-
Notifications
You must be signed in to change notification settings - Fork 0
/
registers.py
509 lines (449 loc) · 14.9 KB
/
registers.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
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
from exceptions import InterpreterRegisterError, InterpreterTypeError
from configuration import Configuration
class Registers:
register_hotmap = []
reg_base = 10
# $zero
zero = 0
# value registers
v0 = 0
v1 = 0
# argument registers
a0 = 0
a1 = 0
a2 = 0
a3 = 0
# temporary registers
t0 = 0
t1 = 0
t2 = 0
t3 = 0
t4 = 0
t5 = 0
t6 = 0
t7 = 0
t8 = 0
t9 = 0
# saved registers
s0 = 0
s1 = 0
s2 = 0
s3 = 0
s4 = 0
s5 = 0
s6 = 0
s7 = 0
# register return address
ra = 0
# stack pointer
sp = 0
# floating point registers
f0 = 0.0
f1 = 0.0
f2 = 0.0
f3 = 0.0
f4 = 0.0
f5 = 0.0
f6 = 0.0
f7 = 0.0
f8 = 0.0
f9 = 0.0
f10 = 0.0
f11 = 0.0
f12 = 0.0
f13 = 0.0
f14 = 0.0
f15 = 0.0
f16 = 0.0
f17 = 0.0
f18 = 0.0
f19 = 0.0
f20 = 0.0
f21 = 0.0
f22 = 0.0
f23 = 0.0
f24 = 0.0
f25 = 0.0
f26 = 0.0
f27 = 0.0
f28 = 0.0
f29 = 0.0
f30 = 0.0
f31 = 0.0
hi = 0
lo = 0
def __init__(self):
self.reg_base = Configuration().get_config("register_base")
# returns the values of all the registers as strings
def __str__(self):
value_registers = f"v0: {self.v0} \nv1: {self.v1}\n"
argument_registers = f"a0: {self.a0} \na1: {self.a1} \na2: {self.a2} \na3: {self.a3}\n"
temporary_registers = f"t0: {self.t0} \nt1: {self.t1} \nt2: {self.t2} \nt3: {self.t3} \nt4: {self.t4} \nt5: {self.t5} \nt6: {self.t6} \nt7: {self.t7} \nt8: {self.t8} \nt9: {self.t9}\n"
saved_registers = f"s0: {self.s0} \ns1: {self.s1} \ns2: {self.s2} \ns3: {self.s3} \ns4: {self.s4} \ns5: {self.s5} \ns6: {self.s6} \ns7: {self.s7}\n"
return_address = f"ra: {self.ra}\n"
hi_lo = f"hi: {self.hi} \nlo: {self.lo}\n"
floating_point_registers = f"f0: {self.f0} \nf1: {self.f1} \nf2: {self.f2} \nf3: {self.f3} \nf4: {self.f4} \nf5: {self.f5} \nf6: {self.f6} \nf7: {self.f7} \nf8: {self.f8} \nf9: {self.f9} \nf10: {self.f10} \nf11: {self.f11} \nf12: {self.f12} \nf13: {self.f13} \nf14: {self.f14} \nf15: {self.f15} \nf16: {self.f16} \nf17: {self.f17} \nf18: {self.f18} \nf19: {self.f19} \nf20: {self.f20} \nf21: {self.f21} \nf22: {self.f22} \nf23: {self.f23} \nf24: {self.f24} \nf25: {self.f25} \nf26: {self.f26} \nf27: {self.f27} \nf28: {self.f28} \nf29: {self.f29} \nf30: {self.f30} \nf31: {self.f31}\n"
return f"{value_registers}\n{argument_registers}\n{temporary_registers}\n{saved_registers}\n{return_address}\n{hi_lo}\n{floating_point_registers}"
def get_all_registers_as_list(self):
return [
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
"v0", "v1",
"a0", "a1", "a2", "a3",
"ra", "sp",
"hi", "lo",
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"
]
def clear_registers(self):
all_registers = self.get_all_registers_as_list()
for register in all_registers:
self.set_register(register, 0)
def get_register_validity(self, register):
try:
self.get_register(register)
return True
except InterpreterRegisterError:
return False
def add_to_register_hotmap(self, register):
if register in self.register_hotmap:
self.register_hotmap.remove(register)
if len(self.register_hotmap) >= 3:
self.register_hotmap.pop(0)
self.register_hotmap.append(register)
else:
self.register_hotmap.append(register)
def convert_number_base(self, value):
if isinstance(value, int):
value = int(str(value), self.reg_base)
elif value[0:2:] == "0x":
value = int(value, 16)
elif value[0:2:] == "0b":
value = int(value, 2)
return value
def set_register(self, register, value):
if register == "sp":
self.set_stack_pointer(value)
elif register == "ra":
self.set_return_address(value)
elif register == "hi":
self.set_hi_register(value)
elif register == "lo":
self.set_lo_register(value)
elif register[0] == "t":
self.set_temporary_register(register, value)
elif register[0] == "s":
self.set_saved_register(register, value)
elif register[0] == "v":
self.set_value_register(register, value)
elif register[0] == "a":
self.set_argument_register(register, value)
elif register[0] == "f":
self.set_floating_point_register(register, float(value))
elif register[0] == "zero":
pass
else:
raise InterpreterRegisterError(f"Invalid register name: {register}")
def get_register(self, register):
if register[0] == "t":
return self.get_temporary_register(register)
if register[0] == "s":
return self.get_saved_register(register)
if register[0] == "v":
return self.get_value_register(register)
if register[0] == "a":
return self.get_argument_register(register)
if register[0] == "f":
return self.get_floating_point_register(register)
if register == "ra":
return self.get_return_address()
if register == "hi":
return self.get_hi_register()
if register == "lo":
return self.get_lo_register()
if register == "zero":
return 0
raise InterpreterRegisterError(f"Invalid register name: {register}")
def set_temporary_register(self, register, value):
if not isinstance(value, int):
raise InterpreterTypeError("Value must be an integer")
if register == "t0":
self.t0 = value
elif register == "t1":
self.t1 = value
elif register == "t2":
self.t2 = value
elif register == "t3":
self.t3 = value
elif register == "t4":
self.t4 = value
elif register == "t5":
self.t5 = value
elif register == "t6":
self.t6 = value
elif register == "t7":
self.t7 = value
elif register == "t8":
self.t8 = value
elif register == "t9":
self.t9 = value
else:
raise InterpreterRegisterError(f"Invalid register name: {register}")
self.add_to_register_hotmap(register)
def get_temporary_register(self, register):
if register == "t0":
return self.t0
if register == "t1":
return self.t1
if register == "t2":
return self.t2
if register == "t3":
return self.t3
if register == "t4":
return self.t4
if register == "t5":
return self.t5
if register == "t6":
return self.t6
if register == "t7":
return self.t7
if register == "t8":
return self.t8
if register == "t9":
return self.t9
raise InterpreterRegisterError("Invalid register name")
def set_value_register(self, register, value):
if not isinstance(value, int):
raise InterpreterTypeError("Value must be an integer")
if register == "v0":
self.v0 = value
elif register == "v1":
self.v1 = value
else:
raise InterpreterRegisterError("Invalid register name")
self.add_to_register_hotmap(register)
def get_value_register(self, register):
if register == "v0":
return self.v0
if register == "v1":
return self.v1
raise InterpreterRegisterError("Invalid register name")
def set_argument_register(self, register, value):
if not isinstance(value, int):
raise InterpreterTypeError("Value must be an integer")
if register == "a0":
self.a0 = value
elif register == "a1":
self.a1 = value
elif register == "a2":
self.a2 = value
elif register == "a3":
self.a3 = value
else:
raise InterpreterRegisterError("Invalid register name")
self.add_to_register_hotmap(register)
def get_argument_register(self, register):
if register == "a0":
return self.a0
if register == "a1":
return self.a1
if register == "a2":
return self.a2
if register == "a3":
return self.a3
raise InterpreterRegisterError("Invalid register name")
def set_saved_register(self, register, value):
if not isinstance(value, int):
raise InterpreterTypeError("Value must be an integer")
if register == "s0":
self.s0 = value
elif register == "s1":
self.s1 = value
elif register == "s2":
self.s2 = value
elif register == "s3":
self.s3 = value
elif register == "s4":
self.s4 = value
elif register == "s5":
self.s5 = value
elif register == "s6":
self.s6 = value
elif register == "s7":
self.s7 = value
else:
raise InterpreterRegisterError("Invalid register name")
self.add_to_register_hotmap(register)
def get_saved_register(self, register):
if register == "s0":
return self.s0
if register == "s1":
return self.s1
if register == "s2":
return self.s2
if register == "s3":
return self.s3
if register == "s4":
return self.s4
if register == "s5":
return self.s5
if register == "s6":
return self.s6
if register == "s7":
return self.s7
raise InterpreterRegisterError("Invalid register name")
def set_stack_pointer(self, value):
self.sp = value
self.add_to_register_hotmap("sp")
def get_stack_pointer(self):
return self.sp
def set_return_address(self, value):
self.ra = value
self.add_to_register_hotmap("ra")
def get_return_address(self):
return self.ra
def set_hi_register(self, value):
self.hi = value
self.add_to_register_hotmap("hi")
def get_hi_register(self):
return self.hi
def set_lo_register(self, value):
self.lo = value
self.add_to_register_hotmap("lo")
def get_lo_register(self):
return self.lo
def set_floating_point_register(self, register, value):
if not isinstance(value, float):
raise InterpreterTypeError("Value must be a float")
if register == "f0":
self.f0 = value
elif register == "f1":
self.f1 = value
elif register == "f2":
self.f2 = value
elif register == "f3":
self.f3 = value
elif register == "f4":
self.f4 = value
elif register == "f5":
self.f5 = value
elif register == "f6":
self.f6 = value
elif register == "f7":
self.f7 = value
elif register == "f8":
self.f8 = value
elif register == "f9":
self.f9 = value
elif register == "f10":
self.f10 = value
elif register == "f11":
self.f11 = value
elif register == "f12":
self.f12 = value
elif register == "f13":
self.f13 = value
elif register == "f14":
self.f14 = value
elif register == "f15":
self.f15 = value
elif register == "f16":
self.f16 = value
elif register == "f17":
self.f17 = value
elif register == "f18":
self.f18 = value
elif register == "f19":
self.f19 = value
elif register == "f20":
self.f20 = value
elif register == "f21":
self.f21 = value
elif register == "f22":
self.f22 = value
elif register == "f23":
self.f23 = value
elif register == "f24":
self.f24 = value
elif register == "f25":
self.f25 = value
elif register == "f26":
self.f26 = value
elif register == "f27":
self.f27 = value
elif register == "f28":
self.f28 = value
elif register == "f29":
self.f29 = value
elif register == "f30":
self.f30 = value
elif register == "f31":
self.f31 = value
else:
raise InterpreterRegisterError("Invalid register name")
self.add_to_register_hotmap(register)
def get_floating_point_register(self, register):
if register == "f0":
return self.f0
if register == "f1":
return self.f1
if register == "f2":
return self.f2
if register == "f3":
return self.f3
if register == "f4":
return self.f4
if register == "f5":
return self.f5
if register == "f6":
return self.f6
if register == "f7":
return self.f7
if register == "f8":
return self.f8
if register == "f9":
return self.f9
if register == "f10":
return self.f10
if register == "f11":
return self.f11
if register == "f12":
return self.f12
if register == "f13":
return self.f13
if register == "f14":
return self.f14
if register == "f15":
return self.f15
if register == "f16":
return self.f16
if register == "f17":
return self.f17
if register == "f18":
return self.f18
if register == "f19":
return self.f19
if register == "f20":
return self.f20
if register == "f21":
return self.f21
if register == "f22":
return self.f22
if register == "f23":
return self.f23
if register == "f24":
return self.f24
if register == "f25":
return self.f25
if register == "f26":
return self.f26
if register == "f27":
return self.f27
if register == "f28":
return self.f28
if register == "f29":
return self.f29
if register == "f30":
return self.f30
if register == "f31":
return self.f31
raise InterpreterRegisterError("Invalid register name")