1 | /** @file
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2 | * IPRT - AMD64 and x86 Specific Assembly Functions, 32-bit Watcom C pragma aux.
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2015 Oracle Corporation
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * The contents of this file may alternatively be used under the terms
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17 | * of the Common Development and Distribution License Version 1.0
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18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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19 | * VirtualBox OSE distribution, in which case the provisions of the
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20 | * CDDL are applicable instead of those of the GPL.
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21 | *
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22 | * You may elect to license modified versions of this file under the
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23 | * terms and conditions of either the GPL or the CDDL or both.
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24 | */
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25 |
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26 | #ifndef ___iprt_asm_amd64_x86_h
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27 | # error "Don't include this header directly."
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28 | #endif
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29 | #ifndef ___iprt_asm_amd64_x86_watcom_32_h
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30 | #define ___iprt_asm_amd64_x86_watcom_32_h
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31 |
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32 | #ifndef __FLAT__
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33 | # error "Only works with flat pointers! (-mf)"
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34 | #endif
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35 |
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36 |
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37 | #pragma aux ASMGetIDTR = \
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38 | "sidt fword ptr [ecx]" \
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39 | parm [ecx] \
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40 | modify exact [];
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41 |
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42 | #pragma aux ASMGetIdtrLimit = \
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43 | "sub esp, 8" \
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44 | "sidt fword ptr [esp]" \
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45 | "mov cx, [esp]" \
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46 | "add esp, 8" \
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47 | parm [] \
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48 | value [cx] \
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49 | modify exact [ecx];
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50 |
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51 | #pragma aux ASMSetIDTR = \
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52 | "lidt fword ptr [ecx]" \
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53 | parm [ecx] nomemory \
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54 | modify nomemory;
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55 |
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56 | #pragma aux ASMGetGDTR = \
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57 | "sgdt fword ptr [ecx]" \
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58 | parm [ecx] \
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59 | modify exact [];
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60 |
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61 | #pragma aux ASMSetGDTR = \
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62 | "lgdt fword ptr [ecx]" \
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63 | parm [ecx] nomemory \
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64 | modify exact [] nomemory;
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65 |
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66 | #pragma aux ASMGetCS = \
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67 | "mov ax, cs" \
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68 | parm [] nomemory \
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69 | value [ax] \
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70 | modify exact [eax] nomemory;
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71 |
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72 | #pragma aux ASMGetDS = \
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73 | "mov ax, ds" \
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74 | parm [] nomemory \
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75 | value [ax] \
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76 | modify exact [eax] nomemory;
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77 |
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78 | #pragma aux ASMGetES = \
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79 | "mov ax, es" \
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80 | parm [] nomemory \
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81 | value [ax] \
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82 | modify exact [eax] nomemory;
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83 |
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84 | #pragma aux ASMGetFS = \
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85 | "mov ax, fs" \
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86 | parm [] nomemory \
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87 | value [ax] \
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88 | modify exact [eax] nomemory;
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89 |
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90 | #pragma aux ASMGetGS = \
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91 | "mov ax, gs" \
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92 | parm [] nomemory \
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93 | value [ax] \
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94 | modify exact [eax] nomemory;
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95 |
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96 | #pragma aux ASMGetSS = \
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97 | "mov ax, ss" \
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98 | parm [] nomemory \
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99 | value [ax] \
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100 | modify exact [eax] nomemory;
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101 |
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102 | #pragma aux ASMGetTR = \
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103 | "str ax" \
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104 | parm [] nomemory \
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105 | value [ax] \
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106 | modify exact [eax] nomemory;
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107 |
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108 | #pragma aux ASMGetLDTR = \
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109 | "sldt ax" \
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110 | parm [] nomemory \
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111 | value [ax] \
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112 | modify exact [eax] nomemory;
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113 |
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114 | /** @todo ASMGetSegAttr */
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115 |
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116 | #pragma aux ASMGetFlags = \
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117 | "pushfd" \
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118 | "pop eax" \
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119 | parm [] nomemory \
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120 | value [eax] \
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121 | modify exact [eax] nomemory;
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122 |
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123 | #pragma aux ASMSetFlags = \
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124 | "push eax" \
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125 | "popfd" \
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126 | parm [eax] nomemory \
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127 | modify exact [] nomemory;
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128 |
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129 | #pragma aux ASMChangeFlags = \
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130 | "pushfd" \
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131 | "pop eax" \
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132 | "and edx, eax" \
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133 | "or edx, ecx" \
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134 | "push edx" \
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135 | "popfd" \
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136 | parm [edx] [ecx] nomemory \
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137 | value [eax] \
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138 | modify exact [edx] nomemory;
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139 |
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140 | #pragma aux ASMAddFlags = \
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141 | "pushfd" \
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142 | "pop eax" \
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143 | "or edx, eax" \
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144 | "push edx" \
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145 | "popfd" \
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146 | parm [edx] nomemory \
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147 | value [eax] \
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148 | modify exact [edx] nomemory;
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149 |
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150 | #pragma aux ASMClearFlags = \
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151 | "pushfd" \
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152 | "pop eax" \
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153 | "and edx, eax" \
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154 | "push edx" \
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155 | "popfd" \
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156 | parm [edx] nomemory \
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157 | value [eax] \
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158 | modify exact [edx] nomemory;
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159 |
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160 | /* Note! Must use the 64-bit integer return value convension.
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161 | The order of registers in the value [set] does not seem to mean anything. */
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162 | #pragma aux ASMReadTSC = \
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163 | ".586" \
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164 | "rdtsc" \
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165 | parm [] nomemory \
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166 | value [eax edx] \
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167 | modify exact [edx eax] nomemory;
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168 |
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169 | #pragma aux ASMReadTscWithAux = \
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170 | 0x0f 0x01 0xf9 \
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171 | parm [ecx] \
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172 | value [eax edx] \
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173 | modify exact [eax edx];
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174 |
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175 | /* ASMCpuId: Implemented externally, too many parameters. */
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176 | /* ASMCpuId_Idx_ECX: Implemented externally, too many parameters. */
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177 | /* ASMCpuIdExSlow: Always implemented externally. */
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178 |
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179 | #pragma aux ASMCpuId_ECX_EDX = \
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180 | "cpuid" \
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181 | "mov [edi], ecx" \
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182 | "mov [esi], edx" \
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183 | parm [ecx] [edi] [esi] \
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184 | modify exact [eax ebx ecx edx];
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185 |
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186 | #pragma aux ASMCpuId_EAX = \
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187 | "cpuid" \
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188 | parm [ecx] \
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189 | value [eax] \
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190 | modify exact [eax ebx ecx edx];
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191 |
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192 | #pragma aux ASMCpuId_EBX = \
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193 | "cpuid" \
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194 | parm [ecx] \
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195 | value [ebx] \
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196 | modify exact [eax ebx ecx edx];
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197 |
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198 | #pragma aux ASMCpuId_ECX = \
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199 | "cpuid" \
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200 | parm [ecx] \
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201 | value [ecx] \
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202 | modify exact [eax ebx ecx edx];
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203 |
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204 | #pragma aux ASMCpuId_EDX = \
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205 | "cpuid" \
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206 | parm [ecx] \
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207 | value [edx] \
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208 | modify exact [eax ebx ecx edx];
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209 |
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210 | /* ASMHasCpuId: MSC inline in main source file. */
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211 | /* ASMGetApicId: Implemented externally, lazy bird. */
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212 |
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213 | #pragma aux ASMGetCR0 = \
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214 | "mov eax, cr0" \
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215 | parm [] nomemory \
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216 | value [eax] \
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217 | modify exact [eax] nomemory;
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218 |
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219 | #pragma aux ASMSetCR0 = \
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220 | "mov cr0, eax" \
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221 | parm [eax] nomemory \
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222 | modify exact [] nomemory;
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223 |
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224 | #pragma aux ASMGetCR2 = \
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225 | "mov eax, cr2" \
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226 | parm [] nomemory \
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227 | value [eax] \
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228 | modify exact [eax] nomemory;
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229 |
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230 | #pragma aux ASMSetCR2 = \
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231 | "mov cr2, eax" \
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232 | parm [eax] nomemory \
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233 | modify exact [] nomemory;
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234 |
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235 | #pragma aux ASMGetCR3 = \
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236 | "mov eax, cr3" \
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237 | parm [] nomemory \
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238 | value [eax] \
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239 | modify exact [eax] nomemory;
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240 |
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241 | #pragma aux ASMSetCR3 = \
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242 | "mov cr3, eax" \
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243 | parm [eax] nomemory \
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244 | modify exact [] nomemory;
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245 |
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246 | #pragma aux ASMReloadCR3 = \
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247 | "mov eax, cr3" \
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248 | "mov cr3, eax" \
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249 | parm [] nomemory \
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250 | modify exact [eax] nomemory;
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251 |
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252 | #pragma aux ASMGetCR4 = \
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253 | "mov eax, cr4" \
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254 | parm [] nomemory \
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255 | value [eax] \
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256 | modify exact [eax] nomemory;
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257 |
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258 | #pragma aux ASMSetCR4 = \
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259 | "mov cr4, eax" \
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260 | parm [eax] nomemory \
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261 | modify exact [] nomemory;
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262 |
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263 | /* ASMGetCR8: Don't bother for 32-bit. */
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264 | /* ASMSetCR8: Don't bother for 32-bit. */
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265 |
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266 | #pragma aux ASMIntEnable = \
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267 | "sti" \
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268 | parm [] nomemory \
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269 | modify exact [] nomemory;
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270 |
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271 | #pragma aux ASMIntDisable = \
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272 | "cli" \
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273 | parm [] nomemory \
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274 | modify exact [] nomemory;
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275 |
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276 | #pragma aux ASMIntDisableFlags = \
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277 | "pushfd" \
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278 | "cli" \
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279 | "pop eax" \
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280 | parm [] nomemory \
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281 | value [eax] \
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282 | modify exact [] nomemory;
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283 |
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284 | #pragma aux ASMHalt = \
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285 | "hlt" \
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286 | parm [] nomemory \
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287 | modify exact [] nomemory;
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288 |
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289 | #pragma aux ASMRdMsr = \
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290 | ".586" \
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291 | "rdmsr" \
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292 | parm [ecx] nomemory \
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293 | value [eax edx] \
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294 | modify exact [eax edx] nomemory;
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295 |
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296 | #pragma aux ASMWrMsr = \
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297 | ".586" \
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298 | "wrmsr" \
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299 | parm [ecx] [eax edx] nomemory \
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300 | modify exact [] nomemory;
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301 |
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302 | #pragma aux ASMRdMsrEx = \
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303 | ".586" \
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304 | "rdmsr" \
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305 | parm [ecx] [edi] nomemory \
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306 | value [eax edx] \
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307 | modify exact [eax edx] nomemory;
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308 |
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309 | #pragma aux ASMWrMsrEx = \
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310 | ".586" \
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311 | "wrmsr" \
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312 | parm [ecx] [edi] [eax edx] nomemory \
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313 | modify exact [] nomemory;
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314 |
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315 | #pragma aux ASMRdMsr_Low = \
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316 | ".586" \
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317 | "rdmsr" \
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318 | parm [ecx] nomemory \
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319 | value [eax] \
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320 | modify exact [eax edx] nomemory;
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321 |
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322 | #pragma aux ASMRdMsr_High = \
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323 | ".586" \
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324 | "rdmsr" \
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325 | parm [ecx] nomemory \
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326 | value [edx] \
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327 | modify exact [eax edx] nomemory;
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328 |
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329 |
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330 | #pragma aux ASMGetDR0 = \
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331 | "mov eax, dr0" \
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332 | parm [] nomemory \
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333 | value [eax] \
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334 | modify exact [eax] nomemory;
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335 |
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336 | #pragma aux ASMGetDR1 = \
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337 | "mov eax, dr1" \
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338 | parm [] nomemory \
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339 | value [eax] \
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340 | modify exact [eax] nomemory;
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341 |
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342 | #pragma aux ASMGetDR2 = \
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343 | "mov eax, dr2" \
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344 | parm [] nomemory \
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345 | value [eax] \
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346 | modify exact [eax] nomemory;
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347 |
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348 | #pragma aux ASMGetDR3 = \
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349 | "mov eax, dr3" \
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350 | parm [] nomemory \
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351 | value [eax] \
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352 | modify exact [eax] nomemory;
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353 |
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354 | #pragma aux ASMGetDR6 = \
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355 | "mov eax, dr6" \
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356 | parm [] nomemory \
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357 | value [eax] \
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358 | modify exact [eax] nomemory;
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359 |
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360 | #pragma aux ASMGetAndClearDR6 = \
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361 | "mov edx, 0ffff0ff0h" \
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362 | "mov eax, dr6" \
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363 | "mov dr6, edx" \
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364 | parm [] nomemory \
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365 | value [eax] \
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366 | modify exact [eax edx] nomemory;
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367 |
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368 | #pragma aux ASMGetDR7 = \
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369 | "mov eax, dr7" \
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370 | parm [] nomemory \
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371 | value [eax] \
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372 | modify exact [eax] nomemory;
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373 |
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374 | #pragma aux ASMSetDR0 = \
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375 | "mov dr0, eax" \
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376 | parm [eax] nomemory \
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377 | modify exact [] nomemory;
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378 |
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379 | #pragma aux ASMSetDR1 = \
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380 | "mov dr1, eax" \
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381 | parm [eax] nomemory \
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382 | modify exact [] nomemory;
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383 |
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384 | #pragma aux ASMSetDR2 = \
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385 | "mov dr2, eax" \
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386 | parm [eax] nomemory \
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387 | modify exact [] nomemory;
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388 |
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389 | #pragma aux ASMSetDR3 = \
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390 | "mov dr3, eax" \
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391 | parm [eax] nomemory \
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392 | modify exact [] nomemory;
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393 |
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394 | #pragma aux ASMSetDR6 = \
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395 | "mov dr6, eax" \
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396 | parm [eax] nomemory \
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397 | modify exact [] nomemory;
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398 |
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399 | #pragma aux ASMSetDR7 = \
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400 | "mov dr7, eax" \
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401 | parm [eax] nomemory \
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402 | modify exact [] nomemory;
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403 |
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404 | /* Yeah, could've used outp here, but this keeps the main file simpler. */
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405 | #pragma aux ASMOutU8 = \
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406 | "out dx, al" \
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407 | parm [dx] [al] nomemory \
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408 | modify exact [] nomemory;
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409 |
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410 | #pragma aux ASMInU8 = \
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411 | "in al, dx" \
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412 | parm [dx] nomemory \
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413 | value [al] \
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414 | modify exact [] nomemory;
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415 |
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416 | #pragma aux ASMOutU16 = \
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417 | "out dx, ax" \
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418 | parm [dx] [ax] nomemory \
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419 | modify exact [] nomemory;
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420 |
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421 | #pragma aux ASMInU16 = \
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422 | "in ax, dx" \
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423 | parm [dx] nomemory \
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424 | value [ax] \
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425 | modify exact [] nomemory;
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426 |
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427 | #pragma aux ASMOutU32 = \
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428 | "out dx, eax" \
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429 | parm [dx] [eax] nomemory \
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430 | modify exact [] nomemory;
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431 |
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432 | #pragma aux ASMInU32 = \
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433 | "in eax, dx" \
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434 | parm [dx] nomemory \
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435 | value [eax] \
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436 | modify exact [] nomemory;
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437 |
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438 | #pragma aux ASMOutStrU8 = \
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439 | "rep outsb" \
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440 | parm [dx] [esi] [ecx] nomemory \
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441 | modify exact [esi ecx] nomemory;
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442 |
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443 | #pragma aux ASMInStrU8 = \
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444 | "rep insb" \
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445 | parm [dx] [edi] [ecx] \
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446 | modify exact [edi ecx];
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447 |
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448 | #pragma aux ASMOutStrU16 = \
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449 | "rep outsw" \
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450 | parm [dx] [esi] [ecx] nomemory \
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451 | modify exact [esi ecx] nomemory;
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452 |
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453 | #pragma aux ASMInStrU16 = \
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454 | "rep insw" \
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455 | parm [dx] [edi] [ecx] \
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456 | modify exact [edi ecx];
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457 |
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458 | #pragma aux ASMOutStrU32 = \
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459 | "rep outsd" \
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460 | parm [dx] [esi] [ecx] nomemory \
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461 | modify exact [esi ecx] nomemory;
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462 |
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463 | #pragma aux ASMInStrU32 = \
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464 | "rep insd" \
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465 | parm [dx] [edi] [ecx] \
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466 | modify exact [edi ecx];
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467 |
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468 | #pragma aux ASMInvalidatePage = \
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469 | "invlpg [eax]" \
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470 | parm [eax] \
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471 | modify exact [];
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472 |
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473 | #pragma aux ASMWriteBackAndInvalidateCaches = \
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474 | ".486" \
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475 | "wbinvd" \
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476 | parm [] nomemory \
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477 | modify exact [] nomemory;
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478 |
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479 | #pragma aux ASMInvalidateInternalCaches = \
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480 | ".486" \
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481 | "invd" \
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482 | parm [] \
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483 | modify exact [];
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484 |
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485 | #endif
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486 |
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