bn_mul.h 34 KB

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  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. #include "bignum.h"
  40. #if defined(MBEDTLS_HAVE_ASM)
  41. #ifndef asm
  42. #define asm __asm
  43. #endif
  44. /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
  45. #if defined(__GNUC__) && \
  46. ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
  47. #if defined(__i386__)
  48. #define MULADDC_INIT \
  49. asm( \
  50. "movl %%ebx, %0 \n\t" \
  51. "movl %5, %%esi \n\t" \
  52. "movl %6, %%edi \n\t" \
  53. "movl %7, %%ecx \n\t" \
  54. "movl %8, %%ebx \n\t"
  55. #define MULADDC_CORE \
  56. "lodsl \n\t" \
  57. "mull %%ebx \n\t" \
  58. "addl %%ecx, %%eax \n\t" \
  59. "adcl $0, %%edx \n\t" \
  60. "addl (%%edi), %%eax \n\t" \
  61. "adcl $0, %%edx \n\t" \
  62. "movl %%edx, %%ecx \n\t" \
  63. "stosl \n\t"
  64. #if defined(MBEDTLS_HAVE_SSE2)
  65. #define MULADDC_HUIT \
  66. "movd %%ecx, %%mm1 \n\t" \
  67. "movd %%ebx, %%mm0 \n\t" \
  68. "movd (%%edi), %%mm3 \n\t" \
  69. "paddq %%mm3, %%mm1 \n\t" \
  70. "movd (%%esi), %%mm2 \n\t" \
  71. "pmuludq %%mm0, %%mm2 \n\t" \
  72. "movd 4(%%esi), %%mm4 \n\t" \
  73. "pmuludq %%mm0, %%mm4 \n\t" \
  74. "movd 8(%%esi), %%mm6 \n\t" \
  75. "pmuludq %%mm0, %%mm6 \n\t" \
  76. "movd 12(%%esi), %%mm7 \n\t" \
  77. "pmuludq %%mm0, %%mm7 \n\t" \
  78. "paddq %%mm2, %%mm1 \n\t" \
  79. "movd 4(%%edi), %%mm3 \n\t" \
  80. "paddq %%mm4, %%mm3 \n\t" \
  81. "movd 8(%%edi), %%mm5 \n\t" \
  82. "paddq %%mm6, %%mm5 \n\t" \
  83. "movd 12(%%edi), %%mm4 \n\t" \
  84. "paddq %%mm4, %%mm7 \n\t" \
  85. "movd %%mm1, (%%edi) \n\t" \
  86. "movd 16(%%esi), %%mm2 \n\t" \
  87. "pmuludq %%mm0, %%mm2 \n\t" \
  88. "psrlq $32, %%mm1 \n\t" \
  89. "movd 20(%%esi), %%mm4 \n\t" \
  90. "pmuludq %%mm0, %%mm4 \n\t" \
  91. "paddq %%mm3, %%mm1 \n\t" \
  92. "movd 24(%%esi), %%mm6 \n\t" \
  93. "pmuludq %%mm0, %%mm6 \n\t" \
  94. "movd %%mm1, 4(%%edi) \n\t" \
  95. "psrlq $32, %%mm1 \n\t" \
  96. "movd 28(%%esi), %%mm3 \n\t" \
  97. "pmuludq %%mm0, %%mm3 \n\t" \
  98. "paddq %%mm5, %%mm1 \n\t" \
  99. "movd 16(%%edi), %%mm5 \n\t" \
  100. "paddq %%mm5, %%mm2 \n\t" \
  101. "movd %%mm1, 8(%%edi) \n\t" \
  102. "psrlq $32, %%mm1 \n\t" \
  103. "paddq %%mm7, %%mm1 \n\t" \
  104. "movd 20(%%edi), %%mm5 \n\t" \
  105. "paddq %%mm5, %%mm4 \n\t" \
  106. "movd %%mm1, 12(%%edi) \n\t" \
  107. "psrlq $32, %%mm1 \n\t" \
  108. "paddq %%mm2, %%mm1 \n\t" \
  109. "movd 24(%%edi), %%mm5 \n\t" \
  110. "paddq %%mm5, %%mm6 \n\t" \
  111. "movd %%mm1, 16(%%edi) \n\t" \
  112. "psrlq $32, %%mm1 \n\t" \
  113. "paddq %%mm4, %%mm1 \n\t" \
  114. "movd 28(%%edi), %%mm5 \n\t" \
  115. "paddq %%mm5, %%mm3 \n\t" \
  116. "movd %%mm1, 20(%%edi) \n\t" \
  117. "psrlq $32, %%mm1 \n\t" \
  118. "paddq %%mm6, %%mm1 \n\t" \
  119. "movd %%mm1, 24(%%edi) \n\t" \
  120. "psrlq $32, %%mm1 \n\t" \
  121. "paddq %%mm3, %%mm1 \n\t" \
  122. "movd %%mm1, 28(%%edi) \n\t" \
  123. "addl $32, %%edi \n\t" \
  124. "addl $32, %%esi \n\t" \
  125. "psrlq $32, %%mm1 \n\t" \
  126. "movd %%mm1, %%ecx \n\t"
  127. #define MULADDC_STOP \
  128. "emms \n\t" \
  129. "movl %4, %%ebx \n\t" \
  130. "movl %%ecx, %1 \n\t" \
  131. "movl %%edi, %2 \n\t" \
  132. "movl %%esi, %3 \n\t" \
  133. : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
  134. : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
  135. : "eax", "ecx", "edx", "esi", "edi" \
  136. );
  137. #else
  138. #define MULADDC_STOP \
  139. "movl %4, %%ebx \n\t" \
  140. "movl %%ecx, %1 \n\t" \
  141. "movl %%edi, %2 \n\t" \
  142. "movl %%esi, %3 \n\t" \
  143. : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
  144. : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
  145. : "eax", "ecx", "edx", "esi", "edi" \
  146. );
  147. #endif /* SSE2 */
  148. #endif /* i386 */
  149. #if defined(__amd64__) || defined (__x86_64__)
  150. #define MULADDC_INIT \
  151. asm( \
  152. "movq %3, %%rsi \n\t" \
  153. "movq %4, %%rdi \n\t" \
  154. "movq %5, %%rcx \n\t" \
  155. "movq %6, %%rbx \n\t" \
  156. "xorq %%r8, %%r8 \n\t"
  157. #define MULADDC_CORE \
  158. "movq (%%rsi), %%rax \n\t" \
  159. "mulq %%rbx \n\t" \
  160. "addq $8, %%rsi \n\t" \
  161. "addq %%rcx, %%rax \n\t" \
  162. "movq %%r8, %%rcx \n\t" \
  163. "adcq $0, %%rdx \n\t" \
  164. "nop \n\t" \
  165. "addq %%rax, (%%rdi) \n\t" \
  166. "adcq %%rdx, %%rcx \n\t" \
  167. "addq $8, %%rdi \n\t"
  168. #define MULADDC_STOP \
  169. "movq %%rcx, %0 \n\t" \
  170. "movq %%rdi, %1 \n\t" \
  171. "movq %%rsi, %2 \n\t" \
  172. : "=m" (c), "=m" (d), "=m" (s) \
  173. : "m" (s), "m" (d), "m" (c), "m" (b) \
  174. : "rax", "rcx", "rdx", "rbx", "rsi", "rdi", "r8" \
  175. );
  176. #endif /* AMD64 */
  177. #if defined(__mc68020__) || defined(__mcpu32__)
  178. #define MULADDC_INIT \
  179. asm( \
  180. "movl %3, %%a2 \n\t" \
  181. "movl %4, %%a3 \n\t" \
  182. "movl %5, %%d3 \n\t" \
  183. "movl %6, %%d2 \n\t" \
  184. "moveq #0, %%d0 \n\t"
  185. #define MULADDC_CORE \
  186. "movel %%a2@+, %%d1 \n\t" \
  187. "mulul %%d2, %%d4:%%d1 \n\t" \
  188. "addl %%d3, %%d1 \n\t" \
  189. "addxl %%d0, %%d4 \n\t" \
  190. "moveq #0, %%d3 \n\t" \
  191. "addl %%d1, %%a3@+ \n\t" \
  192. "addxl %%d4, %%d3 \n\t"
  193. #define MULADDC_STOP \
  194. "movl %%d3, %0 \n\t" \
  195. "movl %%a3, %1 \n\t" \
  196. "movl %%a2, %2 \n\t" \
  197. : "=m" (c), "=m" (d), "=m" (s) \
  198. : "m" (s), "m" (d), "m" (c), "m" (b) \
  199. : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \
  200. );
  201. #define MULADDC_HUIT \
  202. "movel %%a2@+, %%d1 \n\t" \
  203. "mulul %%d2, %%d4:%%d1 \n\t" \
  204. "addxl %%d3, %%d1 \n\t" \
  205. "addxl %%d0, %%d4 \n\t" \
  206. "addl %%d1, %%a3@+ \n\t" \
  207. "movel %%a2@+, %%d1 \n\t" \
  208. "mulul %%d2, %%d3:%%d1 \n\t" \
  209. "addxl %%d4, %%d1 \n\t" \
  210. "addxl %%d0, %%d3 \n\t" \
  211. "addl %%d1, %%a3@+ \n\t" \
  212. "movel %%a2@+, %%d1 \n\t" \
  213. "mulul %%d2, %%d4:%%d1 \n\t" \
  214. "addxl %%d3, %%d1 \n\t" \
  215. "addxl %%d0, %%d4 \n\t" \
  216. "addl %%d1, %%a3@+ \n\t" \
  217. "movel %%a2@+, %%d1 \n\t" \
  218. "mulul %%d2, %%d3:%%d1 \n\t" \
  219. "addxl %%d4, %%d1 \n\t" \
  220. "addxl %%d0, %%d3 \n\t" \
  221. "addl %%d1, %%a3@+ \n\t" \
  222. "movel %%a2@+, %%d1 \n\t" \
  223. "mulul %%d2, %%d4:%%d1 \n\t" \
  224. "addxl %%d3, %%d1 \n\t" \
  225. "addxl %%d0, %%d4 \n\t" \
  226. "addl %%d1, %%a3@+ \n\t" \
  227. "movel %%a2@+, %%d1 \n\t" \
  228. "mulul %%d2, %%d3:%%d1 \n\t" \
  229. "addxl %%d4, %%d1 \n\t" \
  230. "addxl %%d0, %%d3 \n\t" \
  231. "addl %%d1, %%a3@+ \n\t" \
  232. "movel %%a2@+, %%d1 \n\t" \
  233. "mulul %%d2, %%d4:%%d1 \n\t" \
  234. "addxl %%d3, %%d1 \n\t" \
  235. "addxl %%d0, %%d4 \n\t" \
  236. "addl %%d1, %%a3@+ \n\t" \
  237. "movel %%a2@+, %%d1 \n\t" \
  238. "mulul %%d2, %%d3:%%d1 \n\t" \
  239. "addxl %%d4, %%d1 \n\t" \
  240. "addxl %%d0, %%d3 \n\t" \
  241. "addl %%d1, %%a3@+ \n\t" \
  242. "addxl %%d0, %%d3 \n\t"
  243. #endif /* MC68000 */
  244. #if defined(__powerpc64__) || defined(__ppc64__)
  245. #if defined(__MACH__) && defined(__APPLE__)
  246. #define MULADDC_INIT \
  247. asm( \
  248. "ld r3, %3 \n\t" \
  249. "ld r4, %4 \n\t" \
  250. "ld r5, %5 \n\t" \
  251. "ld r6, %6 \n\t" \
  252. "addi r3, r3, -8 \n\t" \
  253. "addi r4, r4, -8 \n\t" \
  254. "addic r5, r5, 0 \n\t"
  255. #define MULADDC_CORE \
  256. "ldu r7, 8(r3) \n\t" \
  257. "mulld r8, r7, r6 \n\t" \
  258. "mulhdu r9, r7, r6 \n\t" \
  259. "adde r8, r8, r5 \n\t" \
  260. "ld r7, 8(r4) \n\t" \
  261. "addze r5, r9 \n\t" \
  262. "addc r8, r8, r7 \n\t" \
  263. "stdu r8, 8(r4) \n\t"
  264. #define MULADDC_STOP \
  265. "addze r5, r5 \n\t" \
  266. "addi r4, r4, 8 \n\t" \
  267. "addi r3, r3, 8 \n\t" \
  268. "std r5, %0 \n\t" \
  269. "std r4, %1 \n\t" \
  270. "std r3, %2 \n\t" \
  271. : "=m" (c), "=m" (d), "=m" (s) \
  272. : "m" (s), "m" (d), "m" (c), "m" (b) \
  273. : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
  274. );
  275. #else /* __MACH__ && __APPLE__ */
  276. #define MULADDC_INIT \
  277. asm( \
  278. "ld %%r3, %3 \n\t" \
  279. "ld %%r4, %4 \n\t" \
  280. "ld %%r5, %5 \n\t" \
  281. "ld %%r6, %6 \n\t" \
  282. "addi %%r3, %%r3, -8 \n\t" \
  283. "addi %%r4, %%r4, -8 \n\t" \
  284. "addic %%r5, %%r5, 0 \n\t"
  285. #define MULADDC_CORE \
  286. "ldu %%r7, 8(%%r3) \n\t" \
  287. "mulld %%r8, %%r7, %%r6 \n\t" \
  288. "mulhdu %%r9, %%r7, %%r6 \n\t" \
  289. "adde %%r8, %%r8, %%r5 \n\t" \
  290. "ld %%r7, 8(%%r4) \n\t" \
  291. "addze %%r5, %%r9 \n\t" \
  292. "addc %%r8, %%r8, %%r7 \n\t" \
  293. "stdu %%r8, 8(%%r4) \n\t"
  294. #define MULADDC_STOP \
  295. "addze %%r5, %%r5 \n\t" \
  296. "addi %%r4, %%r4, 8 \n\t" \
  297. "addi %%r3, %%r3, 8 \n\t" \
  298. "std %%r5, %0 \n\t" \
  299. "std %%r4, %1 \n\t" \
  300. "std %%r3, %2 \n\t" \
  301. : "=m" (c), "=m" (d), "=m" (s) \
  302. : "m" (s), "m" (d), "m" (c), "m" (b) \
  303. : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
  304. );
  305. #endif /* __MACH__ && __APPLE__ */
  306. #elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */
  307. #if defined(__MACH__) && defined(__APPLE__)
  308. #define MULADDC_INIT \
  309. asm( \
  310. "lwz r3, %3 \n\t" \
  311. "lwz r4, %4 \n\t" \
  312. "lwz r5, %5 \n\t" \
  313. "lwz r6, %6 \n\t" \
  314. "addi r3, r3, -4 \n\t" \
  315. "addi r4, r4, -4 \n\t" \
  316. "addic r5, r5, 0 \n\t"
  317. #define MULADDC_CORE \
  318. "lwzu r7, 4(r3) \n\t" \
  319. "mullw r8, r7, r6 \n\t" \
  320. "mulhwu r9, r7, r6 \n\t" \
  321. "adde r8, r8, r5 \n\t" \
  322. "lwz r7, 4(r4) \n\t" \
  323. "addze r5, r9 \n\t" \
  324. "addc r8, r8, r7 \n\t" \
  325. "stwu r8, 4(r4) \n\t"
  326. #define MULADDC_STOP \
  327. "addze r5, r5 \n\t" \
  328. "addi r4, r4, 4 \n\t" \
  329. "addi r3, r3, 4 \n\t" \
  330. "stw r5, %0 \n\t" \
  331. "stw r4, %1 \n\t" \
  332. "stw r3, %2 \n\t" \
  333. : "=m" (c), "=m" (d), "=m" (s) \
  334. : "m" (s), "m" (d), "m" (c), "m" (b) \
  335. : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
  336. );
  337. #else /* __MACH__ && __APPLE__ */
  338. #define MULADDC_INIT \
  339. asm( \
  340. "lwz %%r3, %3 \n\t" \
  341. "lwz %%r4, %4 \n\t" \
  342. "lwz %%r5, %5 \n\t" \
  343. "lwz %%r6, %6 \n\t" \
  344. "addi %%r3, %%r3, -4 \n\t" \
  345. "addi %%r4, %%r4, -4 \n\t" \
  346. "addic %%r5, %%r5, 0 \n\t"
  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. #define MULADDC_STOP \
  357. "addze %%r5, %%r5 \n\t" \
  358. "addi %%r4, %%r4, 4 \n\t" \
  359. "addi %%r3, %%r3, 4 \n\t" \
  360. "stw %%r5, %0 \n\t" \
  361. "stw %%r4, %1 \n\t" \
  362. "stw %%r3, %2 \n\t" \
  363. : "=m" (c), "=m" (d), "=m" (s) \
  364. : "m" (s), "m" (d), "m" (c), "m" (b) \
  365. : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
  366. );
  367. #endif /* __MACH__ && __APPLE__ */
  368. #endif /* PPC32 */
  369. /*
  370. * The Sparc(64) assembly is reported to be broken.
  371. * Disable it for now, until we're able to fix it.
  372. */
  373. #if 0 && defined(__sparc__)
  374. #if defined(__sparc64__)
  375. #define MULADDC_INIT \
  376. asm( \
  377. "ldx %3, %%o0 \n\t" \
  378. "ldx %4, %%o1 \n\t" \
  379. "ld %5, %%o2 \n\t" \
  380. "ld %6, %%o3 \n\t"
  381. #define MULADDC_CORE \
  382. "ld [%%o0], %%o4 \n\t" \
  383. "inc 4, %%o0 \n\t" \
  384. "ld [%%o1], %%o5 \n\t" \
  385. "umul %%o3, %%o4, %%o4 \n\t" \
  386. "addcc %%o4, %%o2, %%o4 \n\t" \
  387. "rd %%y, %%g1 \n\t" \
  388. "addx %%g1, 0, %%g1 \n\t" \
  389. "addcc %%o4, %%o5, %%o4 \n\t" \
  390. "st %%o4, [%%o1] \n\t" \
  391. "addx %%g1, 0, %%o2 \n\t" \
  392. "inc 4, %%o1 \n\t"
  393. #define MULADDC_STOP \
  394. "st %%o2, %0 \n\t" \
  395. "stx %%o1, %1 \n\t" \
  396. "stx %%o0, %2 \n\t" \
  397. : "=m" (c), "=m" (d), "=m" (s) \
  398. : "m" (s), "m" (d), "m" (c), "m" (b) \
  399. : "g1", "o0", "o1", "o2", "o3", "o4", \
  400. "o5" \
  401. );
  402. #else /* __sparc64__ */
  403. #define MULADDC_INIT \
  404. asm( \
  405. "ld %3, %%o0 \n\t" \
  406. "ld %4, %%o1 \n\t" \
  407. "ld %5, %%o2 \n\t" \
  408. "ld %6, %%o3 \n\t"
  409. #define MULADDC_CORE \
  410. "ld [%%o0], %%o4 \n\t" \
  411. "inc 4, %%o0 \n\t" \
  412. "ld [%%o1], %%o5 \n\t" \
  413. "umul %%o3, %%o4, %%o4 \n\t" \
  414. "addcc %%o4, %%o2, %%o4 \n\t" \
  415. "rd %%y, %%g1 \n\t" \
  416. "addx %%g1, 0, %%g1 \n\t" \
  417. "addcc %%o4, %%o5, %%o4 \n\t" \
  418. "st %%o4, [%%o1] \n\t" \
  419. "addx %%g1, 0, %%o2 \n\t" \
  420. "inc 4, %%o1 \n\t"
  421. #define MULADDC_STOP \
  422. "st %%o2, %0 \n\t" \
  423. "st %%o1, %1 \n\t" \
  424. "st %%o0, %2 \n\t" \
  425. : "=m" (c), "=m" (d), "=m" (s) \
  426. : "m" (s), "m" (d), "m" (c), "m" (b) \
  427. : "g1", "o0", "o1", "o2", "o3", "o4", \
  428. "o5" \
  429. );
  430. #endif /* __sparc64__ */
  431. #endif /* __sparc__ */
  432. #if defined(__microblaze__) || defined(microblaze)
  433. #define MULADDC_INIT \
  434. asm( \
  435. "lwi r3, %3 \n\t" \
  436. "lwi r4, %4 \n\t" \
  437. "lwi r5, %5 \n\t" \
  438. "lwi r6, %6 \n\t" \
  439. "andi r7, r6, 0xffff \n\t" \
  440. "bsrli r6, r6, 16 \n\t"
  441. #define MULADDC_CORE \
  442. "lhui r8, r3, 0 \n\t" \
  443. "addi r3, r3, 2 \n\t" \
  444. "lhui r9, r3, 0 \n\t" \
  445. "addi r3, r3, 2 \n\t" \
  446. "mul r10, r9, r6 \n\t" \
  447. "mul r11, r8, r7 \n\t" \
  448. "mul r12, r9, r7 \n\t" \
  449. "mul r13, r8, r6 \n\t" \
  450. "bsrli r8, r10, 16 \n\t" \
  451. "bsrli r9, r11, 16 \n\t" \
  452. "add r13, r13, r8 \n\t" \
  453. "add r13, r13, r9 \n\t" \
  454. "bslli r10, r10, 16 \n\t" \
  455. "bslli r11, r11, 16 \n\t" \
  456. "add r12, r12, r10 \n\t" \
  457. "addc r13, r13, r0 \n\t" \
  458. "add r12, r12, r11 \n\t" \
  459. "addc r13, r13, r0 \n\t" \
  460. "lwi r10, r4, 0 \n\t" \
  461. "add r12, r12, r10 \n\t" \
  462. "addc r13, r13, r0 \n\t" \
  463. "add r12, r12, r5 \n\t" \
  464. "addc r5, r13, r0 \n\t" \
  465. "swi r12, r4, 0 \n\t" \
  466. "addi r4, r4, 4 \n\t"
  467. #define MULADDC_STOP \
  468. "swi r5, %0 \n\t" \
  469. "swi r4, %1 \n\t" \
  470. "swi r3, %2 \n\t" \
  471. : "=m" (c), "=m" (d), "=m" (s) \
  472. : "m" (s), "m" (d), "m" (c), "m" (b) \
  473. : "r3", "r4" "r5", "r6", "r7", "r8", \
  474. "r9", "r10", "r11", "r12", "r13" \
  475. );
  476. #endif /* MicroBlaze */
  477. #if defined(__tricore__)
  478. #define MULADDC_INIT \
  479. asm( \
  480. "ld.a %%a2, %3 \n\t" \
  481. "ld.a %%a3, %4 \n\t" \
  482. "ld.w %%d4, %5 \n\t" \
  483. "ld.w %%d1, %6 \n\t" \
  484. "xor %%d5, %%d5 \n\t"
  485. #define MULADDC_CORE \
  486. "ld.w %%d0, [%%a2+] \n\t" \
  487. "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \
  488. "ld.w %%d0, [%%a3] \n\t" \
  489. "addx %%d2, %%d2, %%d0 \n\t" \
  490. "addc %%d3, %%d3, 0 \n\t" \
  491. "mov %%d4, %%d3 \n\t" \
  492. "st.w [%%a3+], %%d2 \n\t"
  493. #define MULADDC_STOP \
  494. "st.w %0, %%d4 \n\t" \
  495. "st.a %1, %%a3 \n\t" \
  496. "st.a %2, %%a2 \n\t" \
  497. : "=m" (c), "=m" (d), "=m" (s) \
  498. : "m" (s), "m" (d), "m" (c), "m" (b) \
  499. : "d0", "d1", "e2", "d4", "a2", "a3" \
  500. );
  501. #endif /* TriCore */
  502. #if defined(__arm__)
  503. #if defined(__thumb__) && !defined(__thumb2__)
  504. #define MULADDC_INIT \
  505. asm( \
  506. "ldr r0, %3 \n\t" \
  507. "ldr r1, %4 \n\t" \
  508. "ldr r2, %5 \n\t" \
  509. "ldr r3, %6 \n\t" \
  510. "lsr r7, r3, #16 \n\t" \
  511. "mov r9, r7 \n\t" \
  512. "lsl r7, r3, #16 \n\t" \
  513. "lsr r7, r7, #16 \n\t" \
  514. "mov r8, r7 \n\t"
  515. #define MULADDC_CORE \
  516. "ldmia r0!, {r6} \n\t" \
  517. "lsr r7, r6, #16 \n\t" \
  518. "lsl r6, r6, #16 \n\t" \
  519. "lsr r6, r6, #16 \n\t" \
  520. "mov r4, r8 \n\t" \
  521. "mul r4, r6 \n\t" \
  522. "mov r3, r9 \n\t" \
  523. "mul r6, r3 \n\t" \
  524. "mov r5, r9 \n\t" \
  525. "mul r5, r7 \n\t" \
  526. "mov r3, r8 \n\t" \
  527. "mul r7, r3 \n\t" \
  528. "lsr r3, r6, #16 \n\t" \
  529. "add r5, r5, r3 \n\t" \
  530. "lsr r3, r7, #16 \n\t" \
  531. "add r5, r5, r3 \n\t" \
  532. "add r4, r4, r2 \n\t" \
  533. "mov r2, #0 \n\t" \
  534. "adc r5, r2 \n\t" \
  535. "lsl r3, r6, #16 \n\t" \
  536. "add r4, r4, r3 \n\t" \
  537. "adc r5, r2 \n\t" \
  538. "lsl r3, r7, #16 \n\t" \
  539. "add r4, r4, r3 \n\t" \
  540. "adc r5, r2 \n\t" \
  541. "ldr r3, [r1] \n\t" \
  542. "add r4, r4, r3 \n\t" \
  543. "adc r2, r5 \n\t" \
  544. "stmia r1!, {r4} \n\t"
  545. #define MULADDC_STOP \
  546. "str r2, %0 \n\t" \
  547. "str r1, %1 \n\t" \
  548. "str r0, %2 \n\t" \
  549. : "=m" (c), "=m" (d), "=m" (s) \
  550. : "m" (s), "m" (d), "m" (c), "m" (b) \
  551. : "r0", "r1", "r2", "r3", "r4", "r5", \
  552. "r6", "r7", "r8", "r9", "cc" \
  553. );
  554. #else
  555. #define MULADDC_INIT \
  556. asm( \
  557. "ldr r0, %3 \n\t" \
  558. "ldr r1, %4 \n\t" \
  559. "ldr r2, %5 \n\t" \
  560. "ldr r3, %6 \n\t"
  561. #define MULADDC_CORE \
  562. "ldr r4, [r0], #4 \n\t" \
  563. "mov r5, #0 \n\t" \
  564. "ldr r6, [r1] \n\t" \
  565. "umlal r2, r5, r3, r4 \n\t" \
  566. "adds r7, r6, r2 \n\t" \
  567. "adc r2, r5, #0 \n\t" \
  568. "str r7, [r1], #4 \n\t"
  569. #define MULADDC_STOP \
  570. "str r2, %0 \n\t" \
  571. "str r1, %1 \n\t" \
  572. "str r0, %2 \n\t" \
  573. : "=m" (c), "=m" (d), "=m" (s) \
  574. : "m" (s), "m" (d), "m" (c), "m" (b) \
  575. : "r0", "r1", "r2", "r3", "r4", "r5", \
  576. "r6", "r7", "cc" \
  577. );
  578. #endif /* Thumb */
  579. #endif /* ARMv3 */
  580. #if defined(__alpha__)
  581. #define MULADDC_INIT \
  582. asm( \
  583. "ldq $1, %3 \n\t" \
  584. "ldq $2, %4 \n\t" \
  585. "ldq $3, %5 \n\t" \
  586. "ldq $4, %6 \n\t"
  587. #define MULADDC_CORE \
  588. "ldq $6, 0($1) \n\t" \
  589. "addq $1, 8, $1 \n\t" \
  590. "mulq $6, $4, $7 \n\t" \
  591. "umulh $6, $4, $6 \n\t" \
  592. "addq $7, $3, $7 \n\t" \
  593. "cmpult $7, $3, $3 \n\t" \
  594. "ldq $5, 0($2) \n\t" \
  595. "addq $7, $5, $7 \n\t" \
  596. "cmpult $7, $5, $5 \n\t" \
  597. "stq $7, 0($2) \n\t" \
  598. "addq $2, 8, $2 \n\t" \
  599. "addq $6, $3, $3 \n\t" \
  600. "addq $5, $3, $3 \n\t"
  601. #define MULADDC_STOP \
  602. "stq $3, %0 \n\t" \
  603. "stq $2, %1 \n\t" \
  604. "stq $1, %2 \n\t" \
  605. : "=m" (c), "=m" (d), "=m" (s) \
  606. : "m" (s), "m" (d), "m" (c), "m" (b) \
  607. : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \
  608. );
  609. #endif /* Alpha */
  610. #if defined(__mips__) && !defined(__mips64)
  611. #define MULADDC_INIT \
  612. asm( \
  613. "lw $10, %3 \n\t" \
  614. "lw $11, %4 \n\t" \
  615. "lw $12, %5 \n\t" \
  616. "lw $13, %6 \n\t"
  617. #define MULADDC_CORE \
  618. "lw $14, 0($10) \n\t" \
  619. "multu $13, $14 \n\t" \
  620. "addi $10, $10, 4 \n\t" \
  621. "mflo $14 \n\t" \
  622. "mfhi $9 \n\t" \
  623. "addu $14, $12, $14 \n\t" \
  624. "lw $15, 0($11) \n\t" \
  625. "sltu $12, $14, $12 \n\t" \
  626. "addu $15, $14, $15 \n\t" \
  627. "sltu $14, $15, $14 \n\t" \
  628. "addu $12, $12, $9 \n\t" \
  629. "sw $15, 0($11) \n\t" \
  630. "addu $12, $12, $14 \n\t" \
  631. "addi $11, $11, 4 \n\t"
  632. #define MULADDC_STOP \
  633. "sw $12, %0 \n\t" \
  634. "sw $11, %1 \n\t" \
  635. "sw $10, %2 \n\t" \
  636. : "=m" (c), "=m" (d), "=m" (s) \
  637. : "m" (s), "m" (d), "m" (c), "m" (b) \
  638. : "$9", "$10", "$11", "$12", "$13", "$14", "$15" \
  639. );
  640. #endif /* MIPS */
  641. #endif /* GNUC */
  642. #if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
  643. #define MULADDC_INIT \
  644. __asm mov esi, s \
  645. __asm mov edi, d \
  646. __asm mov ecx, c \
  647. __asm mov ebx, b
  648. #define MULADDC_CORE \
  649. __asm lodsd \
  650. __asm mul ebx \
  651. __asm add eax, ecx \
  652. __asm adc edx, 0 \
  653. __asm add eax, [edi] \
  654. __asm adc edx, 0 \
  655. __asm mov ecx, edx \
  656. __asm stosd
  657. #if defined(MBEDTLS_HAVE_SSE2)
  658. #define EMIT __asm _emit
  659. #define MULADDC_HUIT \
  660. EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
  661. EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
  662. EMIT 0x0F EMIT 0x6E EMIT 0x1F \
  663. EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
  664. EMIT 0x0F EMIT 0x6E EMIT 0x16 \
  665. EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
  666. EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
  667. EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
  668. EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
  669. EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
  670. EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
  671. EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
  672. EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
  673. EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
  674. EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
  675. EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
  676. EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
  677. EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
  678. EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
  679. EMIT 0x0F EMIT 0x7E EMIT 0x0F \
  680. EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
  681. EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
  682. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  683. EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
  684. EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
  685. EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
  686. EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
  687. EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
  688. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
  689. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  690. EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
  691. EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
  692. EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
  693. EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
  694. EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
  695. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
  696. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  697. EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
  698. EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
  699. EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
  700. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
  701. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  702. EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
  703. EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
  704. EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
  705. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
  706. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  707. EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
  708. EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
  709. EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
  710. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
  711. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  712. EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
  713. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
  714. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  715. EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
  716. EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
  717. EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
  718. EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
  719. EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
  720. EMIT 0x0F EMIT 0x7E EMIT 0xC9
  721. #define MULADDC_STOP \
  722. EMIT 0x0F EMIT 0x77 \
  723. __asm mov c, ecx \
  724. __asm mov d, edi \
  725. __asm mov s, esi \
  726. #else
  727. #define MULADDC_STOP \
  728. __asm mov c, ecx \
  729. __asm mov d, edi \
  730. __asm mov s, esi \
  731. #endif /* SSE2 */
  732. #endif /* MSVC */
  733. #endif /* MBEDTLS_HAVE_ASM */
  734. #if !defined(MULADDC_CORE)
  735. #if defined(MBEDTLS_HAVE_UDBL)
  736. #define MULADDC_INIT \
  737. { \
  738. mbedtls_t_udbl r; \
  739. mbedtls_mpi_uint r0, r1;
  740. #define MULADDC_CORE \
  741. r = *(s++) * (mbedtls_t_udbl) b; \
  742. r0 = (mbedtls_mpi_uint) r; \
  743. r1 = (mbedtls_mpi_uint)( r >> biL ); \
  744. r0 += c; r1 += (r0 < c); \
  745. r0 += *d; r1 += (r0 < *d); \
  746. c = r1; *(d++) = r0;
  747. #define MULADDC_STOP \
  748. }
  749. #else
  750. #define MULADDC_INIT \
  751. { \
  752. mbedtls_mpi_uint s0, s1, b0, b1; \
  753. mbedtls_mpi_uint r0, r1, rx, ry; \
  754. b0 = ( b << biH ) >> biH; \
  755. b1 = ( b >> biH );
  756. #define MULADDC_CORE \
  757. s0 = ( *s << biH ) >> biH; \
  758. s1 = ( *s >> biH ); s++; \
  759. rx = s0 * b1; r0 = s0 * b0; \
  760. ry = s1 * b0; r1 = s1 * b1; \
  761. r1 += ( rx >> biH ); \
  762. r1 += ( ry >> biH ); \
  763. rx <<= biH; ry <<= biH; \
  764. r0 += rx; r1 += (r0 < rx); \
  765. r0 += ry; r1 += (r0 < ry); \
  766. r0 += c; r1 += (r0 < c); \
  767. r0 += *d; r1 += (r0 < *d); \
  768. c = r1; *(d++) = r0;
  769. #define MULADDC_STOP \
  770. }
  771. #endif /* C (generic) */
  772. #endif /* C (longlong) */
  773. #endif /* bn_mul.h */