| // Copyright 2017 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| //go:build 386 || amd64 |
| |
| #include "textflag.h" |
| |
| // func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) |
| TEXT ·cpuid(SB), NOSPLIT, $0-24 |
| MOVL eaxArg+0(FP), AX |
| MOVL ecxArg+4(FP), CX |
| CPUID |
| MOVL AX, eax+8(FP) |
| MOVL BX, ebx+12(FP) |
| MOVL CX, ecx+16(FP) |
| MOVL DX, edx+20(FP) |
| RET |
| |
| // func xgetbv() (eax, edx uint32) |
| TEXT ·xgetbv(SB),NOSPLIT,$0-8 |
| MOVL $0, CX |
| XGETBV |
| MOVL AX, eax+0(FP) |
| MOVL DX, edx+4(FP) |
| RET |
| |
| // func getGOAMD64level() int32 |
| TEXT ·getGOAMD64level(SB),NOSPLIT,$0-4 |
| #ifdef GOAMD64_v4 |
| MOVL $4, ret+0(FP) |
| #else |
| #ifdef GOAMD64_v3 |
| MOVL $3, ret+0(FP) |
| #else |
| #ifdef GOAMD64_v2 |
| MOVL $2, ret+0(FP) |
| #else |
| MOVL $1, ret+0(FP) |
| #endif |
| #endif |
| #endif |
| RET |
