reactos/ntoskrnl/include/internal/i386/intrin_i.h

   1 #ifndef _INTRIN_INTERNAL_
   2 #define _INTRIN_INTERNAL_
   3
   4 #ifdef CONFIG_SMP
   5 #define LOCK "lock ; "
   6 #else
   7 #define LOCK ""
   8 #endif
   9
  10 #if defined(__GNUC__)
  11
  12 #define Ke386SetGlobalDescriptorTable(X) \
  13     __asm__("lgdt %0\n\t" \
  14     : /* no outputs */ \
  15     : "m" (*X));
  16
  17 #define Ke386GetGlobalDescriptorTable(X) \
  18     __asm__("sgdt %0\n\t" \
  19     : "=m" (*X) \
  20     : /* no input */ \
  21     : "memory");
  22
  23 #define Ke386GetLocalDescriptorTable(X) \
  24     __asm__("sldt %0\n\t" \
  25     : "=m" (*X) \
  26     : /* no input */ \
  27     : "memory");
  28
  29 #define Ke386SetLocalDescriptorTable(X) \
  30     __asm__("lldt %w0\n\t" \
  31     : /* no outputs */ \
  32     : "q" (X));
  33
  34 #define Ke386SetTr(X)                   __asm__ __volatile__("ltr %%ax" : :"a" (X));
  35
  36 #define Ke386GetTr(X) \
  37     __asm__("str %0\n\t" \
  38     : "=m" (*X));
  39
  40 #define _Ke386GetSeg(N)           ({ \
  41                                      unsigned int __d; \
  42                                      __asm__("movl %%" #N ",%0\n\t" :"=r" (__d)); \
  43                                      __d; \
  44                                  })
  45
  46 #define _Ke386SetSeg(N,X)         __asm__ __volatile__("movl %0,%%" #N : :"r" (X));
  47
  48 #define Ke386HaltProcessor()        __asm__("hlt\n\t");
  49
  50 #define Ke386FnInit()               __asm__("fninit\n\t");
  51
  52
  53 //
  54 // CR Macros
  55 //
  56 #define Ke386SetCr2(X)              __asm__ __volatile__("movl %0,%%cr2" : :"r" (X));
  57
  58 //
  59 // Segment Macros
  60 //
  61 #define Ke386GetSs()                _Ke386GetSeg(ss)
  62 #define Ke386GetFs()                _Ke386GetSeg(fs)
  63 #define Ke386SetFs(X)               _Ke386SetSeg(fs, X)
  64 #define Ke386SetDs(X)               _Ke386SetSeg(ds, X)
  65 #define Ke386SetEs(X)               _Ke386SetSeg(es, X)
  66 #define Ke386SetSs(X)               _Ke386SetSeg(ss, X)
  67 #define Ke386SetGs(X)               _Ke386SetSeg(gs, X)
  68
  69 #elif defined(_MSC_VER)
  70
  71 FORCEINLINE
  72 VOID
  73 Ke386FnInit(VOID)
  74 {
  75     __asm fninit;
  76 }
  77
  78 FORCEINLINE
  79 VOID
  80 Ke386HaltProcessor(VOID)
  81 {
  82     __asm hlt;
  83 }
  84
  85 FORCEINLINE
  86 VOID
  87 Ke386GetGlobalDescriptorTable(OUT PVOID Descriptor)
  88 {
  89     __asm sgdt [Descriptor];
  90 }
  91
  92 FORCEINLINE
  93 VOID
  94 Ke386SetGlobalDescriptorTable(IN PVOID Descriptor)
  95 {
  96     __asm lgdt [Descriptor];
  97 }
  98
  99 FORCEINLINE
 100 VOID
 101 Ke386GetLocalDescriptorTable(OUT PUSHORT Descriptor)
 102 {
 103     USHORT _Descriptor;
 104     __asm sldt _Descriptor;
 105     *Descriptor = _Descriptor;
 106 }
 107
 108 FORCEINLINE
 109 VOID
 110 Ke386SetLocalDescriptorTable(IN USHORT Descriptor)
 111 {
 112     __asm lldt Descriptor;
 113 }
 114
 115 FORCEINLINE
 116 VOID
 117 Ke386SetTr(IN USHORT Tr)
 118 {
 119     __asm ltr Tr;
 120 }
 121
 122 FORCEINLINE
 123 USHORT
 124 Ke386GetTr(OUT PUSHORT Tr)
 125 {
 126     USHORT _Tr;
 127     __asm str _Tr;
 128     *Tr = _Tr;
 129 }
 130
 131 //
 132 // CR Macros
 133 //
 134 FORCEINLINE
 135 VOID
 136 Ke386SetCr2(IN ULONG Value)
 137 {
 138     __asm mov eax, Value;
 139     __asm mov cr2, eax;
 140 }
 141
 142 //
 143 // Segment Macros
 144 //
 145 FORCEINLINE
 146 USHORT
 147 Ke386GetSs(VOID)
 148 {
 149     __asm mov ax, ss;
 150 }
 151
 152 FORCEINLINE
 153 USHORT
 154 Ke386GetFs(VOID)
 155 {
 156     __asm mov ax, fs;
 157 }
 158
 159 FORCEINLINE
 160 USHORT
 161 Ke386GetDs(VOID)
 162 {
 163     __asm mov ax, ds;
 164 }
 165
 166 FORCEINLINE
 167 USHORT
 168 Ke386GetEs(VOID)
 169 {
 170     __asm mov ax, es;
 171 }
 172
 173 FORCEINLINE
 174 VOID
 175 Ke386SetSs(IN USHORT Value)
 176 {
 177     __asm mov ax, Value;
 178     __asm mov ss, ax;
 179 }
 180
 181 FORCEINLINE
 182 VOID
 183 Ke386SetFs(IN USHORT Value)
 184 {
 185     __asm mov ax, Value;
 186     __asm mov fs, ax;
 187 }
 188
 189 FORCEINLINE
 190 VOID
 191 Ke386SetDs(IN USHORT Value)
 192 {
 193     __asm mov ax, Value;
 194     __asm mov ds, ax;
 195 }
 196
 197 FORCEINLINE
 198 VOID
 199 Ke386SetEs(IN USHORT Value)
 200 {
 201     __asm mov ax, Value;
 202     __asm mov es, ax;
 203 }
 204
 205 FORCEINLINE
 206 VOID
 207 Ke386SetGs(IN USHORT Value)
 208 {
 209     __asm mov ax, Value;
 210     __asm mov gs, ax;
 211 }
 212
 213 #else
 214 #error Unknown compiler for inline assembler
 215 #endif
 216
 217 #endif
 218
 219 /* EOF */