mbed TLS v1.3.14
bn_mul.h
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1 
24 /*
25  * Multiply source vector [s] with b, add result
26  * to destination vector [d] and set carry c.
27  *
28  * Currently supports:
29  *
30  * . IA-32 (386+) . AMD64 / EM64T
31  * . IA-32 (SSE2) . Motorola 68000
32  * . PowerPC, 32-bit . MicroBlaze
33  * . PowerPC, 64-bit . TriCore
34  * . SPARC v8 . ARM v3+
35  * . Alpha . MIPS32
36  * . C, longlong . C, generic
37  */
38 #ifndef POLARSSL_BN_MUL_H
39 #define POLARSSL_BN_MUL_H
40 
41 #include "bignum.h"
42 
43 #if defined(POLARSSL_HAVE_ASM)
44 
45 /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
46 #if defined(__GNUC__) && \
47  ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
48 #if defined(__i386__)
49 
50 #define MULADDC_INIT \
51  asm( \
52  "movl %%ebx, %0 \n\t" \
53  "movl %5, %%esi \n\t" \
54  "movl %6, %%edi \n\t" \
55  "movl %7, %%ecx \n\t" \
56  "movl %8, %%ebx \n\t"
57 
58 #define MULADDC_CORE \
59  "lodsl \n\t" \
60  "mull %%ebx \n\t" \
61  "addl %%ecx, %%eax \n\t" \
62  "adcl $0, %%edx \n\t" \
63  "addl (%%edi), %%eax \n\t" \
64  "adcl $0, %%edx \n\t" \
65  "movl %%edx, %%ecx \n\t" \
66  "stosl \n\t"
67 
68 #if defined(POLARSSL_HAVE_SSE2)
69 
70 #define MULADDC_HUIT \
71  "movd %%ecx, %%mm1 \n\t" \
72  "movd %%ebx, %%mm0 \n\t" \
73  "movd (%%edi), %%mm3 \n\t" \
74  "paddq %%mm3, %%mm1 \n\t" \
75  "movd (%%esi), %%mm2 \n\t" \
76  "pmuludq %%mm0, %%mm2 \n\t" \
77  "movd 4(%%esi), %%mm4 \n\t" \
78  "pmuludq %%mm0, %%mm4 \n\t" \
79  "movd 8(%%esi), %%mm6 \n\t" \
80  "pmuludq %%mm0, %%mm6 \n\t" \
81  "movd 12(%%esi), %%mm7 \n\t" \
82  "pmuludq %%mm0, %%mm7 \n\t" \
83  "paddq %%mm2, %%mm1 \n\t" \
84  "movd 4(%%edi), %%mm3 \n\t" \
85  "paddq %%mm4, %%mm3 \n\t" \
86  "movd 8(%%edi), %%mm5 \n\t" \
87  "paddq %%mm6, %%mm5 \n\t" \
88  "movd 12(%%edi), %%mm4 \n\t" \
89  "paddq %%mm4, %%mm7 \n\t" \
90  "movd %%mm1, (%%edi) \n\t" \
91  "movd 16(%%esi), %%mm2 \n\t" \
92  "pmuludq %%mm0, %%mm2 \n\t" \
93  "psrlq $32, %%mm1 \n\t" \
94  "movd 20(%%esi), %%mm4 \n\t" \
95  "pmuludq %%mm0, %%mm4 \n\t" \
96  "paddq %%mm3, %%mm1 \n\t" \
97  "movd 24(%%esi), %%mm6 \n\t" \
98  "pmuludq %%mm0, %%mm6 \n\t" \
99  "movd %%mm1, 4(%%edi) \n\t" \
100  "psrlq $32, %%mm1 \n\t" \
101  "movd 28(%%esi), %%mm3 \n\t" \
102  "pmuludq %%mm0, %%mm3 \n\t" \
103  "paddq %%mm5, %%mm1 \n\t" \
104  "movd 16(%%edi), %%mm5 \n\t" \
105  "paddq %%mm5, %%mm2 \n\t" \
106  "movd %%mm1, 8(%%edi) \n\t" \
107  "psrlq $32, %%mm1 \n\t" \
108  "paddq %%mm7, %%mm1 \n\t" \
109  "movd 20(%%edi), %%mm5 \n\t" \
110  "paddq %%mm5, %%mm4 \n\t" \
111  "movd %%mm1, 12(%%edi) \n\t" \
112  "psrlq $32, %%mm1 \n\t" \
113  "paddq %%mm2, %%mm1 \n\t" \
114  "movd 24(%%edi), %%mm5 \n\t" \
115  "paddq %%mm5, %%mm6 \n\t" \
116  "movd %%mm1, 16(%%edi) \n\t" \
117  "psrlq $32, %%mm1 \n\t" \
118  "paddq %%mm4, %%mm1 \n\t" \
119  "movd 28(%%edi), %%mm5 \n\t" \
120  "paddq %%mm5, %%mm3 \n\t" \
121  "movd %%mm1, 20(%%edi) \n\t" \
122  "psrlq $32, %%mm1 \n\t" \
123  "paddq %%mm6, %%mm1 \n\t" \
124  "movd %%mm1, 24(%%edi) \n\t" \
125  "psrlq $32, %%mm1 \n\t" \
126  "paddq %%mm3, %%mm1 \n\t" \
127  "movd %%mm1, 28(%%edi) \n\t" \
128  "addl $32, %%edi \n\t" \
129  "addl $32, %%esi \n\t" \
130  "psrlq $32, %%mm1 \n\t" \
131  "movd %%mm1, %%ecx \n\t"
132 
133 #define MULADDC_STOP \
134  "emms \n\t" \
135  "movl %4, %%ebx \n\t" \
136  "movl %%ecx, %1 \n\t" \
137  "movl %%edi, %2 \n\t" \
138  "movl %%esi, %3 \n\t" \
139  : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
140  : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
141  : "eax", "ecx", "edx", "esi", "edi" \
142  );
143 
144 #else
145 
146 #define MULADDC_STOP \
147  "movl %4, %%ebx \n\t" \
148  "movl %%ecx, %1 \n\t" \
149  "movl %%edi, %2 \n\t" \
150  "movl %%esi, %3 \n\t" \
151  : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \
152  : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \
153  : "eax", "ecx", "edx", "esi", "edi" \
154  );
155 #endif /* SSE2 */
156 #endif /* i386 */
157 
158 #if defined(__amd64__) || defined (__x86_64__)
159 
160 #define MULADDC_INIT \
161  asm( \
162  "movq %3, %%rsi \n\t" \
163  "movq %4, %%rdi \n\t" \
164  "movq %5, %%rcx \n\t" \
165  "movq %6, %%rbx \n\t" \
166  "xorq %%r8, %%r8 \n\t"
167 
168 #define MULADDC_CORE \
169  "movq (%%rsi), %%rax \n\t" \
170  "mulq %%rbx \n\t" \
171  "addq $8, %%rsi \n\t" \
172  "addq %%rcx, %%rax \n\t" \
173  "movq %%r8, %%rcx \n\t" \
174  "adcq $0, %%rdx \n\t" \
175  "nop \n\t" \
176  "addq %%rax, (%%rdi) \n\t" \
177  "adcq %%rdx, %%rcx \n\t" \
178  "addq $8, %%rdi \n\t"
179 
180 #define MULADDC_STOP \
181  "movq %%rcx, %0 \n\t" \
182  "movq %%rdi, %1 \n\t" \
183  "movq %%rsi, %2 \n\t" \
184  : "=m" (c), "=m" (d), "=m" (s) \
185  : "m" (s), "m" (d), "m" (c), "m" (b) \
186  : "rax", "rcx", "rdx", "rbx", "rsi", "rdi", "r8" \
187  );
188 
189 #endif /* AMD64 */
190 
191 #if defined(__mc68020__) || defined(__mcpu32__)
192 
193 #define MULADDC_INIT \
194  asm( \
195  "movl %3, %%a2 \n\t" \
196  "movl %4, %%a3 \n\t" \
197  "movl %5, %%d3 \n\t" \
198  "movl %6, %%d2 \n\t" \
199  "moveq #0, %%d0 \n\t"
200 
201 #define MULADDC_CORE \
202  "movel %%a2@+, %%d1 \n\t" \
203  "mulul %%d2, %%d4:%%d1 \n\t" \
204  "addl %%d3, %%d1 \n\t" \
205  "addxl %%d0, %%d4 \n\t" \
206  "moveq #0, %%d3 \n\t" \
207  "addl %%d1, %%a3@+ \n\t" \
208  "addxl %%d4, %%d3 \n\t"
209 
210 #define MULADDC_STOP \
211  "movl %%d3, %0 \n\t" \
212  "movl %%a3, %1 \n\t" \
213  "movl %%a2, %2 \n\t" \
214  : "=m" (c), "=m" (d), "=m" (s) \
215  : "m" (s), "m" (d), "m" (c), "m" (b) \
216  : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \
217  );
218 
219 #define MULADDC_HUIT \
220  "movel %%a2@+, %%d1 \n\t" \
221  "mulul %%d2, %%d4:%%d1 \n\t" \
222  "addxl %%d3, %%d1 \n\t" \
223  "addxl %%d0, %%d4 \n\t" \
224  "addl %%d1, %%a3@+ \n\t" \
225  "movel %%a2@+, %%d1 \n\t" \
226  "mulul %%d2, %%d3:%%d1 \n\t" \
227  "addxl %%d4, %%d1 \n\t" \
228  "addxl %%d0, %%d3 \n\t" \
229  "addl %%d1, %%a3@+ \n\t" \
230  "movel %%a2@+, %%d1 \n\t" \
231  "mulul %%d2, %%d4:%%d1 \n\t" \
232  "addxl %%d3, %%d1 \n\t" \
233  "addxl %%d0, %%d4 \n\t" \
234  "addl %%d1, %%a3@+ \n\t" \
235  "movel %%a2@+, %%d1 \n\t" \
236  "mulul %%d2, %%d3:%%d1 \n\t" \
237  "addxl %%d4, %%d1 \n\t" \
238  "addxl %%d0, %%d3 \n\t" \
239  "addl %%d1, %%a3@+ \n\t" \
240  "movel %%a2@+, %%d1 \n\t" \
241  "mulul %%d2, %%d4:%%d1 \n\t" \
242  "addxl %%d3, %%d1 \n\t" \
243  "addxl %%d0, %%d4 \n\t" \
244  "addl %%d1, %%a3@+ \n\t" \
245  "movel %%a2@+, %%d1 \n\t" \
246  "mulul %%d2, %%d3:%%d1 \n\t" \
247  "addxl %%d4, %%d1 \n\t" \
248  "addxl %%d0, %%d3 \n\t" \
249  "addl %%d1, %%a3@+ \n\t" \
250  "movel %%a2@+, %%d1 \n\t" \
251  "mulul %%d2, %%d4:%%d1 \n\t" \
252  "addxl %%d3, %%d1 \n\t" \
253  "addxl %%d0, %%d4 \n\t" \
254  "addl %%d1, %%a3@+ \n\t" \
255  "movel %%a2@+, %%d1 \n\t" \
256  "mulul %%d2, %%d3:%%d1 \n\t" \
257  "addxl %%d4, %%d1 \n\t" \
258  "addxl %%d0, %%d3 \n\t" \
259  "addl %%d1, %%a3@+ \n\t" \
260  "addxl %%d0, %%d3 \n\t"
261 
262 #endif /* MC68000 */
263 
264 #if defined(__powerpc64__) || defined(__ppc64__)
265 
266 #if defined(__MACH__) && defined(__APPLE__)
267 
268 #define MULADDC_INIT \
269  asm( \
270  "ld r3, %3 \n\t" \
271  "ld r4, %4 \n\t" \
272  "ld r5, %5 \n\t" \
273  "ld r6, %6 \n\t" \
274  "addi r3, r3, -8 \n\t" \
275  "addi r4, r4, -8 \n\t" \
276  "addic r5, r5, 0 \n\t"
277 
278 #define MULADDC_CORE \
279  "ldu r7, 8(r3) \n\t" \
280  "mulld r8, r7, r6 \n\t" \
281  "mulhdu r9, r7, r6 \n\t" \
282  "adde r8, r8, r5 \n\t" \
283  "ld r7, 8(r4) \n\t" \
284  "addze r5, r9 \n\t" \
285  "addc r8, r8, r7 \n\t" \
286  "stdu r8, 8(r4) \n\t"
287 
288 #define MULADDC_STOP \
289  "addze r5, r5 \n\t" \
290  "addi r4, r4, 8 \n\t" \
291  "addi r3, r3, 8 \n\t" \
292  "std r5, %0 \n\t" \
293  "std r4, %1 \n\t" \
294  "std r3, %2 \n\t" \
295  : "=m" (c), "=m" (d), "=m" (s) \
296  : "m" (s), "m" (d), "m" (c), "m" (b) \
297  : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
298  );
299 
300 
301 #else /* __MACH__ && __APPLE__ */
302 
303 #define MULADDC_INIT \
304  asm( \
305  "ld %%r3, %3 \n\t" \
306  "ld %%r4, %4 \n\t" \
307  "ld %%r5, %5 \n\t" \
308  "ld %%r6, %6 \n\t" \
309  "addi %%r3, %%r3, -8 \n\t" \
310  "addi %%r4, %%r4, -8 \n\t" \
311  "addic %%r5, %%r5, 0 \n\t"
312 
313 #define MULADDC_CORE \
314  "ldu %%r7, 8(%%r3) \n\t" \
315  "mulld %%r8, %%r7, %%r6 \n\t" \
316  "mulhdu %%r9, %%r7, %%r6 \n\t" \
317  "adde %%r8, %%r8, %%r5 \n\t" \
318  "ld %%r7, 8(%%r4) \n\t" \
319  "addze %%r5, %%r9 \n\t" \
320  "addc %%r8, %%r8, %%r7 \n\t" \
321  "stdu %%r8, 8(%%r4) \n\t"
322 
323 #define MULADDC_STOP \
324  "addze %%r5, %%r5 \n\t" \
325  "addi %%r4, %%r4, 8 \n\t" \
326  "addi %%r3, %%r3, 8 \n\t" \
327  "std %%r5, %0 \n\t" \
328  "std %%r4, %1 \n\t" \
329  "std %%r3, %2 \n\t" \
330  : "=m" (c), "=m" (d), "=m" (s) \
331  : "m" (s), "m" (d), "m" (c), "m" (b) \
332  : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
333  );
334 
335 #endif /* __MACH__ && __APPLE__ */
336 
337 #elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */
338 
339 #if defined(__MACH__) && defined(__APPLE__)
340 
341 #define MULADDC_INIT \
342  asm( \
343  "lwz r3, %3 \n\t" \
344  "lwz r4, %4 \n\t" \
345  "lwz r5, %5 \n\t" \
346  "lwz r6, %6 \n\t" \
347  "addi r3, r3, -4 \n\t" \
348  "addi r4, r4, -4 \n\t" \
349  "addic r5, r5, 0 \n\t"
350 
351 #define MULADDC_CORE \
352  "lwzu r7, 4(r3) \n\t" \
353  "mullw r8, r7, r6 \n\t" \
354  "mulhwu r9, r7, r6 \n\t" \
355  "adde r8, r8, r5 \n\t" \
356  "lwz r7, 4(r4) \n\t" \
357  "addze r5, r9 \n\t" \
358  "addc r8, r8, r7 \n\t" \
359  "stwu r8, 4(r4) \n\t"
360 
361 #define MULADDC_STOP \
362  "addze r5, r5 \n\t" \
363  "addi r4, r4, 4 \n\t" \
364  "addi r3, r3, 4 \n\t" \
365  "stw r5, %0 \n\t" \
366  "stw r4, %1 \n\t" \
367  "stw r3, %2 \n\t" \
368  : "=m" (c), "=m" (d), "=m" (s) \
369  : "m" (s), "m" (d), "m" (c), "m" (b) \
370  : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
371  );
372 
373 #else /* __MACH__ && __APPLE__ */
374 
375 #define MULADDC_INIT \
376  asm( \
377  "lwz %%r3, %3 \n\t" \
378  "lwz %%r4, %4 \n\t" \
379  "lwz %%r5, %5 \n\t" \
380  "lwz %%r6, %6 \n\t" \
381  "addi %%r3, %%r3, -4 \n\t" \
382  "addi %%r4, %%r4, -4 \n\t" \
383  "addic %%r5, %%r5, 0 \n\t"
384 
385 #define MULADDC_CORE \
386  "lwzu %%r7, 4(%%r3) \n\t" \
387  "mullw %%r8, %%r7, %%r6 \n\t" \
388  "mulhwu %%r9, %%r7, %%r6 \n\t" \
389  "adde %%r8, %%r8, %%r5 \n\t" \
390  "lwz %%r7, 4(%%r4) \n\t" \
391  "addze %%r5, %%r9 \n\t" \
392  "addc %%r8, %%r8, %%r7 \n\t" \
393  "stwu %%r8, 4(%%r4) \n\t"
394 
395 #define MULADDC_STOP \
396  "addze %%r5, %%r5 \n\t" \
397  "addi %%r4, %%r4, 4 \n\t" \
398  "addi %%r3, %%r3, 4 \n\t" \
399  "stw %%r5, %0 \n\t" \
400  "stw %%r4, %1 \n\t" \
401  "stw %%r3, %2 \n\t" \
402  : "=m" (c), "=m" (d), "=m" (s) \
403  : "m" (s), "m" (d), "m" (c), "m" (b) \
404  : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \
405  );
406 
407 #endif /* __MACH__ && __APPLE__ */
408 
409 #endif /* PPC32 */
410 
411 /*
412  * The Sparc64 assembly is reported to be broken.
413  * Disable it for now, until we're able to fix it.
414  */
415 #if 0 && defined(__sparc__) && defined(__sparc64__)
416 
417 #define MULADDC_INIT \
418  asm( \
419  "ldx %3, %%o0 \n\t" \
420  "ldx %4, %%o1 \n\t" \
421  "ld %5, %%o2 \n\t" \
422  "ld %6, %%o3 \n\t"
423 
424 #define MULADDC_CORE \
425  "ld [%%o0], %%o4 \n\t" \
426  "inc 4, %%o0 \n\t" \
427  "ld [%%o1], %%o5 \n\t" \
428  "umul %%o3, %%o4, %%o4 \n\t" \
429  "addcc %%o4, %%o2, %%o4 \n\t" \
430  "rd %%y, %%g1 \n\t" \
431  "addx %%g1, 0, %%g1 \n\t" \
432  "addcc %%o4, %%o5, %%o4 \n\t" \
433  "st %%o4, [%%o1] \n\t" \
434  "addx %%g1, 0, %%o2 \n\t" \
435  "inc 4, %%o1 \n\t"
436 
437  #define MULADDC_STOP \
438  "st %%o2, %0 \n\t" \
439  "stx %%o1, %1 \n\t" \
440  "stx %%o0, %2 \n\t" \
441  : "=m" (c), "=m" (d), "=m" (s) \
442  : "m" (s), "m" (d), "m" (c), "m" (b) \
443  : "g1", "o0", "o1", "o2", "o3", "o4", \
444  "o5" \
445  );
446 #endif /* SPARCv9 */
447 
448 #if defined(__sparc__) && !defined(__sparc64__)
449 
450 #define MULADDC_INIT \
451  asm( \
452  "ld %3, %%o0 \n\t" \
453  "ld %4, %%o1 \n\t" \
454  "ld %5, %%o2 \n\t" \
455  "ld %6, %%o3 \n\t"
456 
457 #define MULADDC_CORE \
458  "ld [%%o0], %%o4 \n\t" \
459  "inc 4, %%o0 \n\t" \
460  "ld [%%o1], %%o5 \n\t" \
461  "umul %%o3, %%o4, %%o4 \n\t" \
462  "addcc %%o4, %%o2, %%o4 \n\t" \
463  "rd %%y, %%g1 \n\t" \
464  "addx %%g1, 0, %%g1 \n\t" \
465  "addcc %%o4, %%o5, %%o4 \n\t" \
466  "st %%o4, [%%o1] \n\t" \
467  "addx %%g1, 0, %%o2 \n\t" \
468  "inc 4, %%o1 \n\t"
469 
470 #define MULADDC_STOP \
471  "st %%o2, %0 \n\t" \
472  "st %%o1, %1 \n\t" \
473  "st %%o0, %2 \n\t" \
474  : "=m" (c), "=m" (d), "=m" (s) \
475  : "m" (s), "m" (d), "m" (c), "m" (b) \
476  : "g1", "o0", "o1", "o2", "o3", "o4", \
477  "o5" \
478  );
479 
480 #endif /* SPARCv8 */
481 
482 #if defined(__microblaze__) || defined(microblaze)
483 
484 #define MULADDC_INIT \
485  asm( \
486  "lwi r3, %3 \n\t" \
487  "lwi r4, %4 \n\t" \
488  "lwi r5, %5 \n\t" \
489  "lwi r6, %6 \n\t" \
490  "andi r7, r6, 0xffff \n\t" \
491  "bsrli r6, r6, 16 \n\t"
492 
493 #define MULADDC_CORE \
494  "lhui r8, r3, 0 \n\t" \
495  "addi r3, r3, 2 \n\t" \
496  "lhui r9, r3, 0 \n\t" \
497  "addi r3, r3, 2 \n\t" \
498  "mul r10, r9, r6 \n\t" \
499  "mul r11, r8, r7 \n\t" \
500  "mul r12, r9, r7 \n\t" \
501  "mul r13, r8, r6 \n\t" \
502  "bsrli r8, r10, 16 \n\t" \
503  "bsrli r9, r11, 16 \n\t" \
504  "add r13, r13, r8 \n\t" \
505  "add r13, r13, r9 \n\t" \
506  "bslli r10, r10, 16 \n\t" \
507  "bslli r11, r11, 16 \n\t" \
508  "add r12, r12, r10 \n\t" \
509  "addc r13, r13, r0 \n\t" \
510  "add r12, r12, r11 \n\t" \
511  "addc r13, r13, r0 \n\t" \
512  "lwi r10, r4, 0 \n\t" \
513  "add r12, r12, r10 \n\t" \
514  "addc r13, r13, r0 \n\t" \
515  "add r12, r12, r5 \n\t" \
516  "addc r5, r13, r0 \n\t" \
517  "swi r12, r4, 0 \n\t" \
518  "addi r4, r4, 4 \n\t"
519 
520 #define MULADDC_STOP \
521  "swi r5, %0 \n\t" \
522  "swi r4, %1 \n\t" \
523  "swi r3, %2 \n\t" \
524  : "=m" (c), "=m" (d), "=m" (s) \
525  : "m" (s), "m" (d), "m" (c), "m" (b) \
526  : "r3", "r4" "r5", "r6", "r7", "r8", \
527  "r9", "r10", "r11", "r12", "r13" \
528  );
529 
530 #endif /* MicroBlaze */
531 
532 #if defined(__tricore__)
533 
534 #define MULADDC_INIT \
535  asm( \
536  "ld.a %%a2, %3 \n\t" \
537  "ld.a %%a3, %4 \n\t" \
538  "ld.w %%d4, %5 \n\t" \
539  "ld.w %%d1, %6 \n\t" \
540  "xor %%d5, %%d5 \n\t"
541 
542 #define MULADDC_CORE \
543  "ld.w %%d0, [%%a2+] \n\t" \
544  "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \
545  "ld.w %%d0, [%%a3] \n\t" \
546  "addx %%d2, %%d2, %%d0 \n\t" \
547  "addc %%d3, %%d3, 0 \n\t" \
548  "mov %%d4, %%d3 \n\t" \
549  "st.w [%%a3+], %%d2 \n\t"
550 
551 #define MULADDC_STOP \
552  "st.w %0, %%d4 \n\t" \
553  "st.a %1, %%a3 \n\t" \
554  "st.a %2, %%a2 \n\t" \
555  : "=m" (c), "=m" (d), "=m" (s) \
556  : "m" (s), "m" (d), "m" (c), "m" (b) \
557  : "d0", "d1", "e2", "d4", "a2", "a3" \
558  );
559 
560 #endif /* TriCore */
561 
562 #if defined(__arm__)
563 
564 #if defined(__thumb__) && !defined(__thumb2__)
565 
566 #define MULADDC_INIT \
567  asm( \
568  "ldr r0, %3 \n\t" \
569  "ldr r1, %4 \n\t" \
570  "ldr r2, %5 \n\t" \
571  "ldr r3, %6 \n\t" \
572  "lsr r7, r3, #16 \n\t" \
573  "mov r9, r7 \n\t" \
574  "lsl r7, r3, #16 \n\t" \
575  "lsr r7, r7, #16 \n\t" \
576  "mov r8, r7 \n\t"
577 
578 #define MULADDC_CORE \
579  "ldmia r0!, {r6} \n\t" \
580  "lsr r7, r6, #16 \n\t" \
581  "lsl r6, r6, #16 \n\t" \
582  "lsr r6, r6, #16 \n\t" \
583  "mov r4, r8 \n\t" \
584  "mul r4, r6 \n\t" \
585  "mov r3, r9 \n\t" \
586  "mul r6, r3 \n\t" \
587  "mov r5, r9 \n\t" \
588  "mul r5, r7 \n\t" \
589  "mov r3, r8 \n\t" \
590  "mul r7, r3 \n\t" \
591  "lsr r3, r6, #16 \n\t" \
592  "add r5, r5, r3 \n\t" \
593  "lsr r3, r7, #16 \n\t" \
594  "add r5, r5, r3 \n\t" \
595  "add r4, r4, r2 \n\t" \
596  "mov r2, #0 \n\t" \
597  "adc r5, r2 \n\t" \
598  "lsl r3, r6, #16 \n\t" \
599  "add r4, r4, r3 \n\t" \
600  "adc r5, r2 \n\t" \
601  "lsl r3, r7, #16 \n\t" \
602  "add r4, r4, r3 \n\t" \
603  "adc r5, r2 \n\t" \
604  "ldr r3, [r1] \n\t" \
605  "add r4, r4, r3 \n\t" \
606  "adc r2, r5 \n\t" \
607  "stmia r1!, {r4} \n\t"
608 
609 #define MULADDC_STOP \
610  "str r2, %0 \n\t" \
611  "str r1, %1 \n\t" \
612  "str r0, %2 \n\t" \
613  : "=m" (c), "=m" (d), "=m" (s) \
614  : "m" (s), "m" (d), "m" (c), "m" (b) \
615  : "r0", "r1", "r2", "r3", "r4", "r5", \
616  "r6", "r7", "r8", "r9", "cc" \
617  );
618 
619 #else
620 
621 #define MULADDC_INIT \
622  asm( \
623  "ldr r0, %3 \n\t" \
624  "ldr r1, %4 \n\t" \
625  "ldr r2, %5 \n\t" \
626  "ldr r3, %6 \n\t"
627 
628 #define MULADDC_CORE \
629  "ldr r4, [r0], #4 \n\t" \
630  "mov r5, #0 \n\t" \
631  "ldr r6, [r1] \n\t" \
632  "umlal r2, r5, r3, r4 \n\t" \
633  "adds r7, r6, r2 \n\t" \
634  "adc r2, r5, #0 \n\t" \
635  "str r7, [r1], #4 \n\t"
636 
637 #define MULADDC_STOP \
638  "str r2, %0 \n\t" \
639  "str r1, %1 \n\t" \
640  "str r0, %2 \n\t" \
641  : "=m" (c), "=m" (d), "=m" (s) \
642  : "m" (s), "m" (d), "m" (c), "m" (b) \
643  : "r0", "r1", "r2", "r3", "r4", "r5", \
644  "r6", "r7", "cc" \
645  );
646 
647 #endif /* Thumb */
648 
649 #endif /* ARMv3 */
650 
651 #if defined(__alpha__)
652 
653 #define MULADDC_INIT \
654  asm( \
655  "ldq $1, %3 \n\t" \
656  "ldq $2, %4 \n\t" \
657  "ldq $3, %5 \n\t" \
658  "ldq $4, %6 \n\t"
659 
660 #define MULADDC_CORE \
661  "ldq $6, 0($1) \n\t" \
662  "addq $1, 8, $1 \n\t" \
663  "mulq $6, $4, $7 \n\t" \
664  "umulh $6, $4, $6 \n\t" \
665  "addq $7, $3, $7 \n\t" \
666  "cmpult $7, $3, $3 \n\t" \
667  "ldq $5, 0($2) \n\t" \
668  "addq $7, $5, $7 \n\t" \
669  "cmpult $7, $5, $5 \n\t" \
670  "stq $7, 0($2) \n\t" \
671  "addq $2, 8, $2 \n\t" \
672  "addq $6, $3, $3 \n\t" \
673  "addq $5, $3, $3 \n\t"
674 
675 #define MULADDC_STOP \
676  "stq $3, %0 \n\t" \
677  "stq $2, %1 \n\t" \
678  "stq $1, %2 \n\t" \
679  : "=m" (c), "=m" (d), "=m" (s) \
680  : "m" (s), "m" (d), "m" (c), "m" (b) \
681  : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \
682  );
683 #endif /* Alpha */
684 
685 #if defined(__mips__) && !defined(__mips64)
686 
687 #define MULADDC_INIT \
688  asm( \
689  "lw $10, %3 \n\t" \
690  "lw $11, %4 \n\t" \
691  "lw $12, %5 \n\t" \
692  "lw $13, %6 \n\t"
693 
694 #define MULADDC_CORE \
695  "lw $14, 0($10) \n\t" \
696  "multu $13, $14 \n\t" \
697  "addi $10, $10, 4 \n\t" \
698  "mflo $14 \n\t" \
699  "mfhi $9 \n\t" \
700  "addu $14, $12, $14 \n\t" \
701  "lw $15, 0($11) \n\t" \
702  "sltu $12, $14, $12 \n\t" \
703  "addu $15, $14, $15 \n\t" \
704  "sltu $14, $15, $14 \n\t" \
705  "addu $12, $12, $9 \n\t" \
706  "sw $15, 0($11) \n\t" \
707  "addu $12, $12, $14 \n\t" \
708  "addi $11, $11, 4 \n\t"
709 
710 #define MULADDC_STOP \
711  "sw $12, %0 \n\t" \
712  "sw $11, %1 \n\t" \
713  "sw $10, %2 \n\t" \
714  : "=m" (c), "=m" (d), "=m" (s) \
715  : "m" (s), "m" (d), "m" (c), "m" (b) \
716  : "$9", "$10", "$11", "$12", "$13", "$14", "$15" \
717  );
718 
719 #endif /* MIPS */
720 #endif /* GNUC */
721 
722 #if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
723 
724 #define MULADDC_INIT \
725  __asm mov esi, s \
726  __asm mov edi, d \
727  __asm mov ecx, c \
728  __asm mov ebx, b
729 
730 #define MULADDC_CORE \
731  __asm lodsd \
732  __asm mul ebx \
733  __asm add eax, ecx \
734  __asm adc edx, 0 \
735  __asm add eax, [edi] \
736  __asm adc edx, 0 \
737  __asm mov ecx, edx \
738  __asm stosd
739 
740 #if defined(POLARSSL_HAVE_SSE2)
741 
742 #define EMIT __asm _emit
743 
744 #define MULADDC_HUIT \
745  EMIT 0x0F EMIT 0x6E EMIT 0xC9 \
746  EMIT 0x0F EMIT 0x6E EMIT 0xC3 \
747  EMIT 0x0F EMIT 0x6E EMIT 0x1F \
748  EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
749  EMIT 0x0F EMIT 0x6E EMIT 0x16 \
750  EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
751  EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \
752  EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
753  EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \
754  EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
755  EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \
756  EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \
757  EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
758  EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \
759  EMIT 0x0F EMIT 0xD4 EMIT 0xDC \
760  EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \
761  EMIT 0x0F EMIT 0xD4 EMIT 0xEE \
762  EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \
763  EMIT 0x0F EMIT 0xD4 EMIT 0xFC \
764  EMIT 0x0F EMIT 0x7E EMIT 0x0F \
765  EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \
766  EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \
767  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
768  EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \
769  EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \
770  EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
771  EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \
772  EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \
773  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \
774  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
775  EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \
776  EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \
777  EMIT 0x0F EMIT 0xD4 EMIT 0xCD \
778  EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \
779  EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \
780  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \
781  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
782  EMIT 0x0F EMIT 0xD4 EMIT 0xCF \
783  EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \
784  EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \
785  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \
786  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
787  EMIT 0x0F EMIT 0xD4 EMIT 0xCA \
788  EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \
789  EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \
790  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \
791  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
792  EMIT 0x0F EMIT 0xD4 EMIT 0xCC \
793  EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \
794  EMIT 0x0F EMIT 0xD4 EMIT 0xDD \
795  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \
796  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
797  EMIT 0x0F EMIT 0xD4 EMIT 0xCE \
798  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \
799  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
800  EMIT 0x0F EMIT 0xD4 EMIT 0xCB \
801  EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \
802  EMIT 0x83 EMIT 0xC7 EMIT 0x20 \
803  EMIT 0x83 EMIT 0xC6 EMIT 0x20 \
804  EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \
805  EMIT 0x0F EMIT 0x7E EMIT 0xC9
806 
807 #define MULADDC_STOP \
808  EMIT 0x0F EMIT 0x77 \
809  __asm mov c, ecx \
810  __asm mov d, edi \
811  __asm mov s, esi \
812 
813 #else
814 
815 #define MULADDC_STOP \
816  __asm mov c, ecx \
817  __asm mov d, edi \
818  __asm mov s, esi \
819 
820 #endif /* SSE2 */
821 #endif /* MSVC */
822 
823 #endif /* POLARSSL_HAVE_ASM */
824 
825 #if !defined(MULADDC_CORE)
826 #if defined(POLARSSL_HAVE_UDBL)
827 
828 #define MULADDC_INIT \
829 { \
830  t_udbl r; \
831  t_uint r0, r1;
832 
833 #define MULADDC_CORE \
834  r = *(s++) * (t_udbl) b; \
835  r0 = (t_uint) r; \
836  r1 = (t_uint)( r >> biL ); \
837  r0 += c; r1 += (r0 < c); \
838  r0 += *d; r1 += (r0 < *d); \
839  c = r1; *(d++) = r0;
840 
841 #define MULADDC_STOP \
842 }
843 
844 #else
845 #define MULADDC_INIT \
846 { \
847  t_uint s0, s1, b0, b1; \
848  t_uint r0, r1, rx, ry; \
849  b0 = ( b << biH ) >> biH; \
850  b1 = ( b >> biH );
851 
852 #define MULADDC_CORE \
853  s0 = ( *s << biH ) >> biH; \
854  s1 = ( *s >> biH ); s++; \
855  rx = s0 * b1; r0 = s0 * b0; \
856  ry = s1 * b0; r1 = s1 * b1; \
857  r1 += ( rx >> biH ); \
858  r1 += ( ry >> biH ); \
859  rx <<= biH; ry <<= biH; \
860  r0 += rx; r1 += (r0 < rx); \
861  r0 += ry; r1 += (r0 < ry); \
862  r0 += c; r1 += (r0 < c); \
863  r0 += *d; r1 += (r0 < *d); \
864  c = r1; *(d++) = r0;
865 
866 #define MULADDC_STOP \
867 }
868 
869 #endif /* C (generic) */
870 #endif /* C (longlong) */
871 
872 #endif /* bn_mul.h */
Multi-precision integer library.