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main.py
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main.py
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# have to ask gupta about some issues faced by me in jump statements
# fh=open(r"D:\CO PROJECT @)@#\testcase.txt",'r+')
import sys
dicttoholdval={'R0': '0000000000000000',
'R1': '0000000000000000',
'R2': '0000000000000000',
'R3': '0000000000000000',
'R4': '0000000000000000',
'R5': '0000000000000000',
'R6': '0000000000000000',
'FLAGS': '0000000000000000'} # dictionary to hold value set pairs with registers
tmpdict=[] # to store variables
dictregister={'R0':'000','R1':'001','R2':'010','R3':'011',"R4":'100',"R5":'101','R6':'110','FLAGS':'111'}
l=[] # creating new list to add the series of intructions in stack form LIFO
c=0
fg=0
def stack(l,x): # stack Maintaing machine codes works on lifo order
# print(x)
l.append(x)
def printing(x): # helper function to print values checking errors
print(x)
def binaryToDecimal(binary): # helper function to convert binary to decimal
d=i=0
while binary!=0:
s=binary%10
d+=(s*(2**i))
binary//=10
i+=1
return d
count=-1
hlt_ct=0
lopi=[]
verdict=0
while True: # label handling and variable definations
try:
ap=input()
pa=ap.split()
lopi.append(pa)
# print(pa)
#print(pa)
if pa==[]:
pass
elif ap.count(':')==1:
dicttoholdval[pa[0]]='0'*(7-len(((str(bin(verdict)))[2::])))+((str(bin(verdict)))[2::])
elif ap.count(':')>1:
print("SYNTAX ERROR IN LABEL")
sys.exit()
elif pa[0]=='var':
tmpdict.append(pa[1])
if verdict>127:
break
if pa[0]!='var':
verdict+=1
except:
break
# fh.seek(0,0)
fg=0
for j in range(len(lopi)):
p=lopi[j]
# print(p)
if p==[]:
pass
elif p[0]!='var' and p!=[]:
c+=1
elif 'jmp' in p:
op=i
kop=c
for k in range(i):
poc= lopi[k]
# print(poc)
if poc==[]:
pass
elif poc[0][0:-1]==p[1]:
break
kop+=1
if kop>127:
break
# print(kop)
dicttoholdval[p[1]]='0'*(7-len(str(bin(kop))[2::]))+(str(bin(kop))[2::])
elif 'jlt' in p:
op=i
kop=c
for k in range(len(lopi)):
poc= lopi[k]
# print(poc)
if poc==[]:
pass
elif poc[0][0:-1]==p[1]:
break
kop+=1
if kop>127:
break
# print(kop)
dicttoholdval[p[1]]='0'*(7-len(str(bin(kop))[2::]))+(str(bin(kop))[2::])
elif 'jgt' in p:
op=i
kop=c
for k in range(i):
poc= lopi[k]
# print(poc)
if poc==[]:
pass
elif poc[0][0:-1]==p[1]:
break
kop+=1
if kop>127:
break
# print(kop)
dicttoholdval[p[1]]='0'*(7-len(str(bin(kop))[2::]))+(str(bin(kop))[2::])
elif 'je' in p:
op=i
kop=c
for k in range(len(lopi)):
poc= lopi[k]
# print(poc)
if poc==[]:
pass
elif poc[0][0:-1]==p[1]:
break
kop+=1
if kop>127:
break
# print(kop)
dicttoholdval[p[1]]='0'*(7-len(str(bin(kop))[2::]))+(str(bin(kop))[2::])
if 'hlt' in p:
hlt_ct+=1
if count>127:
pass
count+=1
# print(c)
aditya=0
for j in range(len(lopi)):
if not(hlt_ct):
print("HALT is missing")
sys.exit()
break
if hlt_ct>1:
print("MORE THAN 1 HALT INSTRUCTION IS THERE")
sys.exit()
try:
k=lopi[j] # opening the file
# print(k)
if k[0]=='add':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))+binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0000000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='mov' and str(k[2]).count('$')==1:
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
if int(str(k[2])[1::])>127 or int(str(k[2])[1::])<-128:
print("ELEMENT GREATER THAN 7 BIT APOLOGY SORRY \U0001F622")
sys.exit()
dicttoholdval[k[1]]='0'*(16-len((str(bin(int(k[2][1::])))[2::])))+(str(bin(int(k[2][1::])))[2::])
p='000100'+dictregister[k[1]]+('0'*(7-len((str(bin(int(k[2][1::])))[2::])))+(str(bin(int(k[2][1::])))[2::]))
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='mov' and str(k[2]).count('$')==0 :
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
dicttoholdval[k[1]]=dicttoholdval[k[2]]
op='0001100000'+dictregister[k[1]]+dictregister[k[2]]
# printing(dicttoholdval[k[1]])
stack(l,op)
elif k[0]=='sub':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))-binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0000100'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='ld':
fg=1
if k[2] not in tmpdict:
print(f"VARIABLE {k[2]} IS NOT DEFINED PLEASE CHECK")
sys.exit()
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
dicttoholdval[k[2]]="0"*(16-len(str(bin(c))[2::]))+str(bin(c))[2::]
p='001000'+dictregister[k[1]]+dicttoholdval[k[2]][9:]
stack(l,p)
c+=1
elif k[0]=='st':
fg=1
if k[2] not in tmpdict:
print(f"VARIABLE {k[2]} IS NOT DEFINED PLEASE CHECK")
sys.exit()
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
dicttoholdval[k[2]]="0"*(16-len(str(bin(c))[2::]))+str(bin(c))[2::]
p='001010'+dictregister[k[1]]+dicttoholdval[k[2]][9:]
stack(l,p)
c+=1
elif k[0]=='mul':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))*binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0011000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='div': # INCOMPLETE
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='0011100000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='xor':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))*binaryToDecimal(int(dicttoholdval[k[3]]))
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
p='0101000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
stack(l,p)
elif k[0]=='rs' and k[2].count('$')==1:
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
op=binaryToDecimal(int(dicttoholdval[k[1]])) # conversion to decimal takes place here
op=op>>int(k[2][1::]) # Right shiing of bits
op=bin(op)[2::]
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
ty='0'*(7-len(str((bin(int(k[2][1::])))[2::])))+str((bin(int(k[2][1::])))[2::]) # conversion in seven bits binary of entered value
p='010000'+dictregister[k[1]]+ty
# print(p)
stack(l,p)
elif k[0]=='ls' and k[2].count('$')==1:
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
op=binaryToDecimal(int(dicttoholdval[k[1]])) # conversion to decimal takes place here
op=op<<int(k[2][1::]) # Left shiing of bits
op=bin(op)[2::]
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
ty='0'*(7-len(str((bin(int(k[2][1::])))[2::])))+str((bin(int(k[2][1::])))[2::]) # conversion in seven bits binary of entered value
p='010010'+dictregister[k[1]]+ty
# print(p)
stack(l,p)
elif k[0]=='or':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op1=binaryToDecimal(int(dicttoholdval[k[2]]))
op2=binaryToDecimal(int(dicttoholdval[k[3]]))
opi=op1|op2
opi=bin(opi)[2::]
op='0'*(16-len(str(opi)))+str(opi)
# print(dicttoholdval)
dicttoholdval[k[1]]=op
p='0101100'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]]
stack(l,p)
elif k[0]=='and':
fg=1
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op1=binaryToDecimal(int(dicttoholdval[k[2]]))
op2=binaryToDecimal(int(dicttoholdval[k[3]]))
opi=op1&op2
opi=bin(opi)[2::]
op='0'*(16-len(str(opi)))+str(opi)
# print(dicttoholdval)
dicttoholdval[k[1]]=op
p='0110000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]]
stack(l,p)
elif k[0]=='not':
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
pil,new_val=dicttoholdval[k[2]],''
for i in pil:
if i=='1':new_val+='0'
else: new_val+='1'
dicttoholdval[k[1]]=new_val
p='0110100000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='cmp':
fg=1
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='0111000000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='jmp':
fg=1
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='011110000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='jlt':
fg=1
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='11100000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='jgt':
fg=1
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='111010000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='je':
fg=1
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='111110000'+dicttoholdval[k[1]+':']
stack(l,p)
elif 'hlt' in k and k[0].count(':')==0:
if len(k)!=1:
print("HAVE MORE than 1 label")
sys.exit()
p='11010'+'0'*11
stack(l,p)
if lopi[j+1::]!=[]:
print("TRACED AN ERROR\nFOUND SOME COMMAND AFTER HALT INSTRUCTION")
sys.exit()
break
elif k[0]=='var':
if (fg):
print("Variable declaration must not be after instruction")
sys.exit()
pass
elif k[0].count(':')==1:
p=k.pop(0)
if k[0]=='add':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))+binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0000000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='mov' and str(k[2]).count('$')==1:
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
if int(str(k[2])[1::])>127 or int(str(k[2])[1::])<-128:
print("ELEMENT GREATER THAN 7 BIT APOLOGY SORRY \U0001F622")
sys.exit()
dicttoholdval[k[1]]='0'*(16-len((str(bin(int(k[2][1::])))[2::])))+(str(bin(int(k[2][1::])))[2::])
p='000100'+dictregister[k[1]]+('0'*(7-len((str(bin(int(k[2][1::])))[2::])))+(str(bin(int(k[2][1::])))[2::]))
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='mov' and str(k[2]).count('$')==0 :
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
dicttoholdval[k[1]]=dicttoholdval[k[2]]
op='0001100000'+dictregister[k[1]]+dictregister[k[2]]
# printing(dicttoholdval[k[1]])
stack(l,op)
elif k[0]=='sub':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))-binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0000100'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='ld':
if k[2] not in tmpdict:
print(f"VARIABLE {k[2]} IS NOT DEFINED PLEASE CHECK")
sys.exit()
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
dicttoholdval[k[2]]="0"*(16-len(str(bin(c))[2::]))+str(bin(c))[2::]
p='001000'+dictregister[k[1]]+dicttoholdval[k[2]][9:]
stack(l,p)
c+=1
elif k[0]=='st':
if k[2] not in tmpdict:
print(f"VARIABLE {k[2]} IS NOT DEFINED PLEASE CHECK")
sys.exit()
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
dicttoholdval[k[2]]="0"*(16-len(str(bin(c))[2::]))+str(bin(c))[2::]
p='001010'+dictregister[k[1]]+dicttoholdval[k[2]][9:]
stack(l,p)
c+=1
elif k[0]=='mul':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))*binaryToDecimal(int(dicttoholdval[k[3]])) # storing the added values to a temp variable but in decimal
dicttoholdval[k[1]]='0'*(16-len(str(bin(op))[2::]))+str(bin(op))[2::] # here the register gets updated to new added values in the added previous registers that have
p='0011000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
# printing(dicttoholdval[k[1]])
stack(l,p)
elif k[0]=='div': # INCOMPLETE
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='0011100000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='xor':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op=binaryToDecimal(int(dicttoholdval[k[2]]))*binaryToDecimal(int(dicttoholdval[k[3]]))
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
p='0101000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]] # we have to store it in 16 bits 5 bits reservered for opcode
stack(l,p)
elif k[0]=='rs' and k[2].count('$')==1:
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
op=binaryToDecimal(int(dicttoholdval[k[1]])) # conversion to decimal takes place here
op=op>>int(k[2][1::]) # Right shiing of bits
op=bin(op)[2::]
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
ty='0'*(7-len(str((bin(int(k[2][1::])))[2::])))+str((bin(int(k[2][1::])))[2::]) # conversion in seven bits binary of entered value
p='010000'+dictregister[k[1]]+ty
# print(p)
stack(l,p)
elif k[0]=='ls' and k[2].count('$')==1:
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
op=binaryToDecimal(int(dicttoholdval[k[1]])) # conversion to decimal takes place here
op=op<<int(k[2][1::]) # Left shiing of bits
op=bin(op)[2::]
op='0'*(16-len(str(op)))+str(op)
dicttoholdval[k[1]]=op
ty='0'*(7-len(str((bin(int(k[2][1::])))[2::])))+str((bin(int(k[2][1::])))[2::]) # conversion in seven bits binary of entered value
p='010010'+dictregister[k[1]]+ty
# print(p)
stack(l,p)
elif k[0]=='or':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op1=binaryToDecimal(int(dicttoholdval[k[2]]))
op2=binaryToDecimal(int(dicttoholdval[k[3]]))
opi=op1|op2
opi=bin(opi)[2::]
op='0'*(16-len(str(opi)))+str(opi)
# print(dicttoholdval)
dicttoholdval[k[1]]=op
p='0101100'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]]
stack(l,p)
elif k[0]=='and':
if len(k)!=4:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
op1=binaryToDecimal(int(dicttoholdval[k[2]]))
op2=binaryToDecimal(int(dicttoholdval[k[3]]))
opi=op1&op2
opi=bin(opi)[2::]
op='0'*(16-len(str(opi)))+str(opi)
# print(dicttoholdval)
dicttoholdval[k[1]]=op
p='0110000'+dictregister[k[1]]+dictregister[k[2]]+dictregister[k[3]]
stack(l,p)
elif k[0]=='not':
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
pil,new_val=dicttoholdval[k[2]],''
for i in pil:
if i=='1':new_val+='0'
else: new_val+='1'
dicttoholdval[k[1]]=new_val
p='0110100000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='cmp':
if len(k)!=3:
print("HAVE EITHER MORE ARGUEMENTS OR LESS ARGUEMENTS")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='0111000000'+dictregister[k[1]]+dictregister[k[2]]
stack(l,p)
elif k[0]=='jmp':
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='011110000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='jlt':
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='11100000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='jgt':
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='111010000'+dicttoholdval[k[1]+':']
stack(l,p)
elif k[0]=='je':
if len(k)!=2:
print("HAVE MORE than 1 label")
sys.exit()
if 'FLAGS' in k:
print("Illegal use of Flags")
sys.exit(0)
p='111110000'+dicttoholdval[k[1]+':']
stack(l,p)
elif 'hlt' in k:
if len(k)!=1:
print("HAVE MORE than 1 label")
sys.exit()
p='11010'+'0'*11
stack(l,p)
if lopi[j+1::]!=[]:
print("TRACED AN ERROR\nFOUND SOME COMMAND AFTER HALT INSTRUCTION")
sys.exit()
break
elif k[0]=='var':
pass
else:
print("SYNTAX ERROR INSTRUCTION NAME HAS AN ERROR")
sys.exit()
break
else:
print("SYNTAX ERROR INSTRUCTION NAME HAS AN ERROR")
sys.exit()
break
# aditya+=1
# print(aditya)
# print(l)
except KeyError:
if k[0]=='mov':
if k[2].count('$')==0:
print("either $ is missing of the register is not defined to hhold value")
sys.exit()
if k[1] not in dicttoholdval:
print("Error: "+k[1]+" has some typo in it")
fg=1
elif k[0] in ['ld','st','jmp','je','jgt','je']:
if k[1] not in dictregister:
print(f"TYPO IN REGISTER NAME {k[1]} Or Label is not defined ")
fg=1
elif k[2] not in dicttoholdval:
print(f'Either variable not defined or variable is greater than 127')
fg=1
else:
if k[1] not in dictregister:
print(f"TYPO IN REGISTER NAME {k[1]}")
fg=1
elif k[2] not in dictregister:
print(f"TYPO IN REGISTER NAME {k[2]}")
fg=1
elif k[3] not in dictregister:
print(f"TYPO IN REGISTER NAME {k[3]}")
fg=1
if not(fg):
print("SYNTAX ERROR IN NAMING THE COMMAND")
sys.exit()
#file_assembler=open('Machine_code.txt','w')
for i in l:
print(i)