diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/include/mbedtls/bn_mul.h')
-rw-r--r-- | lib/mbedtls-2.27.0/include/mbedtls/bn_mul.h | 978 |
1 files changed, 978 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/include/mbedtls/bn_mul.h b/lib/mbedtls-2.27.0/include/mbedtls/bn_mul.h new file mode 100644 index 0000000..a0fa677 --- /dev/null +++ b/lib/mbedtls-2.27.0/include/mbedtls/bn_mul.h @@ -0,0 +1,978 @@ +/** + * \file bn_mul.h + * + * \brief Multi-precision integer library + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + * Multiply source vector [s] with b, add result + * to destination vector [d] and set carry c. + * + * Currently supports: + * + * . IA-32 (386+) . AMD64 / EM64T + * . IA-32 (SSE2) . Motorola 68000 + * . PowerPC, 32-bit . MicroBlaze + * . PowerPC, 64-bit . TriCore + * . SPARC v8 . ARM v3+ + * . Alpha . MIPS32 + * . C, longlong . C, generic + */ +#ifndef MBEDTLS_BN_MUL_H +#define MBEDTLS_BN_MUL_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "mbedtls/bignum.h" + + +/* + * Conversion macros for embedded constants: + * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2 + */ +#if defined(MBEDTLS_HAVE_INT32) + +#define MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d ) \ + ( (mbedtls_mpi_uint) (a) << 0 ) | \ + ( (mbedtls_mpi_uint) (b) << 8 ) | \ + ( (mbedtls_mpi_uint) (c) << 16 ) | \ + ( (mbedtls_mpi_uint) (d) << 24 ) + +#define MBEDTLS_BYTES_TO_T_UINT_2( a, b ) \ + MBEDTLS_BYTES_TO_T_UINT_4( a, b, 0, 0 ) + +#define MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \ + MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d ), \ + MBEDTLS_BYTES_TO_T_UINT_4( e, f, g, h ) + +#else /* 64-bits */ + +#define MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \ + ( (mbedtls_mpi_uint) (a) << 0 ) | \ + ( (mbedtls_mpi_uint) (b) << 8 ) | \ + ( (mbedtls_mpi_uint) (c) << 16 ) | \ + ( (mbedtls_mpi_uint) (d) << 24 ) | \ + ( (mbedtls_mpi_uint) (e) << 32 ) | \ + ( (mbedtls_mpi_uint) (f) << 40 ) | \ + ( (mbedtls_mpi_uint) (g) << 48 ) | \ + ( (mbedtls_mpi_uint) (h) << 56 ) + +#define MBEDTLS_BYTES_TO_T_UINT_4( a, b, c, d ) \ + MBEDTLS_BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 ) + +#define MBEDTLS_BYTES_TO_T_UINT_2( a, b ) \ + MBEDTLS_BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 ) + +#endif /* bits in mbedtls_mpi_uint */ + +#if defined(MBEDTLS_HAVE_ASM) + +#ifndef asm +#define asm __asm +#endif + +/* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */ +#if defined(__GNUC__) && \ + ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 ) + +/* + * Disable use of the i386 assembly code below if option -O0, to disable all + * compiler optimisations, is passed, detected with __OPTIMIZE__ + * This is done as the number of registers used in the assembly code doesn't + * work with the -O0 option. + */ +#if defined(__i386__) && defined(__OPTIMIZE__) + +#define MULADDC_INIT \ + asm( \ + "movl %%ebx, %0 \n\t" \ + "movl %5, %%esi \n\t" \ + "movl %6, %%edi \n\t" \ + "movl %7, %%ecx \n\t" \ + "movl %8, %%ebx \n\t" + +#define MULADDC_CORE \ + "lodsl \n\t" \ + "mull %%ebx \n\t" \ + "addl %%ecx, %%eax \n\t" \ + "adcl $0, %%edx \n\t" \ + "addl (%%edi), %%eax \n\t" \ + "adcl $0, %%edx \n\t" \ + "movl %%edx, %%ecx \n\t" \ + "stosl \n\t" + +#if defined(MBEDTLS_HAVE_SSE2) + +#define MULADDC_HUIT \ + "movd %%ecx, %%mm1 \n\t" \ + "movd %%ebx, %%mm0 \n\t" \ + "movd (%%edi), %%mm3 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd (%%esi), %%mm2 \n\t" \ + "pmuludq %%mm0, %%mm2 \n\t" \ + "movd 4(%%esi), %%mm4 \n\t" \ + "pmuludq %%mm0, %%mm4 \n\t" \ + "movd 8(%%esi), %%mm6 \n\t" \ + "pmuludq %%mm0, %%mm6 \n\t" \ + "movd 12(%%esi), %%mm7 \n\t" \ + "pmuludq %%mm0, %%mm7 \n\t" \ + "paddq %%mm2, %%mm1 \n\t" \ + "movd 4(%%edi), %%mm3 \n\t" \ + "paddq %%mm4, %%mm3 \n\t" \ + "movd 8(%%edi), %%mm5 \n\t" \ + "paddq %%mm6, %%mm5 \n\t" \ + "movd 12(%%edi), %%mm4 \n\t" \ + "paddq %%mm4, %%mm7 \n\t" \ + "movd %%mm1, (%%edi) \n\t" \ + "movd 16(%%esi), %%mm2 \n\t" \ + "pmuludq %%mm0, %%mm2 \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd 20(%%esi), %%mm4 \n\t" \ + "pmuludq %%mm0, %%mm4 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd 24(%%esi), %%mm6 \n\t" \ + "pmuludq %%mm0, %%mm6 \n\t" \ + "movd %%mm1, 4(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd 28(%%esi), %%mm3 \n\t" \ + "pmuludq %%mm0, %%mm3 \n\t" \ + "paddq %%mm5, %%mm1 \n\t" \ + "movd 16(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm2 \n\t" \ + "movd %%mm1, 8(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm7, %%mm1 \n\t" \ + "movd 20(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm4 \n\t" \ + "movd %%mm1, 12(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm2, %%mm1 \n\t" \ + "movd 24(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm6 \n\t" \ + "movd %%mm1, 16(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm4, %%mm1 \n\t" \ + "movd 28(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm3 \n\t" \ + "movd %%mm1, 20(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm6, %%mm1 \n\t" \ + "movd %%mm1, 24(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd %%mm1, 28(%%edi) \n\t" \ + "addl $32, %%edi \n\t" \ + "addl $32, %%esi \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd %%mm1, %%ecx \n\t" + +#define MULADDC_STOP \ + "emms \n\t" \ + "movl %4, %%ebx \n\t" \ + "movl %%ecx, %1 \n\t" \ + "movl %%edi, %2 \n\t" \ + "movl %%esi, %3 \n\t" \ + : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ + : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ + : "eax", "ebx", "ecx", "edx", "esi", "edi" \ + ); + +#else + +#define MULADDC_STOP \ + "movl %4, %%ebx \n\t" \ + "movl %%ecx, %1 \n\t" \ + "movl %%edi, %2 \n\t" \ + "movl %%esi, %3 \n\t" \ + : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ + : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ + : "eax", "ebx", "ecx", "edx", "esi", "edi" \ + ); +#endif /* SSE2 */ +#endif /* i386 */ + +#if defined(__amd64__) || defined (__x86_64__) + +#define MULADDC_INIT \ + asm( \ + "xorq %%r8, %%r8\n" + +#define MULADDC_CORE \ + "movq (%%rsi), %%rax\n" \ + "mulq %%rbx\n" \ + "addq $8, %%rsi\n" \ + "addq %%rcx, %%rax\n" \ + "movq %%r8, %%rcx\n" \ + "adcq $0, %%rdx\n" \ + "nop \n" \ + "addq %%rax, (%%rdi)\n" \ + "adcq %%rdx, %%rcx\n" \ + "addq $8, %%rdi\n" + +#define MULADDC_STOP \ + : "+c" (c), "+D" (d), "+S" (s) \ + : "b" (b) \ + : "rax", "rdx", "r8" \ + ); + +#endif /* AMD64 */ + +#if defined(__aarch64__) + +#define MULADDC_INIT \ + asm( + +#define MULADDC_CORE \ + "ldr x4, [%2], #8 \n\t" \ + "ldr x5, [%1] \n\t" \ + "mul x6, x4, %3 \n\t" \ + "umulh x7, x4, %3 \n\t" \ + "adds x5, x5, x6 \n\t" \ + "adc x7, x7, xzr \n\t" \ + "adds x5, x5, %0 \n\t" \ + "adc %0, x7, xzr \n\t" \ + "str x5, [%1], #8 \n\t" + +#define MULADDC_STOP \ + : "+r" (c), "+r" (d), "+r" (s) \ + : "r" (b) \ + : "x4", "x5", "x6", "x7", "cc" \ + ); + +#endif /* Aarch64 */ + +#if defined(__mc68020__) || defined(__mcpu32__) + +#define MULADDC_INIT \ + asm( \ + "movl %3, %%a2 \n\t" \ + "movl %4, %%a3 \n\t" \ + "movl %5, %%d3 \n\t" \ + "movl %6, %%d2 \n\t" \ + "moveq #0, %%d0 \n\t" + +#define MULADDC_CORE \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "moveq #0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "addxl %%d4, %%d3 \n\t" + +#define MULADDC_STOP \ + "movl %%d3, %0 \n\t" \ + "movl %%a3, %1 \n\t" \ + "movl %%a2, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \ + ); + +#define MULADDC_HUIT \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "addxl %%d0, %%d3 \n\t" + +#endif /* MC68000 */ + +#if defined(__powerpc64__) || defined(__ppc64__) + +#if defined(__MACH__) && defined(__APPLE__) + +#define MULADDC_INIT \ + asm( \ + "ld r3, %3 \n\t" \ + "ld r4, %4 \n\t" \ + "ld r5, %5 \n\t" \ + "ld r6, %6 \n\t" \ + "addi r3, r3, -8 \n\t" \ + "addi r4, r4, -8 \n\t" \ + "addic r5, r5, 0 \n\t" + +#define MULADDC_CORE \ + "ldu r7, 8(r3) \n\t" \ + "mulld r8, r7, r6 \n\t" \ + "mulhdu r9, r7, r6 \n\t" \ + "adde r8, r8, r5 \n\t" \ + "ld r7, 8(r4) \n\t" \ + "addze r5, r9 \n\t" \ + "addc r8, r8, r7 \n\t" \ + "stdu r8, 8(r4) \n\t" + +#define MULADDC_STOP \ + "addze r5, r5 \n\t" \ + "addi r4, r4, 8 \n\t" \ + "addi r3, r3, 8 \n\t" \ + "std r5, %0 \n\t" \ + "std r4, %1 \n\t" \ + "std r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + + +#else /* __MACH__ && __APPLE__ */ + +#define MULADDC_INIT \ + asm( \ + "ld %%r3, %3 \n\t" \ + "ld %%r4, %4 \n\t" \ + "ld %%r5, %5 \n\t" \ + "ld %%r6, %6 \n\t" \ + "addi %%r3, %%r3, -8 \n\t" \ + "addi %%r4, %%r4, -8 \n\t" \ + "addic %%r5, %%r5, 0 \n\t" + +#define MULADDC_CORE \ + "ldu %%r7, 8(%%r3) \n\t" \ + "mulld %%r8, %%r7, %%r6 \n\t" \ + "mulhdu %%r9, %%r7, %%r6 \n\t" \ + "adde %%r8, %%r8, %%r5 \n\t" \ + "ld %%r7, 8(%%r4) \n\t" \ + "addze %%r5, %%r9 \n\t" \ + "addc %%r8, %%r8, %%r7 \n\t" \ + "stdu %%r8, 8(%%r4) \n\t" + +#define MULADDC_STOP \ + "addze %%r5, %%r5 \n\t" \ + "addi %%r4, %%r4, 8 \n\t" \ + "addi %%r3, %%r3, 8 \n\t" \ + "std %%r5, %0 \n\t" \ + "std %%r4, %1 \n\t" \ + "std %%r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#endif /* __MACH__ && __APPLE__ */ + +#elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */ + +#if defined(__MACH__) && defined(__APPLE__) + +#define MULADDC_INIT \ + asm( \ + "lwz r3, %3 \n\t" \ + "lwz r4, %4 \n\t" \ + "lwz r5, %5 \n\t" \ + "lwz r6, %6 \n\t" \ + "addi r3, r3, -4 \n\t" \ + "addi r4, r4, -4 \n\t" \ + "addic r5, r5, 0 \n\t" + +#define MULADDC_CORE \ + "lwzu r7, 4(r3) \n\t" \ + "mullw r8, r7, r6 \n\t" \ + "mulhwu r9, r7, r6 \n\t" \ + "adde r8, r8, r5 \n\t" \ + "lwz r7, 4(r4) \n\t" \ + "addze r5, r9 \n\t" \ + "addc r8, r8, r7 \n\t" \ + "stwu r8, 4(r4) \n\t" + +#define MULADDC_STOP \ + "addze r5, r5 \n\t" \ + "addi r4, r4, 4 \n\t" \ + "addi r3, r3, 4 \n\t" \ + "stw r5, %0 \n\t" \ + "stw r4, %1 \n\t" \ + "stw r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#else /* __MACH__ && __APPLE__ */ + +#define MULADDC_INIT \ + asm( \ + "lwz %%r3, %3 \n\t" \ + "lwz %%r4, %4 \n\t" \ + "lwz %%r5, %5 \n\t" \ + "lwz %%r6, %6 \n\t" \ + "addi %%r3, %%r3, -4 \n\t" \ + "addi %%r4, %%r4, -4 \n\t" \ + "addic %%r5, %%r5, 0 \n\t" + +#define MULADDC_CORE \ + "lwzu %%r7, 4(%%r3) \n\t" \ + "mullw %%r8, %%r7, %%r6 \n\t" \ + "mulhwu %%r9, %%r7, %%r6 \n\t" \ + "adde %%r8, %%r8, %%r5 \n\t" \ + "lwz %%r7, 4(%%r4) \n\t" \ + "addze %%r5, %%r9 \n\t" \ + "addc %%r8, %%r8, %%r7 \n\t" \ + "stwu %%r8, 4(%%r4) \n\t" + +#define MULADDC_STOP \ + "addze %%r5, %%r5 \n\t" \ + "addi %%r4, %%r4, 4 \n\t" \ + "addi %%r3, %%r3, 4 \n\t" \ + "stw %%r5, %0 \n\t" \ + "stw %%r4, %1 \n\t" \ + "stw %%r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#endif /* __MACH__ && __APPLE__ */ + +#endif /* PPC32 */ + +/* + * The Sparc(64) assembly is reported to be broken. + * Disable it for now, until we're able to fix it. + */ +#if 0 && defined(__sparc__) +#if defined(__sparc64__) + +#define MULADDC_INIT \ + asm( \ + "ldx %3, %%o0 \n\t" \ + "ldx %4, %%o1 \n\t" \ + "ld %5, %%o2 \n\t" \ + "ld %6, %%o3 \n\t" + +#define MULADDC_CORE \ + "ld [%%o0], %%o4 \n\t" \ + "inc 4, %%o0 \n\t" \ + "ld [%%o1], %%o5 \n\t" \ + "umul %%o3, %%o4, %%o4 \n\t" \ + "addcc %%o4, %%o2, %%o4 \n\t" \ + "rd %%y, %%g1 \n\t" \ + "addx %%g1, 0, %%g1 \n\t" \ + "addcc %%o4, %%o5, %%o4 \n\t" \ + "st %%o4, [%%o1] \n\t" \ + "addx %%g1, 0, %%o2 \n\t" \ + "inc 4, %%o1 \n\t" + + #define MULADDC_STOP \ + "st %%o2, %0 \n\t" \ + "stx %%o1, %1 \n\t" \ + "stx %%o0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "g1", "o0", "o1", "o2", "o3", "o4", \ + "o5" \ + ); + +#else /* __sparc64__ */ + +#define MULADDC_INIT \ + asm( \ + "ld %3, %%o0 \n\t" \ + "ld %4, %%o1 \n\t" \ + "ld %5, %%o2 \n\t" \ + "ld %6, %%o3 \n\t" + +#define MULADDC_CORE \ + "ld [%%o0], %%o4 \n\t" \ + "inc 4, %%o0 \n\t" \ + "ld [%%o1], %%o5 \n\t" \ + "umul %%o3, %%o4, %%o4 \n\t" \ + "addcc %%o4, %%o2, %%o4 \n\t" \ + "rd %%y, %%g1 \n\t" \ + "addx %%g1, 0, %%g1 \n\t" \ + "addcc %%o4, %%o5, %%o4 \n\t" \ + "st %%o4, [%%o1] \n\t" \ + "addx %%g1, 0, %%o2 \n\t" \ + "inc 4, %%o1 \n\t" + +#define MULADDC_STOP \ + "st %%o2, %0 \n\t" \ + "st %%o1, %1 \n\t" \ + "st %%o0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "g1", "o0", "o1", "o2", "o3", "o4", \ + "o5" \ + ); + +#endif /* __sparc64__ */ +#endif /* __sparc__ */ + +#if defined(__microblaze__) || defined(microblaze) + +#define MULADDC_INIT \ + asm( \ + "lwi r3, %3 \n\t" \ + "lwi r4, %4 \n\t" \ + "lwi r5, %5 \n\t" \ + "lwi r6, %6 \n\t" \ + "andi r7, r6, 0xffff \n\t" \ + "bsrli r6, r6, 16 \n\t" + +#define MULADDC_CORE \ + "lhui r8, r3, 0 \n\t" \ + "addi r3, r3, 2 \n\t" \ + "lhui r9, r3, 0 \n\t" \ + "addi r3, r3, 2 \n\t" \ + "mul r10, r9, r6 \n\t" \ + "mul r11, r8, r7 \n\t" \ + "mul r12, r9, r7 \n\t" \ + "mul r13, r8, r6 \n\t" \ + "bsrli r8, r10, 16 \n\t" \ + "bsrli r9, r11, 16 \n\t" \ + "add r13, r13, r8 \n\t" \ + "add r13, r13, r9 \n\t" \ + "bslli r10, r10, 16 \n\t" \ + "bslli r11, r11, 16 \n\t" \ + "add r12, r12, r10 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "add r12, r12, r11 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "lwi r10, r4, 0 \n\t" \ + "add r12, r12, r10 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "add r12, r12, r5 \n\t" \ + "addc r5, r13, r0 \n\t" \ + "swi r12, r4, 0 \n\t" \ + "addi r4, r4, 4 \n\t" + +#define MULADDC_STOP \ + "swi r5, %0 \n\t" \ + "swi r4, %1 \n\t" \ + "swi r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", \ + "r9", "r10", "r11", "r12", "r13" \ + ); + +#endif /* MicroBlaze */ + +#if defined(__tricore__) + +#define MULADDC_INIT \ + asm( \ + "ld.a %%a2, %3 \n\t" \ + "ld.a %%a3, %4 \n\t" \ + "ld.w %%d4, %5 \n\t" \ + "ld.w %%d1, %6 \n\t" \ + "xor %%d5, %%d5 \n\t" + +#define MULADDC_CORE \ + "ld.w %%d0, [%%a2+] \n\t" \ + "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \ + "ld.w %%d0, [%%a3] \n\t" \ + "addx %%d2, %%d2, %%d0 \n\t" \ + "addc %%d3, %%d3, 0 \n\t" \ + "mov %%d4, %%d3 \n\t" \ + "st.w [%%a3+], %%d2 \n\t" + +#define MULADDC_STOP \ + "st.w %0, %%d4 \n\t" \ + "st.a %1, %%a3 \n\t" \ + "st.a %2, %%a2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "d0", "d1", "e2", "d4", "a2", "a3" \ + ); + +#endif /* TriCore */ + +/* + * Note, gcc -O0 by default uses r7 for the frame pointer, so it complains about + * our use of r7 below, unless -fomit-frame-pointer is passed. + * + * On the other hand, -fomit-frame-pointer is implied by any -Ox options with + * x !=0, which we can detect using __OPTIMIZE__ (which is also defined by + * clang and armcc5 under the same conditions). + * + * So, only use the optimized assembly below for optimized build, which avoids + * the build error and is pretty reasonable anyway. + */ +#if defined(__GNUC__) && !defined(__OPTIMIZE__) +#define MULADDC_CANNOT_USE_R7 +#endif + +#if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7) + +#if defined(__thumb__) && !defined(__thumb2__) + +#define MULADDC_INIT \ + asm( \ + "ldr r0, %3 \n\t" \ + "ldr r1, %4 \n\t" \ + "ldr r2, %5 \n\t" \ + "ldr r3, %6 \n\t" \ + "lsr r7, r3, #16 \n\t" \ + "mov r9, r7 \n\t" \ + "lsl r7, r3, #16 \n\t" \ + "lsr r7, r7, #16 \n\t" \ + "mov r8, r7 \n\t" + +#define MULADDC_CORE \ + "ldmia r0!, {r6} \n\t" \ + "lsr r7, r6, #16 \n\t" \ + "lsl r6, r6, #16 \n\t" \ + "lsr r6, r6, #16 \n\t" \ + "mov r4, r8 \n\t" \ + "mul r4, r6 \n\t" \ + "mov r3, r9 \n\t" \ + "mul r6, r3 \n\t" \ + "mov r5, r9 \n\t" \ + "mul r5, r7 \n\t" \ + "mov r3, r8 \n\t" \ + "mul r7, r3 \n\t" \ + "lsr r3, r6, #16 \n\t" \ + "add r5, r5, r3 \n\t" \ + "lsr r3, r7, #16 \n\t" \ + "add r5, r5, r3 \n\t" \ + "add r4, r4, r2 \n\t" \ + "mov r2, #0 \n\t" \ + "adc r5, r2 \n\t" \ + "lsl r3, r6, #16 \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r5, r2 \n\t" \ + "lsl r3, r7, #16 \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r5, r2 \n\t" \ + "ldr r3, [r1] \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r2, r5 \n\t" \ + "stmia r1!, {r4} \n\t" + +#define MULADDC_STOP \ + "str r2, %0 \n\t" \ + "str r1, %1 \n\t" \ + "str r0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r0", "r1", "r2", "r3", "r4", "r5", \ + "r6", "r7", "r8", "r9", "cc" \ + ); + +#elif (__ARM_ARCH >= 6) && \ + defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1) + +#define MULADDC_INIT \ + asm( + +#define MULADDC_CORE \ + "ldr r0, [%0], #4 \n\t" \ + "ldr r1, [%1] \n\t" \ + "umaal r1, %2, %3, r0 \n\t" \ + "str r1, [%1], #4 \n\t" + +#define MULADDC_STOP \ + : "=r" (s), "=r" (d), "=r" (c) \ + : "r" (b), "0" (s), "1" (d), "2" (c) \ + : "r0", "r1", "memory" \ + ); + +#else + +#define MULADDC_INIT \ + asm( \ + "ldr r0, %3 \n\t" \ + "ldr r1, %4 \n\t" \ + "ldr r2, %5 \n\t" \ + "ldr r3, %6 \n\t" + +#define MULADDC_CORE \ + "ldr r4, [r0], #4 \n\t" \ + "mov r5, #0 \n\t" \ + "ldr r6, [r1] \n\t" \ + "umlal r2, r5, r3, r4 \n\t" \ + "adds r7, r6, r2 \n\t" \ + "adc r2, r5, #0 \n\t" \ + "str r7, [r1], #4 \n\t" + +#define MULADDC_STOP \ + "str r2, %0 \n\t" \ + "str r1, %1 \n\t" \ + "str r0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r0", "r1", "r2", "r3", "r4", "r5", \ + "r6", "r7", "cc" \ + ); + +#endif /* Thumb */ + +#endif /* ARMv3 */ + +#if defined(__alpha__) + +#define MULADDC_INIT \ + asm( \ + "ldq $1, %3 \n\t" \ + "ldq $2, %4 \n\t" \ + "ldq $3, %5 \n\t" \ + "ldq $4, %6 \n\t" + +#define MULADDC_CORE \ + "ldq $6, 0($1) \n\t" \ + "addq $1, 8, $1 \n\t" \ + "mulq $6, $4, $7 \n\t" \ + "umulh $6, $4, $6 \n\t" \ + "addq $7, $3, $7 \n\t" \ + "cmpult $7, $3, $3 \n\t" \ + "ldq $5, 0($2) \n\t" \ + "addq $7, $5, $7 \n\t" \ + "cmpult $7, $5, $5 \n\t" \ + "stq $7, 0($2) \n\t" \ + "addq $2, 8, $2 \n\t" \ + "addq $6, $3, $3 \n\t" \ + "addq $5, $3, $3 \n\t" + +#define MULADDC_STOP \ + "stq $3, %0 \n\t" \ + "stq $2, %1 \n\t" \ + "stq $1, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \ + ); +#endif /* Alpha */ + +#if defined(__mips__) && !defined(__mips64) + +#define MULADDC_INIT \ + asm( \ + "lw $10, %3 \n\t" \ + "lw $11, %4 \n\t" \ + "lw $12, %5 \n\t" \ + "lw $13, %6 \n\t" + +#define MULADDC_CORE \ + "lw $14, 0($10) \n\t" \ + "multu $13, $14 \n\t" \ + "addi $10, $10, 4 \n\t" \ + "mflo $14 \n\t" \ + "mfhi $9 \n\t" \ + "addu $14, $12, $14 \n\t" \ + "lw $15, 0($11) \n\t" \ + "sltu $12, $14, $12 \n\t" \ + "addu $15, $14, $15 \n\t" \ + "sltu $14, $15, $14 \n\t" \ + "addu $12, $12, $9 \n\t" \ + "sw $15, 0($11) \n\t" \ + "addu $12, $12, $14 \n\t" \ + "addi $11, $11, 4 \n\t" + +#define MULADDC_STOP \ + "sw $12, %0 \n\t" \ + "sw $11, %1 \n\t" \ + "sw $10, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "$9", "$10", "$11", "$12", "$13", "$14", "$15", "lo", "hi" \ + ); + +#endif /* MIPS */ +#endif /* GNUC */ + +#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) + +#define MULADDC_INIT \ + __asm mov esi, s \ + __asm mov edi, d \ + __asm mov ecx, c \ + __asm mov ebx, b + +#define MULADDC_CORE \ + __asm lodsd \ + __asm mul ebx \ + __asm add eax, ecx \ + __asm adc edx, 0 \ + __asm add eax, [edi] \ + __asm adc edx, 0 \ + __asm mov ecx, edx \ + __asm stosd + +#if defined(MBEDTLS_HAVE_SSE2) + +#define EMIT __asm _emit + +#define MULADDC_HUIT \ + EMIT 0x0F EMIT 0x6E EMIT 0xC9 \ + EMIT 0x0F EMIT 0x6E EMIT 0xC3 \ + EMIT 0x0F EMIT 0x6E EMIT 0x1F \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x6E EMIT 0x16 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ + EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xDC \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xEE \ + EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \ + EMIT 0x0F EMIT 0xD4 EMIT 0xFC \ + EMIT 0x0F EMIT 0x7E EMIT 0x0F \ + EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCD \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCF \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCC \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \ + EMIT 0x0F EMIT 0xD4 EMIT 0xDD \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCE \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \ + EMIT 0x83 EMIT 0xC7 EMIT 0x20 \ + EMIT 0x83 EMIT 0xC6 EMIT 0x20 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x7E EMIT 0xC9 + +#define MULADDC_STOP \ + EMIT 0x0F EMIT 0x77 \ + __asm mov c, ecx \ + __asm mov d, edi \ + __asm mov s, esi \ + +#else + +#define MULADDC_STOP \ + __asm mov c, ecx \ + __asm mov d, edi \ + __asm mov s, esi \ + +#endif /* SSE2 */ +#endif /* MSVC */ + +#endif /* MBEDTLS_HAVE_ASM */ + +#if !defined(MULADDC_CORE) +#if defined(MBEDTLS_HAVE_UDBL) + +#define MULADDC_INIT \ +{ \ + mbedtls_t_udbl r; \ + mbedtls_mpi_uint r0, r1; + +#define MULADDC_CORE \ + r = *(s++) * (mbedtls_t_udbl) b; \ + r0 = (mbedtls_mpi_uint) r; \ + r1 = (mbedtls_mpi_uint)( r >> biL ); \ + r0 += c; r1 += (r0 < c); \ + r0 += *d; r1 += (r0 < *d); \ + c = r1; *(d++) = r0; + +#define MULADDC_STOP \ +} + +#else +#define MULADDC_INIT \ +{ \ + mbedtls_mpi_uint s0, s1, b0, b1; \ + mbedtls_mpi_uint r0, r1, rx, ry; \ + b0 = ( b << biH ) >> biH; \ + b1 = ( b >> biH ); + +#define MULADDC_CORE \ + s0 = ( *s << biH ) >> biH; \ + s1 = ( *s >> biH ); s++; \ + rx = s0 * b1; r0 = s0 * b0; \ + ry = s1 * b0; r1 = s1 * b1; \ + r1 += ( rx >> biH ); \ + r1 += ( ry >> biH ); \ + rx <<= biH; ry <<= biH; \ + r0 += rx; r1 += (r0 < rx); \ + r0 += ry; r1 += (r0 < ry); \ + r0 += c; r1 += (r0 < c); \ + r0 += *d; r1 += (r0 < *d); \ + c = r1; *(d++) = r0; + +#define MULADDC_STOP \ +} + +#endif /* C (generic) */ +#endif /* C (longlong) */ + +#endif /* bn_mul.h */ |