1 // Copyright 2017 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 // +build 386 amd64 amd64p32 6 7 #include "textflag.h" 8 9 // func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) 10 TEXT cpuid(SB), NOSPLIT, $0-24 11 MOVL eaxArg+0(FP), AX 12 MOVL ecxArg+4(FP), CX 13 CPUID 14 MOVL AX, eax+8(FP) 15 MOVL BX, ebx+12(FP) 16 MOVL CX, ecx+16(FP) 17 MOVL DX, edx+20(FP) 18 RET 19 20 // func xgetbv() (eax, edx uint32) 21 TEXT xgetbv(SB),NOSPLIT,$0-8 22 #ifdef GOOS_nacl 23 // nacl does not support XGETBV. 24 MOVL $0, eax+0(FP) 25 MOVL $0, edx+4(FP) 26 #else 27 MOVL $0, CX 28 XGETBV 29 MOVL AX, eax+0(FP) 30 MOVL DX, edx+4(FP) 31 #endif 32 RET 33
