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[MBEDTLS] Update to v2.3.0. CORE-11534
[reactos.git] / reactos / sdk / include / reactos / libs / mbedtls / bn_mul.h
1 /**
2 * \file bn_mul.h
3 *
4 * \brief Multi-precision integer library
5 *
6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
7 * SPDX-License-Identifier: Apache-2.0
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
10 * not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 *
21 * This file is part of mbed TLS (https://tls.mbed.org)
22 */
23 /*
24 * Multiply source vector [s] with b, add result
25 * to destination vector [d] and set carry c.
26 *
27 * Currently supports:
28 *
29 * . IA-32 (386+) . AMD64 / EM64T
30 * . IA-32 (SSE2) . Motorola 68000
31 * . PowerPC, 32-bit . MicroBlaze
32 * . PowerPC, 64-bit . TriCore
33 * . SPARC v8 . ARM v3+
34 * . Alpha . MIPS32
35 * . C, longlong . C, generic
36 */
37 #ifndef MBEDTLS_BN_MUL_H
38 #define MBEDTLS_BN_MUL_H
39
40 #include "bignum.h"
41
42 #if defined(MBEDTLS_HAVE_ASM)
43
44 #ifndef asm
45 #define asm __asm
46 #endif
47
48 /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
49 #if defined(__GNUC__) && \
50 ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
51 #if defined(__i386__)
52
53 #define MULADDC_INIT \
54 asm( \
55 "movl %%ebx, %0 \n\t" \
56 "movl %5, %%esi \n\t" \
57 "movl %6, %%edi \n\t" \
58 "movl %7, %%ecx \n\t" \
59 "movl %8, %%ebx \n\t"
60
61 #define MULADDC_CORE \
62 "lodsl \n\t" \
63 "mull %%ebx \n\t" \
64 "addl %%ecx, %%eax \n\t" \
65 "adcl $0, %%edx \n\t" \
66 "addl (%%edi), %%eax \n\t" \
67 "adcl $0, %%edx \n\t" \
68 "movl %%edx, %%ecx \n\t" \
69 "stosl \n\t"
70
71 #if defined(MBEDTLS_HAVE_SSE2)
72
73 #define MULADDC_HUIT \
74 "movd %%ecx, %%mm1 \n\t" \
75 "movd %%ebx, %%mm0 \n\t" \
76 "movd (%%edi), %%mm3 \n\t" \
77 "paddq %%mm3, %%mm1 \n\t" \
78 "movd (%%esi), %%mm2 \n\t" \
79 "pmuludq %%mm0, %%mm2 \n\t" \
80 "movd 4(%%esi), %%mm4 \n\t" \
81 "pmuludq %%mm0, %%mm4 \n\t" \
82 "movd 8(%%esi), %%mm6 \n\t" \
83 "pmuludq %%mm0, %%mm6 \n\t" \
84 "movd 12(%%esi), %%mm7 \n\t" \
85 "pmuludq %%mm0, %%mm7 \n\t" \
86 "paddq %%mm2, %%mm1 \n\t" \
87 "movd 4(%%edi), %%mm3 \n\t" \
88 "paddq %%mm4, %%mm3 \n\t" \
89 "movd 8(%%edi), %%mm5 \n\t" \
90 "paddq %%mm6, %%mm5 \n\t" \
91 "movd 12(%%edi), %%mm4 \n\t" \
92 "paddq %%mm4, %%mm7 \n\t" \
93 "movd %%mm1, (%%edi) \n\t" \
94 "movd 16(%%esi), %%mm2 \n\t" \
95 "pmuludq %%mm0, %%mm2 \n\t" \
96 "psrlq $32, %%mm1 \n\t" \
97 "movd 20(%%esi), %%mm4 \n\t" \
98 "pmuludq %%mm0, %%mm4 \n\t" \
99 "paddq %%mm3, %%mm1 \n\t" \
100 "movd 24(%%esi), %%mm6 \n\t" \
101 "pmuludq %%mm0, %%mm6 \n\t" \
102 "movd %%mm1, 4(%%edi) \n\t" \
103 "psrlq $32, %%mm1 \n\t" \
104 "movd 28(%%esi), %%mm3 \n\t" \
105 "pmuludq %%mm0, %%mm3 \n\t" \
106 "paddq %%mm5, %%mm1 \n\t" \
107 "movd 16(%%edi), %%mm5 \n\t" \
108 "paddq %%mm5, %%mm2 \n\t" \
109 "movd %%mm1, 8(%%edi) \n\t" \
110 "psrlq $32, %%mm1 \n\t" \
111 "paddq %%mm7, %%mm1 \n\t" \
112 "movd 20(%%edi), %%mm5 \n\t" \
113 "paddq %%mm5, %%mm4 \n\t" \
114 "movd %%mm1, 12(%%edi) \n\t" \
115 "psrlq $32, %%mm1 \n\t" \
116 "paddq %%mm2, %%mm1 \n\t" \
117 "movd 24(%%edi), %%mm5 \n\t" \
118 "paddq %%mm5, %%mm6 \n\t" \
119 "movd %%mm1, 16(%%edi) \n\t" \
120 "psrlq $32, %%mm1 \n\t" \
121 "paddq %%mm4, %%mm1 \n\t" \
122 "movd 28(%%edi), %%mm5 \n\t" \
123 "paddq %%mm5, %%mm3 \n\t" \
124 "movd %%mm1, 20(%%edi) \n\t" \
125 "psrlq $32, %%mm1 \n\t" \
126 "paddq %%mm6, %%mm1 \n\t" \
127 "movd %%mm1, 24(%%edi) \n\t" \
128 "psrlq $32, %%mm1 \n\t" \
129 "paddq %%mm3, %%mm1 \n\t" \
130 "movd %%mm1, 28(%%edi) \n\t" \
131 "addl $32, %%edi \n\t" \
132 "addl $32, %%esi \n\t" \
133 "psrlq $32, %%mm1 \n\t" \
134 "movd %%mm1, %%ecx \n\t"
135
136 #define MULADDC_STOP \
137 "emms \n\t" \
138 "movl %4, %%ebx \n\t" \
139 "movl %%ecx, %1 \n\t" \
140 "movl %%edi, %2 \n\t" \
141 "movl %%esi, %3 \n\t" \
142 : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
143 : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
144 : "eax", "ecx", "edx", "esi", "edi" \
145 );
146
147 #else
148
149 #define MULADDC_STOP \
150 "movl %4, %%ebx \n\t" \
151 "movl %%ecx, %1 \n\t" \
152 "movl %%edi, %2 \n\t" \
153 "movl %%esi, %3 \n\t" \
154 : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
155 : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
156 : "eax", "ecx", "edx", "esi", "edi" \
157 );
158 #endif /* SSE2 */
159 #endif /* i386 */
160
161 #if defined(__amd64__) || defined (__x86_64__)
162
163 #define MULADDC_INIT \
164 asm( \
165 "xorq %%r8, %%r8 \n\t"
166
167 #define MULADDC_CORE \
168 "movq (%%rsi), %%rax \n\t" \
169 "mulq %%rbx \n\t" \
170 "addq $8, %%rsi \n\t" \
171 "addq %%rcx, %%rax \n\t" \
172 "movq %%r8, %%rcx \n\t" \
173 "adcq $0, %%rdx \n\t" \
174 "nop \n\t" \
175 "addq %%rax, (%%rdi) \n\t" \
176 "adcq %%rdx, %%rcx \n\t" \
177 "addq $8, %%rdi \n\t"
178
179 #define MULADDC_STOP \
180 : "+c" (c), "+D" (d), "+S" (s) \
181 : "b" (b) \
182 : "rax", "rdx", "r8" \
183 );
184
185 #endif /* AMD64 */
186
187 #if defined(__mc68020__) || defined(__mcpu32__)
188
189 #define MULADDC_INIT \
190 asm( \
191 "movl %3, %%a2 \n\t" \
192 "movl %4, %%a3 \n\t" \
193 "movl %5, %%d3 \n\t" \
194 "movl %6, %%d2 \n\t" \
195 "moveq #0, %%d0 \n\t"
196
197 #define MULADDC_CORE \
198 "movel %%a2@+, %%d1 \n\t" \
199 "mulul %%d2, %%d4:%%d1 \n\t" \
200 "addl %%d3, %%d1 \n\t" \
201 "addxl %%d0, %%d4 \n\t" \
202 "moveq #0, %%d3 \n\t" \
203 "addl %%d1, %%a3@+ \n\t" \
204 "addxl %%d4, %%d3 \n\t"
205
206 #define MULADDC_STOP \
207 "movl %%d3, %0 \n\t" \
208 "movl %%a3, %1 \n\t" \
209 "movl %%a2, %2 \n\t" \
210 : "=m" (c), "=m" (d), "=m" (s) \
211 : "m" (s), "m" (d), "m" (c), "m" (b) \
212 : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \
213 );
214
215 #define MULADDC_HUIT \
216 "movel %%a2@+, %%d1 \n\t" \
217 "mulul %%d2, %%d4:%%d1 \n\t" \
218 "addxl %%d3, %%d1 \n\t" \
219 "addxl %%d0, %%d4 \n\t" \
220 "addl %%d1, %%a3@+ \n\t" \
221 "movel %%a2@+, %%d1 \n\t" \
222 "mulul %%d2, %%d3:%%d1 \n\t" \
223 "addxl %%d4, %%d1 \n\t" \
224 "addxl %%d0, %%d3 \n\t" \
225 "addl %%d1, %%a3@+ \n\t" \
226 "movel %%a2@+, %%d1 \n\t" \
227 "mulul %%d2, %%d4:%%d1 \n\t" \
228 "addxl %%d3, %%d1 \n\t" \
229 "addxl %%d0, %%d4 \n\t" \
230 "addl %%d1, %%a3@+ \n\t" \
231 "movel %%a2@+, %%d1 \n\t" \
232 "mulul %%d2, %%d3:%%d1 \n\t" \
233 "addxl %%d4, %%d1 \n\t" \
234 "addxl %%d0, %%d3 \n\t" \
235 "addl %%d1, %%a3@+ \n\t" \
236 "movel %%a2@+, %%d1 \n\t" \
237 "mulul %%d2, %%d4:%%d1 \n\t" \
238 "addxl %%d3, %%d1 \n\t" \
239 "addxl %%d0, %%d4 \n\t" \
240 "addl %%d1, %%a3@+ \n\t" \
241 "movel %%a2@+, %%d1 \n\t" \
242 "mulul %%d2, %%d3:%%d1 \n\t" \
243 "addxl %%d4, %%d1 \n\t" \
244 "addxl %%d0, %%d3 \n\t" \
245 "addl %%d1, %%a3@+ \n\t" \
246 "movel %%a2@+, %%d1 \n\t" \
247 "mulul %%d2, %%d4:%%d1 \n\t" \
248 "addxl %%d3, %%d1 \n\t" \
249 "addxl %%d0, %%d4 \n\t" \
250 "addl %%d1, %%a3@+ \n\t" \
251 "movel %%a2@+, %%d1 \n\t" \
252 "mulul %%d2, %%d3:%%d1 \n\t" \
253 "addxl %%d4, %%d1 \n\t" \
254 "addxl %%d0, %%d3 \n\t" \
255 "addl %%d1, %%a3@+ \n\t" \
256 "addxl %%d0, %%d3 \n\t"
257
258 #endif /* MC68000 */
259
260 #if defined(__powerpc64__) || defined(__ppc64__)
261
262 #if defined(__MACH__) && defined(__APPLE__)
263
264 #define MULADDC_INIT \
265 asm( \
266 "ld r3, %3 \n\t" \
267 "ld r4, %4 \n\t" \
268 "ld r5, %5 \n\t" \
269 "ld r6, %6 \n\t" \
270 "addi r3, r3, -8 \n\t" \
271 "addi r4, r4, -8 \n\t" \
272 "addic r5, r5, 0 \n\t"
273
274 #define MULADDC_CORE \
275 "ldu r7, 8(r3) \n\t" \
276 "mulld r8, r7, r6 \n\t" \
277 "mulhdu r9, r7, r6 \n\t" \
278 "adde r8, r8, r5 \n\t" \
279 "ld r7, 8(r4) \n\t" \
280 "addze r5, r9 \n\t" \
281 "addc r8, r8, r7 \n\t" \
282 "stdu r8, 8(r4) \n\t"
283
284 #define MULADDC_STOP \
285 "addze r5, r5 \n\t" \
286 "addi r4, r4, 8 \n\t" \
287 "addi r3, r3, 8 \n\t" \
288 "std r5, %0 \n\t" \
289 "std r4, %1 \n\t" \
290 "std r3, %2 \n\t" \
291 : "=m" (c), "=m" (d), "=m" (s) \
292 : "m" (s), "m" (d), "m" (c), "m" (b) \
293 : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
294 );
295
296
297 #else /* __MACH__ && __APPLE__ */
298
299 #define MULADDC_INIT \
300 asm( \
301 "ld %%r3, %3 \n\t" \
302 "ld %%r4, %4 \n\t" \
303 "ld %%r5, %5 \n\t" \
304 "ld %%r6, %6 \n\t" \
305 "addi %%r3, %%r3, -8 \n\t" \
306 "addi %%r4, %%r4, -8 \n\t" \
307 "addic %%r5, %%r5, 0 \n\t"
308
309 #define MULADDC_CORE \
310 "ldu %%r7, 8(%%r3) \n\t" \
311 "mulld %%r8, %%r7, %%r6 \n\t" \
312 "mulhdu %%r9, %%r7, %%r6 \n\t" \
313 "adde %%r8, %%r8, %%r5 \n\t" \
314 "ld %%r7, 8(%%r4) \n\t" \
315 "addze %%r5, %%r9 \n\t" \
316 "addc %%r8, %%r8, %%r7 \n\t" \
317 "stdu %%r8, 8(%%r4) \n\t"
318
319 #define MULADDC_STOP \
320 "addze %%r5, %%r5 \n\t" \
321 "addi %%r4, %%r4, 8 \n\t" \
322 "addi %%r3, %%r3, 8 \n\t" \
323 "std %%r5, %0 \n\t" \
324 "std %%r4, %1 \n\t" \
325 "std %%r3, %2 \n\t" \
326 : "=m" (c), "=m" (d), "=m" (s) \
327 : "m" (s), "m" (d), "m" (c), "m" (b) \
328 : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
329 );
330
331 #endif /* __MACH__ && __APPLE__ */
332
333 #elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */
334
335 #if defined(__MACH__) && defined(__APPLE__)
336
337 #define MULADDC_INIT \
338 asm( \
339 "lwz r3, %3 \n\t" \
340 "lwz r4, %4 \n\t" \
341 "lwz r5, %5 \n\t" \
342 "lwz r6, %6 \n\t" \
343 "addi r3, r3, -4 \n\t" \
344 "addi r4, r4, -4 \n\t" \
345 "addic r5, r5, 0 \n\t"
346
347 #define MULADDC_CORE \
348 "lwzu r7, 4(r3) \n\t" \
349 "mullw r8, r7, r6 \n\t" \
350 "mulhwu r9, r7, r6 \n\t" \
351 "adde r8, r8, r5 \n\t" \
352 "lwz r7, 4(r4) \n\t" \
353 "addze r5, r9 \n\t" \
354 "addc r8, r8, r7 \n\t" \
355 "stwu r8, 4(r4) \n\t"
356
357 #define MULADDC_STOP \
358 "addze r5, r5 \n\t" \
359 "addi r4, r4, 4 \n\t" \
360 "addi r3, r3, 4 \n\t" \
361 "stw r5, %0 \n\t" \
362 "stw r4, %1 \n\t" \
363 "stw r3, %2 \n\t" \
364 : "=m" (c), "=m" (d), "=m" (s) \
365 : "m" (s), "m" (d), "m" (c), "m" (b) \
366 : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
367 );
368
369 #else /* __MACH__ && __APPLE__ */
370
371 #define MULADDC_INIT \
372 asm( \
373 "lwz %%r3, %3 \n\t" \
374 "lwz %%r4, %4 \n\t" \
375 "lwz %%r5, %5 \n\t" \
376 "lwz %%r6, %6 \n\t" \
377 "addi %%r3, %%r3, -4 \n\t" \
378 "addi %%r4, %%r4, -4 \n\t" \
379 "addic %%r5, %%r5, 0 \n\t"
380
381 #define MULADDC_CORE \
382 "lwzu %%r7, 4(%%r3) \n\t" \
383 "mullw %%r8, %%r7, %%r6 \n\t" \
384 "mulhwu %%r9, %%r7, %%r6 \n\t" \
385 "adde %%r8, %%r8, %%r5 \n\t" \
386 "lwz %%r7, 4(%%r4) \n\t" \
387 "addze %%r5, %%r9 \n\t" \
388 "addc %%r8, %%r8, %%r7 \n\t" \
389 "stwu %%r8, 4(%%r4) \n\t"
390
391 #define MULADDC_STOP \
392 "addze %%r5, %%r5 \n\t" \
393 "addi %%r4, %%r4, 4 \n\t" \
394 "addi %%r3, %%r3, 4 \n\t" \
395 "stw %%r5, %0 \n\t" \
396 "stw %%r4, %1 \n\t" \
397 "stw %%r3, %2 \n\t" \
398 : "=m" (c), "=m" (d), "=m" (s) \
399 : "m" (s), "m" (d), "m" (c), "m" (b) \
400 : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
401 );
402
403 #endif /* __MACH__ && __APPLE__ */
404
405 #endif /* PPC32 */
406
407 /*
408 * The Sparc(64) assembly is reported to be broken.
409 * Disable it for now, until we're able to fix it.
410 */
411 #if 0 && defined(__sparc__)
412 #if defined(__sparc64__)
413
414 #define MULADDC_INIT \
415 asm( \
416 "ldx %3, %%o0 \n\t" \
417 "ldx %4, %%o1 \n\t" \
418 "ld %5, %%o2 \n\t" \
419 "ld %6, %%o3 \n\t"
420
421 #define MULADDC_CORE \
422 "ld [%%o0], %%o4 \n\t" \
423 "inc 4, %%o0 \n\t" \
424 "ld [%%o1], %%o5 \n\t" \
425 "umul %%o3, %%o4, %%o4 \n\t" \
426 "addcc %%o4, %%o2, %%o4 \n\t" \
427 "rd %%y, %%g1 \n\t" \
428 "addx %%g1, 0, %%g1 \n\t" \
429 "addcc %%o4, %%o5, %%o4 \n\t" \
430 "st %%o4, [%%o1] \n\t" \
431 "addx %%g1, 0, %%o2 \n\t" \
432 "inc 4, %%o1 \n\t"
433
434 #define MULADDC_STOP \
435 "st %%o2, %0 \n\t" \
436 "stx %%o1, %1 \n\t" \
437 "stx %%o0, %2 \n\t" \
438 : "=m" (c), "=m" (d), "=m" (s) \
439 : "m" (s), "m" (d), "m" (c), "m" (b) \
440 : "g1", "o0", "o1", "o2", "o3", "o4", \
441 "o5" \
442 );
443
444 #else /* __sparc64__ */
445
446 #define MULADDC_INIT \
447 asm( \
448 "ld %3, %%o0 \n\t" \
449 "ld %4, %%o1 \n\t" \
450 "ld %5, %%o2 \n\t" \
451 "ld %6, %%o3 \n\t"
452
453 #define MULADDC_CORE \
454 "ld [%%o0], %%o4 \n\t" \
455 "inc 4, %%o0 \n\t" \
456 "ld [%%o1], %%o5 \n\t" \
457 "umul %%o3, %%o4, %%o4 \n\t" \
458 "addcc %%o4, %%o2, %%o4 \n\t" \
459 "rd %%y, %%g1 \n\t" \
460 "addx %%g1, 0, %%g1 \n\t" \
461 "addcc %%o4, %%o5, %%o4 \n\t" \
462 "st %%o4, [%%o1] \n\t" \
463 "addx %%g1, 0, %%o2 \n\t" \
464 "inc 4, %%o1 \n\t"
465
466 #define MULADDC_STOP \
467 "st %%o2, %0 \n\t" \
468 "st %%o1, %1 \n\t" \
469 "st %%o0, %2 \n\t" \
470 : "=m" (c), "=m" (d), "=m" (s) \
471 : "m" (s), "m" (d), "m" (c), "m" (b) \
472 : "g1", "o0", "o1", "o2", "o3", "o4", \
473 "o5" \
474 );
475
476 #endif /* __sparc64__ */
477 #endif /* __sparc__ */
478
479 #if defined(__microblaze__) || defined(microblaze)
480
481 #define MULADDC_INIT \
482 asm( \
483 "lwi r3, %3 \n\t" \
484 "lwi r4, %4 \n\t" \
485 "lwi r5, %5 \n\t" \
486 "lwi r6, %6 \n\t" \
487 "andi r7, r6, 0xffff \n\t" \
488 "bsrli r6, r6, 16 \n\t"
489
490 #define MULADDC_CORE \
491 "lhui r8, r3, 0 \n\t" \
492 "addi r3, r3, 2 \n\t" \
493 "lhui r9, r3, 0 \n\t" \
494 "addi r3, r3, 2 \n\t" \
495 "mul r10, r9, r6 \n\t" \
496 "mul r11, r8, r7 \n\t" \
497 "mul r12, r9, r7 \n\t" \
498 "mul r13, r8, r6 \n\t" \
499 "bsrli r8, r10, 16 \n\t" \
500 "bsrli r9, r11, 16 \n\t" \
501 "add r13, r13, r8 \n\t" \
502 "add r13, r13, r9 \n\t" \
503 "bslli r10, r10, 16 \n\t" \
504 "bslli r11, r11, 16 \n\t" \
505 "add r12, r12, r10 \n\t" \
506 "addc r13, r13, r0 \n\t" \
507 "add r12, r12, r11 \n\t" \
508 "addc r13, r13, r0 \n\t" \
509 "lwi r10, r4, 0 \n\t" \
510 "add r12, r12, r10 \n\t" \
511 "addc r13, r13, r0 \n\t" \
512 "add r12, r12, r5 \n\t" \
513 "addc r5, r13, r0 \n\t" \
514 "swi r12, r4, 0 \n\t" \
515 "addi r4, r4, 4 \n\t"
516
517 #define MULADDC_STOP \
518 "swi r5, %0 \n\t" \
519 "swi r4, %1 \n\t" \
520 "swi r3, %2 \n\t" \
521 : "=m" (c), "=m" (d), "=m" (s) \
522 : "m" (s), "m" (d), "m" (c), "m" (b) \
523 : "r3", "r4" "r5", "r6", "r7", "r8", \
524 "r9", "r10", "r11", "r12", "r13" \
525 );
526
527 #endif /* MicroBlaze */
528
529 #if defined(__tricore__)
530
531 #define MULADDC_INIT \
532 asm( \
533 "ld.a %%a2, %3 \n\t" \
534 "ld.a %%a3, %4 \n\t" \
535 "ld.w %%d4, %5 \n\t" \
536 "ld.w %%d1, %6 \n\t" \
537 "xor %%d5, %%d5 \n\t"
538
539 #define MULADDC_CORE \
540 "ld.w %%d0, [%%a2+] \n\t" \
541 "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \
542 "ld.w %%d0, [%%a3] \n\t" \
543 "addx %%d2, %%d2, %%d0 \n\t" \
544 "addc %%d3, %%d3, 0 \n\t" \
545 "mov %%d4, %%d3 \n\t" \
546 "st.w [%%a3+], %%d2 \n\t"
547
548 #define MULADDC_STOP \
549 "st.w %0, %%d4 \n\t" \
550 "st.a %1, %%a3 \n\t" \
551 "st.a %2, %%a2 \n\t" \
552 : "=m" (c), "=m" (d), "=m" (s) \
553 : "m" (s), "m" (d), "m" (c), "m" (b) \
554 : "d0", "d1", "e2", "d4", "a2", "a3" \
555 );
556
557 #endif /* TriCore */
558
559 /*
560 * gcc -O0 by default uses r7 for the frame pointer, so it complains about our
561 * use of r7 below, unless -fomit-frame-pointer is passed. Unfortunately,
562 * passing that option is not easy when building with yotta.
563 *
564 * On the other hand, -fomit-frame-pointer is implied by any -Ox options with
565 * x !=0, which we can detect using __OPTIMIZE__ (which is also defined by
566 * clang and armcc5 under the same conditions).
567 *
568 * So, only use the optimized assembly below for optimized build, which avoids
569 * the build error and is pretty reasonable anyway.
570 */
571 #if defined(__GNUC__) && !defined(__OPTIMIZE__)
572 #define MULADDC_CANNOT_USE_R7
573 #endif
574
575 #if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7)
576
577 #if defined(__thumb__) && !defined(__thumb2__)
578
579 #define MULADDC_INIT \
580 asm( \
581 "ldr r0, %3 \n\t" \
582 "ldr r1, %4 \n\t" \
583 "ldr r2, %5 \n\t" \
584 "ldr r3, %6 \n\t" \
585 "lsr r7, r3, #16 \n\t" \
586 "mov r9, r7 \n\t" \
587 "lsl r7, r3, #16 \n\t" \
588 "lsr r7, r7, #16 \n\t" \
589 "mov r8, r7 \n\t"
590
591 #define MULADDC_CORE \
592 "ldmia r0!, {r6} \n\t" \
593 "lsr r7, r6, #16 \n\t" \
594 "lsl r6, r6, #16 \n\t" \
595 "lsr r6, r6, #16 \n\t" \
596 "mov r4, r8 \n\t" \
597 "mul r4, r6 \n\t" \
598 "mov r3, r9 \n\t" \
599 "mul r6, r3 \n\t" \
600 "mov r5, r9 \n\t" \
601 "mul r5, r7 \n\t" \
602 "mov r3, r8 \n\t" \
603 "mul r7, r3 \n\t" \
604 "lsr r3, r6, #16 \n\t" \
605 "add r5, r5, r3 \n\t" \
606 "lsr r3, r7, #16 \n\t" \
607 "add r5, r5, r3 \n\t" \
608 "add r4, r4, r2 \n\t" \
609 "mov r2, #0 \n\t" \
610 "adc r5, r2 \n\t" \
611 "lsl r3, r6, #16 \n\t" \
612 "add r4, r4, r3 \n\t" \
613 "adc r5, r2 \n\t" \
614 "lsl r3, r7, #16 \n\t" \
615 "add r4, r4, r3 \n\t" \
616 "adc r5, r2 \n\t" \
617 "ldr r3, [r1] \n\t" \
618 "add r4, r4, r3 \n\t" \
619 "adc r2, r5 \n\t" \
620 "stmia r1!, {r4} \n\t"
621
622 #define MULADDC_STOP \
623 "str r2, %0 \n\t" \
624 "str r1, %1 \n\t" \
625 "str r0, %2 \n\t" \
626 : "=m" (c), "=m" (d), "=m" (s) \
627 : "m" (s), "m" (d), "m" (c), "m" (b) \
628 : "r0", "r1", "r2", "r3", "r4", "r5", \
629 "r6", "r7", "r8", "r9", "cc" \
630 );
631
632 #else
633
634 #define MULADDC_INIT \
635 asm( \
636 "ldr r0, %3 \n\t" \
637 "ldr r1, %4 \n\t" \
638 "ldr r2, %5 \n\t" \
639 "ldr r3, %6 \n\t"
640
641 #define MULADDC_CORE \
642 "ldr r4, [r0], #4 \n\t" \
643 "mov r5, #0 \n\t" \
644 "ldr r6, [r1] \n\t" \
645 "umlal r2, r5, r3, r4 \n\t" \
646 "adds r7, r6, r2 \n\t" \
647 "adc r2, r5, #0 \n\t" \
648 "str r7, [r1], #4 \n\t"
649
650 #define MULADDC_STOP \
651 "str r2, %0 \n\t" \
652 "str r1, %1 \n\t" \
653 "str r0, %2 \n\t" \
654 : "=m" (c), "=m" (d), "=m" (s) \
655 : "m" (s), "m" (d), "m" (c), "m" (b) \
656 : "r0", "r1", "r2", "r3", "r4", "r5", \
657 "r6", "r7", "cc" \
658 );
659
660 #endif /* Thumb */
661
662 #endif /* ARMv3 */
663
664 #if defined(__alpha__)
665
666 #define MULADDC_INIT \
667 asm( \
668 "ldq $1, %3 \n\t" \
669 "ldq $2, %4 \n\t" \
670 "ldq $3, %5 \n\t" \
671 "ldq $4, %6 \n\t"
672
673 #define MULADDC_CORE \
674 "ldq $6, 0($1) \n\t" \
675 "addq $1, 8, $1 \n\t" \
676 "mulq $6, $4, $7 \n\t" \
677 "umulh $6, $4, $6 \n\t" \
678 "addq $7, $3, $7 \n\t" \
679 "cmpult $7, $3, $3 \n\t" \
680 "ldq $5, 0($2) \n\t" \
681 "addq $7, $5, $7 \n\t" \
682 "cmpult $7, $5, $5 \n\t" \
683 "stq $7, 0($2) \n\t" \
684 "addq $2, 8, $2 \n\t" \
685 "addq $6, $3, $3 \n\t" \
686 "addq $5, $3, $3 \n\t"
687
688 #define MULADDC_STOP \
689 "stq $3, %0 \n\t" \
690 "stq $2, %1 \n\t" \
691 "stq $1, %2 \n\t" \
692 : "=m" (c), "=m" (d), "=m" (s) \
693 : "m" (s), "m" (d), "m" (c), "m" (b) \
694 : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \
695 );
696 #endif /* Alpha */
697
698 #if defined(__mips__) && !defined(__mips64)
699
700 #define MULADDC_INIT \
701 asm( \
702 "lw $10, %3 \n\t" \
703 "lw $11, %4 \n\t" \
704 "lw $12, %5 \n\t" \
705 "lw $13, %6 \n\t"
706
707 #define MULADDC_CORE \
708 "lw $14, 0($10) \n\t" \
709 "multu $13, $14 \n\t" \
710 "addi $10, $10, 4 \n\t" \
711 "mflo $14 \n\t" \
712 "mfhi $9 \n\t" \
713 "addu $14, $12, $14 \n\t" \
714 "lw $15, 0($11) \n\t" \
715 "sltu $12, $14, $12 \n\t" \
716 "addu $15, $14, $15 \n\t" \
717 "sltu $14, $15, $14 \n\t" \
718 "addu $12, $12, $9 \n\t" \
719 "sw $15, 0($11) \n\t" \
720 "addu $12, $12, $14 \n\t" \
721 "addi $11, $11, 4 \n\t"
722
723 #define MULADDC_STOP \
724 "sw $12, %0 \n\t" \
725 "sw $11, %1 \n\t" \
726 "sw $10, %2 \n\t" \
727 : "=m" (c), "=m" (d), "=m" (s) \
728 : "m" (s), "m" (d), "m" (c), "m" (b) \
729 : "$9", "$10", "$11", "$12", "$13", "$14", "$15" \
730 );
731
732 #endif /* MIPS */
733 #endif /* GNUC */
734
735 #if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
736
737 #define MULADDC_INIT \
738 __asm mov esi, s \
739 __asm mov edi, d \
740 __asm mov ecx, c \
741 __asm mov ebx, b
742
743 #define MULADDC_CORE \
744 __asm lodsd \
745 __asm mul ebx \
746 __asm add eax, ecx \
747 __asm adc edx, 0 \
748 __asm add eax, [edi] \
749 __asm adc edx, 0 \
750 __asm mov ecx, edx \
751 __asm stosd
752
753 #if defined(MBEDTLS_HAVE_SSE2)
754
755 #define EMIT __asm _emit
756
757 #define MULADDC_HUIT \
758 EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
759 EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
760 EMIT 0x0F EMIT 0x6E EMIT 0x1F \
761 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
762 EMIT 0x0F EMIT 0x6E EMIT 0x16 \
763 EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
764 EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
765 EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
766 EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
767 EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
768 EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
769 EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
770 EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
771 EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
772 EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
773 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
774 EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
775 EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
776 EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
777 EMIT 0x0F EMIT 0x7E EMIT 0x0F \
778 EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
779 EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
780 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
781 EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
782 EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
783 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
784 EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
785 EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
786 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
787 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
788 EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
789 EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
790 EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
791 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
792 EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
793 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
794 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
795 EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
796 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
797 EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
798 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
799 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
800 EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
801 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
802 EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
803 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
804 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
805 EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
806 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
807 EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
808 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
809 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
810 EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
811 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
812 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
813 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
814 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
815 EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
816 EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
817 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
818 EMIT 0x0F EMIT 0x7E EMIT 0xC9
819
820 #define MULADDC_STOP \
821 EMIT 0x0F EMIT 0x77 \
822 __asm mov c, ecx \
823 __asm mov d, edi \
824 __asm mov s, esi \
825
826 #else
827
828 #define MULADDC_STOP \
829 __asm mov c, ecx \
830 __asm mov d, edi \
831 __asm mov s, esi \
832
833 #endif /* SSE2 */
834 #endif /* MSVC */
835
836 #endif /* MBEDTLS_HAVE_ASM */
837
838 #if !defined(MULADDC_CORE)
839 #if defined(MBEDTLS_HAVE_UDBL)
840
841 #define MULADDC_INIT \
842 { \
843 mbedtls_t_udbl r; \
844 mbedtls_mpi_uint r0, r1;
845
846 #define MULADDC_CORE \
847 r = *(s++) * (mbedtls_t_udbl) b; \
848 r0 = (mbedtls_mpi_uint) r; \
849 r1 = (mbedtls_mpi_uint)( r >> biL ); \
850 r0 += c; r1 += (r0 < c); \
851 r0 += *d; r1 += (r0 < *d); \
852 c = r1; *(d++) = r0;
853
854 #define MULADDC_STOP \
855 }
856
857 #else
858 #define MULADDC_INIT \
859 { \
860 mbedtls_mpi_uint s0, s1, b0, b1; \
861 mbedtls_mpi_uint r0, r1, rx, ry; \
862 b0 = ( b << biH ) >> biH; \
863 b1 = ( b >> biH );
864
865 #define MULADDC_CORE \
866 s0 = ( *s << biH ) >> biH; \
867 s1 = ( *s >> biH ); s++; \
868 rx = s0 * b1; r0 = s0 * b0; \
869 ry = s1 * b0; r1 = s1 * b1; \
870 r1 += ( rx >> biH ); \
871 r1 += ( ry >> biH ); \
872 rx <<= biH; ry <<= biH; \
873 r0 += rx; r1 += (r0 < rx); \
874 r0 += ry; r1 += (r0 < ry); \
875 r0 += c; r1 += (r0 < c); \
876 r0 += *d; r1 += (r0 < *d); \
877 c = r1; *(d++) = r0;
878
879 #define MULADDC_STOP \
880 }
881
882 #endif /* C (generic) */
883 #endif /* C (longlong) */
884
885 #endif /* bn_mul.h */
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