-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathCircuit_simulator.py
414 lines (330 loc) · 12.3 KB
/
Circuit_simulator.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
"""
----Title: Combinational Circuit Simulator Development----
------------Code written by Ayush Gangwar(B20CS008) and Shahzen Khan(B20CS065)---------
--------------Mentored by Dr. Binod Kumar-------------
"""
#CODE->
#importing random module for generating input...
#time module is used to calculate time taken for execution of code..
import random
import time
import pickle
#gates used in file..
# AND gate
def AND(l1):
l3=[]
for k in range(len(l1)-1):
l=[]
for i in range(len(l1[k])):
l1[k+1][i]=(l1[k][i] and l1[k+1][i])
l3=l1[-1]
return l3
# OR gate
def OR(l1):
l3=[]
for k in range(len(l1)-1):
l=[]
for i in range(len(l1[k])):
l1[k+1][i]=(l1[k][i] or l1[k+1][i])
l3=l1[-1]
return l3
# NOR gate
def NOR(l1):
l3=[]
for k in range(len(l1)-1):
l=[]
for i in range(len(l1[k])):
if(l1[0][k]==0 and l1[1][k]==0):
l1[k+1][i]= 1
else:
l1[k+1][i]= 0
l3=l1[-1]
return l3
# NOT gate
def NOT(l1):
l3=[]
for k in l1[0]:
if(k==0):
l3.append(1)
else:
l3.append(0)
return l3
# NAND gate
def NAND(l1):
l3=[]
for k in range(len(l1)-1):
l=[]
for i in range(len(l1[k])):
if(l1[0][k]==1 and l1[1][k]==1):
l1[k+1][i]= 0
else:
l1[k+1][i]=1
l3=l1[-1]
return l3
#XOR gate
def XOR(l1):
l3=[]
for k in range(len(l1[0])):
if(l1[0][k]== l1[1][k]):
l3.append(0)
else:
l3.append(1)
return l3
def decimalToBinary(n,ni): #function for converting n to its binary...
b = bin(n).replace("0b", "") # Python bin() function returns the binary string of a given integer...
return b.zfill(ni) #zfill pad zeros to a string of size ni...
# open() function opens a file, and returns it as a file object..
def main_run():
f=open("samplefile2.txt","r")
start=time.time() #start will store the initial time while code starts running..
Input=[] # Input will store the input lists (here generated by random function)...
Output=[] # Output stores the list we get after performing all operations..
inputindex=[] # for storing indexes used for imput in file..
outputindex=[] # stores indexes used for output in file...
i=0 # intialising variable for storing max indexe of input given..
o=0 # intialising variable for storing max index of output required...
no=0 # stores number of output required...
ni=0 # stores number of input required.....
#loop for INPUT lists...
while(1):
s= f.readline() #readline function returns one line from file as string...
if(s=="\n"):
break
else:
if("INPUT" in s):
ni+=1
d=s.index("(")
d+=1
index=""
while(s[d]!=")" and s[d]!=" "):
index+=s[d]
d+=1
index=int(index)
inputindex.append(index-1)
if(index>i):
i=index
#loop for iterating OUTPUT lists...
while(1):
s=f.readline()
if(s=="\n"):
break
else:
if("OUTPUT" in s):
no+=1
d=s.index("(")
d+=1
index=""
while(s[d]!=")" and s[d]!=" "):
index+=s[d]
d+=1
index=int(index)
outputindex.append(index-1)
if(index>o):
o=index
for k in range(ni):
l=[]
Input.append(l)
for k in range(no):
l=[]
Output.append(l)
list1 = []
for x in range(0,200):
x1 = random.randrange(400, 900000,2) #randrange() method returns a randomly selected element from the specified range
a=decimalToBinary(x1,ni)
for element in range(0, len(a)):
list1.append(int(a[element]))
pr=0
for k in list1:
Input[pr].append(k)
pr+=1
list1 = []
#read remaining lines using readlines..and stores in lines as list..
lines=f.readlines()
LL=[]
for k in lines:
LL.append(k)
le=len(LL)
Indexesused=[] #contain all index numbers used for intermediate outputs...
for i in range(le):
s=LL[i]
index=""
for k in s[ : ]:
if(k==" " or k=="="):
break
else:
index+=k
appendindex=int(index)-1
if(appendindex not in outputindex and appendindex not in inputindex):
if(appendindex not in Indexesused):
Indexesused.append(appendindex)
d=len(s)
pr=s.index("(")
pr+=1
while(pr<d):
if(s[pr]==")"):
break
elif(s[pr]==" " or s[pr]==","):
pr+=1
pass
else:
index=""
while(s[pr]!="," and s[pr]!=")" and s[pr]!=" "):
index+=s[pr]
pr+=1
index=int(index)-1
if((index not in outputindex) and (index not in inputindex)):
if(index not in Indexesused):
Indexesused.append(index)
Indexesused.sort()
ref=Indexesused[0] #reference index for intermediate inputs....
reo=Indexesused[-1]
reou=outputindex[0] #reference index used for Output..
L=[] #for storing interemediate output...
visited=[] #visited lists...
#initialising all values of L and visited by 1..
for k in range(reo+1):
L.append(1)
visited.append(1)
for i in range(ref,reo+1):
if(i in Indexesused):
L[i]=-1 #L[i]==-1 if we had not visit that index yet..
visited[i]=-1
else:
L[i]=1
# main algorithm for getting all output and intermediate outputs of files...
while(1):
if(sum(visited[ : ])==no+len(L)):
break #break when all indexes will visited...
else:
for i in range(le):
count=0
operationlist=[] #stores all lists used in a gate operation.
s=LL[i]
index=""
for k in s[ : ]:
if(k==" " or k=="="):
break
else:
index+=k
appendindex=int(index)-1 #appendindex is index of output of gate operation.
br=s.index("=")
gate="" #gate used in that operation.
for k in s[br+1: ]:
if(k=="("):
break
elif(k==" "):
pass
else:
gate+=k
if(appendindex in Indexesused): #if output is of intermediate type..
#algo for iterating operative string.
d=len(s)
pr=s.index("(")
pr+=1
while(pr<d):
if(s[pr]==")"):
break
elif(s[pr]==" " or s[pr]==","):
pr+=1
pass
else:
index=""
while(s[pr]!="," and s[pr]!=")" and s[pr]!=" "):
index+=s[pr]
pr+=1
index=int(index)-1
if(index in inputindex):
operationlist.append(Input[index])
elif(index in Indexesused):
if(L[index]==-1):
count+=1
else:
operationlist.append(L[index])
#call of respective gates if we have all index as needed..
if(count==0):
visited[appendindex]=1 #make index visited by replacing -1 to 1.
if(gate=="AND"):
Li=list(AND(operationlist))
L[appendindex]=Li
elif(gate=="OR"):
Li=OR(operationlist)
L[appendindex]=Li
elif(gate=="NOR"):
Li=NOR(operationlist)
L[appendindex]=Li
elif(gate=="NOT"):
Li=NOT(operationlist)
L[appendindex]=Li
elif(gate=="NAND"):
Li=NAND(operationlist)
L[appendindex]=Li
elif(gate=="XOR"):
Li=NAND(operationlist)
L[appendindex]=Li
else:
pass
elif(appendindex in outputindex): #if output is of final output we needed..
#iterating string..
d=len(s)
pr=s.index("(")
pr+=1
while(pr<d):
if(s[pr]==")"):
break
elif(s[pr]==" " or s[pr]==","):
pr+=1
pass
else:
index=""
while(s[pr]!="," and s[pr]!=")" and s[pr]!=" "):
index+=s[pr]
pr+=1
index=int(index)-1
if(index in inputindex):
operationlist.append(Input[index])
elif(index in Indexesused):
if(L[index]==-1):
count+=1
else:
operationlist.append(L[index])
#call of particular gates..
if(count==0): #if all indexes needed in operation are visited.
visited.append(1)
if(gate=="AND"):
Li=list(AND(operationlist))
Output[appendindex-reou]=Li
elif(gate=="OR"):
Li=OR(operationlist)
Output[appendindex-reou]=Li
elif(gate=="NOR"):
Li=NOR(operationlist)
Output[appendindex-reou]=Li
elif(gate=="NOT"):
Li=NOT(operationlist)
Output[appendindex-reou]=Li
elif(gate=="NAND"):
Li=NAND(operationlist)
Output[appendindex-reou]=Li
elif(gate=="XOR"):
Li=NAND(operationlist)
L[appendindex]=Li
else:
pass
else:
pass
# algo ended...and we have all Output in Output list..
end=time.time() #end will stores the time when codes ended..
# Totaltime=end-start #time taken by code to run..
input_file=open("Input.txt","w")
for k in range(len(Input)):
input_file.write(str(Input[k]))
input_file.write("\n")
input_file.close()
output_file=open("output.txt","w")
for k in range(len(Output)):
output_file.write(str(Output[k]))
output_file.write("\n")
output_file.close()
return outputindex,inputindex
# print(Totaltime)
# "Input"+str(inputindex[k]+1)+":"+