Mercurial > trustbridge > nss-cmake-static
comparison nss/lib/freebl/mpi/mpi_arm.c @ 0:1e5118fa0cb1
This is NSS with a Cmake Buildsyste
To compile a static NSS library for Windows we've used the
Chromium-NSS fork and added a Cmake buildsystem to compile
it statically for Windows. See README.chromium for chromium
changes and README.trustbridge for our modifications.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
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| date | Mon, 28 Jul 2014 10:47:06 +0200 |
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| -1:000000000000 | 0:1e5118fa0cb1 |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 /* This inlined version is for 32-bit ARM platform only */ | |
| 6 | |
| 7 #if !defined(__arm__) | |
| 8 #error "This is for ARM only" | |
| 9 #endif | |
| 10 | |
| 11 /* 16-bit thumb doesn't work inlined assember version */ | |
| 12 #if (!defined(__thumb__) || defined(__thumb2__)) && !defined(__ARM_ARCH_3__) | |
| 13 | |
| 14 #include "mpi-priv.h" | |
| 15 | |
| 16 #ifdef MP_ASSEMBLY_MULTIPLY | |
| 17 void s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) | |
| 18 { | |
| 19 __asm__ __volatile__( | |
| 20 "mov r5, #0\n" | |
| 21 #ifdef __thumb2__ | |
| 22 "cbz %1, 2f\n" | |
| 23 #else | |
| 24 "cmp %1, r5\n" /* r5 is 0 now */ | |
| 25 "beq 2f\n" | |
| 26 #endif | |
| 27 | |
| 28 "1:\n" | |
| 29 "mov r4, #0\n" | |
| 30 "ldr r6, [%0], #4\n" | |
| 31 "umlal r5, r4, r6, %2\n" | |
| 32 "str r5, [%3], #4\n" | |
| 33 "mov r5, r4\n" | |
| 34 | |
| 35 "subs %1, #1\n" | |
| 36 "bne 1b\n" | |
| 37 | |
| 38 "2:\n" | |
| 39 "str r5, [%3]\n" | |
| 40 : | |
| 41 : "r"(a), "r"(a_len), "r"(b), "r"(c) | |
| 42 : "memory", "cc", "%r4", "%r5", "%r6"); | |
| 43 } | |
| 44 | |
| 45 void s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) | |
| 46 { | |
| 47 __asm__ __volatile__( | |
| 48 "mov r5, #0\n" | |
| 49 #ifdef __thumb2__ | |
| 50 "cbz %1, 2f\n" | |
| 51 #else | |
| 52 "cmp %1, r5\n" /* r5 is 0 now */ | |
| 53 "beq 2f\n" | |
| 54 #endif | |
| 55 | |
| 56 "1:\n" | |
| 57 "mov r4, #0\n" | |
| 58 "ldr r6, [%3]\n" | |
| 59 "adds r5, r6\n" | |
| 60 "adc r4, r4, #0\n" | |
| 61 | |
| 62 "ldr r6, [%0], #4\n" | |
| 63 "umlal r5, r4, r6, %2\n" | |
| 64 "str r5, [%3], #4\n" | |
| 65 "mov r5, r4\n" | |
| 66 | |
| 67 "subs %1, #1\n" | |
| 68 "bne 1b\n" | |
| 69 | |
| 70 "2:\n" | |
| 71 "str r5, [%3]\n" | |
| 72 : | |
| 73 : "r"(a), "r"(a_len), "r"(b), "r"(c) | |
| 74 : "memory", "cc", "%r4", "%r5", "%r6"); | |
| 75 } | |
| 76 | |
| 77 void s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) | |
| 78 { | |
| 79 if (!a_len) | |
| 80 return; | |
| 81 | |
| 82 __asm__ __volatile__( | |
| 83 "mov r5, #0\n" | |
| 84 | |
| 85 "1:\n" | |
| 86 "mov r4, #0\n" | |
| 87 "ldr r6, [%3]\n" | |
| 88 "adds r5, r6\n" | |
| 89 "adc r4, r4, #0\n" | |
| 90 "ldr r6, [%0], #4\n" | |
| 91 "umlal r5, r4, r6, %2\n" | |
| 92 "str r5, [%3], #4\n" | |
| 93 "mov r5, r4\n" | |
| 94 | |
| 95 "subs %1, #1\n" | |
| 96 "bne 1b\n" | |
| 97 | |
| 98 #ifdef __thumb2__ | |
| 99 "cbz r4, 3f\n" | |
| 100 #else | |
| 101 "cmp r4, #0\n" | |
| 102 "beq 3f\n" | |
| 103 #endif | |
| 104 | |
| 105 "2:\n" | |
| 106 "mov r4, #0\n" | |
| 107 "ldr r6, [%3]\n" | |
| 108 "adds r5, r6\n" | |
| 109 "adc r4, r4, #0\n" | |
| 110 "str r5, [%3], #4\n" | |
| 111 "movs r5, r4\n" | |
| 112 "bne 2b\n" | |
| 113 | |
| 114 "3:\n" | |
| 115 : | |
| 116 : "r"(a), "r"(a_len), "r"(b), "r"(c) | |
| 117 : "memory", "cc", "%r4", "%r5", "%r6"); | |
| 118 } | |
| 119 #endif | |
| 120 | |
| 121 #ifdef MP_ASSEMBLY_SQUARE | |
| 122 void s_mpv_sqr_add_prop(const mp_digit *pa, mp_size a_len, mp_digit *ps) | |
| 123 { | |
| 124 if (!a_len) | |
| 125 return; | |
| 126 | |
| 127 __asm__ __volatile__( | |
| 128 "mov r3, #0\n" | |
| 129 | |
| 130 "1:\n" | |
| 131 "mov r4, #0\n" | |
| 132 "ldr r6, [%0], #4\n" | |
| 133 "ldr r5, [%2]\n" | |
| 134 "adds r3, r5\n" | |
| 135 "adc r4, r4, #0\n" | |
| 136 "umlal r3, r4, r6, r6\n" /* w = r3:r4 */ | |
| 137 "str r3, [%2], #4\n" | |
| 138 | |
| 139 "ldr r5, [%2]\n" | |
| 140 "adds r3, r4, r5\n" | |
| 141 "mov r4, #0\n" | |
| 142 "adc r4, r4, #0\n" | |
| 143 "str r3, [%2], #4\n" | |
| 144 "mov r3, r4\n" | |
| 145 | |
| 146 "subs %1, #1\n" | |
| 147 "bne 1b\n" | |
| 148 | |
| 149 #ifdef __thumb2__ | |
| 150 "cbz r3, 3f\n" | |
| 151 #else | |
| 152 "cmp r3, #0\n" | |
| 153 "beq 3f\n" | |
| 154 #endif | |
| 155 | |
| 156 "2:\n" | |
| 157 "mov r4, #0\n" | |
| 158 "ldr r5, [%2]\n" | |
| 159 "adds r3, r5\n" | |
| 160 "adc r4, r4, #0\n" | |
| 161 "str r3, [%2], #4\n" | |
| 162 "movs r3, r4\n" | |
| 163 "bne 2b\n" | |
| 164 | |
| 165 "3:" | |
| 166 : | |
| 167 : "r"(pa), "r"(a_len), "r"(ps) | |
| 168 : "memory", "cc", "%r3", "%r4", "%r5", "%r6"); | |
| 169 } | |
| 170 #endif | |
| 171 #endif |