SimpleSimulator_oldformat.py

import fileinput



import sys
# hlt={"hlt":"01010"}


reg={"000":"R0","001":"R1","010":"R2","011":"R3","100":"R4","101":"R5","110":"R6","111":"FLAGS"}
# reg={"R0":"000","R1":"001","R2":"010","R3":"011","R4":"100","R5":"101","R6":"110"}

# opcode_A={"add":"10000","sub":"10001","mul":"10110","xor":"11010","or":"11011","and":"11100",}
# opcode_B={"mov":"10010","ls":"11001",'rs':'11000'}
# opcode_C={"mov":"10011","div":"10111","not":"11101","cmp":"11110",}
# opcode_D={"ld":"10100","st":"10101"}
# opcode_E={"jmp":"11111","jlt":"01100","jgt":"01101","je":"01111"}
R0=R1=R2=R3=R4=R5=R6=0

V=0   # overflow & underflag same flag 
G=0
L=0
E=0
halt = 0
PC = 0

var ={}

def updatereg(a,regname):
    global R0,R1,R2,R3,R4,R5,R6
    globals()[(regname)]=a



def findReg(a):
    global R0,R1,R2,R3,R4,R5,R6
    if(reg[a]=="R0"):
        return "R0"
    elif(reg[a]=="R1"):
        return "R1"
    elif(reg[a]=="R2"):
        return "R2"
    elif(reg[a]=="R3"):
        return "R3"
    elif(reg[a]=="R4"):
        return "R4"
    elif(reg[a]=="R5"):
        return "R5"
    elif(reg[a]=="R6"):
        return "R6"    
    


# op code  r1 r2 r3 
def Add(n):
    global PC
    global V,L,G,E
    b = globals()[findReg(n[7:10])]
    c = globals()[findReg(n[10:13])]
    # print(type(b))
    temp=b+c
    if(temp>65536):
        V=1
        temp=temp % 65536
    updatereg(temp , findReg(n[13:16])) 
    G=0
    L=0
    E=0
    PC+=1

def Sub(n):
    global PC
    global V,L,G,E
    b = globals()[findReg(n[7:10])]
    c = globals()[findReg(n[10:13])]
    temp=b-c
    
    if (temp<0):
        V=1
        updatereg(0 , findReg(n[13:16]))
        return 0
    if(temp>65536):
        V=1
        temp=temp % 65536
        updatereg(temp , findReg(n[13:16]))
        return 0
    updatereg(temp , findReg(n[13:16]))
    G=0
    L=0
    E=0
    PC+=1
   

def Mul(n):
    global PC
    global V,L,G,E
    b = globals()[findReg(n[7:10])]
    c = globals()[findReg(n[10:13])]
    temp=b*c
    if(temp>65536):
        V=1
        temp= temp % 65536
    updatereg(temp , findReg(n[13:16]))
    G=0
    L=0
    E=0
    PC+=1

def Mov(n):  # need to check how many bits to copy
    global PC
    global V,L,G,E
    updatereg(int(n[8:16],2),findReg(n[5:8]))
    G=0
    L=0
    E=0
    PC+=1

#12 VLGE
def movreg(n):
    global PC
    global V,L,G,E
    if n[10:13]=="111":
        flagval = (12*"0") + str(V) + str(L) + str(G) + str(E)
        globals()[findReg(n[13:16])]=int(flagval,2)                         
    else:
        updatereg(globals()[findReg(n[10:13])],findReg(n[13:16]))
    G,L,E=0,0,0
    PC+=1

def Div(n):
    global PC
    global V,L,G,E
    global R0,R1
    b = globals()[findReg(n[10:13])]
    c = globals()[findReg(n[13:16])]
    R0=b//c
    R1=b%c
    G,L,E=0,0,0
    PC+=1

def ls(n):
    global PC
    global V,L,G,E
    regname=findReg(n[5:8])
    b=int(n[8:16],2)
    temp = globals()[regname] << b
    if(temp>65536):
        V =1
        temp= temp % 65536 # just for now 
        globals()[regname] = temp
    else:
        globals()[regname] = temp
    G,L,E=0,0,0
    PC+=1
    

def rs(n):
    global PC
    global V,L,G,E
    regname=findReg(n[5:8])
    b=int(n[8:16],2)
    globals()[regname] = globals()[regname] >> b
    G,L,E=0,0,0
    PC+=1

def And(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[7:10])]
    b = globals()[findReg(n[10:13])]
    temp = a & b
    globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1
    

def Or(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[7:10])]
    b = globals()[findReg(n[10:13])]
    temp = a | b
    globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1

def Not(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[10:13])]
    temp = ~a
    globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1

def Xor(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[7:10])]
    b = globals()[findReg(n[10:13])]
    temp = a ^ b
    globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1
    
    

def Compare(n):   # need to reset flag zero after execution of every normal instruction
    global PC
    global V,L,G,E
    a = globals()[findReg(n[10:13])]
    b = globals()[findReg(n[13:16])]
    
    
    global G,L,E
    if a> b:
        G = 1
        # print("G=1")
    elif a< b:
        L = 1
        # print("l=1")
    elif a == b:
        E = 1
    PC+=1

def Load(n):
    global PC
    global V,L,G,E
    regname=findReg(n[5:8])
    b = n[8:16]
    globals()[regname] = int(var[b],2)   # var value is in binary
    G,L,E=0,0,0
    PC+=1

def Store(n):
    global PC
    global V,L,G,E
    regname=findReg(n[5:8])
    b = n[8:16]
    temp = globals()[regname]
    var[b]= str(bin(temp).replace("0b",""))
    
    G,L,E=0,0,0
    PC+=1

def Jmp(n):   # LABEL MAY BE STR VALUE OF bin TYPE
    global PC
    global V,L,G,E
    label = n[8:16]
    PC = int(label,2)
    G,L,E=0,0,0

def Jlt(n):
    global PC
    global V,L,G,E
    label = n[8:16]
    if(L==1):
        PC = int(label,2)
    else:
        PC+=1
    G,L,E=0,0,0

def Jgt(n):
    global PC
    global V,L,G,E
    label = n[8:16]
    if(G==1):
        PC = int(label,2)
    else:
        PC+=1
    G,L,E=0,0,0

def Je(n):
    global PC
    global V,L,G,E
    label = n[8:16]
    if(E==1):
        PC = int(label,2)
    else:
        PC+=1
    G,L,E=0,0,0

# Floating point functions  #2.5
# V = 0
def binconvo(n):
    global V
    n=str(n)
    floatlist=n.split(".")
    bin1=str(bin(int(floatlist[0])).replace("0b",""))
    dec="."+floatlist[1]
    dec=float(dec)
    convert=""
    count= 5 - (len(bin1)-1)
    # print("Count:",count)
    # exponent=count-1
    # print("EX: ",exponent)
    

    while(dec!=0):
        # print("Count=",count)
        dec=float(dec*2)
        flist=str(dec).split(".")
        integer=flist[0]
        dec=float("."+(flist[1]))
        convert+=integer
        count-=1
        if(count<0):
          break
        
    return str(bin1+"."+convert),count

def intconvo(n):
    n = str(n)
    expo=n[0:3]
    integer = int(expo,2)
    integer = integer-3
    man=n[3:8]
    count = -1
    sum1 =0
    for i in man:
      if i == "1":
        sum1 = sum1 + 2**(count)
      count-=1
    man = 1+ float(str(sum1))
    final = man * (2**(integer))
    return final
    

    


def checkValid(str1,count):
    global V
    if(count<0):
      V=1   #NEED TO CHANGE HERE
      return False
      
    datalist=""
    list2=list(str1)
    ind1 = list2.index(".")
    list2.remove(".")
    list2.insert(1,".")
    #print(list2)
    expo = str(ind1 -1)
    expo=int(expo)+3
    expo = str(bin(expo).replace("0b",""))
    if(len(expo)>3):
      V=1     # MAY NEED TO CHNAGE HERE
      return False
    if(len(expo)<3):
        while(len(expo)<3):
            expo="0"+ expo
    for i in list2:
        datalist+=str(i)
    flotlist = datalist.split(".")
    man = str(flotlist[1])
    if(len(man)<5):
        while(len(man)<5):
            man+="0"
    
    # print("Ex: ",expo)
    # print(man)
    return expo+man
# add
# str6,count = binconvo(5.)
# print("B ",str6)
# checkValid(str6,count)


    

                
        

# str1=str(flo(50.0))
# print(str1)
# ex=-1
# for i in str1:
#   if(i=="."):
#     break
#   ex+=1
# print("EX",ex)

def Add_F(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[7:10])]
    b = globals()[findReg(n[10:13])]
    temp=a+b 
    if(temp>31.5):
        globals()[findReg(n[13:16])]= 31.5
        V=1
    else:
        converted,count = binconvo(float(temp))
        converted = checkValid(converted,count)
        if(converted==False):
            globals()[findReg(n[13:16])]= 1.0             #Need to ask
            V=1
        else:
            globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1
        
def Sub_F(n):
    global PC
    global V,L,G,E
    a = globals()[findReg(n[7:10])]
    b = globals()[findReg(n[10:13])]
    temp=a-b
    if(temp>31.5):
        globals()[findReg(n[13:16])]= 31.5
        V=1
    elif(temp<0):
        globals()[findReg(n[13:16])]=1.0
        V=1
    else:
        converted,count = binconvo(float(temp))
        converted = checkValid(converted,count)
        if(converted==False):
            globals()[findReg(n[13:16])]=1.0  # Just for now
            V=1
        else:
            globals()[findReg(n[13:16])]=temp
    G,L,E=0,0,0
    PC+=1

def Mov_F(n):
    global PC
    global V,L,G,E
    a = n[8:16]
    temp=intconvo(a)
    globals()[findReg(n[5:8])]=temp
    G,L,E=0,0,0
    PC+=1
    
    

op={"10000":Add,"10001":Sub,"10010":Mov,"10011":movreg,"10100":Load,"10101":Store,"10110":Mul,
"10111":Div,"11000":rs,"11001":ls,"11010":Xor,
"11011":Or,"11100":And,"11101":Not,"11110":Compare,"11111":Jmp,"01100":Jlt,"01101":Jgt,"01111":Je,
"00000":Add_F,"00001":Sub_F,"00010":Mov_F}



datalist=[]
def engine(pc):
    global PC,halt,datalist
    
    n = datalist[pc]
    if(n[0:5]=="01010"):
        halt=1
        return halt
    op[n[0:5]](n)
    printall(pc)
    return halt
    
eachline=""
def printall(pc):
    eachline=""
    global R0,R1,R2,R3,R4,R5,R6
    global V,L,G,E
    #print("NEW")
    pc=str(bin(pc).replace("0b",""))
    while(len(pc)<8):
        pc="0"+pc
    eachline+=pc+" "
    # print(pc," ")

    r0 = R0
    r1 = R1
    r2 = R2
    r3 = R3
    r4 = R4
    r5 = R5
    r6 = R6
    if(str(type(r0))=="<class 'float'>"):
        tempstr,count = binconvo(r0)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000" + (IEEE + " ")
        #print("R0=","00000000" + IEEE) # how to print ieee in 8 bits or 16 bits
    else:
        r0=str(bin(R0).replace("0b",""))
        while(len(r0)<16):
            r0="0"+r0
        eachline+=r0 + " "
        # print("R0=",R0)
        # print(r0," ")
        
     
    if(str(type(r1))=="<class 'float'>"):
        tempstr,count = binconvo(r1)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+ (IEEE+" ")
        #print("R1=","00000000" + IEEE)
    else:
        r1=str(bin(R1).replace("0b",""))
        while(len(r1)<16):
            r1="0"+r1
        eachline+=r1+" "
        # print("R1=",R1)
        # print(r1," ")
    
    if(str(type(r2))=="<class 'float'>"):
        tempstr,count = binconvo(r2)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+(IEEE+" ")
        # print("R2=","00000000" + IEEE)
    else:
        r2=str(bin(R2).replace("0b",""))
        while(len(r2)<16):
            r2="0"+r2
        eachline+=r2+" "
        # print("R2=",R2)
        # print(r2," ")
        
    if(str(type(r3))=="<class 'float'>"):
        tempstr,count = binconvo(r3)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+ (IEEE+" ")
        # print("R3=","00000000" + IEEE)
    else:
        r3=str(bin(R3).replace("0b",""))
        while(len(r3)<16):
            r3="0"+r3
        eachline+=r3+" "
        # print("R3=",R3)
        # print(r3," ")
    if(str(type(r4))=="<class 'float'>"):
        tempstr,count = binconvo(r4)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+ (IEEE+" ")
        # print("R4=","00000000" + IEEE)
    else:
        r4=str(bin(R4).replace("0b",""))
        while(len(r4)<16):
            r4="0"+r4
        eachline+=r4+" "
        # print("R4=",R4)
        # print(r4," ")

    if(str(type(r5))=="<class 'float'>"):
        tempstr,count = binconvo(r5)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+ (IEEE+" ")
        # print("R5=","00000000" + IEEE)
    else:
        r5=str(bin(R5).replace("0b",""))
        while(len(r5)<16):
            r5="0"+r5
        eachline+=r5+" "
        # print("R5=",R5)
        # print(r5," ")
    
    if(str(type(r6))=="<class 'float'>"):
        tempstr,count = binconvo(r6)
        IEEE=checkValid(tempstr,count)
        eachline+="00000000"+ (IEEE+" ")
        # print("R6=","00000000" + IEEE)
    else:
        r6=str(bin(R6).replace("0b",""))
        while(len(r6)<16):
            r6="0"+r6
        eachline+=r6+" "
        # print("R6=",R6)
        # print(r6," ")
    
    flgstr="0"*12
    flgstr=flgstr+ str(V) +str(L) +str(G) +str(E)
    eachline+=flgstr+" "
    # print(flgstr)

    
    print(eachline, file = sys.stdout)
    
# also need to print whole memory at end comprising 256 lines 

# run code

for line in fileinput.input():
    datalist.append(line)

for i in datalist:
    if(i[0:5]=="10100" or i[0:5]=="10101"):
        varname = i[8:16]
        var[varname]="0"

i=0
while i<len(datalist):
    if(datalist[i]=="\n"): 
        datalist.remove("\n")   # Check by running
    else:
        i+=1

# print(datalist)
while(not halt):
    halt = engine(PC)

printall(PC)

# print(var)
inscount=0
# print(datalist)
for i in datalist:
    print(str(i)[0:len(i)-1], file = sys.stdout)
    # print(i)
    inscount+=1

# inscount+= len(var)


if(len(var)>0):
    varlist=list(var.keys())
    #print(varlist)
    varlist.sort()
    strvar=""
    for i in varlist:
        strvar=var[i]
        while(len(strvar)<16):
            strvar="0"+strvar
        print(strvar, file = sys.stdout)
        inscount+=1

# print("break")

inscount=256 - inscount
while inscount>0:
    print("0000000000000000", file = sys.stdout)
    inscount-=1