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[proxmark3-svn] / common / polarssl / bn_mul.h
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OM		 1/**
2 * \file bn_mul.h
3 *
4 * \brief Multi-precision integer library
5 *
6 * Copyright (C) 2006-2010, Brainspark B.V.
7 *
8 * This file is part of PolarSSL (http://www.polarssl.org)
9 * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
10 *
11 * All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 */
27/*
28 * Multiply source vector [s] with b, add result
29 * to destination vector [d] and set carry c.
30 *
31 * Currently supports:
32 *
33 * . IA-32 (386+) . AMD64 / EM64T
34 * . IA-32 (SSE2) . Motorola 68000
35 * . PowerPC, 32-bit . MicroBlaze
36 * . PowerPC, 64-bit . TriCore
37 * . SPARC v8 . ARM v3+
38 * . Alpha . MIPS32
39 * . C, longlong . C, generic
40 */
41#ifndef POLARSSL_BN_MUL_H
42#define POLARSSL_BN_MUL_H
43
44#include "bignum.h"
45
46#if defined(POLARSSL_HAVE_ASM)
47
48#if defined(__GNUC__)
49#if defined(__i386__)
50
51#define MULADDC_INIT \
52 asm( " \
53 movl %%ebx, %0; \
54 movl %5, %%esi; \
55 movl %6, %%edi; \
56 movl %7, %%ecx; \
57 movl %8, %%ebx; \
58 "
59
60#define MULADDC_CORE \
61 " \
62 lodsl; \
63 mull %%ebx; \
64 addl %%ecx, %%eax; \
65 adcl $0, %%edx; \
66 addl (%%edi), %%eax; \
67 adcl $0, %%edx; \
68 movl %%edx, %%ecx; \
69 stosl; \
70 "
71
72#if defined(POLARSSL_HAVE_SSE2)
73
74#define MULADDC_HUIT \
75 " \
76 movd %%ecx, %%mm1; \
77 movd %%ebx, %%mm0; \
78 movd (%%edi), %%mm3; \
79 paddq %%mm3, %%mm1; \
80 movd (%%esi), %%mm2; \
81 pmuludq %%mm0, %%mm2; \
82 movd 4(%%esi), %%mm4; \
83 pmuludq %%mm0, %%mm4; \
84 movd 8(%%esi), %%mm6; \
85 pmuludq %%mm0, %%mm6; \
86 movd 12(%%esi), %%mm7; \
87 pmuludq %%mm0, %%mm7; \
88 paddq %%mm2, %%mm1; \
89 movd 4(%%edi), %%mm3; \
90 paddq %%mm4, %%mm3; \
91 movd 8(%%edi), %%mm5; \
92 paddq %%mm6, %%mm5; \
93 movd 12(%%edi), %%mm4; \
94 paddq %%mm4, %%mm7; \
95 movd %%mm1, (%%edi); \
96 movd 16(%%esi), %%mm2; \
97 pmuludq %%mm0, %%mm2; \
98 psrlq $32, %%mm1; \
99 movd 20(%%esi), %%mm4; \
100 pmuludq %%mm0, %%mm4; \
101 paddq %%mm3, %%mm1; \
102 movd 24(%%esi), %%mm6; \
103 pmuludq %%mm0, %%mm6; \
104 movd %%mm1, 4(%%edi); \
105 psrlq $32, %%mm1; \
106 movd 28(%%esi), %%mm3; \
107 pmuludq %%mm0, %%mm3; \
108 paddq %%mm5, %%mm1; \
109 movd 16(%%edi), %%mm5; \
110 paddq %%mm5, %%mm2; \
111 movd %%mm1, 8(%%edi); \
112 psrlq $32, %%mm1; \
113 paddq %%mm7, %%mm1; \
114 movd 20(%%edi), %%mm5; \
115 paddq %%mm5, %%mm4; \
116 movd %%mm1, 12(%%edi); \
117 psrlq $32, %%mm1; \
118 paddq %%mm2, %%mm1; \
119 movd 24(%%edi), %%mm5; \
120 paddq %%mm5, %%mm6; \
121 movd %%mm1, 16(%%edi); \
122 psrlq $32, %%mm1; \
123 paddq %%mm4, %%mm1; \
124 movd 28(%%edi), %%mm5; \
125 paddq %%mm5, %%mm3; \
126 movd %%mm1, 20(%%edi); \
127 psrlq $32, %%mm1; \
128 paddq %%mm6, %%mm1; \
129 movd %%mm1, 24(%%edi); \
130 psrlq $32, %%mm1; \
131 paddq %%mm3, %%mm1; \
132 movd %%mm1, 28(%%edi); \
133 addl $32, %%edi; \
134 addl $32, %%esi; \
135 psrlq $32, %%mm1; \
136 movd %%mm1, %%ecx; \
137 "
138
139#define MULADDC_STOP \
140 " \
141 emms; \
142 movl %4, %%ebx; \
143 movl %%ecx, %1; \
144 movl %%edi, %2; \
145 movl %%esi, %3; \
146 " \
147 : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
148 : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
149 : "eax", "ecx", "edx", "esi", "edi" \
150 );
151
152#else
153
154#define MULADDC_STOP \
155 " \
156 movl %4, %%ebx; \
157 movl %%ecx, %1; \
158 movl %%edi, %2; \
159 movl %%esi, %3; \
160 " \
161 : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
162 : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
163 : "eax", "ecx", "edx", "esi", "edi" \
164 );
165#endif /* SSE2 */
166#endif /* i386 */
167
168#if defined(__amd64__) || defined (__x86_64__)
169
170#define MULADDC_INIT \
171 asm( "movq %0, %%rsi " :: "m" (s)); \
172 asm( "movq %0, %%rdi " :: "m" (d)); \
173 asm( "movq %0, %%rcx " :: "m" (c)); \
174 asm( "movq %0, %%rbx " :: "m" (b)); \
175 asm( "xorq %r8, %r8 " );
176
177#define MULADDC_CORE \
178 asm( "movq (%rsi),%rax " ); \
179 asm( "mulq %rbx " ); \
180 asm( "addq $8, %rsi " ); \
181 asm( "addq %rcx, %rax " ); \
182 asm( "movq %r8, %rcx " ); \
183 asm( "adcq $0, %rdx " ); \
184 asm( "nop " ); \
185 asm( "addq %rax, (%rdi) " ); \
186 asm( "adcq %rdx, %rcx " ); \
187 asm( "addq $8, %rdi " );
188
189#define MULADDC_STOP \
190 asm( "movq %%rcx, %0 " : "=m" (c)); \
191 asm( "movq %%rdi, %0 " : "=m" (d)); \
192 asm( "movq %%rsi, %0 " : "=m" (s) :: \
193 "rax", "rcx", "rdx", "rbx", "rsi", "rdi", "r8" );
194
195#endif /* AMD64 */
196
197#if defined(__mc68020__) || defined(__mcpu32__)
198
199#define MULADDC_INIT \
200 asm( "movl %0, %%a2 " :: "m" (s)); \
201 asm( "movl %0, %%a3 " :: "m" (d)); \
202 asm( "movl %0, %%d3 " :: "m" (c)); \
203 asm( "movl %0, %%d2 " :: "m" (b)); \
204 asm( "moveq #0, %d0 " );
205
206#define MULADDC_CORE \
207 asm( "movel %a2@+, %d1 " ); \
208 asm( "mulul %d2, %d4:%d1 " ); \
209 asm( "addl %d3, %d1 " ); \
210 asm( "addxl %d0, %d4 " ); \
211 asm( "moveq #0, %d3 " ); \
212 asm( "addl %d1, %a3@+ " ); \
213 asm( "addxl %d4, %d3 " );
214
215#define MULADDC_STOP \
216 asm( "movl %%d3, %0 " : "=m" (c)); \
217 asm( "movl %%a3, %0 " : "=m" (d)); \
218 asm( "movl %%a2, %0 " : "=m" (s) :: \
219 "d0", "d1", "d2", "d3", "d4", "a2", "a3" );
220
221#define MULADDC_HUIT \
222 asm( "movel %a2@+, %d1 " ); \
223 asm( "mulul %d2, %d4:%d1 " ); \
224 asm( "addxl %d3, %d1 " ); \
225 asm( "addxl %d0, %d4 " ); \
226 asm( "addl %d1, %a3@+ " ); \
227 asm( "movel %a2@+, %d1 " ); \
228 asm( "mulul %d2, %d3:%d1 " ); \
229 asm( "addxl %d4, %d1 " ); \
230 asm( "addxl %d0, %d3 " ); \
231 asm( "addl %d1, %a3@+ " ); \
232 asm( "movel %a2@+, %d1 " ); \
233 asm( "mulul %d2, %d4:%d1 " ); \
234 asm( "addxl %d3, %d1 " ); \
235 asm( "addxl %d0, %d4 " ); \
236 asm( "addl %d1, %a3@+ " ); \
237 asm( "movel %a2@+, %d1 " ); \
238 asm( "mulul %d2, %d3:%d1 " ); \
239 asm( "addxl %d4, %d1 " ); \
240 asm( "addxl %d0, %d3 " ); \
241 asm( "addl %d1, %a3@+ " ); \
242 asm( "movel %a2@+, %d1 " ); \
243 asm( "mulul %d2, %d4:%d1 " ); \
244 asm( "addxl %d3, %d1 " ); \
245 asm( "addxl %d0, %d4 " ); \
246 asm( "addl %d1, %a3@+ " ); \
247 asm( "movel %a2@+, %d1 " ); \
248 asm( "mulul %d2, %d3:%d1 " ); \
249 asm( "addxl %d4, %d1 " ); \
250 asm( "addxl %d0, %d3 " ); \
251 asm( "addl %d1, %a3@+ " ); \
252 asm( "movel %a2@+, %d1 " ); \
253 asm( "mulul %d2, %d4:%d1 " ); \
254 asm( "addxl %d3, %d1 " ); \
255 asm( "addxl %d0, %d4 " ); \
256 asm( "addl %d1, %a3@+ " ); \
257 asm( "movel %a2@+, %d1 " ); \
258 asm( "mulul %d2, %d3:%d1 " ); \
259 asm( "addxl %d4, %d1 " ); \
260 asm( "addxl %d0, %d3 " ); \
261 asm( "addl %d1, %a3@+ " ); \
262 asm( "addxl %d0, %d3 " );
263
264#endif /* MC68000 */
265
266#if defined(__powerpc__) || defined(__ppc__)
267#if defined(__powerpc64__) || defined(__ppc64__)
268
269#if defined(__MACH__) && defined(__APPLE__)
270
271#define MULADDC_INIT \
272 asm( "ld r3, %0 " :: "m" (s)); \
273 asm( "ld r4, %0 " :: "m" (d)); \
274 asm( "ld r5, %0 " :: "m" (c)); \
275 asm( "ld r6, %0 " :: "m" (b)); \
276 asm( "addi r3, r3, -8 " ); \
277 asm( "addi r4, r4, -8 " ); \
278 asm( "addic r5, r5, 0 " );
279
280#define MULADDC_CORE \
281 asm( "ldu r7, 8(r3) " ); \
282 asm( "mulld r8, r7, r6 " ); \
283 asm( "mulhdu r9, r7, r6 " ); \
284 asm( "adde r8, r8, r5 " ); \
285 asm( "ld r7, 8(r4) " ); \
286 asm( "addze r5, r9 " ); \
287 asm( "addc r8, r8, r7 " ); \
288 asm( "stdu r8, 8(r4) " );
289
290#define MULADDC_STOP \
291 asm( "addze r5, r5 " ); \
292 asm( "addi r4, r4, 8 " ); \
293 asm( "addi r3, r3, 8 " ); \
294 asm( "std r5, %0 " : "=m" (c)); \
295 asm( "std r4, %0 " : "=m" (d)); \
296 asm( "std r3, %0 " : "=m" (s) :: \
297 "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
298
299#else
300
301#define MULADDC_INIT \
302 asm( "ld %%r3, %0 " :: "m" (s)); \
303 asm( "ld %%r4, %0 " :: "m" (d)); \
304 asm( "ld %%r5, %0 " :: "m" (c)); \
305 asm( "ld %%r6, %0 " :: "m" (b)); \
306 asm( "addi %r3, %r3, -8 " ); \
307 asm( "addi %r4, %r4, -8 " ); \
308 asm( "addic %r5, %r5, 0 " );
309
310#define MULADDC_CORE \
311 asm( "ldu %r7, 8(%r3) " ); \
312 asm( "mulld %r8, %r7, %r6 " ); \
313 asm( "mulhdu %r9, %r7, %r6 " ); \
314 asm( "adde %r8, %r8, %r5 " ); \
315 asm( "ld %r7, 8(%r4) " ); \
316 asm( "addze %r5, %r9 " ); \
317 asm( "addc %r8, %r8, %r7 " ); \
318 asm( "stdu %r8, 8(%r4) " );
319
320#define MULADDC_STOP \
321 asm( "addze %r5, %r5 " ); \
322 asm( "addi %r4, %r4, 8 " ); \
323 asm( "addi %r3, %r3, 8 " ); \
324 asm( "std %%r5, %0 " : "=m" (c)); \
325 asm( "std %%r4, %0 " : "=m" (d)); \
326 asm( "std %%r3, %0 " : "=m" (s) :: \
327 "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
328
329#endif
330
331#else /* PPC32 */
332
333#if defined(__MACH__) && defined(__APPLE__)
334
335#define MULADDC_INIT \
336 asm( "lwz r3, %0 " :: "m" (s)); \
337 asm( "lwz r4, %0 " :: "m" (d)); \
338 asm( "lwz r5, %0 " :: "m" (c)); \
339 asm( "lwz r6, %0 " :: "m" (b)); \
340 asm( "addi r3, r3, -4 " ); \
341 asm( "addi r4, r4, -4 " ); \
342 asm( "addic r5, r5, 0 " );
343
344#define MULADDC_CORE \
345 asm( "lwzu r7, 4(r3) " ); \
346 asm( "mullw r8, r7, r6 " ); \
347 asm( "mulhwu r9, r7, r6 " ); \
348 asm( "adde r8, r8, r5 " ); \
349 asm( "lwz r7, 4(r4) " ); \
350 asm( "addze r5, r9 " ); \
351 asm( "addc r8, r8, r7 " ); \
352 asm( "stwu r8, 4(r4) " );
353
354#define MULADDC_STOP \
355 asm( "addze r5, r5 " ); \
356 asm( "addi r4, r4, 4 " ); \
357 asm( "addi r3, r3, 4 " ); \
358 asm( "stw r5, %0 " : "=m" (c)); \
359 asm( "stw r4, %0 " : "=m" (d)); \
360 asm( "stw r3, %0 " : "=m" (s) :: \
361 "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
362
363#else
364
365#define MULADDC_INIT \
366 asm( "lwz %%r3, %0 " :: "m" (s)); \
367 asm( "lwz %%r4, %0 " :: "m" (d)); \
368 asm( "lwz %%r5, %0 " :: "m" (c)); \
369 asm( "lwz %%r6, %0 " :: "m" (b)); \
370 asm( "addi %r3, %r3, -4 " ); \
371 asm( "addi %r4, %r4, -4 " ); \
372 asm( "addic %r5, %r5, 0 " );
373
374#define MULADDC_CORE \
375 asm( "lwzu %r7, 4(%r3) " ); \
376 asm( "mullw %r8, %r7, %r6 " ); \
377 asm( "mulhwu %r9, %r7, %r6 " ); \
378 asm( "adde %r8, %r8, %r5 " ); \
379 asm( "lwz %r7, 4(%r4) " ); \
380 asm( "addze %r5, %r9 " ); \
381 asm( "addc %r8, %r8, %r7 " ); \
382 asm( "stwu %r8, 4(%r4) " );
383
384#define MULADDC_STOP \
385 asm( "addze %r5, %r5 " ); \
386 asm( "addi %r4, %r4, 4 " ); \
387 asm( "addi %r3, %r3, 4 " ); \
388 asm( "stw %%r5, %0 " : "=m" (c)); \
389 asm( "stw %%r4, %0 " : "=m" (d)); \
390 asm( "stw %%r3, %0 " : "=m" (s) :: \
391 "r3", "r4", "r5", "r6", "r7", "r8", "r9" );
392
393#endif
394
395#endif /* PPC32 */
396#endif /* PPC64 */
397
398#if defined(__sparc__) && defined(__sparc64__)
399
400#define MULADDC_INIT \
401 asm( \
402 " \
403 ldx %3, %%o0; \
404 ldx %4, %%o1; \
405 ld %5, %%o2; \
406 ld %6, %%o3; \
407 "
408
409#define MULADDC_CORE \
410 " \
411 ld [%%o0], %%o4; \
412 inc 4, %%o0; \
413 ld [%%o1], %%o5; \
414 umul %%o3, %%o4, %%o4; \
415 addcc %%o4, %%o2, %%o4; \
416 rd %%y, %%g1; \
417 addx %%g1, 0, %%g1; \
418 addcc %%o4, %%o5, %%o4; \
419 st %%o4, [%%o1]; \
420 addx %%g1, 0, %%o2; \
421 inc 4, %%o1; \
422 "
423
424#define MULADDC_STOP \
425 " \
426 st %%o2, %0; \
427 stx %%o1, %1; \
428 stx %%o0, %2; \
429 " \
430 : "=m" (c), "=m" (d), "=m" (s) \
431 : "m" (s), "m" (d), "m" (c), "m" (b) \
432 : "g1", "o0", "o1", "o2", "o3", "o4", \
433 "o5" \
434 );
435#endif /* SPARCv9 */
436
437#if defined(__sparc__) && !defined(__sparc64__)
438
439#define MULADDC_INIT \
440 asm( \
441 " \
442 ld %3, %%o0; \
443 ld %4, %%o1; \
444 ld %5, %%o2; \
445 ld %6, %%o3; \
446 "
447
448#define MULADDC_CORE \
449 " \
450 ld [%%o0], %%o4; \
451 inc 4, %%o0; \
452 ld [%%o1], %%o5; \
453 umul %%o3, %%o4, %%o4; \
454 addcc %%o4, %%o2, %%o4; \
455 rd %%y, %%g1; \
456 addx %%g1, 0, %%g1; \
457 addcc %%o4, %%o5, %%o4; \
458 st %%o4, [%%o1]; \
459 addx %%g1, 0, %%o2; \
460 inc 4, %%o1; \
461 "
462
463#define MULADDC_STOP \
464 " \
465 st %%o2, %0; \
466 st %%o1, %1; \
467 st %%o0, %2; \
468 " \
469 : "=m" (c), "=m" (d), "=m" (s) \
470 : "m" (s), "m" (d), "m" (c), "m" (b) \
471 : "g1", "o0", "o1", "o2", "o3", "o4", \
472 "o5" \
473 );
474
475#endif /* SPARCv8 */
476
477#if defined(__microblaze__) || defined(microblaze)
478
479#define MULADDC_INIT \
480 asm( "lwi r3, %0 " :: "m" (s)); \
481 asm( "lwi r4, %0 " :: "m" (d)); \
482 asm( "lwi r5, %0 " :: "m" (c)); \
483 asm( "lwi r6, %0 " :: "m" (b)); \
484 asm( "andi r7, r6, 0xffff" ); \
485 asm( "bsrli r6, r6, 16 " );
486
487#define MULADDC_CORE \
488 asm( "lhui r8, r3, 0 " ); \
489 asm( "addi r3, r3, 2 " ); \
490 asm( "lhui r9, r3, 0 " ); \
491 asm( "addi r3, r3, 2 " ); \
492 asm( "mul r10, r9, r6 " ); \
493 asm( "mul r11, r8, r7 " ); \
494 asm( "mul r12, r9, r7 " ); \
495 asm( "mul r13, r8, r6 " ); \
496 asm( "bsrli r8, r10, 16 " ); \
497 asm( "bsrli r9, r11, 16 " ); \
498 asm( "add r13, r13, r8 " ); \
499 asm( "add r13, r13, r9 " ); \
500 asm( "bslli r10, r10, 16 " ); \
501 asm( "bslli r11, r11, 16 " ); \
502 asm( "add r12, r12, r10 " ); \
503 asm( "addc r13, r13, r0 " ); \
504 asm( "add r12, r12, r11 " ); \
505 asm( "addc r13, r13, r0 " ); \
506 asm( "lwi r10, r4, 0 " ); \
507 asm( "add r12, r12, r10 " ); \
508 asm( "addc r13, r13, r0 " ); \
509 asm( "add r12, r12, r5 " ); \
510 asm( "addc r5, r13, r0 " ); \
511 asm( "swi r12, r4, 0 " ); \
512 asm( "addi r4, r4, 4 " );
513
514#define MULADDC_STOP \
515 asm( "swi r5, %0 " : "=m" (c)); \
516 asm( "swi r4, %0 " : "=m" (d)); \
517 asm( "swi r3, %0 " : "=m" (s) :: \
518 "r3", "r4" , "r5" , "r6" , "r7" , "r8" , \
519 "r9", "r10", "r11", "r12", "r13" );
520
521#endif /* MicroBlaze */
522
523#if defined(__tricore__)
524
525#define MULADDC_INIT \
526 asm( "ld.a %%a2, %0 " :: "m" (s)); \
527 asm( "ld.a %%a3, %0 " :: "m" (d)); \
528 asm( "ld.w %%d4, %0 " :: "m" (c)); \
529 asm( "ld.w %%d1, %0 " :: "m" (b)); \
530 asm( "xor %d5, %d5 " );
531
532#define MULADDC_CORE \
533 asm( "ld.w %d0, [%a2+] " ); \
534 asm( "madd.u %e2, %e4, %d0, %d1 " ); \
535 asm( "ld.w %d0, [%a3] " ); \
536 asm( "addx %d2, %d2, %d0 " ); \
537 asm( "addc %d3, %d3, 0 " ); \
538 asm( "mov %d4, %d3 " ); \
539 asm( "st.w [%a3+], %d2 " );
540
541#define MULADDC_STOP \
542 asm( "st.w %0, %%d4 " : "=m" (c)); \
543 asm( "st.a %0, %%a3 " : "=m" (d)); \
544 asm( "st.a %0, %%a2 " : "=m" (s) :: \
545 "d0", "d1", "e2", "d4", "a2", "a3" );
546
547#endif /* TriCore */
548
549#if defined(__arm__)
550
551#if defined(__thumb__) && !defined(__thumb2__)
552
553#define MULADDC_INIT \
554 asm( \
555 " \
556 ldr r0, %3; \
557 ldr r1, %4; \
558 ldr r2, %5; \
559 ldr r3, %6; \
560 lsr r7, r3, #16; \
561 mov r9, r7; \
562 lsl r7, r3, #16; \
563 lsr r7, r7, #16; \
564 mov r8, r7; \
565 "
566
567#define MULADDC_CORE \
568 " \
569 ldmia r0!, {r6}; \
570 lsr r7, r6, #16; \
571 lsl r6, r6, #16; \
572 lsr r6, r6, #16; \
573 mov r4, r8; \
574 mul r4, r6; \
575 mov r3, r9; \
576 mul r6, r3; \
577 mov r5, r9; \
578 mul r5, r7; \
579 mov r3, r8; \
580 mul r7, r3; \
581 lsr r3, r6, #16; \
582 add r5, r5, r3; \
583 lsr r3, r7, #16; \
584 add r5, r5, r3; \
585 add r4, r4, r2; \
586 mov r2, #0; \
587 adc r5, r2; \
588 lsl r3, r6, #16; \
589 add r4, r4, r3; \
590 adc r5, r2; \
591 lsl r3, r7, #16; \
592 add r4, r4, r3; \
593 adc r5, r2; \
594 ldr r3, [r1]; \
595 add r4, r4, r3; \
596 adc r2, r5; \
597 stmia r1!, {r4}; \
598 "
599
600#define MULADDC_STOP \
601 " \
602 str r2, %0; \
603 str r1, %1; \
604 str r0, %2; \
605 " \
606 : "=m" (c), "=m" (d), "=m" (s) \
607 : "m" (s), "m" (d), "m" (c), "m" (b) \
608 : "r0", "r1", "r2", "r3", "r4", "r5", \
609 "r6", "r7", "r8", "r9", "cc" \
610 );
611
612#else
613
614#define MULADDC_INIT \
615 asm( \
616 " \
617 ldr r0, %3; \
618 ldr r1, %4; \
619 ldr r2, %5; \
620 ldr r3, %6; \
621 "
622
623#define MULADDC_CORE \
624 " \
625 ldr r4, [r0], #4; \
626 mov r5, #0; \
627 ldr r6, [r1]; \
628 umlal r2, r5, r3, r4; \
629 adds r7, r6, r2; \
630 adc r2, r5, #0; \
631 str r7, [r1], #4; \
632 "
633
634#define MULADDC_STOP \
635 " \
636 str r2, %0; \
637 str r1, %1; \
638 str r0, %2; \
639 " \
640 : "=m" (c), "=m" (d), "=m" (s) \
641 : "m" (s), "m" (d), "m" (c), "m" (b) \
642 : "r0", "r1", "r2", "r3", "r4", "r5", \
643 "r6", "r7", "cc" \
644 );
645
646#endif /* Thumb */
647
648#endif /* ARMv3 */
649
650#if defined(__alpha__)
651
652#define MULADDC_INIT \
653 asm( "ldq $1, %0 " :: "m" (s)); \
654 asm( "ldq $2, %0 " :: "m" (d)); \
655 asm( "ldq $3, %0 " :: "m" (c)); \
656 asm( "ldq $4, %0 " :: "m" (b));
657
658#define MULADDC_CORE \
659 asm( "ldq $6, 0($1) " ); \
660 asm( "addq $1, 8, $1 " ); \
661 asm( "mulq $6, $4, $7 " ); \
662 asm( "umulh $6, $4, $6 " ); \
663 asm( "addq $7, $3, $7 " ); \
664 asm( "cmpult $7, $3, $3 " ); \
665 asm( "ldq $5, 0($2) " ); \
666 asm( "addq $7, $5, $7 " ); \
667 asm( "cmpult $7, $5, $5 " ); \
668 asm( "stq $7, 0($2) " ); \
669 asm( "addq $2, 8, $2 " ); \
670 asm( "addq $6, $3, $3 " ); \
671 asm( "addq $5, $3, $3 " );
672
673#define MULADDC_STOP \
674 asm( "stq $3, %0 " : "=m" (c)); \
675 asm( "stq $2, %0 " : "=m" (d)); \
676 asm( "stq $1, %0 " : "=m" (s) :: \
677 "$1", "$2", "$3", "$4", "$5", "$6", "$7" );
678
679#endif /* Alpha */
680
681#if defined(__mips__)
682
683#define MULADDC_INIT \
684 asm( "lw $10, %0 " :: "m" (s)); \
685 asm( "lw $11, %0 " :: "m" (d)); \
686 asm( "lw $12, %0 " :: "m" (c)); \
687 asm( "lw $13, %0 " :: "m" (b));
688
689#define MULADDC_CORE \
690 asm( "lw $14, 0($10) " ); \
691 asm( "multu $13, $14 " ); \
692 asm( "addi $10, $10, 4 " ); \
693 asm( "mflo $14 " ); \
694 asm( "mfhi $9 " ); \
695 asm( "addu $14, $12, $14 " ); \
696 asm( "lw $15, 0($11) " ); \
697 asm( "sltu $12, $14, $12 " ); \
698 asm( "addu $15, $14, $15 " ); \
699 asm( "sltu $14, $15, $14 " ); \
700 asm( "addu $12, $12, $9 " ); \
701 asm( "sw $15, 0($11) " ); \
702 asm( "addu $12, $12, $14 " ); \
703 asm( "addi $11, $11, 4 " );
704
705#define MULADDC_STOP \
706 asm( "sw $12, %0 " : "=m" (c)); \
707 asm( "sw $11, %0 " : "=m" (d)); \
708 asm( "sw $10, %0 " : "=m" (s) :: \
709 "$9", "$10", "$11", "$12", "$13", "$14", "$15" );
710
711#endif /* MIPS */
712#endif /* GNUC */
713
714#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
715
716#define MULADDC_INIT \
717 __asm mov esi, s \
718 __asm mov edi, d \
719 __asm mov ecx, c \
720 __asm mov ebx, b
721
722#define MULADDC_CORE \
723 __asm lodsd \
724 __asm mul ebx \
725 __asm add eax, ecx \
726 __asm adc edx, 0 \
727 __asm add eax, [edi] \
728 __asm adc edx, 0 \
729 __asm mov ecx, edx \
730 __asm stosd
731
732#if defined(POLARSSL_HAVE_SSE2)
733
734#define EMIT __asm _emit
735
736#define MULADDC_HUIT \
737 EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
738 EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
739 EMIT 0x0F EMIT 0x6E EMIT 0x1F \
740 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
741 EMIT 0x0F EMIT 0x6E EMIT 0x16 \
742 EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
743 EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
744 EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
745 EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
746 EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
747 EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
748 EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
749 EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
750 EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
751 EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
752 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
753 EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
754 EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
755 EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
756 EMIT 0x0F EMIT 0x7E EMIT 0x0F \
757 EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
758 EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
759 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
760 EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
761 EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
762 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
763 EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
764 EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
765 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
766 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
767 EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
768 EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
769 EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
770 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
771 EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
772 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
773 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
774 EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
775 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
776 EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
777 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
778 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
779 EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
780 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
781 EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
782 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
783 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
784 EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
785 EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
786 EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
787 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
788 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
789 EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
790 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
791 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
792 EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
793 EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
794 EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
795 EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
796 EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
797 EMIT 0x0F EMIT 0x7E EMIT 0xC9
798
799#define MULADDC_STOP \
800 EMIT 0x0F EMIT 0x77 \
801 __asm mov c, ecx \
802 __asm mov d, edi \
803 __asm mov s, esi \
804
805#else
806
807#define MULADDC_STOP \
808 __asm mov c, ecx \
809 __asm mov d, edi \
810 __asm mov s, esi \
811
812#endif /* SSE2 */
813#endif /* MSVC */
814
815#endif /* POLARSSL_HAVE_ASM */
816
817#if !defined(MULADDC_CORE)
818#if defined(POLARSSL_HAVE_UDBL)
819
820#define MULADDC_INIT \
821{ \
822 t_udbl r; \
823 t_uint r0, r1;
824
825#define MULADDC_CORE \
826 r = *(s++) * (t_udbl) b; \
827 r0 = r; \
828 r1 = r >> biL; \
829 r0 += c; r1 += (r0 < c); \
830 r0 += *d; r1 += (r0 < *d); \
831 c = r1; *(d++) = r0;
832
833#define MULADDC_STOP \
834}
835
836#else
837#define MULADDC_INIT \
838{ \
839 t_uint s0, s1, b0, b1; \
840 t_uint r0, r1, rx, ry; \
841 b0 = ( b << biH ) >> biH; \
842 b1 = ( b >> biH );
843
844#define MULADDC_CORE \
845 s0 = ( *s << biH ) >> biH; \
846 s1 = ( *s >> biH ); s++; \
847 rx = s0 * b1; r0 = s0 * b0; \
848 ry = s1 * b0; r1 = s1 * b1; \
849 r1 += ( rx >> biH ); \
850 r1 += ( ry >> biH ); \
851 rx <<= biH; ry <<= biH; \
852 r0 += rx; r1 += (r0 < rx); \
853 r0 += ry; r1 += (r0 < ry); \
854 r0 += c; r1 += (r0 < c); \
855 r0 += *d; r1 += (r0 < *d); \
856 c = r1; *(d++) = r0;
857
858#define MULADDC_STOP \
859}
860
861#endif /* C (generic) */
862#endif /* C (longlong) */
863
864#endif /* bn_mul.h */
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