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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 */ |