github.com/panjjo/go@v0.0.0-20161104043856-d62b31386338/src/runtime/cpuidlow_amd64.s (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // func cpuid_low(arg1, arg2 uint32) (eax, ebx, ecx, edx uint32)
     6  TEXT ·cpuid_low(SB), 4, $0-24
     7      MOVL    arg1+0(FP), AX
     8      MOVL    arg2+4(FP), CX
     9      CPUID
    10      MOVL AX, eax+8(FP)
    11      MOVL BX, ebx+12(FP)
    12      MOVL CX, ecx+16(FP)
    13      MOVL DX, edx+20(FP)
    14      RET
    15  // func xgetbv_low(arg1 uint32) (eax, edx uint32)
    16  TEXT ·xgetbv_low(SB), 4, $0-16
    17      MOVL arg1+0(FP), CX
    18      // XGETBV
    19      BYTE $0x0F; BYTE $0x01; BYTE $0xD0
    20      MOVL AX,eax+8(FP)
    21      MOVL DX,edx+12(FP)
    22      RET