1 | /*
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2 | * Copyright (C) 2005 Jakub Vana
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * - Redistributions of source code must retain the above copyright
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10 | * notice, this list of conditions and the following disclaimer.
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11 | * - Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * - The name of the author may not be used to endorse or promote products
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15 | * derived from this software without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | *
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28 | */
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29 |
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30 | #include <fpu_context.h>
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31 |
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32 | void fpu_context_save(fpu_context_t *fctx){
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33 | asm volatile(
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34 | "stf.spill [%2]=f2,0x80\n"
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35 | "stf.spill [%3]=f3,0x80\n"
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36 | "stf.spill [%4]=f4,0x80\n"
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37 | "stf.spill [%5]=f5,0x80\n"
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38 | "stf.spill [%6]=f6,0x80\n"
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39 | "stf.spill [%7]=f7,0x80\n;;"
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40 |
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41 | "stf.spill [%0]=f8,0x80\n"
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42 | "stf.spill [%1]=f9,0x80\n"
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43 | "stf.spill [%2]=f10,0x80\n"
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44 | "stf.spill [%3]=f11,0x80\n"
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45 | "stf.spill [%4]=f12,0x80\n"
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46 | "stf.spill [%5]=f13,0x80\n"
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47 | "stf.spill [%6]=f14,0x80\n"
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48 | "stf.spill [%7]=f15,0x80\n;;"
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49 |
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50 | "stf.spill [%0]=f16,0x80\n"
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51 | "stf.spill [%1]=f17,0x80\n"
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52 | "stf.spill [%2]=f18,0x80\n"
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53 | "stf.spill [%3]=f19,0x80\n"
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54 | "stf.spill [%4]=f20,0x80\n"
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55 | "stf.spill [%5]=f21,0x80\n"
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56 | "stf.spill [%6]=f22,0x80\n"
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57 | "stf.spill [%7]=f23,0x80\n;;"
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58 |
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59 | "stf.spill [%0]=f24,0x80\n"
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60 | "stf.spill [%1]=f25,0x80\n"
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61 | "stf.spill [%2]=f26,0x80\n"
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62 | "stf.spill [%3]=f27,0x80\n"
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63 | "stf.spill [%4]=f28,0x80\n"
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64 | "stf.spill [%5]=f29,0x80\n"
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65 | "stf.spill [%6]=f30,0x80\n"
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66 | "stf.spill [%7]=f31,0x80\n;;"
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67 |
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68 |
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69 | "stf.spill [%0]=f32,0x80\n"
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70 | "stf.spill [%1]=f33,0x80\n"
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71 | "stf.spill [%2]=f34,0x80\n"
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72 | "stf.spill [%3]=f35,0x80\n"
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73 | "stf.spill [%4]=f36,0x80\n"
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74 | "stf.spill [%5]=f37,0x80\n"
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75 | "stf.spill [%6]=f38,0x80\n"
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76 | "stf.spill [%7]=f39,0x80\n;;"
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77 |
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78 | "stf.spill [%0]=f40,0x80\n"
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79 | "stf.spill [%1]=f41,0x80\n"
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80 | "stf.spill [%2]=f42,0x80\n"
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81 | "stf.spill [%3]=f43,0x80\n"
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82 | "stf.spill [%4]=f44,0x80\n"
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83 | "stf.spill [%5]=f45,0x80\n"
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84 | "stf.spill [%6]=f46,0x80\n"
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85 | "stf.spill [%7]=f47,0x80\n;;"
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86 |
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87 | "stf.spill [%0]=f48,0x80\n"
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88 | "stf.spill [%1]=f49,0x80\n"
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89 | "stf.spill [%2]=f50,0x80\n"
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90 | "stf.spill [%3]=f51,0x80\n"
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91 | "stf.spill [%4]=f52,0x80\n"
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92 | "stf.spill [%5]=f53,0x80\n"
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93 | "stf.spill [%6]=f54,0x80\n"
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94 | "stf.spill [%7]=f55,0x80\n;;"
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95 |
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96 | "stf.spill [%0]=f56,0x80\n"
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97 | "stf.spill [%1]=f57,0x80\n"
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98 | "stf.spill [%2]=f58,0x80\n"
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99 | "stf.spill [%3]=f59,0x80\n"
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100 | "stf.spill [%4]=f60,0x80\n"
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101 | "stf.spill [%5]=f61,0x80\n"
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102 | "stf.spill [%6]=f62,0x80\n"
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103 | "stf.spill [%7]=f63,0x80\n;;"
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104 |
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105 | "stf.spill [%0]=f64,0x80\n"
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106 | "stf.spill [%1]=f65,0x80\n"
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107 | "stf.spill [%2]=f66,0x80\n"
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108 | "stf.spill [%3]=f67,0x80\n"
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109 | "stf.spill [%4]=f68,0x80\n"
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110 | "stf.spill [%5]=f69,0x80\n"
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111 | "stf.spill [%6]=f70,0x80\n"
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112 | "stf.spill [%7]=f71,0x80\n;;"
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113 |
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114 | "stf.spill [%0]=f72,0x80\n"
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115 | "stf.spill [%1]=f73,0x80\n"
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116 | "stf.spill [%2]=f74,0x80\n"
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117 | "stf.spill [%3]=f75,0x80\n"
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118 | "stf.spill [%4]=f76,0x80\n"
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119 | "stf.spill [%5]=f77,0x80\n"
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120 | "stf.spill [%6]=f78,0x80\n"
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121 | "stf.spill [%7]=f79,0x80\n;;"
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122 |
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123 | "stf.spill [%0]=f80,0x80\n"
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124 | "stf.spill [%1]=f81,0x80\n"
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125 | "stf.spill [%2]=f82,0x80\n"
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126 | "stf.spill [%3]=f83,0x80\n"
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127 | "stf.spill [%4]=f84,0x80\n"
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128 | "stf.spill [%5]=f85,0x80\n"
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129 | "stf.spill [%6]=f86,0x80\n"
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130 | "stf.spill [%7]=f87,0x80\n;;"
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131 |
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132 | "stf.spill [%0]=f88,0x80\n"
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133 | "stf.spill [%1]=f89,0x80\n"
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134 | "stf.spill [%2]=f90,0x80\n"
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135 | "stf.spill [%3]=f91,0x80\n"
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136 | "stf.spill [%4]=f92,0x80\n"
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137 | "stf.spill [%5]=f93,0x80\n"
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138 | "stf.spill [%6]=f94,0x80\n"
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139 | "stf.spill [%7]=f95,0x80\n;;"
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140 |
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141 |
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142 | "stf.spill [%0]=f96,0x80\n"
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143 | "stf.spill [%1]=f97,0x80\n"
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144 | "stf.spill [%2]=f98,0x80\n"
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145 | "stf.spill [%3]=f99,0x80\n"
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146 | "stf.spill [%4]=f100,0x80\n"
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147 | "stf.spill [%5]=f101,0x80\n"
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148 | "stf.spill [%6]=f102,0x80\n"
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149 | "stf.spill [%7]=f103,0x80\n;;"
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150 |
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151 | "stf.spill [%0]=f104,0x80\n"
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152 | "stf.spill [%1]=f105,0x80\n"
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153 | "stf.spill [%2]=f106,0x80\n"
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154 | "stf.spill [%3]=f107,0x80\n"
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155 | "stf.spill [%4]=f108,0x80\n"
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156 | "stf.spill [%5]=f109,0x80\n"
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157 | "stf.spill [%6]=f110,0x80\n"
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158 | "stf.spill [%7]=f111,0x80\n;;"
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159 |
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160 | "stf.spill [%0]=f112,0x80\n"
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161 | "stf.spill [%1]=f113,0x80\n"
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162 | "stf.spill [%2]=f114,0x80\n"
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163 | "stf.spill [%3]=f115,0x80\n"
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164 | "stf.spill [%4]=f116,0x80\n"
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165 | "stf.spill [%5]=f117,0x80\n"
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166 | "stf.spill [%6]=f118,0x80\n"
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167 | "stf.spill [%7]=f119,0x80\n;;"
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168 |
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169 | "stf.spill [%0]=f120,0x80\n"
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170 | "stf.spill [%1]=f121,0x80\n"
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171 | "stf.spill [%2]=f122,0x80\n"
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172 | "stf.spill [%3]=f123,0x80\n"
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173 | "stf.spill [%4]=f124,0x80\n"
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174 | "stf.spill [%5]=f125,0x80\n"
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175 | "stf.spill [%6]=f126,0x80\n"
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176 | "stf.spill [%7]=f127,0x80\n;;"
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177 |
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178 |
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179 | :
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180 | :"r" (&((fctx->fr)[0])),"r" (&((fctx->fr)[1])),"r" (&((fctx->fr)[2])),"r" (&((fctx->fr)[3])),
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181 | "r" (&((fctx->fr)[4])),"r" (&((fctx->fr)[5])),"r" (&((fctx->fr)[6])),"r" (&((fctx->fr)[7]))
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182 | );
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183 |
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184 | }
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185 |
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186 |
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187 | void fpu_context_restore(fpu_context_t *fctx)
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188 | {
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189 |
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190 | asm volatile(
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191 | "ldf.fill f2=[%2],0x80\n"
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192 | "ldf.fill f3=[%3],0x80\n"
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193 | "ldf.fill f4=[%4],0x80\n"
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194 | "ldf.fill f5=[%5],0x80\n"
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195 | "ldf.fill f6=[%6],0x80\n"
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196 | "ldf.fill f7=[%7],0x80\n;;"
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197 |
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198 | "ldf.fill f8=[%0],0x80\n"
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199 | "ldf.fill f9=[%1],0x80\n"
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200 | "ldf.fill f10=[%2],0x80\n"
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201 | "ldf.fill f11=[%3],0x80\n"
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202 | "ldf.fill f12=[%4],0x80\n"
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203 | "ldf.fill f13=[%5],0x80\n"
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204 | "ldf.fill f14=[%6],0x80\n"
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205 | "ldf.fill f15=[%7],0x80\n;;"
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206 |
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207 | "ldf.fill f16=[%0],0x80\n"
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208 | "ldf.fill f17=[%1],0x80\n"
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209 | "ldf.fill f18=[%2],0x80\n"
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210 | "ldf.fill f19=[%3],0x80\n"
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211 | "ldf.fill f20=[%4],0x80\n"
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212 | "ldf.fill f21=[%5],0x80\n"
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213 | "ldf.fill f22=[%6],0x80\n"
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214 | "ldf.fill f23=[%7],0x80\n;;"
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215 |
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216 | "ldf.fill f24=[%0],0x80\n"
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217 | "ldf.fill f25=[%1],0x80\n"
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218 | "ldf.fill f26=[%2],0x80\n"
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219 | "ldf.fill f27=[%3],0x80\n"
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220 | "ldf.fill f28=[%4],0x80\n"
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221 | "ldf.fill f29=[%5],0x80\n"
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222 | "ldf.fill f30=[%6],0x80\n"
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223 | "ldf.fill f31=[%7],0x80\n;;"
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224 |
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225 |
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226 | "ldf.fill f32=[%0],0x80\n"
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227 | "ldf.fill f33=[%1],0x80\n"
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228 | "ldf.fill f34=[%2],0x80\n"
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229 | "ldf.fill f35=[%3],0x80\n"
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230 | "ldf.fill f36=[%4],0x80\n"
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231 | "ldf.fill f37=[%5],0x80\n"
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232 | "ldf.fill f38=[%6],0x80\n"
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233 | "ldf.fill f39=[%7],0x80\n;;"
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234 |
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235 | "ldf.fill f40=[%0],0x80\n"
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236 | "ldf.fill f41=[%1],0x80\n"
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237 | "ldf.fill f42=[%2],0x80\n"
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238 | "ldf.fill f43=[%3],0x80\n"
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239 | "ldf.fill f44=[%4],0x80\n"
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240 | "ldf.fill f45=[%5],0x80\n"
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241 | "ldf.fill f46=[%6],0x80\n"
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242 | "ldf.fill f47=[%7],0x80\n;;"
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243 |
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244 | "ldf.fill f48=[%0],0x80\n"
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245 | "ldf.fill f49=[%1],0x80\n"
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246 | "ldf.fill f50=[%2],0x80\n"
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247 | "ldf.fill f51=[%3],0x80\n"
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248 | "ldf.fill f52=[%4],0x80\n"
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249 | "ldf.fill f53=[%5],0x80\n"
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250 | "ldf.fill f54=[%6],0x80\n"
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251 | "ldf.fill f55=[%7],0x80\n;;"
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252 |
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253 | "ldf.fill f56=[%0],0x80\n"
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254 | "ldf.fill f57=[%1],0x80\n"
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255 | "ldf.fill f58=[%2],0x80\n"
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256 | "ldf.fill f59=[%3],0x80\n"
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257 | "ldf.fill f60=[%4],0x80\n"
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258 | "ldf.fill f61=[%5],0x80\n"
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259 | "ldf.fill f62=[%6],0x80\n"
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260 | "ldf.fill f63=[%7],0x80\n;;"
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261 |
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262 | "ldf.fill f64=[%0],0x80\n"
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263 | "ldf.fill f65=[%1],0x80\n"
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264 | "ldf.fill f66=[%2],0x80\n"
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265 | "ldf.fill f67=[%3],0x80\n"
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266 | "ldf.fill f68=[%4],0x80\n"
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267 | "ldf.fill f69=[%5],0x80\n"
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268 | "ldf.fill f70=[%6],0x80\n"
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269 | "ldf.fill f71=[%7],0x80\n;;"
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270 |
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271 | "ldf.fill f72=[%0],0x80\n"
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272 | "ldf.fill f73=[%1],0x80\n"
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273 | "ldf.fill f74=[%2],0x80\n"
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274 | "ldf.fill f75=[%3],0x80\n"
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275 | "ldf.fill f76=[%4],0x80\n"
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276 | "ldf.fill f77=[%5],0x80\n"
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277 | "ldf.fill f78=[%6],0x80\n"
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278 | "ldf.fill f79=[%7],0x80\n;;"
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279 |
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280 | "ldf.fill f80=[%0],0x80\n"
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281 | "ldf.fill f81=[%1],0x80\n"
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282 | "ldf.fill f82=[%2],0x80\n"
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283 | "ldf.fill f83=[%3],0x80\n"
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284 | "ldf.fill f84=[%4],0x80\n"
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285 | "ldf.fill f85=[%5],0x80\n"
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286 | "ldf.fill f86=[%6],0x80\n"
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287 | "ldf.fill f87=[%7],0x80\n;;"
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288 |
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289 | "ldf.fill f88=[%0],0x80\n"
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290 | "ldf.fill f89=[%1],0x80\n"
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291 | "ldf.fill f90=[%2],0x80\n"
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292 | "ldf.fill f91=[%3],0x80\n"
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293 | "ldf.fill f92=[%4],0x80\n"
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294 | "ldf.fill f93=[%5],0x80\n"
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295 | "ldf.fill f94=[%6],0x80\n"
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296 | "ldf.fill f95=[%7],0x80\n;;"
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297 |
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298 |
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299 | "ldf.fill f96=[%0],0x80\n"
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300 | "ldf.fill f97=[%1],0x80\n"
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301 | "ldf.fill f98=[%2],0x80\n"
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302 | "ldf.fill f99=[%3],0x80\n"
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303 | "ldf.fill f100=[%4],0x80\n"
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304 | "ldf.fill f101=[%5],0x80\n"
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305 | "ldf.fill f102=[%6],0x80\n"
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306 | "ldf.fill f103=[%7],0x80\n;;"
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307 |
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308 | "ldf.fill f104=[%0],0x80\n"
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309 | "ldf.fill f105=[%1],0x80\n"
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310 | "ldf.fill f106=[%2],0x80\n"
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311 | "ldf.fill f107=[%3],0x80\n"
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312 | "ldf.fill f108=[%4],0x80\n"
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313 | "ldf.fill f109=[%5],0x80\n"
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314 | "ldf.fill f110=[%6],0x80\n"
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315 | "ldf.fill f111=[%7],0x80\n;;"
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316 |
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317 | "ldf.fill f112=[%0],0x80\n"
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318 | "ldf.fill f113=[%1],0x80\n"
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319 | "ldf.fill f114=[%2],0x80\n"
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320 | "ldf.fill f115=[%3],0x80\n"
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321 | "ldf.fill f116=[%4],0x80\n"
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322 | "ldf.fill f117=[%5],0x80\n"
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323 | "ldf.fill f118=[%6],0x80\n"
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324 | "ldf.fill f119=[%7],0x80\n;;"
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325 |
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326 | "ldf.fill f120=[%0],0x80\n"
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327 | "ldf.fill f121=[%1],0x80\n"
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328 | "ldf.fill f122=[%2],0x80\n"
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329 | "ldf.fill f123=[%3],0x80\n"
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330 | "ldf.fill f124=[%4],0x80\n"
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331 | "ldf.fill f125=[%5],0x80\n"
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332 | "ldf.fill f126=[%6],0x80\n"
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333 | "ldf.fill f127=[%7],0x80\n;;"
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334 |
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335 |
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336 | :
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337 | :"r" (&((fctx->fr)[0])),"r" (&((fctx->fr)[1])),"r" (&((fctx->fr)[2])),"r" (&((fctx->fr)[3])),
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338 | "r" (&((fctx->fr)[4])),"r" (&((fctx->fr)[5])),"r" (&((fctx->fr)[6])),"r" (&((fctx->fr)[7]))
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339 | );
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340 |
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341 |
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342 | }
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343 |
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344 |
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345 |
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