github.com/iDigitalFlame/xmt@v0.5.4/device/cpu.s (about) 1 //go:build amd64 || 386 2 // +build amd64 386 3 4 // Copyright (C) 2020 - 2023 iDigitalFlame 5 // 6 // This program is free software: you can redistribute it and/or modify 7 // it under the terms of the GNU General Public License as published by 8 // the Free Software Foundation, either version 3 of the License, or 9 // any later version. 10 // 11 // This program is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 // 16 // You should have received a copy of the GNU General Public License 17 // along with this program. If not, see <https://www.gnu.org/licenses/>. 18 // 19 20 // Golang way to call "CPUID". 21 // Cut section from "internal/cpu" as we can't directly link it in go1.10.8 22 23 #include "textflag.h" 24 25 // func cpuid(arg1, arg2 uint32) (eax, ebx, ecx, edx uint32) 26 TEXT ·cpuid(SB), NOSPLIT, $0-24 27 MOVL arg1+0(FP), AX 28 MOVL arg2+4(FP), CX 29 CPUID 30 MOVL AX, eax+8(FP) 31 MOVL BX, ebx+12(FP) 32 MOVL CX, ecx+16(FP) 33 MOVL DX, edx+20(FP) 34 RET