| // Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file. |
| |
| // +build 386,!gccgo |
| |
| // func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32) |
| TEXT ·asmCpuid(SB), 7, $0 |
| XORL CX, CX |
| MOVL op+0(FP), AX |
| CPUID |
| MOVL AX, eax+4(FP) |
| MOVL BX, ebx+8(FP) |
| MOVL CX, ecx+12(FP) |
| MOVL DX, edx+16(FP) |
| RET |
| |
| // func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) |
| TEXT ·asmCpuidex(SB), 7, $0 |
| MOVL op+0(FP), AX |
| MOVL op2+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(index uint32) (eax, edx uint32) |
| TEXT ·asmXgetbv(SB), 7, $0 |
| MOVL index+0(FP), CX |
| BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV |
| MOVL AX, eax+4(FP) |
| MOVL DX, edx+8(FP) |
| RET |
| |
| // func asmRdtscpAsm() (eax, ebx, ecx, edx uint32) |
| TEXT ·asmRdtscpAsm(SB), 7, $0 |
| BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP |
| MOVL AX, eax+0(FP) |
| MOVL BX, ebx+4(FP) |
| MOVL CX, ecx+8(FP) |
| MOVL DX, edx+12(FP) |
| RET |
