[13]=1
elif c>a:
flags[14]=1
else:
flags[15]=1
elif MEM[i][0:5:1] == "01000": #! RIGHT SHIFT
c = binarytodecimal(MEM[i][6:9:1])
a = int(binarytodecimal(MEM[i][9:16:1]))
register[c]=decimal_to_binary(binarytodecimal(register[c])>>a)
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01001": #! LEFT SHIFT
c = binarytodecimal(MEM[i][6:9:1])
a = int(binarytodecimal(MEM[i][9:16:1]))
register[c]=decimal_to_binary(binarytodecimal(register[c])<<a)
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00010": #MOV IMMEDIATE
a = binarytodecimal(MEM[i][6:9:1])
b = binarytodecimal(MEM[i][9:16:1])
register[a]=decimal_to_binary(b)
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00011": #MOV REGISTER
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
if b==7:
s1=''
for j in range(len(flags)):
s1+=str(flags[j])
register[a]=s1
flags=[0 for k in flags]
else:
register[a]=register[b]
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00100": #LOAD
a = binarytodecimal(MEM[i][6:9:1])
b = binarytodecimal(MEM[i][9:16:1])
register[a]=MEM[b]
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "00101": #STORE
a = binarytodecimal(MEM[i][6:9:1])
b = binarytodecimal(MEM[i][9:16:1])
MEM[b]=register[a]
# print(MEM[b])
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "01111": #UNCONDITIONAL JUMP
a = binarytodecimal(MEM[i][9:16:1])
flags=[0 for k in flags]
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
for j in range(len(flags)):
s+=str(flags[j])
print(s)
programcounter=a
# flags=[0 for k in flags]
continue
elif MEM[i][0:5:1] == "11100": #JUMP elif LESS THAN
# print("vkakmefvsenbnsr")
a = binarytodecimal(MEM[i][9:16:1])
# print(a)
if flags[13]==1:
flags=[0 for k in flags]
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
for j in range(len(flags)):
s+=str(flags[j])
print(s)
programcounter=a
continue
else:
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "11101": #JUMP IF GREATER THAN
a = binarytodecimal(MEM[i][9:16:1])
# print(a)
if flags[14]==1:
flags=[0 for k in flags]
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
for j in range(len(flags)):
s+=str(flags[j])
print(s)
programcounter=a
continue
else:
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "10010": #MOVF IMMEDIATE
a = binarytodecimal(MEM[i][5:8:1])
b = MEM[i][8:16:1]
register[a]="00000000"+b
# print(register[a])
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "10000": #add function
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
vaibhavvansh=vaibhav(register[a][8::])
#print(vaibhavvansh)
vaibhavvansh2=vaibhav(register[b][8::])
#print(vaibhavvansh2)
vaibhavvansh3=vaibhavvansh+vaibhavvansh2
print(vaibhavvansh3)
fg=decimaltobinary(vaibhavvansh3)
if len(fg)>8:
# print(fg)
register[c]="0000000000000000"
flags[12]=1
else:
undertaker=len(fg)
fg+=(16-undertaker)*"0"
register[c]=fg
flags=[0 for k in flags]
# print(fg)
elif MEM[i][0:5:1] == "10001": #add function
c = binarytodecimal(MEM[i][7:10:1])
a = binarytodecimal(MEM[i][10:13:1])
b = binarytodecimal(MEM[i][13:16:1])
vaibhavvansh=vaibhav(register[a][8::])
#print(vaibhavvansh)
vaibhavvansh2=vaibhav(register[b][8::])
#print(vaibhavvansh2)
vaibhavvansh3=vaibhavvansh-vaibhavvansh2
# print(vaibhavvansh3)
# fg=decimaltobinary(vaibhavvansh3)
if vaibhavvansh3<0:
# print(fg)
register[c]="0000000000000000"
flags[12]=1
else:
fg=decimaltobinary(vaibhavvansh3)
undertaker=len(fg)
fg+=(16-undertaker)*"0"
register[c]=fg
flags=[0 for k in flags]
elif MEM[i][0:5:1] == "11111": #JUMP IF EQUAL TO
a = binarytodecimal(MEM[i][9:16:1])
if flags[15]==1:
flags=[0 for k in flags]
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
for j in range(len(flags)):
s+=str(flags[j])
print(s)
programcounter=a
# flags=[0 for k in flags]
continue
else:
flags=[0 for k in flags]
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
for j in range(len(flags)):
s+=str(flags[j])
print(s)
programcounter+=1
print(decimal_to_binary(programcounter)[9::],end=' ')
for i in range(len(register)):
print(register[i],end=" ")
s=''
flags=[0 for k in flags]
for j in range(len(flags)):
s+=str(flags[j])
print(s)
for i in range(len(MEM)):
print(MEM[i])