1 /* ===-------- intrin.h ---------------------------------------------------=== 2 * 3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 * See https://llvm.org/LICENSE.txt for license information. 5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 * 7 *===-----------------------------------------------------------------------=== 8 */ 9 10 /* Only include this if we're compiling for the windows platform. */ 11 #ifndef _MSC_VER 12 #include_next <intrin.h> 13 #else 14 15 #ifndef __INTRIN_H 16 #define __INTRIN_H 17 18 /* First include the standard intrinsics. */ 19 #if defined(__i386__) || defined(__x86_64__) 20 #include <x86intrin.h> 21 #endif 22 23 #if defined(__arm__) 24 #include <armintr.h> 25 #endif 26 27 #if defined(__aarch64__) 28 #include <arm64intr.h> 29 #endif 30 31 /* For the definition of jmp_buf. */ 32 #if __STDC_HOSTED__ 33 #include <setjmp.h> 34 #endif 35 36 /* Define the default attributes for the functions in this file. */ 37 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__)) 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #if defined(__MMX__) 44 /* And the random ones that aren't in those files. */ 45 __m64 _m_from_float(float); 46 float _m_to_float(__m64); 47 #endif 48 49 /* Other assorted instruction intrinsics. */ 50 void __addfsbyte(unsigned long, unsigned char); 51 void __addfsdword(unsigned long, unsigned long); 52 void __addfsword(unsigned long, unsigned short); 53 void __code_seg(const char *); 54 static __inline__ 55 void __cpuid(int[4], int); 56 static __inline__ 57 void __cpuidex(int[4], int, int); 58 static __inline__ 59 __int64 __emul(int, int); 60 static __inline__ 61 unsigned __int64 __emulu(unsigned int, unsigned int); 62 unsigned int __getcallerseflags(void); 63 static __inline__ 64 void __halt(void); 65 unsigned char __inbyte(unsigned short); 66 void __inbytestring(unsigned short, unsigned char *, unsigned long); 67 void __incfsbyte(unsigned long); 68 void __incfsdword(unsigned long); 69 void __incfsword(unsigned long); 70 unsigned long __indword(unsigned short); 71 void __indwordstring(unsigned short, unsigned long *, unsigned long); 72 void __int2c(void); 73 void __invlpg(void *); 74 unsigned short __inword(unsigned short); 75 void __inwordstring(unsigned short, unsigned short *, unsigned long); 76 void __lidt(void *); 77 unsigned __int64 __ll_lshift(unsigned __int64, int); 78 __int64 __ll_rshift(__int64, int); 79 static __inline__ 80 void __movsb(unsigned char *, unsigned char const *, size_t); 81 static __inline__ 82 void __movsd(unsigned long *, unsigned long const *, size_t); 83 static __inline__ 84 void __movsw(unsigned short *, unsigned short const *, size_t); 85 static __inline__ 86 void __nop(void); 87 void __nvreg_restore_fence(void); 88 void __nvreg_save_fence(void); 89 void __outbyte(unsigned short, unsigned char); 90 void __outbytestring(unsigned short, unsigned char *, unsigned long); 91 void __outdword(unsigned short, unsigned long); 92 void __outdwordstring(unsigned short, unsigned long *, unsigned long); 93 void __outword(unsigned short, unsigned short); 94 void __outwordstring(unsigned short, unsigned short *, unsigned long); 95 unsigned long __readcr0(void); 96 unsigned long __readcr2(void); 97 static __inline__ 98 unsigned long __readcr3(void); 99 unsigned long __readcr4(void); 100 unsigned long __readcr8(void); 101 unsigned int __readdr(unsigned int); 102 #ifdef __i386__ 103 static __inline__ 104 unsigned char __readfsbyte(unsigned long); 105 static __inline__ 106 unsigned __int64 __readfsqword(unsigned long); 107 static __inline__ 108 unsigned short __readfsword(unsigned long); 109 #endif 110 static __inline__ 111 unsigned __int64 __readmsr(unsigned long); 112 unsigned __int64 __readpmc(unsigned long); 113 unsigned long __segmentlimit(unsigned long); 114 void __sidt(void *); 115 static __inline__ 116 void __stosb(unsigned char *, unsigned char, size_t); 117 static __inline__ 118 void __stosd(unsigned long *, unsigned long, size_t); 119 static __inline__ 120 void __stosw(unsigned short *, unsigned short, size_t); 121 void __svm_clgi(void); 122 void __svm_invlpga(void *, int); 123 void __svm_skinit(int); 124 void __svm_stgi(void); 125 void __svm_vmload(size_t); 126 void __svm_vmrun(size_t); 127 void __svm_vmsave(size_t); 128 void __ud2(void); 129 unsigned __int64 __ull_rshift(unsigned __int64, int); 130 void __vmx_off(void); 131 void __vmx_vmptrst(unsigned __int64 *); 132 void __wbinvd(void); 133 void __writecr0(unsigned int); 134 static __inline__ 135 void __writecr3(unsigned int); 136 void __writecr4(unsigned int); 137 void __writecr8(unsigned int); 138 void __writedr(unsigned int, unsigned int); 139 void __writefsbyte(unsigned long, unsigned char); 140 void __writefsdword(unsigned long, unsigned long); 141 void __writefsqword(unsigned long, unsigned __int64); 142 void __writefsword(unsigned long, unsigned short); 143 void __writemsr(unsigned long, unsigned __int64); 144 static __inline__ 145 void *_AddressOfReturnAddress(void); 146 static __inline__ 147 unsigned char _BitScanForward(unsigned long *_Index, unsigned long _Mask); 148 static __inline__ 149 unsigned char _BitScanReverse(unsigned long *_Index, unsigned long _Mask); 150 unsigned char _bittest(long const *, long); 151 unsigned char _bittestandcomplement(long *, long); 152 unsigned char _bittestandreset(long *, long); 153 unsigned char _bittestandset(long *, long); 154 void __cdecl _disable(void); 155 void __cdecl _enable(void); 156 long _InterlockedAddLargeStatistic(__int64 volatile *_Addend, long _Value); 157 unsigned char _interlockedbittestandreset(long volatile *, long); 158 unsigned char _interlockedbittestandset(long volatile *, long); 159 void *_InterlockedCompareExchangePointer_HLEAcquire(void *volatile *, void *, 160 void *); 161 void *_InterlockedCompareExchangePointer_HLERelease(void *volatile *, void *, 162 void *); 163 long _InterlockedExchangeAdd_HLEAcquire(long volatile *, long); 164 long _InterlockedExchangeAdd_HLERelease(long volatile *, long); 165 __int64 _InterlockedExchangeAdd64_HLEAcquire(__int64 volatile *, __int64); 166 __int64 _InterlockedExchangeAdd64_HLERelease(__int64 volatile *, __int64); 167 void __cdecl _invpcid(unsigned int, void *); 168 static __inline__ void 169 __attribute__((__deprecated__("use other intrinsics or C++11 atomics instead"))) 170 _ReadBarrier(void); 171 static __inline__ void 172 __attribute__((__deprecated__("use other intrinsics or C++11 atomics instead"))) 173 _ReadWriteBarrier(void); 174 unsigned int _rorx_u32(unsigned int, const unsigned int); 175 int _sarx_i32(int, unsigned int); 176 #if __STDC_HOSTED__ 177 int __cdecl _setjmp(jmp_buf); 178 #endif 179 unsigned int _shlx_u32(unsigned int, unsigned int); 180 unsigned int _shrx_u32(unsigned int, unsigned int); 181 void _Store_HLERelease(long volatile *, long); 182 void _Store64_HLERelease(__int64 volatile *, __int64); 183 void _StorePointer_HLERelease(void *volatile *, void *); 184 static __inline__ void 185 __attribute__((__deprecated__("use other intrinsics or C++11 atomics instead"))) 186 _WriteBarrier(void); 187 unsigned __int32 xbegin(void); 188 void _xend(void); 189 190 /* These additional intrinsics are turned on in x64/amd64/x86_64 mode. */ 191 #ifdef __x86_64__ 192 void __addgsbyte(unsigned long, unsigned char); 193 void __addgsdword(unsigned long, unsigned long); 194 void __addgsqword(unsigned long, unsigned __int64); 195 void __addgsword(unsigned long, unsigned short); 196 static __inline__ 197 void __faststorefence(void); 198 void __incgsbyte(unsigned long); 199 void __incgsdword(unsigned long); 200 void __incgsqword(unsigned long); 201 void __incgsword(unsigned long); 202 static __inline__ 203 void __movsq(unsigned long long *, unsigned long long const *, size_t); 204 static __inline__ 205 unsigned char __readgsbyte(unsigned long); 206 static __inline__ 207 unsigned long __readgsdword(unsigned long); 208 static __inline__ 209 unsigned __int64 __readgsqword(unsigned long); 210 unsigned short __readgsword(unsigned long); 211 unsigned __int64 __shiftleft128(unsigned __int64 _LowPart, 212 unsigned __int64 _HighPart, 213 unsigned char _Shift); 214 unsigned __int64 __shiftright128(unsigned __int64 _LowPart, 215 unsigned __int64 _HighPart, 216 unsigned char _Shift); 217 static __inline__ 218 void __stosq(unsigned __int64 *, unsigned __int64, size_t); 219 unsigned char __vmx_on(unsigned __int64 *); 220 unsigned char __vmx_vmclear(unsigned __int64 *); 221 unsigned char __vmx_vmlaunch(void); 222 unsigned char __vmx_vmptrld(unsigned __int64 *); 223 unsigned char __vmx_vmread(size_t, size_t *); 224 unsigned char __vmx_vmresume(void); 225 unsigned char __vmx_vmwrite(size_t, size_t); 226 void __writegsbyte(unsigned long, unsigned char); 227 void __writegsdword(unsigned long, unsigned long); 228 void __writegsqword(unsigned long, unsigned __int64); 229 void __writegsword(unsigned long, unsigned short); 230 unsigned char _bittest64(__int64 const *, __int64); 231 unsigned char _bittestandcomplement64(__int64 *, __int64); 232 unsigned char _bittestandreset64(__int64 *, __int64); 233 unsigned char _bittestandset64(__int64 *, __int64); 234 long _InterlockedAnd_np(long volatile *_Value, long _Mask); 235 short _InterlockedAnd16_np(short volatile *_Value, short _Mask); 236 __int64 _InterlockedAnd64_np(__int64 volatile *_Value, __int64 _Mask); 237 char _InterlockedAnd8_np(char volatile *_Value, char _Mask); 238 unsigned char _interlockedbittestandreset64(__int64 volatile *, __int64); 239 unsigned char _interlockedbittestandset64(__int64 volatile *, __int64); 240 long _InterlockedCompareExchange_np(long volatile *_Destination, long _Exchange, 241 long _Comparand); 242 unsigned char _InterlockedCompareExchange128(__int64 volatile *_Destination, 243 __int64 _ExchangeHigh, 244 __int64 _ExchangeLow, 245 __int64 *_CompareandResult); 246 unsigned char _InterlockedCompareExchange128_np(__int64 volatile *_Destination, 247 __int64 _ExchangeHigh, 248 __int64 _ExchangeLow, 249 __int64 *_ComparandResult); 250 short _InterlockedCompareExchange16_np(short volatile *_Destination, 251 short _Exchange, short _Comparand); 252 __int64 _InterlockedCompareExchange64_np(__int64 volatile *_Destination, 253 __int64 _Exchange, __int64 _Comparand); 254 void *_InterlockedCompareExchangePointer_np(void *volatile *_Destination, 255 void *_Exchange, void *_Comparand); 256 long _InterlockedOr_np(long volatile *_Value, long _Mask); 257 short _InterlockedOr16_np(short volatile *_Value, short _Mask); 258 __int64 _InterlockedOr64_np(__int64 volatile *_Value, __int64 _Mask); 259 char _InterlockedOr8_np(char volatile *_Value, char _Mask); 260 long _InterlockedXor_np(long volatile *_Value, long _Mask); 261 short _InterlockedXor16_np(short volatile *_Value, short _Mask); 262 __int64 _InterlockedXor64_np(__int64 volatile *_Value, __int64 _Mask); 263 char _InterlockedXor8_np(char volatile *_Value, char _Mask); 264 unsigned __int64 _rorx_u64(unsigned __int64, const unsigned int); 265 __int64 _sarx_i64(__int64, unsigned int); 266 unsigned __int64 _shlx_u64(unsigned __int64, unsigned int); 267 unsigned __int64 _shrx_u64(unsigned __int64, unsigned int); 268 static __inline__ 269 __int64 __mulh(__int64, __int64); 270 static __inline__ 271 unsigned __int64 __umulh(unsigned __int64, unsigned __int64); 272 static __inline__ 273 __int64 _mul128(__int64, __int64, __int64*); 274 static __inline__ 275 unsigned __int64 _umul128(unsigned __int64, 276 unsigned __int64, 277 unsigned __int64*); 278 279 #endif /* __x86_64__ */ 280 281 #if defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) 282 283 static __inline__ 284 unsigned char _BitScanForward64(unsigned long *_Index, unsigned __int64 _Mask); 285 static __inline__ 286 unsigned char _BitScanReverse64(unsigned long *_Index, unsigned __int64 _Mask); 287 288 static __inline__ 289 __int64 _InterlockedDecrement64(__int64 volatile *_Addend); 290 static __inline__ 291 __int64 _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value); 292 static __inline__ 293 __int64 _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value); 294 static __inline__ 295 __int64 _InterlockedExchangeSub64(__int64 volatile *_Subend, __int64 _Value); 296 static __inline__ 297 __int64 _InterlockedIncrement64(__int64 volatile *_Addend); 298 static __inline__ 299 __int64 _InterlockedOr64(__int64 volatile *_Value, __int64 _Mask); 300 static __inline__ 301 __int64 _InterlockedXor64(__int64 volatile *_Value, __int64 _Mask); 302 static __inline__ 303 __int64 _InterlockedAnd64(__int64 volatile *_Value, __int64 _Mask); 304 305 #endif 306 307 /*----------------------------------------------------------------------------*\ 308 |* Interlocked Exchange Add 309 \*----------------------------------------------------------------------------*/ 310 #if defined(__arm__) || defined(__aarch64__) 311 char _InterlockedExchangeAdd8_acq(char volatile *_Addend, char _Value); 312 char _InterlockedExchangeAdd8_nf(char volatile *_Addend, char _Value); 313 char _InterlockedExchangeAdd8_rel(char volatile *_Addend, char _Value); 314 short _InterlockedExchangeAdd16_acq(short volatile *_Addend, short _Value); 315 short _InterlockedExchangeAdd16_nf(short volatile *_Addend, short _Value); 316 short _InterlockedExchangeAdd16_rel(short volatile *_Addend, short _Value); 317 long _InterlockedExchangeAdd_acq(long volatile *_Addend, long _Value); 318 long _InterlockedExchangeAdd_nf(long volatile *_Addend, long _Value); 319 long _InterlockedExchangeAdd_rel(long volatile *_Addend, long _Value); 320 __int64 _InterlockedExchangeAdd64_acq(__int64 volatile *_Addend, __int64 _Value); 321 __int64 _InterlockedExchangeAdd64_nf(__int64 volatile *_Addend, __int64 _Value); 322 __int64 _InterlockedExchangeAdd64_rel(__int64 volatile *_Addend, __int64 _Value); 323 #endif 324 /*----------------------------------------------------------------------------*\ 325 |* Interlocked Increment 326 \*----------------------------------------------------------------------------*/ 327 #if defined(__arm__) || defined(__aarch64__) 328 short _InterlockedIncrement16_acq(short volatile *_Value); 329 short _InterlockedIncrement16_nf(short volatile *_Value); 330 short _InterlockedIncrement16_rel(short volatile *_Value); 331 long _InterlockedIncrement_acq(long volatile *_Value); 332 long _InterlockedIncrement_nf(long volatile *_Value); 333 long _InterlockedIncrement_rel(long volatile *_Value); 334 __int64 _InterlockedIncrement64_acq(__int64 volatile *_Value); 335 __int64 _InterlockedIncrement64_nf(__int64 volatile *_Value); 336 __int64 _InterlockedIncrement64_rel(__int64 volatile *_Value); 337 #endif 338 /*----------------------------------------------------------------------------*\ 339 |* Interlocked Decrement 340 \*----------------------------------------------------------------------------*/ 341 #if defined(__arm__) || defined(__aarch64__) 342 short _InterlockedDecrement16_acq(short volatile *_Value); 343 short _InterlockedDecrement16_nf(short volatile *_Value); 344 short _InterlockedDecrement16_rel(short volatile *_Value); 345 long _InterlockedDecrement_acq(long volatile *_Value); 346 long _InterlockedDecrement_nf(long volatile *_Value); 347 long _InterlockedDecrement_rel(long volatile *_Value); 348 __int64 _InterlockedDecrement64_acq(__int64 volatile *_Value); 349 __int64 _InterlockedDecrement64_nf(__int64 volatile *_Value); 350 __int64 _InterlockedDecrement64_rel(__int64 volatile *_Value); 351 #endif 352 /*----------------------------------------------------------------------------*\ 353 |* Interlocked And 354 \*----------------------------------------------------------------------------*/ 355 #if defined(__arm__) || defined(__aarch64__) 356 char _InterlockedAnd8_acq(char volatile *_Value, char _Mask); 357 char _InterlockedAnd8_nf(char volatile *_Value, char _Mask); 358 char _InterlockedAnd8_rel(char volatile *_Value, char _Mask); 359 short _InterlockedAnd16_acq(short volatile *_Value, short _Mask); 360 short _InterlockedAnd16_nf(short volatile *_Value, short _Mask); 361 short _InterlockedAnd16_rel(short volatile *_Value, short _Mask); 362 long _InterlockedAnd_acq(long volatile *_Value, long _Mask); 363 long _InterlockedAnd_nf(long volatile *_Value, long _Mask); 364 long _InterlockedAnd_rel(long volatile *_Value, long _Mask); 365 __int64 _InterlockedAnd64_acq(__int64 volatile *_Value, __int64 _Mask); 366 __int64 _InterlockedAnd64_nf(__int64 volatile *_Value, __int64 _Mask); 367 __int64 _InterlockedAnd64_rel(__int64 volatile *_Value, __int64 _Mask); 368 #endif 369 /*----------------------------------------------------------------------------*\ 370 |* Bit Counting and Testing 371 \*----------------------------------------------------------------------------*/ 372 #if defined(__arm__) || defined(__aarch64__) 373 unsigned char _interlockedbittestandset_acq(long volatile *_BitBase, 374 long _BitPos); 375 unsigned char _interlockedbittestandset_nf(long volatile *_BitBase, 376 long _BitPos); 377 unsigned char _interlockedbittestandset_rel(long volatile *_BitBase, 378 long _BitPos); 379 unsigned char _interlockedbittestandreset_acq(long volatile *_BitBase, 380 long _BitPos); 381 unsigned char _interlockedbittestandreset_nf(long volatile *_BitBase, 382 long _BitPos); 383 unsigned char _interlockedbittestandreset_rel(long volatile *_BitBase, 384 long _BitPos); 385 #endif 386 /*----------------------------------------------------------------------------*\ 387 |* Interlocked Or 388 \*----------------------------------------------------------------------------*/ 389 #if defined(__arm__) || defined(__aarch64__) 390 char _InterlockedOr8_acq(char volatile *_Value, char _Mask); 391 char _InterlockedOr8_nf(char volatile *_Value, char _Mask); 392 char _InterlockedOr8_rel(char volatile *_Value, char _Mask); 393 short _InterlockedOr16_acq(short volatile *_Value, short _Mask); 394 short _InterlockedOr16_nf(short volatile *_Value, short _Mask); 395 short _InterlockedOr16_rel(short volatile *_Value, short _Mask); 396 long _InterlockedOr_acq(long volatile *_Value, long _Mask); 397 long _InterlockedOr_nf(long volatile *_Value, long _Mask); 398 long _InterlockedOr_rel(long volatile *_Value, long _Mask); 399 __int64 _InterlockedOr64_acq(__int64 volatile *_Value, __int64 _Mask); 400 __int64 _InterlockedOr64_nf(__int64 volatile *_Value, __int64 _Mask); 401 __int64 _InterlockedOr64_rel(__int64 volatile *_Value, __int64 _Mask); 402 #endif 403 /*----------------------------------------------------------------------------*\ 404 |* Interlocked Xor 405 \*----------------------------------------------------------------------------*/ 406 #if defined(__arm__) || defined(__aarch64__) 407 char _InterlockedXor8_acq(char volatile *_Value, char _Mask); 408 char _InterlockedXor8_nf(char volatile *_Value, char _Mask); 409 char _InterlockedXor8_rel(char volatile *_Value, char _Mask); 410 short _InterlockedXor16_acq(short volatile *_Value, short _Mask); 411 short _InterlockedXor16_nf(short volatile *_Value, short _Mask); 412 short _InterlockedXor16_rel(short volatile *_Value, short _Mask); 413 long _InterlockedXor_acq(long volatile *_Value, long _Mask); 414 long _InterlockedXor_nf(long volatile *_Value, long _Mask); 415 long _InterlockedXor_rel(long volatile *_Value, long _Mask); 416 __int64 _InterlockedXor64_acq(__int64 volatile *_Value, __int64 _Mask); 417 __int64 _InterlockedXor64_nf(__int64 volatile *_Value, __int64 _Mask); 418 __int64 _InterlockedXor64_rel(__int64 volatile *_Value, __int64 _Mask); 419 #endif 420 /*----------------------------------------------------------------------------*\ 421 |* Interlocked Exchange 422 \*----------------------------------------------------------------------------*/ 423 #if defined(__arm__) || defined(__aarch64__) 424 char _InterlockedExchange8_acq(char volatile *_Target, char _Value); 425 char _InterlockedExchange8_nf(char volatile *_Target, char _Value); 426 char _InterlockedExchange8_rel(char volatile *_Target, char _Value); 427 short _InterlockedExchange16_acq(short volatile *_Target, short _Value); 428 short _InterlockedExchange16_nf(short volatile *_Target, short _Value); 429 short _InterlockedExchange16_rel(short volatile *_Target, short _Value); 430 long _InterlockedExchange_acq(long volatile *_Target, long _Value); 431 long _InterlockedExchange_nf(long volatile *_Target, long _Value); 432 long _InterlockedExchange_rel(long volatile *_Target, long _Value); 433 __int64 _InterlockedExchange64_acq(__int64 volatile *_Target, __int64 _Value); 434 __int64 _InterlockedExchange64_nf(__int64 volatile *_Target, __int64 _Value); 435 __int64 _InterlockedExchange64_rel(__int64 volatile *_Target, __int64 _Value); 436 #endif 437 /*----------------------------------------------------------------------------*\ 438 |* Interlocked Compare Exchange 439 \*----------------------------------------------------------------------------*/ 440 #if defined(__arm__) || defined(__aarch64__) 441 char _InterlockedCompareExchange8_acq(char volatile *_Destination, 442 char _Exchange, char _Comparand); 443 char _InterlockedCompareExchange8_nf(char volatile *_Destination, 444 char _Exchange, char _Comparand); 445 char _InterlockedCompareExchange8_rel(char volatile *_Destination, 446 char _Exchange, char _Comparand); 447 short _InterlockedCompareExchange16_acq(short volatile *_Destination, 448 short _Exchange, short _Comparand); 449 short _InterlockedCompareExchange16_nf(short volatile *_Destination, 450 short _Exchange, short _Comparand); 451 short _InterlockedCompareExchange16_rel(short volatile *_Destination, 452 short _Exchange, short _Comparand); 453 long _InterlockedCompareExchange_acq(long volatile *_Destination, 454 long _Exchange, long _Comparand); 455 long _InterlockedCompareExchange_nf(long volatile *_Destination, 456 long _Exchange, long _Comparand); 457 long _InterlockedCompareExchange_rel(long volatile *_Destination, 458 long _Exchange, long _Comparand); 459 __int64 _InterlockedCompareExchange64_acq(__int64 volatile *_Destination, 460 __int64 _Exchange, __int64 _Comparand); 461 __int64 _InterlockedCompareExchange64_nf(__int64 volatile *_Destination, 462 __int64 _Exchange, __int64 _Comparand); 463 __int64 _InterlockedCompareExchange64_rel(__int64 volatile *_Destination, 464 __int64 _Exchange, __int64 _Comparand); 465 #endif 466 467 /*----------------------------------------------------------------------------*\ 468 |* movs, stos 469 \*----------------------------------------------------------------------------*/ 470 #if defined(__i386__) || defined(__x86_64__) 471 static __inline__ void __DEFAULT_FN_ATTRS 472 __movsb(unsigned char *__dst, unsigned char const *__src, size_t __n) { 473 __asm__ __volatile__("rep movsb" : "+D"(__dst), "+S"(__src), "+c"(__n) 474 : : "memory"); 475 } 476 static __inline__ void __DEFAULT_FN_ATTRS 477 __movsd(unsigned long *__dst, unsigned long const *__src, size_t __n) { 478 __asm__ __volatile__("rep movsl" : "+D"(__dst), "+S"(__src), "+c"(__n) 479 : : "memory"); 480 } 481 static __inline__ void __DEFAULT_FN_ATTRS 482 __movsw(unsigned short *__dst, unsigned short const *__src, size_t __n) { 483 __asm__ __volatile__("rep movsw" : "+D"(__dst), "+S"(__src), "+c"(__n) 484 : : "memory"); 485 } 486 static __inline__ void __DEFAULT_FN_ATTRS 487 __stosd(unsigned long *__dst, unsigned long __x, size_t __n) { 488 __asm__ __volatile__("rep stosl" : "+D"(__dst), "+c"(__n) : "a"(__x) 489 : "memory"); 490 } 491 static __inline__ void __DEFAULT_FN_ATTRS 492 __stosw(unsigned short *__dst, unsigned short __x, size_t __n) { 493 __asm__ __volatile__("rep stosw" : "+D"(__dst), "+c"(__n) : "a"(__x) 494 : "memory"); 495 } 496 #endif 497 #ifdef __x86_64__ 498 static __inline__ void __DEFAULT_FN_ATTRS 499 __movsq(unsigned long long *__dst, unsigned long long const *__src, size_t __n) { 500 __asm__ __volatile__("rep movsq" : "+D"(__dst), "+S"(__src), "+c"(__n) 501 : : "memory"); 502 } 503 static __inline__ void __DEFAULT_FN_ATTRS 504 __stosq(unsigned __int64 *__dst, unsigned __int64 __x, size_t __n) { 505 __asm__ __volatile__("rep stosq" : "+D"(__dst), "+c"(__n) : "a"(__x) 506 : "memory"); 507 } 508 #endif 509 510 /*----------------------------------------------------------------------------*\ 511 |* Misc 512 \*----------------------------------------------------------------------------*/ 513 #if defined(__i386__) || defined(__x86_64__) 514 static __inline__ void __DEFAULT_FN_ATTRS 515 __cpuid(int __info[4], int __level) { 516 __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) 517 : "a"(__level), "c"(0)); 518 } 519 static __inline__ void __DEFAULT_FN_ATTRS 520 __cpuidex(int __info[4], int __level, int __ecx) { 521 __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) 522 : "a"(__level), "c"(__ecx)); 523 } 524 static __inline__ void __DEFAULT_FN_ATTRS 525 __halt(void) { 526 __asm__ volatile ("hlt"); 527 } 528 #endif 529 530 #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) 531 static __inline__ void __DEFAULT_FN_ATTRS 532 __nop(void) { 533 __asm__ volatile ("nop"); 534 } 535 #endif 536 537 /*----------------------------------------------------------------------------*\ 538 |* MS AArch64 specific 539 \*----------------------------------------------------------------------------*/ 540 #if defined(__aarch64__) 541 unsigned __int64 __getReg(int); 542 long _InterlockedAdd(long volatile *Addend, long Value); 543 __int64 _ReadStatusReg(int); 544 void _WriteStatusReg(int, __int64); 545 546 unsigned short __cdecl _byteswap_ushort(unsigned short val); 547 unsigned long __cdecl _byteswap_ulong (unsigned long val); 548 unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64 val); 549 #endif 550 551 /*----------------------------------------------------------------------------*\ 552 |* Privileged intrinsics 553 \*----------------------------------------------------------------------------*/ 554 #if defined(__i386__) || defined(__x86_64__) 555 static __inline__ unsigned __int64 __DEFAULT_FN_ATTRS 556 __readmsr(unsigned long __register) { 557 // Loads the contents of a 64-bit model specific register (MSR) specified in 558 // the ECX register into registers EDX:EAX. The EDX register is loaded with 559 // the high-order 32 bits of the MSR and the EAX register is loaded with the 560 // low-order 32 bits. If less than 64 bits are implemented in the MSR being 561 // read, the values returned to EDX:EAX in unimplemented bit locations are 562 // undefined. 563 unsigned long __edx; 564 unsigned long __eax; 565 __asm__ ("rdmsr" : "=d"(__edx), "=a"(__eax) : "c"(__register)); 566 return (((unsigned __int64)__edx) << 32) | (unsigned __int64)__eax; 567 } 568 569 static __inline__ unsigned long __DEFAULT_FN_ATTRS 570 __readcr3(void) { 571 unsigned long __cr3_val; 572 __asm__ __volatile__ ("mov %%cr3, %0" : "=q"(__cr3_val) : : "memory"); 573 return __cr3_val; 574 } 575 576 static __inline__ void __DEFAULT_FN_ATTRS 577 __writecr3(unsigned int __cr3_val) { 578 __asm__ ("mov %0, %%cr3" : : "q"(__cr3_val) : "memory"); 579 } 580 #endif 581 582 #ifdef __cplusplus 583 } 584 #endif 585 586 #undef __DEFAULT_FN_ATTRS 587 588 #endif /* __INTRIN_H */ 589 #endif /* _MSC_VER */ 590