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
|
TITLE ../openssl/crypto/bn/asm/x86-mont.asm
IF @Version LT 800
ECHO MASM version 8.00 or later is strongly recommended.
ENDIF
.686
.XMM
IF @Version LT 800
XMMWORD STRUCT 16
DQ 2 dup (?)
XMMWORD ENDS
ENDIF
.MODEL FLAT
OPTION DOTNAME
IF @Version LT 800
.text$ SEGMENT PAGE 'CODE'
ELSE
.text$ SEGMENT ALIGN(64) 'CODE'
ENDIF
;EXTERN _OPENSSL_ia32cap_P:NEAR
ALIGN 16
_bn_mul_mont PROC PUBLIC
$L_bn_mul_mont_begin::
push ebp
push ebx
push esi
push edi
xor eax,eax
mov edi,DWORD PTR 40[esp]
cmp edi,4
jl $L000just_leave
lea esi,DWORD PTR 20[esp]
lea edx,DWORD PTR 24[esp]
mov ebp,esp
add edi,2
neg edi
lea esp,DWORD PTR [edi*4+esp-32]
neg edi
mov eax,esp
sub eax,edx
and eax,2047
sub esp,eax
xor edx,esp
and edx,2048
xor edx,2048
sub esp,edx
and esp,-64
mov eax,ebp
sub eax,esp
and eax,-4096
$L001page_walk:
mov edx,DWORD PTR [eax*1+esp]
sub eax,4096
DB 46
jnc $L001page_walk
mov eax,DWORD PTR [esi]
mov ebx,DWORD PTR 4[esi]
mov ecx,DWORD PTR 8[esi]
mov edx,DWORD PTR 12[esi]
mov esi,DWORD PTR 16[esi]
mov esi,DWORD PTR [esi]
mov DWORD PTR 4[esp],eax
mov DWORD PTR 8[esp],ebx
mov DWORD PTR 12[esp],ecx
mov DWORD PTR 16[esp],edx
mov DWORD PTR 20[esp],esi
lea ebx,DWORD PTR [edi-3]
mov DWORD PTR 24[esp],ebp
lea eax,DWORD PTR _OPENSSL_ia32cap_P
bt DWORD PTR [eax],26
jnc $L002non_sse2
mov eax,-1
movd mm7,eax
mov esi,DWORD PTR 8[esp]
mov edi,DWORD PTR 12[esp]
mov ebp,DWORD PTR 16[esp]
xor edx,edx
xor ecx,ecx
movd mm4,DWORD PTR [edi]
movd mm5,DWORD PTR [esi]
movd mm3,DWORD PTR [ebp]
pmuludq mm5,mm4
movq mm2,mm5
movq mm0,mm5
pand mm0,mm7
pmuludq mm5,QWORD PTR 20[esp]
pmuludq mm3,mm5
paddq mm3,mm0
movd mm1,DWORD PTR 4[ebp]
movd mm0,DWORD PTR 4[esi]
psrlq mm2,32
psrlq mm3,32
inc ecx
ALIGN 16
$L0031st:
pmuludq mm0,mm4
pmuludq mm1,mm5
paddq mm2,mm0
paddq mm3,mm1
movq mm0,mm2
pand mm0,mm7
movd mm1,DWORD PTR 4[ecx*4+ebp]
paddq mm3,mm0
movd mm0,DWORD PTR 4[ecx*4+esi]
psrlq mm2,32
movd DWORD PTR 28[ecx*4+esp],mm3
psrlq mm3,32
lea ecx,DWORD PTR 1[ecx]
cmp ecx,ebx
jl $L0031st
pmuludq mm0,mm4
pmuludq mm1,mm5
paddq mm2,mm0
paddq mm3,mm1
movq mm0,mm2
pand mm0,mm7
paddq mm3,mm0
movd DWORD PTR 28[ecx*4+esp],mm3
psrlq mm2,32
psrlq mm3,32
paddq mm3,mm2
movq QWORD PTR 32[ebx*4+esp],mm3
inc edx
$L004outer:
xor ecx,ecx
movd mm4,DWORD PTR [edx*4+edi]
movd mm5,DWORD PTR [esi]
movd mm6,DWORD PTR 32[esp]
movd mm3,DWORD PTR [ebp]
pmuludq mm5,mm4
paddq mm5,mm6
movq mm0,mm5
movq mm2,mm5
pand mm0,mm7
pmuludq mm5,QWORD PTR 20[esp]
pmuludq mm3,mm5
paddq mm3,mm0
movd mm6,DWORD PTR 36[esp]
movd mm1,DWORD PTR 4[ebp]
movd mm0,DWORD PTR 4[esi]
psrlq mm2,32
psrlq mm3,32
paddq mm2,mm6
inc ecx
dec ebx
$L005inner:
pmuludq mm0,mm4
pmuludq mm1,mm5
paddq mm2,mm0
paddq mm3,mm1
movq mm0,mm2
movd mm6,DWORD PTR 36[ecx*4+esp]
pand mm0,mm7
movd mm1,DWORD PTR 4[ecx*4+ebp]
paddq mm3,mm0
movd mm0,DWORD PTR 4[ecx*4+esi]
psrlq mm2,32
movd DWORD PTR 28[ecx*4+esp],mm3
psrlq mm3,32
paddq mm2,mm6
dec ebx
lea ecx,DWORD PTR 1[ecx]
jnz $L005inner
mov ebx,ecx
pmuludq mm0,mm4
pmuludq mm1,mm5
paddq mm2,mm0
paddq mm3,mm1
movq mm0,mm2
pand mm0,mm7
paddq mm3,mm0
movd DWORD PTR 28[ecx*4+esp],mm3
psrlq mm2,32
psrlq mm3,32
movd mm6,DWORD PTR 36[ebx*4+esp]
paddq mm3,mm2
paddq mm3,mm6
movq QWORD PTR 32[ebx*4+esp],mm3
lea edx,DWORD PTR 1[edx]
cmp edx,ebx
jle $L004outer
emms
jmp $L006common_tail
ALIGN 16
$L002non_sse2:
mov esi,DWORD PTR 8[esp]
lea ebp,DWORD PTR 1[ebx]
mov edi,DWORD PTR 12[esp]
xor ecx,ecx
mov edx,esi
and ebp,1
sub edx,edi
lea eax,DWORD PTR 4[ebx*4+edi]
or ebp,edx
mov edi,DWORD PTR [edi]
jz $L007bn_sqr_mont
mov DWORD PTR 28[esp],eax
mov eax,DWORD PTR [esi]
xor edx,edx
ALIGN 16
$L008mull:
mov ebp,edx
mul edi
add ebp,eax
lea ecx,DWORD PTR 1[ecx]
adc edx,0
mov eax,DWORD PTR [ecx*4+esi]
cmp ecx,ebx
mov DWORD PTR 28[ecx*4+esp],ebp
jl $L008mull
mov ebp,edx
mul edi
mov edi,DWORD PTR 20[esp]
add eax,ebp
mov esi,DWORD PTR 16[esp]
adc edx,0
imul edi,DWORD PTR 32[esp]
mov DWORD PTR 32[ebx*4+esp],eax
xor ecx,ecx
mov DWORD PTR 36[ebx*4+esp],edx
mov DWORD PTR 40[ebx*4+esp],ecx
mov eax,DWORD PTR [esi]
mul edi
add eax,DWORD PTR 32[esp]
mov eax,DWORD PTR 4[esi]
adc edx,0
inc ecx
jmp $L0092ndmadd
ALIGN 16
$L0101stmadd:
mov ebp,edx
mul edi
add ebp,DWORD PTR 32[ecx*4+esp]
lea ecx,DWORD PTR 1[ecx]
adc edx,0
add ebp,eax
mov eax,DWORD PTR [ecx*4+esi]
adc edx,0
cmp ecx,ebx
mov DWORD PTR 28[ecx*4+esp],ebp
jl $L0101stmadd
mov ebp,edx
mul edi
add eax,DWORD PTR 32[ebx*4+esp]
mov edi,DWORD PTR 20[esp]
adc edx,0
mov esi,DWORD PTR 16[esp]
add ebp,eax
adc edx,0
imul edi,DWORD PTR 32[esp]
xor ecx,ecx
add edx,DWORD PTR 36[ebx*4+esp]
mov DWORD PTR 32[ebx*4+esp],ebp
adc ecx,0
mov eax,DWORD PTR [esi]
mov DWORD PTR 36[ebx*4+esp],edx
mov DWORD PTR 40[ebx*4+esp],ecx
mul edi
add eax,DWORD PTR 32[esp]
mov eax,DWORD PTR 4[esi]
adc edx,0
mov ecx,1
ALIGN 16
$L0092ndmadd:
mov ebp,edx
mul edi
add ebp,DWORD PTR 32[ecx*4+esp]
lea ecx,DWORD PTR 1[ecx]
adc edx,0
add ebp,eax
mov eax,DWORD PTR [ecx*4+esi]
adc edx,0
cmp ecx,ebx
mov DWORD PTR 24[ecx*4+esp],ebp
jl $L0092ndmadd
mov ebp,edx
mul edi
add ebp,DWORD PTR 32[ebx*4+esp]
adc edx,0
add ebp,eax
adc edx,0
mov DWORD PTR 28[ebx*4+esp],ebp
xor eax,eax
mov ecx,DWORD PTR 12[esp]
add edx,DWORD PTR 36[ebx*4+esp]
adc eax,DWORD PTR 40[ebx*4+esp]
lea ecx,DWORD PTR 4[ecx]
mov DWORD PTR 32[ebx*4+esp],edx
cmp ecx,DWORD PTR 28[esp]
mov DWORD PTR 36[ebx*4+esp],eax
je $L006common_tail
mov edi,DWORD PTR [ecx]
mov esi,DWORD PTR 8[esp]
mov DWORD PTR 12[esp],ecx
xor ecx,ecx
xor edx,edx
mov eax,DWORD PTR [esi]
jmp $L0101stmadd
ALIGN 16
$L007bn_sqr_mont:
mov DWORD PTR [esp],ebx
mov DWORD PTR 12[esp],ecx
mov eax,edi
mul edi
mov DWORD PTR 32[esp],eax
mov ebx,edx
shr edx,1
and ebx,1
inc ecx
ALIGN 16
$L011sqr:
mov eax,DWORD PTR [ecx*4+esi]
mov ebp,edx
mul edi
add eax,ebp
lea ecx,DWORD PTR 1[ecx]
adc edx,0
lea ebp,DWORD PTR [eax*2+ebx]
shr eax,31
cmp ecx,DWORD PTR [esp]
mov ebx,eax
mov DWORD PTR 28[ecx*4+esp],ebp
jl $L011sqr
mov eax,DWORD PTR [ecx*4+esi]
mov ebp,edx
mul edi
add eax,ebp
mov edi,DWORD PTR 20[esp]
adc edx,0
mov esi,DWORD PTR 16[esp]
lea ebp,DWORD PTR [eax*2+ebx]
imul edi,DWORD PTR 32[esp]
shr eax,31
mov DWORD PTR 32[ecx*4+esp],ebp
lea ebp,DWORD PTR [edx*2+eax]
mov eax,DWORD PTR [esi]
shr edx,31
mov DWORD PTR 36[ecx*4+esp],ebp
mov DWORD PTR 40[ecx*4+esp],edx
mul edi
add eax,DWORD PTR 32[esp]
mov ebx,ecx
adc edx,0
mov eax,DWORD PTR 4[esi]
mov ecx,1
ALIGN 16
$L0123rdmadd:
mov ebp,edx
mul edi
add ebp,DWORD PTR 32[ecx*4+esp]
adc edx,0
add ebp,eax
mov eax,DWORD PTR 4[ecx*4+esi]
adc edx,0
mov DWORD PTR 28[ecx*4+esp],ebp
mov ebp,edx
mul edi
add ebp,DWORD PTR 36[ecx*4+esp]
lea ecx,DWORD PTR 2[ecx]
adc edx,0
add ebp,eax
mov eax,DWORD PTR [ecx*4+esi]
adc edx,0
cmp ecx,ebx
mov DWORD PTR 24[ecx*4+esp],ebp
jl $L0123rdmadd
mov ebp,edx
mul edi
add ebp,DWORD PTR 32[ebx*4+esp]
adc edx,0
add ebp,eax
adc edx,0
mov DWORD PTR 28[ebx*4+esp],ebp
mov ecx,DWORD PTR 12[esp]
xor eax,eax
mov esi,DWORD PTR 8[esp]
add edx,DWORD PTR 36[ebx*4+esp]
adc eax,DWORD PTR 40[ebx*4+esp]
mov DWORD PTR 32[ebx*4+esp],edx
cmp ecx,ebx
mov DWORD PTR 36[ebx*4+esp],eax
je $L006common_tail
mov edi,DWORD PTR 4[ecx*4+esi]
lea ecx,DWORD PTR 1[ecx]
mov eax,edi
mov DWORD PTR 12[esp],ecx
mul edi
add eax,DWORD PTR 32[ecx*4+esp]
adc edx,0
mov DWORD PTR 32[ecx*4+esp],eax
xor ebp,ebp
cmp ecx,ebx
lea ecx,DWORD PTR 1[ecx]
je $L013sqrlast
mov ebx,edx
shr edx,1
and ebx,1
ALIGN 16
$L014sqradd:
mov eax,DWORD PTR [ecx*4+esi]
mov ebp,edx
mul edi
add eax,ebp
lea ebp,DWORD PTR [eax*1+eax]
adc edx,0
shr eax,31
add ebp,DWORD PTR 32[ecx*4+esp]
lea ecx,DWORD PTR 1[ecx]
adc eax,0
add ebp,ebx
adc eax,0
cmp ecx,DWORD PTR [esp]
mov DWORD PTR 28[ecx*4+esp],ebp
mov ebx,eax
jle $L014sqradd
mov ebp,edx
add edx,edx
shr ebp,31
add edx,ebx
adc ebp,0
$L013sqrlast:
mov edi,DWORD PTR 20[esp]
mov esi,DWORD PTR 16[esp]
imul edi,DWORD PTR 32[esp]
add edx,DWORD PTR 32[ecx*4+esp]
mov eax,DWORD PTR [esi]
adc ebp,0
mov DWORD PTR 32[ecx*4+esp],edx
mov DWORD PTR 36[ecx*4+esp],ebp
mul edi
add eax,DWORD PTR 32[esp]
lea ebx,DWORD PTR [ecx-1]
adc edx,0
mov ecx,1
mov eax,DWORD PTR 4[esi]
jmp $L0123rdmadd
ALIGN 16
$L006common_tail:
mov ebp,DWORD PTR 16[esp]
mov edi,DWORD PTR 4[esp]
lea esi,DWORD PTR 32[esp]
mov eax,DWORD PTR [esi]
mov ecx,ebx
xor edx,edx
ALIGN 16
$L015sub:
sbb eax,DWORD PTR [edx*4+ebp]
mov DWORD PTR [edx*4+edi],eax
dec ecx
mov eax,DWORD PTR 4[edx*4+esi]
lea edx,DWORD PTR 1[edx]
jge $L015sub
sbb eax,0
and esi,eax
not eax
mov ebp,edi
and ebp,eax
or esi,ebp
ALIGN 16
$L016copy:
mov eax,DWORD PTR [ebx*4+esi]
mov DWORD PTR [ebx*4+edi],eax
mov DWORD PTR 32[ebx*4+esp],ecx
dec ebx
jge $L016copy
mov esp,DWORD PTR 24[esp]
mov eax,1
$L000just_leave:
pop edi
pop esi
pop ebx
pop ebp
ret
_bn_mul_mont ENDP
DB 77,111,110,116,103,111,109,101,114,121,32,77,117,108,116,105
DB 112,108,105,99,97,116,105,111,110,32,102,111,114,32,120,56
DB 54,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121
DB 32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46
DB 111,114,103,62,0
.text$ ENDS
.bss SEGMENT 'BSS'
COMM _OPENSSL_ia32cap_P:DWORD:4
.bss ENDS
END
|
