| 1 | /** |
| 2 | * \file bn_mul.h |
| 3 | * |
| 4 | * \brief Multi-precision integer library |
| 5 | */ |
| 6 | /* |
| 7 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved |
| 8 | * SPDX-License-Identifier: GPL-2.0 |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 23 | * |
| 24 | * This file is part of mbed TLS (https://tls.mbed.org) |
| 25 | */ |
| 26 | /* |
| 27 | * Multiply source vector [s] with b, add result |
| 28 | * to destination vector [d] and set carry c. |
| 29 | * |
| 30 | * Currently supports: |
| 31 | * |
| 32 | * . IA-32 (386+) . AMD64 / EM64T |
| 33 | * . IA-32 (SSE2) . Motorola 68000 |
| 34 | * . PowerPC, 32-bit . MicroBlaze |
| 35 | * . PowerPC, 64-bit . TriCore |
| 36 | * . SPARC v8 . ARM v3+ |
| 37 | * . Alpha . MIPS32 |
| 38 | * . C, longlong . C, generic |
| 39 | */ |
| 40 | #ifndef MBEDTLS_BN_MUL_H |
| 41 | #define MBEDTLS_BN_MUL_H |
| 42 | |
| 43 | #include "bignum.h" |
| 44 | |
| 45 | #if defined(MBEDTLS_HAVE_ASM) |
| 46 | |
| 47 | #ifndef asm |
| 48 | #define asm __asm |
| 49 | #endif |
| 50 | |
| 51 | /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */ |
| 52 | #if defined(__GNUC__) && \ |
| 53 | ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 ) |
| 54 | |
| 55 | /* |
| 56 | * Disable use of the i386 assembly code below if option -O0, to disable all |
| 57 | * compiler optimisations, is passed, detected with __OPTIMIZE__ |
| 58 | * This is done as the number of registers used in the assembly code doesn't |
| 59 | * work with the -O0 option. |
| 60 | */ |
| 61 | #if defined(__i386__) && defined(__OPTIMIZE__) |
| 62 | |
| 63 | #define MULADDC_INIT \ |
| 64 | asm( \ |
| 65 | "movl %%ebx, %0 \n\t" \ |
| 66 | "movl %5, %%esi \n\t" \ |
| 67 | "movl %6, %%edi \n\t" \ |
| 68 | "movl %7, %%ecx \n\t" \ |
| 69 | "movl %8, %%ebx \n\t" |
| 70 | |
| 71 | #define MULADDC_CORE \ |
| 72 | "lodsl \n\t" \ |
| 73 | "mull %%ebx \n\t" \ |
| 74 | "addl %%ecx, %%eax \n\t" \ |
| 75 | "adcl $0, %%edx \n\t" \ |
| 76 | "addl (%%edi), %%eax \n\t" \ |
| 77 | "adcl $0, %%edx \n\t" \ |
| 78 | "movl %%edx, %%ecx \n\t" \ |
| 79 | "stosl \n\t" |
| 80 | |
| 81 | #if defined(MBEDTLS_HAVE_SSE2) |
| 82 | |
| 83 | #define MULADDC_HUIT \ |
| 84 | "movd %%ecx, %%mm1 \n\t" \ |
| 85 | "movd %%ebx, %%mm0 \n\t" \ |
| 86 | "movd (%%edi), %%mm3 \n\t" \ |
| 87 | "paddq %%mm3, %%mm1 \n\t" \ |
| 88 | "movd (%%esi), %%mm2 \n\t" \ |
| 89 | "pmuludq %%mm0, %%mm2 \n\t" \ |
| 90 | "movd 4(%%esi), %%mm4 \n\t" \ |
| 91 | "pmuludq %%mm0, %%mm4 \n\t" \ |
| 92 | "movd 8(%%esi), %%mm6 \n\t" \ |
| 93 | "pmuludq %%mm0, %%mm6 \n\t" \ |
| 94 | "movd 12(%%esi), %%mm7 \n\t" \ |
| 95 | "pmuludq %%mm0, %%mm7 \n\t" \ |
| 96 | "paddq %%mm2, %%mm1 \n\t" \ |
| 97 | "movd 4(%%edi), %%mm3 \n\t" \ |
| 98 | "paddq %%mm4, %%mm3 \n\t" \ |
| 99 | "movd 8(%%edi), %%mm5 \n\t" \ |
| 100 | "paddq %%mm6, %%mm5 \n\t" \ |
| 101 | "movd 12(%%edi), %%mm4 \n\t" \ |
| 102 | "paddq %%mm4, %%mm7 \n\t" \ |
| 103 | "movd %%mm1, (%%edi) \n\t" \ |
| 104 | "movd 16(%%esi), %%mm2 \n\t" \ |
| 105 | "pmuludq %%mm0, %%mm2 \n\t" \ |
| 106 | "psrlq $32, %%mm1 \n\t" \ |
| 107 | "movd 20(%%esi), %%mm4 \n\t" \ |
| 108 | "pmuludq %%mm0, %%mm4 \n\t" \ |
| 109 | "paddq %%mm3, %%mm1 \n\t" \ |
| 110 | "movd 24(%%esi), %%mm6 \n\t" \ |
| 111 | "pmuludq %%mm0, %%mm6 \n\t" \ |
| 112 | "movd %%mm1, 4(%%edi) \n\t" \ |
| 113 | "psrlq $32, %%mm1 \n\t" \ |
| 114 | "movd 28(%%esi), %%mm3 \n\t" \ |
| 115 | "pmuludq %%mm0, %%mm3 \n\t" \ |
| 116 | "paddq %%mm5, %%mm1 \n\t" \ |
| 117 | "movd 16(%%edi), %%mm5 \n\t" \ |
| 118 | "paddq %%mm5, %%mm2 \n\t" \ |
| 119 | "movd %%mm1, 8(%%edi) \n\t" \ |
| 120 | "psrlq $32, %%mm1 \n\t" \ |
| 121 | "paddq %%mm7, %%mm1 \n\t" \ |
| 122 | "movd 20(%%edi), %%mm5 \n\t" \ |
| 123 | "paddq %%mm5, %%mm4 \n\t" \ |
| 124 | "movd %%mm1, 12(%%edi) \n\t" \ |
| 125 | "psrlq $32, %%mm1 \n\t" \ |
| 126 | "paddq %%mm2, %%mm1 \n\t" \ |
| 127 | "movd 24(%%edi), %%mm5 \n\t" \ |
| 128 | "paddq %%mm5, %%mm6 \n\t" \ |
| 129 | "movd %%mm1, 16(%%edi) \n\t" \ |
| 130 | "psrlq $32, %%mm1 \n\t" \ |
| 131 | "paddq %%mm4, %%mm1 \n\t" \ |
| 132 | "movd 28(%%edi), %%mm5 \n\t" \ |
| 133 | "paddq %%mm5, %%mm3 \n\t" \ |
| 134 | "movd %%mm1, 20(%%edi) \n\t" \ |
| 135 | "psrlq $32, %%mm1 \n\t" \ |
| 136 | "paddq %%mm6, %%mm1 \n\t" \ |
| 137 | "movd %%mm1, 24(%%edi) \n\t" \ |
| 138 | "psrlq $32, %%mm1 \n\t" \ |
| 139 | "paddq %%mm3, %%mm1 \n\t" \ |
| 140 | "movd %%mm1, 28(%%edi) \n\t" \ |
| 141 | "addl $32, %%edi \n\t" \ |
| 142 | "addl $32, %%esi \n\t" \ |
| 143 | "psrlq $32, %%mm1 \n\t" \ |
| 144 | "movd %%mm1, %%ecx \n\t" |
| 145 | |
| 146 | #define MULADDC_STOP \ |
| 147 | "emms \n\t" \ |
| 148 | "movl %4, %%ebx \n\t" \ |
| 149 | "movl %%ecx, %1 \n\t" \ |
| 150 | "movl %%edi, %2 \n\t" \ |
| 151 | "movl %%esi, %3 \n\t" \ |
| 152 | : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ |
| 153 | : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 154 | : "eax", "ebx", "ecx", "edx", "esi", "edi" \ |
| 155 | ); |
| 156 | |
| 157 | #else |
| 158 | |
| 159 | #define MULADDC_STOP \ |
| 160 | "movl %4, %%ebx \n\t" \ |
| 161 | "movl %%ecx, %1 \n\t" \ |
| 162 | "movl %%edi, %2 \n\t" \ |
| 163 | "movl %%esi, %3 \n\t" \ |
| 164 | : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ |
| 165 | : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 166 | : "eax", "ebx", "ecx", "edx", "esi", "edi" \ |
| 167 | ); |
| 168 | #endif /* SSE2 */ |
| 169 | #endif /* i386 */ |
| 170 | |
| 171 | #if defined(__amd64__) || defined (__x86_64__) |
| 172 | |
| 173 | #define MULADDC_INIT \ |
| 174 | asm( \ |
| 175 | "xorq %%r8, %%r8 \n\t" |
| 176 | |
| 177 | #define MULADDC_CORE \ |
| 178 | "movq (%%rsi), %%rax \n\t" \ |
| 179 | "mulq %%rbx \n\t" \ |
| 180 | "addq $8, %%rsi \n\t" \ |
| 181 | "addq %%rcx, %%rax \n\t" \ |
| 182 | "movq %%r8, %%rcx \n\t" \ |
| 183 | "adcq $0, %%rdx \n\t" \ |
| 184 | "nop \n\t" \ |
| 185 | "addq %%rax, (%%rdi) \n\t" \ |
| 186 | "adcq %%rdx, %%rcx \n\t" \ |
| 187 | "addq $8, %%rdi \n\t" |
| 188 | |
| 189 | #define MULADDC_STOP \ |
| 190 | : "+c" (c), "+D" (d), "+S" (s) \ |
| 191 | : "b" (b) \ |
| 192 | : "rax", "rdx", "r8" \ |
| 193 | ); |
| 194 | |
| 195 | #endif /* AMD64 */ |
| 196 | |
| 197 | #if defined(__mc68020__) || defined(__mcpu32__) |
| 198 | |
| 199 | #define MULADDC_INIT \ |
| 200 | asm( \ |
| 201 | "movl %3, %%a2 \n\t" \ |
| 202 | "movl %4, %%a3 \n\t" \ |
| 203 | "movl %5, %%d3 \n\t" \ |
| 204 | "movl %6, %%d2 \n\t" \ |
| 205 | "moveq #0, %%d0 \n\t" |
| 206 | |
| 207 | #define MULADDC_CORE \ |
| 208 | "movel %%a2@+, %%d1 \n\t" \ |
| 209 | "mulul %%d2, %%d4:%%d1 \n\t" \ |
| 210 | "addl %%d3, %%d1 \n\t" \ |
| 211 | "addxl %%d0, %%d4 \n\t" \ |
| 212 | "moveq #0, %%d3 \n\t" \ |
| 213 | "addl %%d1, %%a3@+ \n\t" \ |
| 214 | "addxl %%d4, %%d3 \n\t" |
| 215 | |
| 216 | #define MULADDC_STOP \ |
| 217 | "movl %%d3, %0 \n\t" \ |
| 218 | "movl %%a3, %1 \n\t" \ |
| 219 | "movl %%a2, %2 \n\t" \ |
| 220 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 221 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 222 | : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \ |
| 223 | ); |
| 224 | |
| 225 | #define MULADDC_HUIT \ |
| 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 | "movel %%a2@+, %%d1 \n\t" \ |
| 257 | "mulul %%d2, %%d4:%%d1 \n\t" \ |
| 258 | "addxl %%d3, %%d1 \n\t" \ |
| 259 | "addxl %%d0, %%d4 \n\t" \ |
| 260 | "addl %%d1, %%a3@+ \n\t" \ |
| 261 | "movel %%a2@+, %%d1 \n\t" \ |
| 262 | "mulul %%d2, %%d3:%%d1 \n\t" \ |
| 263 | "addxl %%d4, %%d1 \n\t" \ |
| 264 | "addxl %%d0, %%d3 \n\t" \ |
| 265 | "addl %%d1, %%a3@+ \n\t" \ |
| 266 | "addxl %%d0, %%d3 \n\t" |
| 267 | |
| 268 | #endif /* MC68000 */ |
| 269 | |
| 270 | #if defined(__powerpc64__) || defined(__ppc64__) |
| 271 | |
| 272 | #if defined(__MACH__) && defined(__APPLE__) |
| 273 | |
| 274 | #define MULADDC_INIT \ |
| 275 | asm( \ |
| 276 | "ld r3, %3 \n\t" \ |
| 277 | "ld r4, %4 \n\t" \ |
| 278 | "ld r5, %5 \n\t" \ |
| 279 | "ld r6, %6 \n\t" \ |
| 280 | "addi r3, r3, -8 \n\t" \ |
| 281 | "addi r4, r4, -8 \n\t" \ |
| 282 | "addic r5, r5, 0 \n\t" |
| 283 | |
| 284 | #define MULADDC_CORE \ |
| 285 | "ldu r7, 8(r3) \n\t" \ |
| 286 | "mulld r8, r7, r6 \n\t" \ |
| 287 | "mulhdu r9, r7, r6 \n\t" \ |
| 288 | "adde r8, r8, r5 \n\t" \ |
| 289 | "ld r7, 8(r4) \n\t" \ |
| 290 | "addze r5, r9 \n\t" \ |
| 291 | "addc r8, r8, r7 \n\t" \ |
| 292 | "stdu r8, 8(r4) \n\t" |
| 293 | |
| 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 | |
| 306 | |
| 307 | #else /* __MACH__ && __APPLE__ */ |
| 308 | |
| 309 | #define MULADDC_INIT \ |
| 310 | asm( \ |
| 311 | "ld %%r3, %3 \n\t" \ |
| 312 | "ld %%r4, %4 \n\t" \ |
| 313 | "ld %%r5, %5 \n\t" \ |
| 314 | "ld %%r6, %6 \n\t" \ |
| 315 | "addi %%r3, %%r3, -8 \n\t" \ |
| 316 | "addi %%r4, %%r4, -8 \n\t" \ |
| 317 | "addic %%r5, %%r5, 0 \n\t" |
| 318 | |
| 319 | #define MULADDC_CORE \ |
| 320 | "ldu %%r7, 8(%%r3) \n\t" \ |
| 321 | "mulld %%r8, %%r7, %%r6 \n\t" \ |
| 322 | "mulhdu %%r9, %%r7, %%r6 \n\t" \ |
| 323 | "adde %%r8, %%r8, %%r5 \n\t" \ |
| 324 | "ld %%r7, 8(%%r4) \n\t" \ |
| 325 | "addze %%r5, %%r9 \n\t" \ |
| 326 | "addc %%r8, %%r8, %%r7 \n\t" \ |
| 327 | "stdu %%r8, 8(%%r4) \n\t" |
| 328 | |
| 329 | #define MULADDC_STOP \ |
| 330 | "addze %%r5, %%r5 \n\t" \ |
| 331 | "addi %%r4, %%r4, 8 \n\t" \ |
| 332 | "addi %%r3, %%r3, 8 \n\t" \ |
| 333 | "std %%r5, %0 \n\t" \ |
| 334 | "std %%r4, %1 \n\t" \ |
| 335 | "std %%r3, %2 \n\t" \ |
| 336 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 337 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 338 | : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ |
| 339 | ); |
| 340 | |
| 341 | #endif /* __MACH__ && __APPLE__ */ |
| 342 | |
| 343 | #elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */ |
| 344 | |
| 345 | #if defined(__MACH__) && defined(__APPLE__) |
| 346 | |
| 347 | #define MULADDC_INIT \ |
| 348 | asm( \ |
| 349 | "lwz r3, %3 \n\t" \ |
| 350 | "lwz r4, %4 \n\t" \ |
| 351 | "lwz r5, %5 \n\t" \ |
| 352 | "lwz r6, %6 \n\t" \ |
| 353 | "addi r3, r3, -4 \n\t" \ |
| 354 | "addi r4, r4, -4 \n\t" \ |
| 355 | "addic r5, r5, 0 \n\t" |
| 356 | |
| 357 | #define MULADDC_CORE \ |
| 358 | "lwzu r7, 4(r3) \n\t" \ |
| 359 | "mullw r8, r7, r6 \n\t" \ |
| 360 | "mulhwu r9, r7, r6 \n\t" \ |
| 361 | "adde r8, r8, r5 \n\t" \ |
| 362 | "lwz r7, 4(r4) \n\t" \ |
| 363 | "addze r5, r9 \n\t" \ |
| 364 | "addc r8, r8, r7 \n\t" \ |
| 365 | "stwu r8, 4(r4) \n\t" |
| 366 | |
| 367 | #define MULADDC_STOP \ |
| 368 | "addze r5, r5 \n\t" \ |
| 369 | "addi r4, r4, 4 \n\t" \ |
| 370 | "addi r3, r3, 4 \n\t" \ |
| 371 | "stw r5, %0 \n\t" \ |
| 372 | "stw r4, %1 \n\t" \ |
| 373 | "stw r3, %2 \n\t" \ |
| 374 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 375 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 376 | : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ |
| 377 | ); |
| 378 | |
| 379 | #else /* __MACH__ && __APPLE__ */ |
| 380 | |
| 381 | #define MULADDC_INIT \ |
| 382 | asm( \ |
| 383 | "lwz %%r3, %3 \n\t" \ |
| 384 | "lwz %%r4, %4 \n\t" \ |
| 385 | "lwz %%r5, %5 \n\t" \ |
| 386 | "lwz %%r6, %6 \n\t" \ |
| 387 | "addi %%r3, %%r3, -4 \n\t" \ |
| 388 | "addi %%r4, %%r4, -4 \n\t" \ |
| 389 | "addic %%r5, %%r5, 0 \n\t" |
| 390 | |
| 391 | #define MULADDC_CORE \ |
| 392 | "lwzu %%r7, 4(%%r3) \n\t" \ |
| 393 | "mullw %%r8, %%r7, %%r6 \n\t" \ |
| 394 | "mulhwu %%r9, %%r7, %%r6 \n\t" \ |
| 395 | "adde %%r8, %%r8, %%r5 \n\t" \ |
| 396 | "lwz %%r7, 4(%%r4) \n\t" \ |
| 397 | "addze %%r5, %%r9 \n\t" \ |
| 398 | "addc %%r8, %%r8, %%r7 \n\t" \ |
| 399 | "stwu %%r8, 4(%%r4) \n\t" |
| 400 | |
| 401 | #define MULADDC_STOP \ |
| 402 | "addze %%r5, %%r5 \n\t" \ |
| 403 | "addi %%r4, %%r4, 4 \n\t" \ |
| 404 | "addi %%r3, %%r3, 4 \n\t" \ |
| 405 | "stw %%r5, %0 \n\t" \ |
| 406 | "stw %%r4, %1 \n\t" \ |
| 407 | "stw %%r3, %2 \n\t" \ |
| 408 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 409 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 410 | : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ |
| 411 | ); |
| 412 | |
| 413 | #endif /* __MACH__ && __APPLE__ */ |
| 414 | |
| 415 | #endif /* PPC32 */ |
| 416 | |
| 417 | /* |
| 418 | * The Sparc(64) assembly is reported to be broken. |
| 419 | * Disable it for now, until we're able to fix it. |
| 420 | */ |
| 421 | #if 0 && defined(__sparc__) |
| 422 | #if defined(__sparc64__) |
| 423 | |
| 424 | #define MULADDC_INIT \ |
| 425 | asm( \ |
| 426 | "ldx %3, %%o0 \n\t" \ |
| 427 | "ldx %4, %%o1 \n\t" \ |
| 428 | "ld %5, %%o2 \n\t" \ |
| 429 | "ld %6, %%o3 \n\t" |
| 430 | |
| 431 | #define MULADDC_CORE \ |
| 432 | "ld [%%o0], %%o4 \n\t" \ |
| 433 | "inc 4, %%o0 \n\t" \ |
| 434 | "ld [%%o1], %%o5 \n\t" \ |
| 435 | "umul %%o3, %%o4, %%o4 \n\t" \ |
| 436 | "addcc %%o4, %%o2, %%o4 \n\t" \ |
| 437 | "rd %%y, %%g1 \n\t" \ |
| 438 | "addx %%g1, 0, %%g1 \n\t" \ |
| 439 | "addcc %%o4, %%o5, %%o4 \n\t" \ |
| 440 | "st %%o4, [%%o1] \n\t" \ |
| 441 | "addx %%g1, 0, %%o2 \n\t" \ |
| 442 | "inc 4, %%o1 \n\t" |
| 443 | |
| 444 | #define MULADDC_STOP \ |
| 445 | "st %%o2, %0 \n\t" \ |
| 446 | "stx %%o1, %1 \n\t" \ |
| 447 | "stx %%o0, %2 \n\t" \ |
| 448 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 449 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 450 | : "g1", "o0", "o1", "o2", "o3", "o4", \ |
| 451 | "o5" \ |
| 452 | ); |
| 453 | |
| 454 | #else /* __sparc64__ */ |
| 455 | |
| 456 | #define MULADDC_INIT \ |
| 457 | asm( \ |
| 458 | "ld %3, %%o0 \n\t" \ |
| 459 | "ld %4, %%o1 \n\t" \ |
| 460 | "ld %5, %%o2 \n\t" \ |
| 461 | "ld %6, %%o3 \n\t" |
| 462 | |
| 463 | #define MULADDC_CORE \ |
| 464 | "ld [%%o0], %%o4 \n\t" \ |
| 465 | "inc 4, %%o0 \n\t" \ |
| 466 | "ld [%%o1], %%o5 \n\t" \ |
| 467 | "umul %%o3, %%o4, %%o4 \n\t" \ |
| 468 | "addcc %%o4, %%o2, %%o4 \n\t" \ |
| 469 | "rd %%y, %%g1 \n\t" \ |
| 470 | "addx %%g1, 0, %%g1 \n\t" \ |
| 471 | "addcc %%o4, %%o5, %%o4 \n\t" \ |
| 472 | "st %%o4, [%%o1] \n\t" \ |
| 473 | "addx %%g1, 0, %%o2 \n\t" \ |
| 474 | "inc 4, %%o1 \n\t" |
| 475 | |
| 476 | #define MULADDC_STOP \ |
| 477 | "st %%o2, %0 \n\t" \ |
| 478 | "st %%o1, %1 \n\t" \ |
| 479 | "st %%o0, %2 \n\t" \ |
| 480 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 481 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 482 | : "g1", "o0", "o1", "o2", "o3", "o4", \ |
| 483 | "o5" \ |
| 484 | ); |
| 485 | |
| 486 | #endif /* __sparc64__ */ |
| 487 | #endif /* __sparc__ */ |
| 488 | |
| 489 | #if defined(__microblaze__) || defined(microblaze) |
| 490 | |
| 491 | #define MULADDC_INIT \ |
| 492 | asm( \ |
| 493 | "lwi r3, %3 \n\t" \ |
| 494 | "lwi r4, %4 \n\t" \ |
| 495 | "lwi r5, %5 \n\t" \ |
| 496 | "lwi r6, %6 \n\t" \ |
| 497 | "andi r7, r6, 0xffff \n\t" \ |
| 498 | "bsrli r6, r6, 16 \n\t" |
| 499 | |
| 500 | #define MULADDC_CORE \ |
| 501 | "lhui r8, r3, 0 \n\t" \ |
| 502 | "addi r3, r3, 2 \n\t" \ |
| 503 | "lhui r9, r3, 0 \n\t" \ |
| 504 | "addi r3, r3, 2 \n\t" \ |
| 505 | "mul r10, r9, r6 \n\t" \ |
| 506 | "mul r11, r8, r7 \n\t" \ |
| 507 | "mul r12, r9, r7 \n\t" \ |
| 508 | "mul r13, r8, r6 \n\t" \ |
| 509 | "bsrli r8, r10, 16 \n\t" \ |
| 510 | "bsrli r9, r11, 16 \n\t" \ |
| 511 | "add r13, r13, r8 \n\t" \ |
| 512 | "add r13, r13, r9 \n\t" \ |
| 513 | "bslli r10, r10, 16 \n\t" \ |
| 514 | "bslli r11, r11, 16 \n\t" \ |
| 515 | "add r12, r12, r10 \n\t" \ |
| 516 | "addc r13, r13, r0 \n\t" \ |
| 517 | "add r12, r12, r11 \n\t" \ |
| 518 | "addc r13, r13, r0 \n\t" \ |
| 519 | "lwi r10, r4, 0 \n\t" \ |
| 520 | "add r12, r12, r10 \n\t" \ |
| 521 | "addc r13, r13, r0 \n\t" \ |
| 522 | "add r12, r12, r5 \n\t" \ |
| 523 | "addc r5, r13, r0 \n\t" \ |
| 524 | "swi r12, r4, 0 \n\t" \ |
| 525 | "addi r4, r4, 4 \n\t" |
| 526 | |
| 527 | #define MULADDC_STOP \ |
| 528 | "swi r5, %0 \n\t" \ |
| 529 | "swi r4, %1 \n\t" \ |
| 530 | "swi r3, %2 \n\t" \ |
| 531 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 532 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 533 | : "r3", "r4", "r5", "r6", "r7", "r8", \ |
| 534 | "r9", "r10", "r11", "r12", "r13" \ |
| 535 | ); |
| 536 | |
| 537 | #endif /* MicroBlaze */ |
| 538 | |
| 539 | #if defined(__tricore__) |
| 540 | |
| 541 | #define MULADDC_INIT \ |
| 542 | asm( \ |
| 543 | "ld.a %%a2, %3 \n\t" \ |
| 544 | "ld.a %%a3, %4 \n\t" \ |
| 545 | "ld.w %%d4, %5 \n\t" \ |
| 546 | "ld.w %%d1, %6 \n\t" \ |
| 547 | "xor %%d5, %%d5 \n\t" |
| 548 | |
| 549 | #define MULADDC_CORE \ |
| 550 | "ld.w %%d0, [%%a2+] \n\t" \ |
| 551 | "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \ |
| 552 | "ld.w %%d0, [%%a3] \n\t" \ |
| 553 | "addx %%d2, %%d2, %%d0 \n\t" \ |
| 554 | "addc %%d3, %%d3, 0 \n\t" \ |
| 555 | "mov %%d4, %%d3 \n\t" \ |
| 556 | "st.w [%%a3+], %%d2 \n\t" |
| 557 | |
| 558 | #define MULADDC_STOP \ |
| 559 | "st.w %0, %%d4 \n\t" \ |
| 560 | "st.a %1, %%a3 \n\t" \ |
| 561 | "st.a %2, %%a2 \n\t" \ |
| 562 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 563 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 564 | : "d0", "d1", "e2", "d4", "a2", "a3" \ |
| 565 | ); |
| 566 | |
| 567 | #endif /* TriCore */ |
| 568 | |
| 569 | /* |
| 570 | * gcc -O0 by default uses r7 for the frame pointer, so it complains about our |
| 571 | * use of r7 below, unless -fomit-frame-pointer is passed. Unfortunately, |
| 572 | * passing that option is not easy when building with yotta. |
| 573 | * |
| 574 | * On the other hand, -fomit-frame-pointer is implied by any -Ox options with |
| 575 | * x !=0, which we can detect using __OPTIMIZE__ (which is also defined by |
| 576 | * clang and armcc5 under the same conditions). |
| 577 | * |
| 578 | * So, only use the optimized assembly below for optimized build, which avoids |
| 579 | * the build error and is pretty reasonable anyway. |
| 580 | */ |
| 581 | #if defined(__GNUC__) && !defined(__OPTIMIZE__) |
| 582 | #define MULADDC_CANNOT_USE_R7 |
| 583 | #endif |
| 584 | |
| 585 | #if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7) |
| 586 | |
| 587 | #if defined(__thumb__) && !defined(__thumb2__) |
| 588 | |
| 589 | #define MULADDC_INIT \ |
| 590 | asm( \ |
| 591 | "ldr r0, %3 \n\t" \ |
| 592 | "ldr r1, %4 \n\t" \ |
| 593 | "ldr r2, %5 \n\t" \ |
| 594 | "ldr r3, %6 \n\t" \ |
| 595 | "lsr r7, r3, #16 \n\t" \ |
| 596 | "mov r9, r7 \n\t" \ |
| 597 | "lsl r7, r3, #16 \n\t" \ |
| 598 | "lsr r7, r7, #16 \n\t" \ |
| 599 | "mov r8, r7 \n\t" |
| 600 | |
| 601 | #define MULADDC_CORE \ |
| 602 | "ldmia r0!, {r6} \n\t" \ |
| 603 | "lsr r7, r6, #16 \n\t" \ |
| 604 | "lsl r6, r6, #16 \n\t" \ |
| 605 | "lsr r6, r6, #16 \n\t" \ |
| 606 | "mov r4, r8 \n\t" \ |
| 607 | "mul r4, r6 \n\t" \ |
| 608 | "mov r3, r9 \n\t" \ |
| 609 | "mul r6, r3 \n\t" \ |
| 610 | "mov r5, r9 \n\t" \ |
| 611 | "mul r5, r7 \n\t" \ |
| 612 | "mov r3, r8 \n\t" \ |
| 613 | "mul r7, r3 \n\t" \ |
| 614 | "lsr r3, r6, #16 \n\t" \ |
| 615 | "add r5, r5, r3 \n\t" \ |
| 616 | "lsr r3, r7, #16 \n\t" \ |
| 617 | "add r5, r5, r3 \n\t" \ |
| 618 | "add r4, r4, r2 \n\t" \ |
| 619 | "mov r2, #0 \n\t" \ |
| 620 | "adc r5, r2 \n\t" \ |
| 621 | "lsl r3, r6, #16 \n\t" \ |
| 622 | "add r4, r4, r3 \n\t" \ |
| 623 | "adc r5, r2 \n\t" \ |
| 624 | "lsl r3, r7, #16 \n\t" \ |
| 625 | "add r4, r4, r3 \n\t" \ |
| 626 | "adc r5, r2 \n\t" \ |
| 627 | "ldr r3, [r1] \n\t" \ |
| 628 | "add r4, r4, r3 \n\t" \ |
| 629 | "adc r2, r5 \n\t" \ |
| 630 | "stmia r1!, {r4} \n\t" |
| 631 | |
| 632 | #define MULADDC_STOP \ |
| 633 | "str r2, %0 \n\t" \ |
| 634 | "str r1, %1 \n\t" \ |
| 635 | "str r0, %2 \n\t" \ |
| 636 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 637 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 638 | : "r0", "r1", "r2", "r3", "r4", "r5", \ |
| 639 | "r6", "r7", "r8", "r9", "cc" \ |
| 640 | ); |
| 641 | |
| 642 | #else |
| 643 | |
| 644 | #define MULADDC_INIT \ |
| 645 | asm( \ |
| 646 | "ldr r0, %3 \n\t" \ |
| 647 | "ldr r1, %4 \n\t" \ |
| 648 | "ldr r2, %5 \n\t" \ |
| 649 | "ldr r3, %6 \n\t" |
| 650 | |
| 651 | #define MULADDC_CORE \ |
| 652 | "ldr r4, [r0], #4 \n\t" \ |
| 653 | "mov r5, #0 \n\t" \ |
| 654 | "ldr r6, [r1] \n\t" \ |
| 655 | "umlal r2, r5, r3, r4 \n\t" \ |
| 656 | "adds r7, r6, r2 \n\t" \ |
| 657 | "adc r2, r5, #0 \n\t" \ |
| 658 | "str r7, [r1], #4 \n\t" |
| 659 | |
| 660 | #define MULADDC_STOP \ |
| 661 | "str r2, %0 \n\t" \ |
| 662 | "str r1, %1 \n\t" \ |
| 663 | "str r0, %2 \n\t" \ |
| 664 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 665 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 666 | : "r0", "r1", "r2", "r3", "r4", "r5", \ |
| 667 | "r6", "r7", "cc" \ |
| 668 | ); |
| 669 | |
| 670 | #endif /* Thumb */ |
| 671 | |
| 672 | #endif /* ARMv3 */ |
| 673 | |
| 674 | #if defined(__alpha__) |
| 675 | |
| 676 | #define MULADDC_INIT \ |
| 677 | asm( \ |
| 678 | "ldq $1, %3 \n\t" \ |
| 679 | "ldq $2, %4 \n\t" \ |
| 680 | "ldq $3, %5 \n\t" \ |
| 681 | "ldq $4, %6 \n\t" |
| 682 | |
| 683 | #define MULADDC_CORE \ |
| 684 | "ldq $6, 0($1) \n\t" \ |
| 685 | "addq $1, 8, $1 \n\t" \ |
| 686 | "mulq $6, $4, $7 \n\t" \ |
| 687 | "umulh $6, $4, $6 \n\t" \ |
| 688 | "addq $7, $3, $7 \n\t" \ |
| 689 | "cmpult $7, $3, $3 \n\t" \ |
| 690 | "ldq $5, 0($2) \n\t" \ |
| 691 | "addq $7, $5, $7 \n\t" \ |
| 692 | "cmpult $7, $5, $5 \n\t" \ |
| 693 | "stq $7, 0($2) \n\t" \ |
| 694 | "addq $2, 8, $2 \n\t" \ |
| 695 | "addq $6, $3, $3 \n\t" \ |
| 696 | "addq $5, $3, $3 \n\t" |
| 697 | |
| 698 | #define MULADDC_STOP \ |
| 699 | "stq $3, %0 \n\t" \ |
| 700 | "stq $2, %1 \n\t" \ |
| 701 | "stq $1, %2 \n\t" \ |
| 702 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 703 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 704 | : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \ |
| 705 | ); |
| 706 | #endif /* Alpha */ |
| 707 | |
| 708 | #if defined(__mips__) && !defined(__mips64) |
| 709 | |
| 710 | #define MULADDC_INIT \ |
| 711 | asm( \ |
| 712 | "lw $10, %3 \n\t" \ |
| 713 | "lw $11, %4 \n\t" \ |
| 714 | "lw $12, %5 \n\t" \ |
| 715 | "lw $13, %6 \n\t" |
| 716 | |
| 717 | #define MULADDC_CORE \ |
| 718 | "lw $14, 0($10) \n\t" \ |
| 719 | "multu $13, $14 \n\t" \ |
| 720 | "addi $10, $10, 4 \n\t" \ |
| 721 | "mflo $14 \n\t" \ |
| 722 | "mfhi $9 \n\t" \ |
| 723 | "addu $14, $12, $14 \n\t" \ |
| 724 | "lw $15, 0($11) \n\t" \ |
| 725 | "sltu $12, $14, $12 \n\t" \ |
| 726 | "addu $15, $14, $15 \n\t" \ |
| 727 | "sltu $14, $15, $14 \n\t" \ |
| 728 | "addu $12, $12, $9 \n\t" \ |
| 729 | "sw $15, 0($11) \n\t" \ |
| 730 | "addu $12, $12, $14 \n\t" \ |
| 731 | "addi $11, $11, 4 \n\t" |
| 732 | |
| 733 | #define MULADDC_STOP \ |
| 734 | "sw $12, %0 \n\t" \ |
| 735 | "sw $11, %1 \n\t" \ |
| 736 | "sw $10, %2 \n\t" \ |
| 737 | : "=m" (c), "=m" (d), "=m" (s) \ |
| 738 | : "m" (s), "m" (d), "m" (c), "m" (b) \ |
| 739 | : "$9", "$10", "$11", "$12", "$13", "$14", "$15" \ |
| 740 | ); |
| 741 | |
| 742 | #endif /* MIPS */ |
| 743 | #endif /* GNUC */ |
| 744 | |
| 745 | #if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) |
| 746 | |
| 747 | #define MULADDC_INIT \ |
| 748 | __asm mov esi, s \ |
| 749 | __asm mov edi, d \ |
| 750 | __asm mov ecx, c \ |
| 751 | __asm mov ebx, b |
| 752 | |
| 753 | #define MULADDC_CORE \ |
| 754 | __asm lodsd \ |
| 755 | __asm mul ebx \ |
| 756 | __asm add eax, ecx \ |
| 757 | __asm adc edx, 0 \ |
| 758 | __asm add eax, [edi] \ |
| 759 | __asm adc edx, 0 \ |
| 760 | __asm mov ecx, edx \ |
| 761 | __asm stosd |
| 762 | |
| 763 | #if defined(MBEDTLS_HAVE_SSE2) |
| 764 | |
| 765 | #define EMIT __asm _emit |
| 766 | |
| 767 | #define MULADDC_HUIT \ |
| 768 | EMIT 0x0F EMIT 0x6E EMIT 0xC9 \ |
| 769 | EMIT 0x0F EMIT 0x6E EMIT 0xC3 \ |
| 770 | EMIT 0x0F EMIT 0x6E EMIT 0x1F \ |
| 771 | EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ |
| 772 | EMIT 0x0F EMIT 0x6E EMIT 0x16 \ |
| 773 | EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ |
| 774 | EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \ |
| 775 | EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ |
| 776 | EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \ |
| 777 | EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ |
| 778 | EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \ |
| 779 | EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \ |
| 780 | EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ |
| 781 | EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \ |
| 782 | EMIT 0x0F EMIT 0xD4 EMIT 0xDC \ |
| 783 | EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \ |
| 784 | EMIT 0x0F EMIT 0xD4 EMIT 0xEE \ |
| 785 | EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \ |
| 786 | EMIT 0x0F EMIT 0xD4 EMIT 0xFC \ |
| 787 | EMIT 0x0F EMIT 0x7E EMIT 0x0F \ |
| 788 | EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \ |
| 789 | EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ |
| 790 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 791 | EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \ |
| 792 | EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ |
| 793 | EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ |
| 794 | EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \ |
| 795 | EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ |
| 796 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \ |
| 797 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 798 | EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \ |
| 799 | EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \ |
| 800 | EMIT 0x0F EMIT 0xD4 EMIT 0xCD \ |
| 801 | EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \ |
| 802 | EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \ |
| 803 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \ |
| 804 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 805 | EMIT 0x0F EMIT 0xD4 EMIT 0xCF \ |
| 806 | EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \ |
| 807 | EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \ |
| 808 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \ |
| 809 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 810 | EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ |
| 811 | EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \ |
| 812 | EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \ |
| 813 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \ |
| 814 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 815 | EMIT 0x0F EMIT 0xD4 EMIT 0xCC \ |
| 816 | EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \ |
| 817 | EMIT 0x0F EMIT 0xD4 EMIT 0xDD \ |
| 818 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \ |
| 819 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 820 | EMIT 0x0F EMIT 0xD4 EMIT 0xCE \ |
| 821 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \ |
| 822 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 823 | EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ |
| 824 | EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \ |
| 825 | EMIT 0x83 EMIT 0xC7 EMIT 0x20 \ |
| 826 | EMIT 0x83 EMIT 0xC6 EMIT 0x20 \ |
| 827 | EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ |
| 828 | EMIT 0x0F EMIT 0x7E EMIT 0xC9 |
| 829 | |
| 830 | #define MULADDC_STOP \ |
| 831 | EMIT 0x0F EMIT 0x77 \ |
| 832 | __asm mov c, ecx \ |
| 833 | __asm mov d, edi \ |
| 834 | __asm mov s, esi \ |
| 835 | |
| 836 | #else |
| 837 | |
| 838 | #define MULADDC_STOP \ |
| 839 | __asm mov c, ecx \ |
| 840 | __asm mov d, edi \ |
| 841 | __asm mov s, esi \ |
| 842 | |
| 843 | #endif /* SSE2 */ |
| 844 | #endif /* MSVC */ |
| 845 | |
| 846 | #endif /* MBEDTLS_HAVE_ASM */ |
| 847 | |
| 848 | #if !defined(MULADDC_CORE) |
| 849 | #if defined(MBEDTLS_HAVE_UDBL) |
| 850 | |
| 851 | #define MULADDC_INIT \ |
| 852 | { \ |
| 853 | mbedtls_t_udbl r; \ |
| 854 | mbedtls_mpi_uint r0, r1; |
| 855 | |
| 856 | #define MULADDC_CORE \ |
| 857 | r = *(s++) * (mbedtls_t_udbl) b; \ |
| 858 | r0 = (mbedtls_mpi_uint) r; \ |
| 859 | r1 = (mbedtls_mpi_uint)( r >> biL ); \ |
| 860 | r0 += c; r1 += (r0 < c); \ |
| 861 | r0 += *d; r1 += (r0 < *d); \ |
| 862 | c = r1; *(d++) = r0; |
| 863 | |
| 864 | #define MULADDC_STOP \ |
| 865 | } |
| 866 | |
| 867 | #else |
| 868 | #define MULADDC_INIT \ |
| 869 | { \ |
| 870 | mbedtls_mpi_uint s0, s1, b0, b1; \ |
| 871 | mbedtls_mpi_uint r0, r1, rx, ry; \ |
| 872 | b0 = ( b << biH ) >> biH; \ |
| 873 | b1 = ( b >> biH ); |
| 874 | |
| 875 | #define MULADDC_CORE \ |
| 876 | s0 = ( *s << biH ) >> biH; \ |
| 877 | s1 = ( *s >> biH ); s++; \ |
| 878 | rx = s0 * b1; r0 = s0 * b0; \ |
| 879 | ry = s1 * b0; r1 = s1 * b1; \ |
| 880 | r1 += ( rx >> biH ); \ |
| 881 | r1 += ( ry >> biH ); \ |
| 882 | rx <<= biH; ry <<= biH; \ |
| 883 | r0 += rx; r1 += (r0 < rx); \ |
| 884 | r0 += ry; r1 += (r0 < ry); \ |
| 885 | r0 += c; r1 += (r0 < c); \ |
| 886 | r0 += *d; r1 += (r0 < *d); \ |
| 887 | c = r1; *(d++) = r0; |
| 888 | |
| 889 | #define MULADDC_STOP \ |
| 890 | } |
| 891 | |
| 892 | #endif /* C (generic) */ |
| 893 | #endif /* C (longlong) */ |
| 894 | |
| 895 | #endif /* bn_mul.h */ |