mbed TLS v2.16.3
include
mbedtls
bn_mul.h
Go to the documentation of this file.
1
6
/*
7
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
8
* SPDX-License-Identifier: Apache-2.0
9
*
10
* Licensed under the Apache License, Version 2.0 (the "License"); you may
11
* not use this file except in compliance with the License.
12
* You may obtain a copy of the License at
13
*
14
* http://www.apache.org/licenses/LICENSE-2.0
15
*
16
* Unless required by applicable law or agreed to in writing, software
17
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19
* See the License for the specific language governing permissions and
20
* limitations under the License.
21
*
22
* This file is part of mbed TLS (https://tls.mbed.org)
23
*/
24
/*
25
* Multiply source vector [s] with b, add result
26
* to destination vector [d] and set carry c.
27
*
28
* Currently supports:
29
*
30
* . IA-32 (386+) . AMD64 / EM64T
31
* . IA-32 (SSE2) . Motorola 68000
32
* . PowerPC, 32-bit . MicroBlaze
33
* . PowerPC, 64-bit . TriCore
34
* . SPARC v8 . ARM v3+
35
* . Alpha . MIPS32
36
* . C, longlong . C, generic
37
*/
38
#ifndef MBEDTLS_BN_MUL_H
39
#define MBEDTLS_BN_MUL_H
40
41
#if !defined(MBEDTLS_CONFIG_FILE)
42
#include "
config.h
"
43
#else
44
#include MBEDTLS_CONFIG_FILE
45
#endif
46
47
#include "
bignum.h
"
48
49
#if defined(MBEDTLS_HAVE_ASM)
50
51
#ifndef asm
52
#define asm __asm
53
#endif
54
55
/* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
56
#if defined(__GNUC__) && \
57
( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
58
59
/*
60
* Disable use of the i386 assembly code below if option -O0, to disable all
61
* compiler optimisations, is passed, detected with __OPTIMIZE__
62
* This is done as the number of registers used in the assembly code doesn't
63
* work with the -O0 option.
64
*/
65
#if defined(__i386__) && defined(__OPTIMIZE__)
66
67
#define MULADDC_INIT \
68
asm( \
69
"movl %%ebx, %0 \n\t" \
70
"movl %5, %%esi \n\t" \
71
"movl %6, %%edi \n\t" \
72
"movl %7, %%ecx \n\t" \
73
"movl %8, %%ebx \n\t"
74
75
#define MULADDC_CORE \
76
"lodsl \n\t" \
77
"mull %%ebx \n\t" \
78
"addl %%ecx, %%eax \n\t" \
79
"adcl $0, %%edx \n\t" \
80
"addl (%%edi), %%eax \n\t" \
81
"adcl $0, %%edx \n\t" \
82
"movl %%edx, %%ecx \n\t" \
83
"stosl \n\t"
84
85
#if defined(MBEDTLS_HAVE_SSE2)
86
87
#define MULADDC_HUIT \
88
"movd %%ecx, %%mm1 \n\t" \
89
"movd %%ebx, %%mm0 \n\t" \
90
"movd (%%edi), %%mm3 \n\t" \
91
"paddq %%mm3, %%mm1 \n\t" \
92
"movd (%%esi), %%mm2 \n\t" \
93
"pmuludq %%mm0, %%mm2 \n\t" \
94
"movd 4(%%esi), %%mm4 \n\t" \
95
"pmuludq %%mm0, %%mm4 \n\t" \
96
"movd 8(%%esi), %%mm6 \n\t" \
97
"pmuludq %%mm0, %%mm6 \n\t" \
98
"movd 12(%%esi), %%mm7 \n\t" \
99
"pmuludq %%mm0, %%mm7 \n\t" \
100
"paddq %%mm2, %%mm1 \n\t" \
101
"movd 4(%%edi), %%mm3 \n\t" \
102
"paddq %%mm4, %%mm3 \n\t" \
103
"movd 8(%%edi), %%mm5 \n\t" \
104
"paddq %%mm6, %%mm5 \n\t" \
105
"movd 12(%%edi), %%mm4 \n\t" \
106
"paddq %%mm4, %%mm7 \n\t" \
107
"movd %%mm1, (%%edi) \n\t" \
108
"movd 16(%%esi), %%mm2 \n\t" \
109
"pmuludq %%mm0, %%mm2 \n\t" \
110
"psrlq $32, %%mm1 \n\t" \
111
"movd 20(%%esi), %%mm4 \n\t" \
112
"pmuludq %%mm0, %%mm4 \n\t" \
113
"paddq %%mm3, %%mm1 \n\t" \
114
"movd 24(%%esi), %%mm6 \n\t" \
115
"pmuludq %%mm0, %%mm6 \n\t" \
116
"movd %%mm1, 4(%%edi) \n\t" \
117
"psrlq $32, %%mm1 \n\t" \
118
"movd 28(%%esi), %%mm3 \n\t" \
119
"pmuludq %%mm0, %%mm3 \n\t" \
120
"paddq %%mm5, %%mm1 \n\t" \
121
"movd 16(%%edi), %%mm5 \n\t" \
122
"paddq %%mm5, %%mm2 \n\t" \
123
"movd %%mm1, 8(%%edi) \n\t" \
124
"psrlq $32, %%mm1 \n\t" \
125
"paddq %%mm7, %%mm1 \n\t" \
126
"movd 20(%%edi), %%mm5 \n\t" \
127
"paddq %%mm5, %%mm4 \n\t" \
128
"movd %%mm1, 12(%%edi) \n\t" \
129
"psrlq $32, %%mm1 \n\t" \
130
"paddq %%mm2, %%mm1 \n\t" \
131
"movd 24(%%edi), %%mm5 \n\t" \
132
"paddq %%mm5, %%mm6 \n\t" \
133
"movd %%mm1, 16(%%edi) \n\t" \
134
"psrlq $32, %%mm1 \n\t" \
135
"paddq %%mm4, %%mm1 \n\t" \
136
"movd 28(%%edi), %%mm5 \n\t" \
137
"paddq %%mm5, %%mm3 \n\t" \
138
"movd %%mm1, 20(%%edi) \n\t" \
139
"psrlq $32, %%mm1 \n\t" \
140
"paddq %%mm6, %%mm1 \n\t" \
141
"movd %%mm1, 24(%%edi) \n\t" \
142
"psrlq $32, %%mm1 \n\t" \
143
"paddq %%mm3, %%mm1 \n\t" \
144
"movd %%mm1, 28(%%edi) \n\t" \
145
"addl $32, %%edi \n\t" \
146
"addl $32, %%esi \n\t" \
147
"psrlq $32, %%mm1 \n\t" \
148
"movd %%mm1, %%ecx \n\t"
149
150
#define MULADDC_STOP \
151
"emms \n\t" \
152
"movl %4, %%ebx \n\t" \
153
"movl %%ecx, %1 \n\t" \
154
"movl %%edi, %2 \n\t" \
155
"movl %%esi, %3 \n\t" \
156
: "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
157
: "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
158
: "eax", "ebx", "ecx", "edx", "esi", "edi" \
159
);
160
161
#else
162
163
#define MULADDC_STOP \
164
"movl %4, %%ebx \n\t" \
165
"movl %%ecx, %1 \n\t" \
166
"movl %%edi, %2 \n\t" \
167
"movl %%esi, %3 \n\t" \
168
: "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
169
: "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
170
: "eax", "ebx", "ecx", "edx", "esi", "edi" \
171
);
172
#endif
/* SSE2 */
173
#endif
/* i386 */
174
175
#if defined(__amd64__) || defined (__x86_64__)
176
177
#define MULADDC_INIT \
178
asm( \
179
"xorq %%r8, %%r8\n"
180
181
#define MULADDC_CORE \
182
"movq (%%rsi), %%rax\n" \
183
"mulq %%rbx\n" \
184
"addq $8, %%rsi\n" \
185
"addq %%rcx, %%rax\n" \
186
"movq %%r8, %%rcx\n" \
187
"adcq $0, %%rdx\n" \
188
"nop \n" \
189
"addq %%rax, (%%rdi)\n" \
190
"adcq %%rdx, %%rcx\n" \
191
"addq $8, %%rdi\n"
192
193
#define MULADDC_STOP \
194
: "+c" (c), "+D" (d), "+S" (s) \
195
: "b" (b) \
196
: "rax", "rdx", "r8" \
197
);
198
199
#endif
/* AMD64 */
200
201
#if defined(__mc68020__) || defined(__mcpu32__)
202
203
#define MULADDC_INIT \
204
asm( \
205
"movl %3, %%a2 \n\t" \
206
"movl %4, %%a3 \n\t" \
207
"movl %5, %%d3 \n\t" \
208
"movl %6, %%d2 \n\t" \
209
"moveq #0, %%d0 \n\t"
210
211
#define MULADDC_CORE \
212
"movel %%a2@+, %%d1 \n\t" \
213
"mulul %%d2, %%d4:%%d1 \n\t" \
214
"addl %%d3, %%d1 \n\t" \
215
"addxl %%d0, %%d4 \n\t" \
216
"moveq #0, %%d3 \n\t" \
217
"addl %%d1, %%a3@+ \n\t" \
218
"addxl %%d4, %%d3 \n\t"
219
220
#define MULADDC_STOP \
221
"movl %%d3, %0 \n\t" \
222
"movl %%a3, %1 \n\t" \
223
"movl %%a2, %2 \n\t" \
224
: "=m" (c), "=m" (d), "=m" (s) \
225
: "m" (s), "m" (d), "m" (c), "m" (b) \
226
: "d0", "d1", "d2", "d3", "d4", "a2", "a3" \
227
);
228
229
#define MULADDC_HUIT \
230
"movel %%a2@+, %%d1 \n\t" \
231
"mulul %%d2, %%d4:%%d1 \n\t" \
232
"addxl %%d3, %%d1 \n\t" \
233
"addxl %%d0, %%d4 \n\t" \
234
"addl %%d1, %%a3@+ \n\t" \
235
"movel %%a2@+, %%d1 \n\t" \
236
"mulul %%d2, %%d3:%%d1 \n\t" \
237
"addxl %%d4, %%d1 \n\t" \
238
"addxl %%d0, %%d3 \n\t" \
239
"addl %%d1, %%a3@+ \n\t" \
240
"movel %%a2@+, %%d1 \n\t" \
241
"mulul %%d2, %%d4:%%d1 \n\t" \
242
"addxl %%d3, %%d1 \n\t" \
243
"addxl %%d0, %%d4 \n\t" \
244
"addl %%d1, %%a3@+ \n\t" \
245
"movel %%a2@+, %%d1 \n\t" \
246
"mulul %%d2, %%d3:%%d1 \n\t" \
247
"addxl %%d4, %%d1 \n\t" \
248
"addxl %%d0, %%d3 \n\t" \
249
"addl %%d1, %%a3@+ \n\t" \
250
"movel %%a2@+, %%d1 \n\t" \
251
"mulul %%d2, %%d4:%%d1 \n\t" \
252
"addxl %%d3, %%d1 \n\t" \
253
"addxl %%d0, %%d4 \n\t" \
254
"addl %%d1, %%a3@+ \n\t" \
255
"movel %%a2@+, %%d1 \n\t" \
256
"mulul %%d2, %%d3:%%d1 \n\t" \
257
"addxl %%d4, %%d1 \n\t" \
258
"addxl %%d0, %%d3 \n\t" \
259
"addl %%d1, %%a3@+ \n\t" \
260
"movel %%a2@+, %%d1 \n\t" \
261
"mulul %%d2, %%d4:%%d1 \n\t" \
262
"addxl %%d3, %%d1 \n\t" \
263
"addxl %%d0, %%d4 \n\t" \
264
"addl %%d1, %%a3@+ \n\t" \
265
"movel %%a2@+, %%d1 \n\t" \
266
"mulul %%d2, %%d3:%%d1 \n\t" \
267
"addxl %%d4, %%d1 \n\t" \
268
"addxl %%d0, %%d3 \n\t" \
269
"addl %%d1, %%a3@+ \n\t" \
270
"addxl %%d0, %%d3 \n\t"
271
272
#endif
/* MC68000 */
273
274
#if defined(__powerpc64__) || defined(__ppc64__)
275
276
#if defined(__MACH__) && defined(__APPLE__)
277
278
#define MULADDC_INIT \
279
asm( \
280
"ld r3, %3 \n\t" \
281
"ld r4, %4 \n\t" \
282
"ld r5, %5 \n\t" \
283
"ld r6, %6 \n\t" \
284
"addi r3, r3, -8 \n\t" \
285
"addi r4, r4, -8 \n\t" \
286
"addic r5, r5, 0 \n\t"
287
288
#define MULADDC_CORE \
289
"ldu r7, 8(r3) \n\t" \
290
"mulld r8, r7, r6 \n\t" \
291
"mulhdu r9, r7, r6 \n\t" \
292
"adde r8, r8, r5 \n\t" \
293
"ld r7, 8(r4) \n\t" \
294
"addze r5, r9 \n\t" \
295
"addc r8, r8, r7 \n\t" \
296
"stdu r8, 8(r4) \n\t"
297
298
#define MULADDC_STOP \
299
"addze r5, r5 \n\t" \
300
"addi r4, r4, 8 \n\t" \
301
"addi r3, r3, 8 \n\t" \
302
"std r5, %0 \n\t" \
303
"std r4, %1 \n\t" \
304
"std r3, %2 \n\t" \
305
: "=m" (c), "=m" (d), "=m" (s) \
306
: "m" (s), "m" (d), "m" (c), "m" (b) \
307
: "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
308
);
309
310
311
#else
/* __MACH__ && __APPLE__ */
312
313
#define MULADDC_INIT \
314
asm( \
315
"ld %%r3, %3 \n\t" \
316
"ld %%r4, %4 \n\t" \
317
"ld %%r5, %5 \n\t" \
318
"ld %%r6, %6 \n\t" \
319
"addi %%r3, %%r3, -8 \n\t" \
320
"addi %%r4, %%r4, -8 \n\t" \
321
"addic %%r5, %%r5, 0 \n\t"
322
323
#define MULADDC_CORE \
324
"ldu %%r7, 8(%%r3) \n\t" \
325
"mulld %%r8, %%r7, %%r6 \n\t" \
326
"mulhdu %%r9, %%r7, %%r6 \n\t" \
327
"adde %%r8, %%r8, %%r5 \n\t" \
328
"ld %%r7, 8(%%r4) \n\t" \
329
"addze %%r5, %%r9 \n\t" \
330
"addc %%r8, %%r8, %%r7 \n\t" \
331
"stdu %%r8, 8(%%r4) \n\t"
332
333
#define MULADDC_STOP \
334
"addze %%r5, %%r5 \n\t" \
335
"addi %%r4, %%r4, 8 \n\t" \
336
"addi %%r3, %%r3, 8 \n\t" \
337
"std %%r5, %0 \n\t" \
338
"std %%r4, %1 \n\t" \
339
"std %%r3, %2 \n\t" \
340
: "=m" (c), "=m" (d), "=m" (s) \
341
: "m" (s), "m" (d), "m" (c), "m" (b) \
342
: "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
343
);
344
345
#endif
/* __MACH__ && __APPLE__ */
346
347
#elif defined(__powerpc__) || defined(__ppc__)
/* end PPC64/begin PPC32 */
348
349
#if defined(__MACH__) && defined(__APPLE__)
350
351
#define MULADDC_INIT \
352
asm( \
353
"lwz r3, %3 \n\t" \
354
"lwz r4, %4 \n\t" \
355
"lwz r5, %5 \n\t" \
356
"lwz r6, %6 \n\t" \
357
"addi r3, r3, -4 \n\t" \
358
"addi r4, r4, -4 \n\t" \
359
"addic r5, r5, 0 \n\t"
360
361
#define MULADDC_CORE \
362
"lwzu r7, 4(r3) \n\t" \
363
"mullw r8, r7, r6 \n\t" \
364
"mulhwu r9, r7, r6 \n\t" \
365
"adde r8, r8, r5 \n\t" \
366
"lwz r7, 4(r4) \n\t" \
367
"addze r5, r9 \n\t" \
368
"addc r8, r8, r7 \n\t" \
369
"stwu r8, 4(r4) \n\t"
370
371
#define MULADDC_STOP \
372
"addze r5, r5 \n\t" \
373
"addi r4, r4, 4 \n\t" \
374
"addi r3, r3, 4 \n\t" \
375
"stw r5, %0 \n\t" \
376
"stw r4, %1 \n\t" \
377
"stw r3, %2 \n\t" \
378
: "=m" (c), "=m" (d), "=m" (s) \
379
: "m" (s), "m" (d), "m" (c), "m" (b) \
380
: "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
381
);
382
383
#else
/* __MACH__ && __APPLE__ */
384
385
#define MULADDC_INIT \
386
asm( \
387
"lwz %%r3, %3 \n\t" \
388
"lwz %%r4, %4 \n\t" \
389
"lwz %%r5, %5 \n\t" \
390
"lwz %%r6, %6 \n\t" \
391
"addi %%r3, %%r3, -4 \n\t" \
392
"addi %%r4, %%r4, -4 \n\t" \
393
"addic %%r5, %%r5, 0 \n\t"
394
395
#define MULADDC_CORE \
396
"lwzu %%r7, 4(%%r3) \n\t" \
397
"mullw %%r8, %%r7, %%r6 \n\t" \
398
"mulhwu %%r9, %%r7, %%r6 \n\t" \
399
"adde %%r8, %%r8, %%r5 \n\t" \
400
"lwz %%r7, 4(%%r4) \n\t" \
401
"addze %%r5, %%r9 \n\t" \
402
"addc %%r8, %%r8, %%r7 \n\t" \
403
"stwu %%r8, 4(%%r4) \n\t"
404
405
#define MULADDC_STOP \
406
"addze %%r5, %%r5 \n\t" \
407
"addi %%r4, %%r4, 4 \n\t" \
408
"addi %%r3, %%r3, 4 \n\t" \
409
"stw %%r5, %0 \n\t" \
410
"stw %%r4, %1 \n\t" \
411
"stw %%r3, %2 \n\t" \
412
: "=m" (c), "=m" (d), "=m" (s) \
413
: "m" (s), "m" (d), "m" (c), "m" (b) \
414
: "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
415
);
416
417
#endif
/* __MACH__ && __APPLE__ */
418
419
#endif
/* PPC32 */
420
421
/*
422
* The Sparc(64) assembly is reported to be broken.
423
* Disable it for now, until we're able to fix it.
424
*/
425
#if 0 && defined(__sparc__)
426
#if defined(__sparc64__)
427
428
#define MULADDC_INIT \
429
asm( \
430
"ldx %3, %%o0 \n\t" \
431
"ldx %4, %%o1 \n\t" \
432
"ld %5, %%o2 \n\t" \
433
"ld %6, %%o3 \n\t"
434
435
#define MULADDC_CORE \
436
"ld [%%o0], %%o4 \n\t" \
437
"inc 4, %%o0 \n\t" \
438
"ld [%%o1], %%o5 \n\t" \
439
"umul %%o3, %%o4, %%o4 \n\t" \
440
"addcc %%o4, %%o2, %%o4 \n\t" \
441
"rd %%y, %%g1 \n\t" \
442
"addx %%g1, 0, %%g1 \n\t" \
443
"addcc %%o4, %%o5, %%o4 \n\t" \
444
"st %%o4, [%%o1] \n\t" \
445
"addx %%g1, 0, %%o2 \n\t" \
446
"inc 4, %%o1 \n\t"
447
448
#define MULADDC_STOP \
449
"st %%o2, %0 \n\t" \
450
"stx %%o1, %1 \n\t" \
451
"stx %%o0, %2 \n\t" \
452
: "=m" (c), "=m" (d), "=m" (s) \
453
: "m" (s), "m" (d), "m" (c), "m" (b) \
454
: "g1", "o0", "o1", "o2", "o3", "o4", \
455
"o5" \
456
);
457
458
#else
/* __sparc64__ */
459
460
#define MULADDC_INIT \
461
asm( \
462
"ld %3, %%o0 \n\t" \
463
"ld %4, %%o1 \n\t" \
464
"ld %5, %%o2 \n\t" \
465
"ld %6, %%o3 \n\t"
466
467
#define MULADDC_CORE \
468
"ld [%%o0], %%o4 \n\t" \
469
"inc 4, %%o0 \n\t" \
470
"ld [%%o1], %%o5 \n\t" \
471
"umul %%o3, %%o4, %%o4 \n\t" \
472
"addcc %%o4, %%o2, %%o4 \n\t" \
473
"rd %%y, %%g1 \n\t" \
474
"addx %%g1, 0, %%g1 \n\t" \
475
"addcc %%o4, %%o5, %%o4 \n\t" \
476
"st %%o4, [%%o1] \n\t" \
477
"addx %%g1, 0, %%o2 \n\t" \
478
"inc 4, %%o1 \n\t"
479
480
#define MULADDC_STOP \
481
"st %%o2, %0 \n\t" \
482
"st %%o1, %1 \n\t" \
483
"st %%o0, %2 \n\t" \
484
: "=m" (c), "=m" (d), "=m" (s) \
485
: "m" (s), "m" (d), "m" (c), "m" (b) \
486
: "g1", "o0", "o1", "o2", "o3", "o4", \
487
"o5" \
488
);
489
490
#endif
/* __sparc64__ */
491
#endif
/* __sparc__ */
492
493
#if defined(__microblaze__) || defined(microblaze)
494
495
#define MULADDC_INIT \
496
asm( \
497
"lwi r3, %3 \n\t" \
498
"lwi r4, %4 \n\t" \
499
"lwi r5, %5 \n\t" \
500
"lwi r6, %6 \n\t" \
501
"andi r7, r6, 0xffff \n\t" \
502
"bsrli r6, r6, 16 \n\t"
503
504
#define MULADDC_CORE \
505
"lhui r8, r3, 0 \n\t" \
506
"addi r3, r3, 2 \n\t" \
507
"lhui r9, r3, 0 \n\t" \
508
"addi r3, r3, 2 \n\t" \
509
"mul r10, r9, r6 \n\t" \
510
"mul r11, r8, r7 \n\t" \
511
"mul r12, r9, r7 \n\t" \
512
"mul r13, r8, r6 \n\t" \
513
"bsrli r8, r10, 16 \n\t" \
514
"bsrli r9, r11, 16 \n\t" \
515
"add r13, r13, r8 \n\t" \
516
"add r13, r13, r9 \n\t" \
517
"bslli r10, r10, 16 \n\t" \
518
"bslli r11, r11, 16 \n\t" \
519
"add r12, r12, r10 \n\t" \
520
"addc r13, r13, r0 \n\t" \
521
"add r12, r12, r11 \n\t" \
522
"addc r13, r13, r0 \n\t" \
523
"lwi r10, r4, 0 \n\t" \
524
"add r12, r12, r10 \n\t" \
525
"addc r13, r13, r0 \n\t" \
526
"add r12, r12, r5 \n\t" \
527
"addc r5, r13, r0 \n\t" \
528
"swi r12, r4, 0 \n\t" \
529
"addi r4, r4, 4 \n\t"
530
531
#define MULADDC_STOP \
532
"swi r5, %0 \n\t" \
533
"swi r4, %1 \n\t" \
534
"swi r3, %2 \n\t" \
535
: "=m" (c), "=m" (d), "=m" (s) \
536
: "m" (s), "m" (d), "m" (c), "m" (b) \
537
: "r3", "r4", "r5", "r6", "r7", "r8", \
538
"r9", "r10", "r11", "r12", "r13" \
539
);
540
541
#endif
/* MicroBlaze */
542
543
#if defined(__tricore__)
544
545
#define MULADDC_INIT \
546
asm( \
547
"ld.a %%a2, %3 \n\t" \
548
"ld.a %%a3, %4 \n\t" \
549
"ld.w %%d4, %5 \n\t" \
550
"ld.w %%d1, %6 \n\t" \
551
"xor %%d5, %%d5 \n\t"
552
553
#define MULADDC_CORE \
554
"ld.w %%d0, [%%a2+] \n\t" \
555
"madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \
556
"ld.w %%d0, [%%a3] \n\t" \
557
"addx %%d2, %%d2, %%d0 \n\t" \
558
"addc %%d3, %%d3, 0 \n\t" \
559
"mov %%d4, %%d3 \n\t" \
560
"st.w [%%a3+], %%d2 \n\t"
561
562
#define MULADDC_STOP \
563
"st.w %0, %%d4 \n\t" \
564
"st.a %1, %%a3 \n\t" \
565
"st.a %2, %%a2 \n\t" \
566
: "=m" (c), "=m" (d), "=m" (s) \
567
: "m" (s), "m" (d), "m" (c), "m" (b) \
568
: "d0", "d1", "e2", "d4", "a2", "a3" \
569
);
570
571
#endif
/* TriCore */
572
573
/*
574
* Note, gcc -O0 by default uses r7 for the frame pointer, so it complains about
575
* our use of r7 below, unless -fomit-frame-pointer is passed.
576
*
577
* On the other hand, -fomit-frame-pointer is implied by any -Ox options with
578
* x !=0, which we can detect using __OPTIMIZE__ (which is also defined by
579
* clang and armcc5 under the same conditions).
580
*
581
* So, only use the optimized assembly below for optimized build, which avoids
582
* the build error and is pretty reasonable anyway.
583
*/
584
#if defined(__GNUC__) && !defined(__OPTIMIZE__)
585
#define MULADDC_CANNOT_USE_R7
586
#endif
587
588
#if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7)
589
590
#if defined(__thumb__) && !defined(__thumb2__)
591
592
#define MULADDC_INIT \
593
asm( \
594
"ldr r0, %3 \n\t" \
595
"ldr r1, %4 \n\t" \
596
"ldr r2, %5 \n\t" \
597
"ldr r3, %6 \n\t" \
598
"lsr r7, r3, #16 \n\t" \
599
"mov r9, r7 \n\t" \
600
"lsl r7, r3, #16 \n\t" \
601
"lsr r7, r7, #16 \n\t" \
602
"mov r8, r7 \n\t"
603
604
#define MULADDC_CORE \
605
"ldmia r0!, {r6} \n\t" \
606
"lsr r7, r6, #16 \n\t" \
607
"lsl r6, r6, #16 \n\t" \
608
"lsr r6, r6, #16 \n\t" \
609
"mov r4, r8 \n\t" \
610
"mul r4, r6 \n\t" \
611
"mov r3, r9 \n\t" \
612
"mul r6, r3 \n\t" \
613
"mov r5, r9 \n\t" \
614
"mul r5, r7 \n\t" \
615
"mov r3, r8 \n\t" \
616
"mul r7, r3 \n\t" \
617
"lsr r3, r6, #16 \n\t" \
618
"add r5, r5, r3 \n\t" \
619
"lsr r3, r7, #16 \n\t" \
620
"add r5, r5, r3 \n\t" \
621
"add r4, r4, r2 \n\t" \
622
"mov r2, #0 \n\t" \
623
"adc r5, r2 \n\t" \
624
"lsl r3, r6, #16 \n\t" \
625
"add r4, r4, r3 \n\t" \
626
"adc r5, r2 \n\t" \
627
"lsl r3, r7, #16 \n\t" \
628
"add r4, r4, r3 \n\t" \
629
"adc r5, r2 \n\t" \
630
"ldr r3, [r1] \n\t" \
631
"add r4, r4, r3 \n\t" \
632
"adc r2, r5 \n\t" \
633
"stmia r1!, {r4} \n\t"
634
635
#define MULADDC_STOP \
636
"str r2, %0 \n\t" \
637
"str r1, %1 \n\t" \
638
"str r0, %2 \n\t" \
639
: "=m" (c), "=m" (d), "=m" (s) \
640
: "m" (s), "m" (d), "m" (c), "m" (b) \
641
: "r0", "r1", "r2", "r3", "r4", "r5", \
642
"r6", "r7", "r8", "r9", "cc" \
643
);
644
645
#elif (__ARM_ARCH >= 6) && \
646
defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1)
647
648
#define MULADDC_INIT \
649
asm(
650
651
#define MULADDC_CORE \
652
"ldr r0, [%0], #4 \n\t" \
653
"ldr r1, [%1] \n\t" \
654
"umaal r1, %2, %3, r0 \n\t" \
655
"str r1, [%1], #4 \n\t"
656
657
#define MULADDC_STOP \
658
: "=r" (s), "=r" (d), "=r" (c) \
659
: "r" (b), "0" (s), "1" (d), "2" (c) \
660
: "r0", "r1", "memory" \
661
);
662
663
#else
664
665
#define MULADDC_INIT \
666
asm( \
667
"ldr r0, %3 \n\t" \
668
"ldr r1, %4 \n\t" \
669
"ldr r2, %5 \n\t" \
670
"ldr r3, %6 \n\t"
671
672
#define MULADDC_CORE \
673
"ldr r4, [r0], #4 \n\t" \
674
"mov r5, #0 \n\t" \
675
"ldr r6, [r1] \n\t" \
676
"umlal r2, r5, r3, r4 \n\t" \
677
"adds r7, r6, r2 \n\t" \
678
"adc r2, r5, #0 \n\t" \
679
"str r7, [r1], #4 \n\t"
680
681
#define MULADDC_STOP \
682
"str r2, %0 \n\t" \
683
"str r1, %1 \n\t" \
684
"str r0, %2 \n\t" \
685
: "=m" (c), "=m" (d), "=m" (s) \
686
: "m" (s), "m" (d), "m" (c), "m" (b) \
687
: "r0", "r1", "r2", "r3", "r4", "r5", \
688
"r6", "r7", "cc" \
689
);
690
691
#endif
/* Thumb */
692
693
#endif
/* ARMv3 */
694
695
#if defined(__alpha__)
696
697
#define MULADDC_INIT \
698
asm( \
699
"ldq $1, %3 \n\t" \
700
"ldq $2, %4 \n\t" \
701
"ldq $3, %5 \n\t" \
702
"ldq $4, %6 \n\t"
703
704
#define MULADDC_CORE \
705
"ldq $6, 0($1) \n\t" \
706
"addq $1, 8, $1 \n\t" \
707
"mulq $6, $4, $7 \n\t" \
708
"umulh $6, $4, $6 \n\t" \
709
"addq $7, $3, $7 \n\t" \
710
"cmpult $7, $3, $3 \n\t" \
711
"ldq $5, 0($2) \n\t" \
712
"addq $7, $5, $7 \n\t" \
713
"cmpult $7, $5, $5 \n\t" \
714
"stq $7, 0($2) \n\t" \
715
"addq $2, 8, $2 \n\t" \
716
"addq $6, $3, $3 \n\t" \
717
"addq $5, $3, $3 \n\t"
718
719
#define MULADDC_STOP \
720
"stq $3, %0 \n\t" \
721
"stq $2, %1 \n\t" \
722
"stq $1, %2 \n\t" \
723
: "=m" (c), "=m" (d), "=m" (s) \
724
: "m" (s), "m" (d), "m" (c), "m" (b) \
725
: "$1", "$2", "$3", "$4", "$5", "$6", "$7" \
726
);
727
#endif
/* Alpha */
728
729
#if defined(__mips__) && !defined(__mips64)
730
731
#define MULADDC_INIT \
732
asm( \
733
"lw $10, %3 \n\t" \
734
"lw $11, %4 \n\t" \
735
"lw $12, %5 \n\t" \
736
"lw $13, %6 \n\t"
737
738
#define MULADDC_CORE \
739
"lw $14, 0($10) \n\t" \
740
"multu $13, $14 \n\t" \
741
"addi $10, $10, 4 \n\t" \
742
"mflo $14 \n\t" \
743
"mfhi $9 \n\t" \
744
"addu $14, $12, $14 \n\t" \
745
"lw $15, 0($11) \n\t" \
746
"sltu $12, $14, $12 \n\t" \
747
"addu $15, $14, $15 \n\t" \
748
"sltu $14, $15, $14 \n\t" \
749
"addu $12, $12, $9 \n\t" \
750
"sw $15, 0($11) \n\t" \
751
"addu $12, $12, $14 \n\t" \
752
"addi $11, $11, 4 \n\t"
753
754
#define MULADDC_STOP \
755
"sw $12, %0 \n\t" \
756
"sw $11, %1 \n\t" \
757
"sw $10, %2 \n\t" \
758
: "=m" (c), "=m" (d), "=m" (s) \
759
: "m" (s), "m" (d), "m" (c), "m" (b) \
760
: "$9", "$10", "$11", "$12", "$13", "$14", "$15", "lo", "hi" \
761
);
762
763
#endif
/* MIPS */
764
#endif
/* GNUC */
765
766
#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
767
768
#define MULADDC_INIT \
769
__asm mov esi, s \
770
__asm mov edi, d \
771
__asm mov ecx, c \
772
__asm mov ebx, b
773
774
#define MULADDC_CORE \
775
__asm lodsd \
776
__asm mul ebx \
777
__asm add eax, ecx \
778
__asm adc edx, 0 \
779
__asm add eax, [edi] \
780
__asm adc edx, 0 \
781
__asm mov ecx, edx \
782
__asm stosd
783
784
#if defined(MBEDTLS_HAVE_SSE2)
785
786
#define EMIT __asm _emit
787
788
#define MULADDC_HUIT \
789
EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
790
EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
791
EMIT 0x0F EMIT 0x6E EMIT 0x1F \
792
EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
793
EMIT 0x0F EMIT 0x6E EMIT 0x16 \
794
EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
795
EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
796
EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
797
EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
798
EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
799
EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
800
EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
801
EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
802
EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
803
EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
804
EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
805
EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
806
EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
807
EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
808
EMIT 0x0F EMIT 0x7E EMIT 0x0F \
809
EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
810
EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
811
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
812
EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
813
EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
814
EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
815
EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
816
EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
817
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
818
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
819
EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
820
EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
821
EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
822
EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
823
EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
824
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
825
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
826
EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
827
EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
828
EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
829
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
830
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
831
EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
832
EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
833
EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
834
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
835
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
836
EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
837
EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
838
EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
839
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
840
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
841
EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
842
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
843
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
844
EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
845
EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
846
EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
847
EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
848
EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
849
EMIT 0x0F EMIT 0x7E EMIT 0xC9
850
851
#define MULADDC_STOP \
852
EMIT 0x0F EMIT 0x77 \
853
__asm mov c, ecx \
854
__asm mov d, edi \
855
__asm mov s, esi \
856
857
#else
858
859
#define MULADDC_STOP \
860
__asm mov c, ecx \
861
__asm mov d, edi \
862
__asm mov s, esi \
863
864
#endif
/* SSE2 */
865
#endif
/* MSVC */
866
867
#endif
/* MBEDTLS_HAVE_ASM */
868
869
#if !defined(MULADDC_CORE)
870
#if defined(MBEDTLS_HAVE_UDBL)
871
872
#define MULADDC_INIT \
873
{ \
874
mbedtls_t_udbl r; \
875
mbedtls_mpi_uint r0, r1;
876
877
#define MULADDC_CORE \
878
r = *(s++) * (mbedtls_t_udbl) b; \
879
r0 = (mbedtls_mpi_uint) r; \
880
r1 = (mbedtls_mpi_uint)( r >> biL ); \
881
r0 += c; r1 += (r0 < c); \
882
r0 += *d; r1 += (r0 < *d); \
883
c = r1; *(d++) = r0;
884
885
#define MULADDC_STOP \
886
}
887
888
#else
889
#define MULADDC_INIT \
890
{ \
891
mbedtls_mpi_uint s0, s1, b0, b1; \
892
mbedtls_mpi_uint r0, r1, rx, ry; \
893
b0 = ( b << biH ) >> biH; \
894
b1 = ( b >> biH );
895
896
#define MULADDC_CORE \
897
s0 = ( *s << biH ) >> biH; \
898
s1 = ( *s >> biH ); s++; \
899
rx = s0 * b1; r0 = s0 * b0; \
900
ry = s1 * b0; r1 = s1 * b1; \
901
r1 += ( rx >> biH ); \
902
r1 += ( ry >> biH ); \
903
rx <<= biH; ry <<= biH; \
904
r0 += rx; r1 += (r0 < rx); \
905
r0 += ry; r1 += (r0 < ry); \
906
r0 += c; r1 += (r0 < c); \
907
r0 += *d; r1 += (r0 < *d); \
908
c = r1; *(d++) = r0;
909
910
#define MULADDC_STOP \
911
}
912
913
#endif
/* C (generic) */
914
#endif
/* C (longlong) */
915
916
#endif
/* bn_mul.h */
bignum.h
Multi-precision integer library.
config.h
Configuration options (set of defines)
Generated on Tue Jan 21 2020 12:33:50 for mbed TLS v2.16.3 by
1.8.17