Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/freebl/mpi/mpi_arm.c @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5 /* This inlined version is for 32-bit ARM platform only */
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6
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7 #if !defined(__arm__)
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8 #error "This is for ARM only"
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9 #endif
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10
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11 /* 16-bit thumb doesn't work inlined assember version */
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12 #if (!defined(__thumb__) || defined(__thumb2__)) && !defined(__ARM_ARCH_3__)
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13
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14 #include "mpi-priv.h"
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15
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16 #ifdef MP_ASSEMBLY_MULTIPLY
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17 void s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
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18 {
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19 __asm__ __volatile__(
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20 "mov r5, #0\n"
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21 #ifdef __thumb2__
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22 "cbz %1, 2f\n"
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23 #else
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24 "cmp %1, r5\n" /* r5 is 0 now */
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25 "beq 2f\n"
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26 #endif
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27
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28 "1:\n"
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29 "mov r4, #0\n"
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30 "ldr r6, [%0], #4\n"
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31 "umlal r5, r4, r6, %2\n"
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32 "str r5, [%3], #4\n"
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33 "mov r5, r4\n"
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34
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35 "subs %1, #1\n"
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36 "bne 1b\n"
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37
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38 "2:\n"
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39 "str r5, [%3]\n"
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40 :
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41 : "r"(a), "r"(a_len), "r"(b), "r"(c)
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42 : "memory", "cc", "%r4", "%r5", "%r6");
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43 }
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44
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45 void s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
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46 {
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47 __asm__ __volatile__(
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48 "mov r5, #0\n"
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49 #ifdef __thumb2__
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50 "cbz %1, 2f\n"
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51 #else
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52 "cmp %1, r5\n" /* r5 is 0 now */
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53 "beq 2f\n"
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54 #endif
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55
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56 "1:\n"
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57 "mov r4, #0\n"
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58 "ldr r6, [%3]\n"
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59 "adds r5, r6\n"
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60 "adc r4, r4, #0\n"
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61
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62 "ldr r6, [%0], #4\n"
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63 "umlal r5, r4, r6, %2\n"
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64 "str r5, [%3], #4\n"
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65 "mov r5, r4\n"
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66
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67 "subs %1, #1\n"
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68 "bne 1b\n"
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69
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70 "2:\n"
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71 "str r5, [%3]\n"
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72 :
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73 : "r"(a), "r"(a_len), "r"(b), "r"(c)
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74 : "memory", "cc", "%r4", "%r5", "%r6");
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75 }
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76
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77 void s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
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78 {
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79 if (!a_len)
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80 return;
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81
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82 __asm__ __volatile__(
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83 "mov r5, #0\n"
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84
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85 "1:\n"
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86 "mov r4, #0\n"
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87 "ldr r6, [%3]\n"
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88 "adds r5, r6\n"
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89 "adc r4, r4, #0\n"
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90 "ldr r6, [%0], #4\n"
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91 "umlal r5, r4, r6, %2\n"
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92 "str r5, [%3], #4\n"
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93 "mov r5, r4\n"
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94
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95 "subs %1, #1\n"
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96 "bne 1b\n"
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97
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98 #ifdef __thumb2__
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99 "cbz r4, 3f\n"
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100 #else
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101 "cmp r4, #0\n"
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102 "beq 3f\n"
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103 #endif
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104
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105 "2:\n"
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106 "mov r4, #0\n"
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107 "ldr r6, [%3]\n"
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108 "adds r5, r6\n"
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109 "adc r4, r4, #0\n"
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110 "str r5, [%3], #4\n"
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111 "movs r5, r4\n"
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112 "bne 2b\n"
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113
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114 "3:\n"
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115 :
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116 : "r"(a), "r"(a_len), "r"(b), "r"(c)
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117 : "memory", "cc", "%r4", "%r5", "%r6");
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118 }
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119 #endif
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120
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121 #ifdef MP_ASSEMBLY_SQUARE
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122 void s_mpv_sqr_add_prop(const mp_digit *pa, mp_size a_len, mp_digit *ps)
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123 {
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124 if (!a_len)
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125 return;
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126
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127 __asm__ __volatile__(
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128 "mov r3, #0\n"
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129
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130 "1:\n"
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
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131 "mov r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
132 "ldr r6, [%0], #4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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133 "ldr r5, [%2]\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
134 "adds r3, r5\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
135 "adc r4, r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
136 "umlal r3, r4, r6, r6\n" /* w = r3:r4 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
137 "str r3, [%2], #4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
138
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
139 "ldr r5, [%2]\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
140 "adds r3, r4, r5\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
141 "mov r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
142 "adc r4, r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143 "str r3, [%2], #4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
144 "mov r3, r4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146 "subs %1, #1\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
147 "bne 1b\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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148
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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149 #ifdef __thumb2__
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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150 "cbz r3, 3f\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
151 #else
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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152 "cmp r3, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
153 "beq 3f\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
154 #endif
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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155
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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156 "2:\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
157 "mov r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
158 "ldr r5, [%2]\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
159 "adds r3, r5\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
160 "adc r4, r4, #0\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 "str r3, [%2], #4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
162 "movs r3, r4\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
163 "bne 2b\n"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
164
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
165 "3:"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
166 :
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
167 : "r"(pa), "r"(a_len), "r"(ps)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
168 : "memory", "cc", "%r3", "%r4", "%r5", "%r6");
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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169 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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170 #endif
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
171 #endif
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