mirror of
https://github.com/theAsmodai/metamod-r.git
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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* In addition, as a special exception, the author gives permission to
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* link the code of this program with the Half-Life Game Engine ("HL
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* Engine") and Modified Game Libraries ("MODs") developed by Valve,
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* L.L.C ("Valve"). You must obey the GNU General Public License in all
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* respects for all of the code used other than the HL Engine and MODs
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* from Valve. If you modify this file, you may extend this exception
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* to your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from your
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* version.
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*
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*/
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#include "sys_shared.h"
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#if defined(__GNUC__)
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#include <cpuid.h>
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#elif _MSC_VER >= 1400 && !defined(ASMLIB_H)
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#include <intrin.h> // __cpuidex
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#endif
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#define SSE3_FLAG (1<<0)
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#define SSSE3_FLAG (1<<9)
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#define SSE4_1_FLAG (1<<19)
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#define SSE4_2_FLAG (1<<20)
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#define POPCNT_FLAG (1<<23)
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#define AVX_FLAG (1<<28)
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#define AVX2_FLAG (1<<5)
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cpuinfo_t cpuinfo;
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void Sys_CheckCpuInstructionsSupport(void)
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{
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unsigned int cpuid_data[4];
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#if defined ASMLIB_H
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cpuid_ex((int *)cpuid_data, 1, 0);
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#elif defined(__GNUC__)
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__get_cpuid(0x1, &cpuid_data[0], &cpuid_data[1], &cpuid_data[2], &cpuid_data[3]);
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#else
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__cpuidex((int *)cpuid_data, 1, 0);
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#endif
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cpuinfo.sse3 = (cpuid_data[2] & SSE3_FLAG) ? 1 : 0; // ecx
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cpuinfo.ssse3 = (cpuid_data[2] & SSSE3_FLAG) ? 1 : 0;
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cpuinfo.sse4_1 = (cpuid_data[2] & SSE4_1_FLAG) ? 1 : 0;
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cpuinfo.sse4_2 = (cpuid_data[2] & SSE4_2_FLAG) ? 1 : 0;
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cpuinfo.popcnt = (cpuid_data[2] & POPCNT_FLAG) ? 1 : 0;
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cpuinfo.avx = (cpuid_data[2] & AVX_FLAG) ? 1 : 0;
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#if defined ASMLIB_H
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cpuid_ex((int *)cpuid_data, 7, 0);
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#elif defined(__GNUC__)
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__get_cpuid(0x7, &cpuid_data[0], &cpuid_data[1], &cpuid_data[2], &cpuid_data[3]);
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#else
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__cpuidex((int *)cpuid_data, 7, 0);
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#endif
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cpuinfo.avx2 = (cpuid_data[1] & AVX2_FLAG) ? 1 : 0; // ebx
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}
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