1 /* ===-------- Intrin.h ---------------------------------------------------=== 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to deal 5 * in the Software without restriction, including without limitation the rights 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 * copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 * THE SOFTWARE. 20 * 21 *===-----------------------------------------------------------------------=== 22 */ 23 24 /* Only include this if we're compiling for the windows platform. */ 25 #ifndef _MSC_VER 26 #include_next <Intrin.h> 27 #else 28 29 #ifndef __INTRIN_H 30 #define __INTRIN_H 31 32 /* First include the standard intrinsics. */ 33 #if defined(__i386__) || defined(__x86_64__) 34 #include <x86intrin.h> 35 #endif 36 37 /* For the definition of jmp_buf. */ 38 #if __STDC_HOSTED__ 39 #include <setjmp.h> 40 #endif 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 #if defined(__MMX__) 47 /* And the random ones that aren't in those files. */ 48 __m64 _m_from_float(float); 49 __m64 _m_from_int(int _l); 50 void _m_prefetch(void *); 51 float _m_to_float(__m64); 52 int _m_to_int(__m64 _M); 53 #endif 54 55 /* Other assorted instruction intrinsics. */ 56 void __addfsbyte(unsigned long, unsigned char); 57 void __addfsdword(unsigned long, unsigned long); 58 void __addfsword(unsigned long, unsigned short); 59 void __code_seg(const char *); 60 static __inline__ 61 void __cpuid(int[4], int); 62 static __inline__ 63 void __cpuidex(int[4], int, int); 64 void __debugbreak(void); 65 __int64 __emul(int, int); 66 unsigned __int64 __emulu(unsigned int, unsigned int); 67 void __cdecl __fastfail(unsigned int); 68 unsigned int __getcallerseflags(void); 69 static __inline__ 70 void __halt(void); 71 unsigned char __inbyte(unsigned short); 72 void __inbytestring(unsigned short, unsigned char *, unsigned long); 73 void __incfsbyte(unsigned long); 74 void __incfsdword(unsigned long); 75 void __incfsword(unsigned long); 76 unsigned long __indword(unsigned short); 77 void __indwordstring(unsigned short, unsigned long *, unsigned long); 78 void __int2c(void); 79 void __invlpg(void *); 80 unsigned short __inword(unsigned short); 81 void __inwordstring(unsigned short, unsigned short *, unsigned long); 82 void __lidt(void *); 83 unsigned __int64 __ll_lshift(unsigned __int64, int); 84 __int64 __ll_rshift(__int64, int); 85 void __llwpcb(void *); 86 unsigned char __lwpins32(unsigned int, unsigned int, unsigned int); 87 void __lwpval32(unsigned int, unsigned int, unsigned int); 88 unsigned int __lzcnt(unsigned int); 89 unsigned short __lzcnt16(unsigned short); 90 static __inline__ 91 void __movsb(unsigned char *, unsigned char const *, size_t); 92 static __inline__ 93 void __movsd(unsigned long *, unsigned long const *, size_t); 94 static __inline__ 95 void __movsw(unsigned short *, unsigned short const *, size_t); 96 void __nop(void); 97 void __nvreg_restore_fence(void); 98 void __nvreg_save_fence(void); 99 void __outbyte(unsigned short, unsigned char); 100 void __outbytestring(unsigned short, unsigned char *, unsigned long); 101 void __outdword(unsigned short, unsigned long); 102 void __outdwordstring(unsigned short, unsigned long *, unsigned long); 103 void __outword(unsigned short, unsigned short); 104 void __outwordstring(unsigned short, unsigned short *, unsigned long); 105 static __inline__ 106 unsigned int __popcnt(unsigned int); 107 static __inline__ 108 unsigned short __popcnt16(unsigned short); 109 unsigned long __readcr0(void); 110 unsigned long __readcr2(void); 111 static __inline__ 112 unsigned long __readcr3(void); 113 unsigned long __readcr4(void); 114 unsigned long __readcr8(void); 115 unsigned int __readdr(unsigned int); 116 #ifdef __i386__ 117 static __inline__ 118 unsigned char __readfsbyte(unsigned long); 119 static __inline__ 120 unsigned long __readfsdword(unsigned long); 121 static __inline__ 122 unsigned __int64 __readfsqword(unsigned long); 123 static __inline__ 124 unsigned short __readfsword(unsigned long); 125 #endif 126 static __inline__ 127 unsigned __int64 __readmsr(unsigned long); 128 unsigned __int64 __readpmc(unsigned long); 129 unsigned long __segmentlimit(unsigned long); 130 void __sidt(void *); 131 void *__slwpcb(void); 132 static __inline__ 133 void __stosb(unsigned char *, unsigned char, size_t); 134 static __inline__ 135 void __stosd(unsigned long *, unsigned long, size_t); 136 static __inline__ 137 void __stosw(unsigned short *, unsigned short, size_t); 138 void __svm_clgi(void); 139 void __svm_invlpga(void *, int); 140 void __svm_skinit(int); 141 void __svm_stgi(void); 142 void __svm_vmload(size_t); 143 void __svm_vmrun(size_t); 144 void __svm_vmsave(size_t); 145 void __ud2(void); 146 unsigned __int64 __ull_rshift(unsigned __int64, int); 147 void __vmx_off(void); 148 void __vmx_vmptrst(unsigned __int64 *); 149 void __wbinvd(void); 150 void __writecr0(unsigned int); 151 static __inline__ 152 void __writecr3(unsigned int); 153 void __writecr4(unsigned int); 154 void __writecr8(unsigned int); 155 void __writedr(unsigned int, unsigned int); 156 void __writefsbyte(unsigned long, unsigned char); 157 void __writefsdword(unsigned long, unsigned long); 158 void __writefsqword(unsigned long, unsigned __int64); 159 void __writefsword(unsigned long, unsigned short); 160 void __writemsr(unsigned long, unsigned __int64); 161 static __inline__ 162 void *_AddressOfReturnAddress(void); 163 unsigned int _andn_u32(unsigned int, unsigned int); 164 unsigned int _bextr_u32(unsigned int, unsigned int, unsigned int); 165 unsigned int _bextri_u32(unsigned int, unsigned int); 166 static __inline__ 167 unsigned char _BitScanForward(unsigned long *_Index, unsigned long _Mask); 168 static __inline__ 169 unsigned char _BitScanReverse(unsigned long *_Index, unsigned long _Mask); 170 static __inline__ 171 unsigned char _bittest(long const *, long); 172 static __inline__ 173 unsigned char _bittestandcomplement(long *, long); 174 static __inline__ 175 unsigned char _bittestandreset(long *, long); 176 static __inline__ 177 unsigned char _bittestandset(long *, long); 178 unsigned int _blcfill_u32(unsigned int); 179 unsigned int _blci_u32(unsigned int); 180 unsigned int _blcic_u32(unsigned int); 181 unsigned int _blcmsk_u32(unsigned int); 182 unsigned int _blcs_u32(unsigned int); 183 unsigned int _blsfill_u32(unsigned int); 184 unsigned int _blsi_u32(unsigned int); 185 unsigned int _blsic_u32(unsigned int); 186 unsigned int _blsmsk_u32(unsigned int); 187 unsigned int _blsr_u32(unsigned int); 188 unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64); 189 unsigned long __cdecl _byteswap_ulong(unsigned long); 190 unsigned short __cdecl _byteswap_ushort(unsigned short); 191 unsigned _bzhi_u32(unsigned int, unsigned int); 192 void __cdecl _disable(void); 193 void __cdecl _enable(void); 194 void __cdecl _fxrstor(void const *); 195 void __cdecl _fxsave(void *); 196 long _InterlockedAddLargeStatistic(__int64 volatile *_Addend, long _Value); 197 static __inline__ 198 long _InterlockedAnd(long volatile *_Value, long _Mask); 199 static __inline__ 200 short _InterlockedAnd16(short volatile *_Value, short _Mask); 201 static __inline__ 202 char _InterlockedAnd8(char volatile *_Value, char _Mask); 203 unsigned char _interlockedbittestandreset(long volatile *, long); 204 static __inline__ 205 unsigned char _interlockedbittestandset(long volatile *, long); 206 static __inline__ 207 long __cdecl _InterlockedCompareExchange(long volatile *_Destination, 208 long _Exchange, long _Comparand); 209 long _InterlockedCompareExchange_HLEAcquire(long volatile *, long, long); 210 long _InterlockedCompareExchange_HLERelease(long volatile *, long, long); 211 static __inline__ 212 short _InterlockedCompareExchange16(short volatile *_Destination, 213 short _Exchange, short _Comparand); 214 static __inline__ 215 __int64 _InterlockedCompareExchange64(__int64 volatile *_Destination, 216 __int64 _Exchange, __int64 _Comparand); 217 __int64 _InterlockedcompareExchange64_HLEAcquire(__int64 volatile *, __int64, 218 __int64); 219 __int64 _InterlockedCompareExchange64_HLERelease(__int64 volatile *, __int64, 220 __int64); 221 static __inline__ 222 char _InterlockedCompareExchange8(char volatile *_Destination, char _Exchange, 223 char _Comparand); 224 void *_InterlockedCompareExchangePointer_HLEAcquire(void *volatile *, void *, 225 void *); 226 void *_InterlockedCompareExchangePointer_HLERelease(void *volatile *, void *, 227 void *); 228 static __inline__ 229 long __cdecl _InterlockedDecrement(long volatile *_Addend); 230 static __inline__ 231 short _InterlockedDecrement16(short volatile *_Addend); 232 long _InterlockedExchange(long volatile *_Target, long _Value); 233 static __inline__ 234 short _InterlockedExchange16(short volatile *_Target, short _Value); 235 static __inline__ 236 char _InterlockedExchange8(char volatile *_Target, char _Value); 237 static __inline__ 238 long __cdecl _InterlockedExchangeAdd(long volatile *_Addend, long _Value); 239 long _InterlockedExchangeAdd_HLEAcquire(long volatile *, long); 240 long _InterlockedExchangeAdd_HLERelease(long volatile *, long); 241 static __inline__ 242 short _InterlockedExchangeAdd16(short volatile *_Addend, short _Value); 243 __int64 _InterlockedExchangeAdd64_HLEAcquire(__int64 volatile *, __int64); 244 __int64 _InterlockedExchangeAdd64_HLERelease(__int64 volatile *, __int64); 245 static __inline__ 246 char _InterlockedExchangeAdd8(char volatile *_Addend, char _Value); 247 static __inline__ 248 long __cdecl _InterlockedIncrement(long volatile *_Addend); 249 static __inline__ 250 short _InterlockedIncrement16(short volatile *_Addend); 251 static __inline__ 252 long _InterlockedOr(long volatile *_Value, long _Mask); 253 static __inline__ 254 short _InterlockedOr16(short volatile *_Value, short _Mask); 255 static __inline__ 256 char _InterlockedOr8(char volatile *_Value, char _Mask); 257 static __inline__ 258 long _InterlockedXor(long volatile *_Value, long _Mask); 259 static __inline__ 260 short _InterlockedXor16(short volatile *_Value, short _Mask); 261 static __inline__ 262 char _InterlockedXor8(char volatile *_Value, char _Mask); 263 void __cdecl _invpcid(unsigned int, void *); 264 static __inline__ 265 unsigned long __cdecl _lrotl(unsigned long, int); 266 static __inline__ 267 unsigned long __cdecl _lrotr(unsigned long, int); 268 static __inline__ 269 unsigned int _lzcnt_u32(unsigned int); 270 static __inline__ 271 void _ReadBarrier(void); 272 static __inline__ 273 void _ReadWriteBarrier(void); 274 static __inline__ 275 void *_ReturnAddress(void); 276 unsigned int _rorx_u32(unsigned int, const unsigned int); 277 int __cdecl _rdrand16_step(unsigned short *); 278 int __cdecl _rdrand32_step(unsigned int *); 279 static __inline__ 280 unsigned int __cdecl _rotl(unsigned int _Value, int _Shift); 281 static __inline__ 282 unsigned short _rotl16(unsigned short _Value, unsigned char _Shift); 283 static __inline__ 284 unsigned __int64 __cdecl _rotl64(unsigned __int64 _Value, int _Shift); 285 static __inline__ 286 unsigned char _rotl8(unsigned char _Value, unsigned char _Shift); 287 static __inline__ 288 unsigned int __cdecl _rotr(unsigned int _Value, int _Shift); 289 static __inline__ 290 unsigned short _rotr16(unsigned short _Value, unsigned char _Shift); 291 static __inline__ 292 unsigned __int64 __cdecl _rotr64(unsigned __int64 _Value, int _Shift); 293 static __inline__ 294 unsigned char _rotr8(unsigned char _Value, unsigned char _Shift); 295 int _sarx_i32(int, unsigned int); 296 #if __STDC_HOSTED__ 297 int __cdecl _setjmp(jmp_buf); 298 #endif 299 unsigned int _shlx_u32(unsigned int, unsigned int); 300 unsigned int _shrx_u32(unsigned int, unsigned int); 301 void _Store_HLERelease(long volatile *, long); 302 void _Store64_HLERelease(__int64 volatile *, __int64); 303 void _StorePointer_HLERelease(void *volatile *, void *); 304 unsigned int _t1mskc_u32(unsigned int); 305 unsigned int _tzcnt_u32(unsigned int); 306 unsigned int _tzmsk_u32(unsigned int); 307 static __inline__ 308 void _WriteBarrier(void); 309 void _xabort(const unsigned int imm); 310 unsigned __int32 xbegin(void); 311 void _xend(void); 312 static __inline__ 313 unsigned __int64 __cdecl _xgetbv(unsigned int); 314 void __cdecl _xrstor(void const *, unsigned __int64); 315 void __cdecl _xsave(void *, unsigned __int64); 316 void __cdecl _xsaveopt(void *, unsigned __int64); 317 void __cdecl _xsetbv(unsigned int, unsigned __int64); 318 unsigned char _xtest(void); 319 320 /* These additional intrinsics are turned on in x64/amd64/x86_64 mode. */ 321 #ifdef __x86_64__ 322 void __addgsbyte(unsigned long, unsigned char); 323 void __addgsdword(unsigned long, unsigned long); 324 void __addgsqword(unsigned long, unsigned __int64); 325 void __addgsword(unsigned long, unsigned short); 326 static __inline__ 327 void __faststorefence(void); 328 void __incgsbyte(unsigned long); 329 void __incgsdword(unsigned long); 330 void __incgsqword(unsigned long); 331 void __incgsword(unsigned long); 332 unsigned char __lwpins64(unsigned __int64, unsigned int, unsigned int); 333 void __lwpval64(unsigned __int64, unsigned int, unsigned int); 334 unsigned __int64 __lzcnt64(unsigned __int64); 335 static __inline__ 336 void __movsq(unsigned long long *, unsigned long long const *, size_t); 337 __int64 __mulh(__int64, __int64); 338 static __inline__ 339 unsigned __int64 __popcnt64(unsigned __int64); 340 static __inline__ 341 unsigned char __readgsbyte(unsigned long); 342 static __inline__ 343 unsigned long __readgsdword(unsigned long); 344 static __inline__ 345 unsigned __int64 __readgsqword(unsigned long); 346 unsigned short __readgsword(unsigned long); 347 unsigned __int64 __shiftleft128(unsigned __int64 _LowPart, 348 unsigned __int64 _HighPart, 349 unsigned char _Shift); 350 unsigned __int64 __shiftright128(unsigned __int64 _LowPart, 351 unsigned __int64 _HighPart, 352 unsigned char _Shift); 353 static __inline__ 354 void __stosq(unsigned __int64 *, unsigned __int64, size_t); 355 unsigned __int64 __umulh(unsigned __int64, unsigned __int64); 356 unsigned char __vmx_on(unsigned __int64 *); 357 unsigned char __vmx_vmclear(unsigned __int64 *); 358 unsigned char __vmx_vmlaunch(void); 359 unsigned char __vmx_vmptrld(unsigned __int64 *); 360 unsigned char __vmx_vmread(size_t, size_t *); 361 unsigned char __vmx_vmresume(void); 362 unsigned char __vmx_vmwrite(size_t, size_t); 363 void __writegsbyte(unsigned long, unsigned char); 364 void __writegsdword(unsigned long, unsigned long); 365 void __writegsqword(unsigned long, unsigned __int64); 366 void __writegsword(unsigned long, unsigned short); 367 unsigned __int64 _andn_u64(unsigned __int64, unsigned __int64); 368 unsigned __int64 _bextr_u64(unsigned __int64, unsigned int, unsigned int); 369 unsigned __int64 _bextri_u64(unsigned __int64, unsigned int); 370 static __inline__ 371 unsigned char _BitScanForward64(unsigned long *_Index, unsigned __int64 _Mask); 372 static __inline__ 373 unsigned char _BitScanReverse64(unsigned long *_Index, unsigned __int64 _Mask); 374 static __inline__ 375 unsigned char _bittest64(__int64 const *, __int64); 376 static __inline__ 377 unsigned char _bittestandcomplement64(__int64 *, __int64); 378 static __inline__ 379 unsigned char _bittestandreset64(__int64 *, __int64); 380 static __inline__ 381 unsigned char _bittestandset64(__int64 *, __int64); 382 unsigned __int64 _blcfill_u64(unsigned __int64); 383 unsigned __int64 _blci_u64(unsigned __int64); 384 unsigned __int64 _blcic_u64(unsigned __int64); 385 unsigned __int64 _blcmsk_u64(unsigned __int64); 386 unsigned __int64 _blcs_u64(unsigned __int64); 387 unsigned __int64 _blsfill_u64(unsigned __int64); 388 unsigned __int64 _blsi_u64(unsigned __int64); 389 unsigned __int64 _blsic_u64(unsigned __int64); 390 unsigned __int64 _blsmsk_u64(unsigned __int64); 391 unsigned __int64 _blsr_u64(unsigned __int64); 392 unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64); 393 unsigned __int64 _bzhi_u64(unsigned __int64, unsigned int); 394 void __cdecl _fxrstor64(void const *); 395 void __cdecl _fxsave64(void *); 396 long _InterlockedAnd_np(long volatile *_Value, long _Mask); 397 short _InterlockedAnd16_np(short volatile *_Value, short _Mask); 398 __int64 _InterlockedAnd64_np(__int64 volatile *_Value, __int64 _Mask); 399 char _InterlockedAnd8_np(char volatile *_Value, char _Mask); 400 unsigned char _interlockedbittestandreset64(__int64 volatile *, __int64); 401 static __inline__ 402 unsigned char _interlockedbittestandset64(__int64 volatile *, __int64); 403 long _InterlockedCompareExchange_np(long volatile *_Destination, long _Exchange, 404 long _Comparand); 405 unsigned char _InterlockedCompareExchange128(__int64 volatile *_Destination, 406 __int64 _ExchangeHigh, 407 __int64 _ExchangeLow, 408 __int64 *_CompareandResult); 409 unsigned char _InterlockedCompareExchange128_np(__int64 volatile *_Destination, 410 __int64 _ExchangeHigh, 411 __int64 _ExchangeLow, 412 __int64 *_ComparandResult); 413 short _InterlockedCompareExchange16_np(short volatile *_Destination, 414 short _Exchange, short _Comparand); 415 __int64 _InterlockedCompareExchange64_HLEAcquire(__int64 volatile *, __int64, 416 __int64); 417 __int64 _InterlockedCompareExchange64_HLERelease(__int64 volatile *, __int64, 418 __int64); 419 __int64 _InterlockedCompareExchange64_np(__int64 volatile *_Destination, 420 __int64 _Exchange, __int64 _Comparand); 421 void *_InterlockedCompareExchangePointer(void *volatile *_Destination, 422 void *_Exchange, void *_Comparand); 423 void *_InterlockedCompareExchangePointer_np(void *volatile *_Destination, 424 void *_Exchange, void *_Comparand); 425 static __inline__ 426 __int64 _InterlockedDecrement64(__int64 volatile *_Addend); 427 static __inline__ 428 __int64 _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value); 429 static __inline__ 430 __int64 _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value); 431 void *_InterlockedExchangePointer(void *volatile *_Target, void *_Value); 432 static __inline__ 433 __int64 _InterlockedIncrement64(__int64 volatile *_Addend); 434 long _InterlockedOr_np(long volatile *_Value, long _Mask); 435 short _InterlockedOr16_np(short volatile *_Value, short _Mask); 436 static __inline__ 437 __int64 _InterlockedOr64(__int64 volatile *_Value, __int64 _Mask); 438 __int64 _InterlockedOr64_np(__int64 volatile *_Value, __int64 _Mask); 439 char _InterlockedOr8_np(char volatile *_Value, char _Mask); 440 long _InterlockedXor_np(long volatile *_Value, long _Mask); 441 short _InterlockedXor16_np(short volatile *_Value, short _Mask); 442 static __inline__ 443 __int64 _InterlockedXor64(__int64 volatile *_Value, __int64 _Mask); 444 __int64 _InterlockedXor64_np(__int64 volatile *_Value, __int64 _Mask); 445 char _InterlockedXor8_np(char volatile *_Value, char _Mask); 446 static __inline__ 447 unsigned __int64 _lzcnt_u64(unsigned __int64); 448 __int64 _mul128(__int64 _Multiplier, __int64 _Multiplicand, 449 __int64 *_HighProduct); 450 unsigned int __cdecl _readfsbase_u32(void); 451 unsigned __int64 __cdecl _readfsbase_u64(void); 452 unsigned int __cdecl _readgsbase_u32(void); 453 unsigned __int64 __cdecl _readgsbase_u64(void); 454 unsigned __int64 _rorx_u64(unsigned __int64, const unsigned int); 455 __int64 _sarx_i64(__int64, unsigned int); 456 #if __STDC_HOSTED__ 457 int __cdecl _setjmpex(jmp_buf); 458 #endif 459 unsigned __int64 _shlx_u64(unsigned __int64, unsigned int); 460 unsigned __int64 shrx_u64(unsigned __int64, unsigned int); 461 unsigned __int64 _tzcnt_u64(unsigned __int64); 462 unsigned __int64 _tzmsk_u64(unsigned __int64); 463 unsigned __int64 _umul128(unsigned __int64 _Multiplier, 464 unsigned __int64 _Multiplicand, 465 unsigned __int64 *_HighProduct); 466 void __cdecl _writefsbase_u32(unsigned int); 467 void _cdecl _writefsbase_u64(unsigned __int64); 468 void __cdecl _writegsbase_u32(unsigned int); 469 void __cdecl _writegsbase_u64(unsigned __int64); 470 void __cdecl _xrstor64(void const *, unsigned __int64); 471 void __cdecl _xsave64(void *, unsigned __int64); 472 void __cdecl _xsaveopt64(void *, unsigned __int64); 473 474 #endif /* __x86_64__ */ 475 476 /*----------------------------------------------------------------------------*\ 477 |* Bit Twiddling 478 \*----------------------------------------------------------------------------*/ 479 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 480 _rotl8(unsigned char _Value, unsigned char _Shift) { 481 _Shift &= 0x7; 482 return _Shift ? (_Value << _Shift) | (_Value >> (8 - _Shift)) : _Value; 483 } 484 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 485 _rotr8(unsigned char _Value, unsigned char _Shift) { 486 _Shift &= 0x7; 487 return _Shift ? (_Value >> _Shift) | (_Value << (8 - _Shift)) : _Value; 488 } 489 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) 490 _rotl16(unsigned short _Value, unsigned char _Shift) { 491 _Shift &= 0xf; 492 return _Shift ? (_Value << _Shift) | (_Value >> (16 - _Shift)) : _Value; 493 } 494 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) 495 _rotr16(unsigned short _Value, unsigned char _Shift) { 496 _Shift &= 0xf; 497 return _Shift ? (_Value >> _Shift) | (_Value << (16 - _Shift)) : _Value; 498 } 499 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) 500 _rotl(unsigned int _Value, int _Shift) { 501 _Shift &= 0x1f; 502 return _Shift ? (_Value << _Shift) | (_Value >> (32 - _Shift)) : _Value; 503 } 504 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) 505 _rotr(unsigned int _Value, int _Shift) { 506 _Shift &= 0x1f; 507 return _Shift ? (_Value >> _Shift) | (_Value << (32 - _Shift)) : _Value; 508 } 509 static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) 510 _lrotl(unsigned long _Value, int _Shift) { 511 _Shift &= 0x1f; 512 return _Shift ? (_Value << _Shift) | (_Value >> (32 - _Shift)) : _Value; 513 } 514 static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) 515 _lrotr(unsigned long _Value, int _Shift) { 516 _Shift &= 0x1f; 517 return _Shift ? (_Value >> _Shift) | (_Value << (32 - _Shift)) : _Value; 518 } 519 static 520 __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 521 _rotl64(unsigned __int64 _Value, int _Shift) { 522 _Shift &= 0x3f; 523 return _Shift ? (_Value << _Shift) | (_Value >> (64 - _Shift)) : _Value; 524 } 525 static 526 __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 527 _rotr64(unsigned __int64 _Value, int _Shift) { 528 _Shift &= 0x3f; 529 return _Shift ? (_Value >> _Shift) | (_Value << (64 - _Shift)) : _Value; 530 } 531 /*----------------------------------------------------------------------------*\ 532 |* Bit Counting and Testing 533 \*----------------------------------------------------------------------------*/ 534 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 535 _BitScanForward(unsigned long *_Index, unsigned long _Mask) { 536 if (!_Mask) 537 return 0; 538 *_Index = __builtin_ctzl(_Mask); 539 return 1; 540 } 541 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 542 _BitScanReverse(unsigned long *_Index, unsigned long _Mask) { 543 if (!_Mask) 544 return 0; 545 *_Index = 31 - __builtin_clzl(_Mask); 546 return 1; 547 } 548 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) 549 _lzcnt_u32(unsigned int a) { 550 if (!a) 551 return 32; 552 return __builtin_clzl(a); 553 } 554 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) 555 __popcnt16(unsigned short value) { 556 return __builtin_popcount((int)value); 557 } 558 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) 559 __popcnt(unsigned int value) { 560 return __builtin_popcount(value); 561 } 562 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 563 _bittest(long const *a, long b) { 564 return (*a >> b) & 1; 565 } 566 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 567 _bittestandcomplement(long *a, long b) { 568 unsigned char x = (*a >> b) & 1; 569 *a = *a ^ (1 << b); 570 return x; 571 } 572 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 573 _bittestandreset(long *a, long b) { 574 unsigned char x = (*a >> b) & 1; 575 *a = *a & ~(1 << b); 576 return x; 577 } 578 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 579 _bittestandset(long *a, long b) { 580 unsigned char x = (*a >> b) & 1; 581 *a = *a | (1 << b); 582 return x; 583 } 584 #if defined(__i386__) || defined(__x86_64__) 585 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 586 _interlockedbittestandset(long volatile *__BitBase, long __BitPos) { 587 unsigned char __Res; 588 __asm__ ("xor %0, %0\n" 589 "lock bts %2, %1\n" 590 "setc %0\n" 591 : "=r" (__Res), "+m"(*__BitBase) 592 : "Ir"(__BitPos)); 593 return __Res; 594 } 595 #endif 596 #ifdef __x86_64__ 597 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 598 _BitScanForward64(unsigned long *_Index, unsigned __int64 _Mask) { 599 if (!_Mask) 600 return 0; 601 *_Index = __builtin_ctzll(_Mask); 602 return 1; 603 } 604 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 605 _BitScanReverse64(unsigned long *_Index, unsigned __int64 _Mask) { 606 if (!_Mask) 607 return 0; 608 *_Index = 63 - __builtin_clzll(_Mask); 609 return 1; 610 } 611 static 612 __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 613 _lzcnt_u64(unsigned __int64 a) { 614 if (!a) 615 return 64; 616 return __builtin_clzll(a); 617 } 618 static __inline__ 619 unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 620 __popcnt64(unsigned __int64 value) { 621 return __builtin_popcountll(value); 622 } 623 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 624 _bittest64(__int64 const *a, __int64 b) { 625 return (*a >> b) & 1; 626 } 627 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 628 _bittestandcomplement64(__int64 *a, __int64 b) { 629 unsigned char x = (*a >> b) & 1; 630 *a = *a ^ (1ll << b); 631 return x; 632 } 633 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 634 _bittestandreset64(__int64 *a, __int64 b) { 635 unsigned char x = (*a >> b) & 1; 636 *a = *a & ~(1ll << b); 637 return x; 638 } 639 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 640 _bittestandset64(__int64 *a, __int64 b) { 641 unsigned char x = (*a >> b) & 1; 642 *a = *a | (1ll << b); 643 return x; 644 } 645 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 646 _interlockedbittestandset64(__int64 volatile *__BitBase, __int64 __BitPos) { 647 unsigned char __Res; 648 __asm__ ("xor %0, %0\n" 649 "lock bts %2, %1\n" 650 "setc %0\n" 651 : "=r" (__Res), "+m"(*__BitBase) 652 : "Ir"(__BitPos)); 653 return __Res; 654 } 655 #endif 656 /*----------------------------------------------------------------------------*\ 657 |* Interlocked Exchange Add 658 \*----------------------------------------------------------------------------*/ 659 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 660 _InterlockedExchangeAdd8(char volatile *_Addend, char _Value) { 661 return __atomic_add_fetch(_Addend, _Value, 0) - _Value; 662 } 663 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 664 _InterlockedExchangeAdd16(short volatile *_Addend, short _Value) { 665 return __atomic_add_fetch(_Addend, _Value, 0) - _Value; 666 } 667 #ifdef __x86_64__ 668 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 669 _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value) { 670 return __atomic_add_fetch(_Addend, _Value, 0) - _Value; 671 } 672 #endif 673 /*----------------------------------------------------------------------------*\ 674 |* Interlocked Exchange Sub 675 \*----------------------------------------------------------------------------*/ 676 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 677 _InterlockedExchangeSub8(char volatile *_Subend, char _Value) { 678 return __atomic_sub_fetch(_Subend, _Value, 0) + _Value; 679 } 680 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 681 _InterlockedExchangeSub16(short volatile *_Subend, short _Value) { 682 return __atomic_sub_fetch(_Subend, _Value, 0) + _Value; 683 } 684 static __inline__ long __attribute__((__always_inline__, __nodebug__)) 685 _InterlockedExchangeSub(long volatile *_Subend, long _Value) { 686 return __atomic_sub_fetch(_Subend, _Value, 0) + _Value; 687 } 688 #ifdef __x86_64__ 689 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 690 _InterlockedExchangeSub64(__int64 volatile *_Subend, __int64 _Value) { 691 return __atomic_sub_fetch(_Subend, _Value, 0) + _Value; 692 } 693 #endif 694 /*----------------------------------------------------------------------------*\ 695 |* Interlocked Increment 696 \*----------------------------------------------------------------------------*/ 697 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 698 _InterlockedIncrement16(short volatile *_Value) { 699 return __atomic_add_fetch(_Value, 1, 0); 700 } 701 #ifdef __x86_64__ 702 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 703 _InterlockedIncrement64(__int64 volatile *_Value) { 704 return __atomic_add_fetch(_Value, 1, 0); 705 } 706 #endif 707 /*----------------------------------------------------------------------------*\ 708 |* Interlocked Decrement 709 \*----------------------------------------------------------------------------*/ 710 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 711 _InterlockedDecrement16(short volatile *_Value) { 712 return __atomic_sub_fetch(_Value, 1, 0); 713 } 714 #ifdef __x86_64__ 715 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 716 _InterlockedDecrement64(__int64 volatile *_Value) { 717 return __atomic_sub_fetch(_Value, 1, 0); 718 } 719 #endif 720 /*----------------------------------------------------------------------------*\ 721 |* Interlocked And 722 \*----------------------------------------------------------------------------*/ 723 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 724 _InterlockedAnd8(char volatile *_Value, char _Mask) { 725 return __atomic_and_fetch(_Value, _Mask, 0); 726 } 727 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 728 _InterlockedAnd16(short volatile *_Value, short _Mask) { 729 return __atomic_and_fetch(_Value, _Mask, 0); 730 } 731 static __inline__ long __attribute__((__always_inline__, __nodebug__)) 732 _InterlockedAnd(long volatile *_Value, long _Mask) { 733 return __atomic_and_fetch(_Value, _Mask, 0); 734 } 735 #ifdef __x86_64__ 736 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 737 _InterlockedAnd64(__int64 volatile *_Value, __int64 _Mask) { 738 return __atomic_and_fetch(_Value, _Mask, 0); 739 } 740 #endif 741 /*----------------------------------------------------------------------------*\ 742 |* Interlocked Or 743 \*----------------------------------------------------------------------------*/ 744 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 745 _InterlockedOr8(char volatile *_Value, char _Mask) { 746 return __atomic_or_fetch(_Value, _Mask, 0); 747 } 748 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 749 _InterlockedOr16(short volatile *_Value, short _Mask) { 750 return __atomic_or_fetch(_Value, _Mask, 0); 751 } 752 static __inline__ long __attribute__((__always_inline__, __nodebug__)) 753 _InterlockedOr(long volatile *_Value, long _Mask) { 754 return __atomic_or_fetch(_Value, _Mask, 0); 755 } 756 #ifdef __x86_64__ 757 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 758 _InterlockedOr64(__int64 volatile *_Value, __int64 _Mask) { 759 return __atomic_or_fetch(_Value, _Mask, 0); 760 } 761 #endif 762 /*----------------------------------------------------------------------------*\ 763 |* Interlocked Xor 764 \*----------------------------------------------------------------------------*/ 765 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 766 _InterlockedXor8(char volatile *_Value, char _Mask) { 767 return __atomic_xor_fetch(_Value, _Mask, 0); 768 } 769 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 770 _InterlockedXor16(short volatile *_Value, short _Mask) { 771 return __atomic_xor_fetch(_Value, _Mask, 0); 772 } 773 static __inline__ long __attribute__((__always_inline__, __nodebug__)) 774 _InterlockedXor(long volatile *_Value, long _Mask) { 775 return __atomic_xor_fetch(_Value, _Mask, 0); 776 } 777 #ifdef __x86_64__ 778 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 779 _InterlockedXor64(__int64 volatile *_Value, __int64 _Mask) { 780 return __atomic_xor_fetch(_Value, _Mask, 0); 781 } 782 #endif 783 /*----------------------------------------------------------------------------*\ 784 |* Interlocked Exchange 785 \*----------------------------------------------------------------------------*/ 786 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 787 _InterlockedExchange8(char volatile *_Target, char _Value) { 788 __atomic_exchange(_Target, &_Value, &_Value, 0); 789 return _Value; 790 } 791 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 792 _InterlockedExchange16(short volatile *_Target, short _Value) { 793 __atomic_exchange(_Target, &_Value, &_Value, 0); 794 return _Value; 795 } 796 #ifdef __x86_64__ 797 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 798 _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value) { 799 __atomic_exchange(_Target, &_Value, &_Value, 0); 800 return _Value; 801 } 802 #endif 803 /*----------------------------------------------------------------------------*\ 804 |* Interlocked Compare Exchange 805 \*----------------------------------------------------------------------------*/ 806 static __inline__ char __attribute__((__always_inline__, __nodebug__)) 807 _InterlockedCompareExchange8(char volatile *_Destination, 808 char _Exchange, char _Comparand) { 809 __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); 810 return _Comparand; 811 } 812 static __inline__ short __attribute__((__always_inline__, __nodebug__)) 813 _InterlockedCompareExchange16(short volatile *_Destination, 814 short _Exchange, short _Comparand) { 815 __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); 816 return _Comparand; 817 } 818 static __inline__ __int64 __attribute__((__always_inline__, __nodebug__)) 819 _InterlockedCompareExchange64(__int64 volatile *_Destination, 820 __int64 _Exchange, __int64 _Comparand) { 821 __atomic_compare_exchange(_Destination, &_Comparand, &_Exchange, 0, 0, 0); 822 return _Comparand; 823 } 824 /*----------------------------------------------------------------------------*\ 825 |* Barriers 826 \*----------------------------------------------------------------------------*/ 827 #if defined(__i386__) || defined(__x86_64__) 828 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 829 __attribute__((deprecated("use other intrinsics or C++11 atomics instead"))) 830 _ReadWriteBarrier(void) { 831 __asm__ volatile ("" : : : "memory"); 832 } 833 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 834 __attribute__((deprecated("use other intrinsics or C++11 atomics instead"))) 835 _ReadBarrier(void) { 836 __asm__ volatile ("" : : : "memory"); 837 } 838 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 839 __attribute__((deprecated("use other intrinsics or C++11 atomics instead"))) 840 _WriteBarrier(void) { 841 __asm__ volatile ("" : : : "memory"); 842 } 843 #endif 844 #ifdef __x86_64__ 845 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 846 __faststorefence(void) { 847 __asm__ volatile("lock orq $0, (%%rsp)" : : : "memory"); 848 } 849 #endif 850 /*----------------------------------------------------------------------------*\ 851 |* readfs, readgs 852 |* (Pointers in address space #256 and #257 are relative to the GS and FS 853 |* segment registers, respectively.) 854 \*----------------------------------------------------------------------------*/ 855 #define __ptr_to_addr_space(__addr_space_nbr, __type, __offset) \ 856 ((volatile __type __attribute__((__address_space__(__addr_space_nbr)))*) \ 857 (__offset)) 858 859 #ifdef __i386__ 860 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 861 __readfsbyte(unsigned long __offset) { 862 return *__ptr_to_addr_space(257, unsigned char, __offset); 863 } 864 static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) 865 __readfsdword(unsigned long __offset) { 866 return *__ptr_to_addr_space(257, unsigned long, __offset); 867 } 868 static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 869 __readfsqword(unsigned long __offset) { 870 return *__ptr_to_addr_space(257, unsigned __int64, __offset); 871 } 872 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) 873 __readfsword(unsigned long __offset) { 874 return *__ptr_to_addr_space(257, unsigned short, __offset); 875 } 876 #endif 877 #ifdef __x86_64__ 878 static __inline__ unsigned char __attribute__((__always_inline__, __nodebug__)) 879 __readgsbyte(unsigned long __offset) { 880 return *__ptr_to_addr_space(256, unsigned char, __offset); 881 } 882 static __inline__ unsigned long __attribute__((__always_inline__, __nodebug__)) 883 __readgsdword(unsigned long __offset) { 884 return *__ptr_to_addr_space(256, unsigned long, __offset); 885 } 886 static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 887 __readgsqword(unsigned long __offset) { 888 return *__ptr_to_addr_space(256, unsigned __int64, __offset); 889 } 890 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__)) 891 __readgsword(unsigned long __offset) { 892 return *__ptr_to_addr_space(256, unsigned short, __offset); 893 } 894 #endif 895 #undef __ptr_to_addr_space 896 /*----------------------------------------------------------------------------*\ 897 |* movs, stos 898 \*----------------------------------------------------------------------------*/ 899 #if defined(__i386__) || defined(__x86_64__) 900 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 901 __movsb(unsigned char *__dst, unsigned char const *__src, size_t __n) { 902 __asm__("rep movsb" : : "D"(__dst), "S"(__src), "c"(__n) 903 : "%edi", "%esi", "%ecx"); 904 } 905 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 906 __movsd(unsigned long *__dst, unsigned long const *__src, size_t __n) { 907 __asm__("rep movsl" : : "D"(__dst), "S"(__src), "c"(__n) 908 : "%edi", "%esi", "%ecx"); 909 } 910 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 911 __movsw(unsigned short *__dst, unsigned short const *__src, size_t __n) { 912 __asm__("rep movsh" : : "D"(__dst), "S"(__src), "c"(__n) 913 : "%edi", "%esi", "%ecx"); 914 } 915 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 916 __stosb(unsigned char *__dst, unsigned char __x, size_t __n) { 917 __asm__("rep stosb" : : "D"(__dst), "a"(__x), "c"(__n) 918 : "%edi", "%ecx"); 919 } 920 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 921 __stosd(unsigned long *__dst, unsigned long __x, size_t __n) { 922 __asm__("rep stosl" : : "D"(__dst), "a"(__x), "c"(__n) 923 : "%edi", "%ecx"); 924 } 925 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 926 __stosw(unsigned short *__dst, unsigned short __x, size_t __n) { 927 __asm__("rep stosh" : : "D"(__dst), "a"(__x), "c"(__n) 928 : "%edi", "%ecx"); 929 } 930 #endif 931 #ifdef __x86_64__ 932 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 933 __movsq(unsigned long long *__dst, unsigned long long const *__src, size_t __n) { 934 __asm__("rep movsq" : : "D"(__dst), "S"(__src), "c"(__n) 935 : "%edi", "%esi", "%ecx"); 936 } 937 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 938 __stosq(unsigned __int64 *__dst, unsigned __int64 __x, size_t __n) { 939 __asm__("rep stosq" : : "D"(__dst), "a"(__x), "c"(__n) 940 : "%edi", "%ecx"); 941 } 942 #endif 943 944 /*----------------------------------------------------------------------------*\ 945 |* Misc 946 \*----------------------------------------------------------------------------*/ 947 static __inline__ void * __attribute__((__always_inline__, __nodebug__)) 948 _AddressOfReturnAddress(void) { 949 return (void*)((char*)__builtin_frame_address(0) + sizeof(void*)); 950 } 951 static __inline__ void * __attribute__((__always_inline__, __nodebug__)) 952 _ReturnAddress(void) { 953 return __builtin_return_address(0); 954 } 955 #if defined(__i386__) || defined(__x86_64__) 956 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 957 __cpuid(int __info[4], int __level) { 958 __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) 959 : "a"(__level)); 960 } 961 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 962 __cpuidex(int __info[4], int __level, int __ecx) { 963 __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) 964 : "a"(__level), "c"(__ecx)); 965 } 966 static __inline__ unsigned __int64 __cdecl __attribute__((__always_inline__, __nodebug__)) 967 _xgetbv(unsigned int __xcr_no) { 968 unsigned int __eax, __edx; 969 __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no)); 970 return ((unsigned __int64)__edx << 32) | __eax; 971 } 972 static __inline__ void __attribute__((__always_inline__, __nodebug__)) 973 __halt(void) { 974 __asm__ volatile ("hlt"); 975 } 976 #endif 977 978 /*----------------------------------------------------------------------------*\ 979 |* Privileged intrinsics 980 \*----------------------------------------------------------------------------*/ 981 #if defined(__i386__) || defined(__x86_64__) 982 static __inline__ unsigned __int64 __attribute__((__always_inline__, __nodebug__)) 983 __readmsr(unsigned long __register) { 984 // Loads the contents of a 64-bit model specific register (MSR) specified in 985 // the ECX register into registers EDX:EAX. The EDX register is loaded with 986 // the high-order 32 bits of the MSR and the EAX register is loaded with the 987 // low-order 32 bits. If less than 64 bits are implemented in the MSR being 988 // read, the values returned to EDX:EAX in unimplemented bit locations are 989 // undefined. 990 unsigned long __edx; 991 unsigned long __eax; 992 __asm__ ("rdmsr" : "=d"(__edx), "=a"(__eax) : "c"(__register)); 993 return (((unsigned __int64)__edx) << 32) | (unsigned __int64)__eax; 994 } 995 996 static __inline__ unsigned long __attribute__((always_inline, __nodebug__)) 997 __readcr3(void) { 998 unsigned long __cr3_val; 999 __asm__ __volatile__ ("mov %%cr3, %0" : "=q"(__cr3_val) : : "memory"); 1000 return __cr3_val; 1001 } 1002 1003 static __inline__ void __attribute__((always_inline, __nodebug__)) 1004 __writecr3(unsigned int __cr3_val) { 1005 __asm__ ("mov %0, %%cr3" : : "q"(__cr3_val) : "memory"); 1006 } 1007 #endif 1008 1009 #ifdef __cplusplus 1010 } 1011 #endif 1012 1013 #endif /* __INTRIN_H */ 1014 #endif /* _MSC_VER */ 1015
