mirror of https://github.com/RPCS3/rpcs3.git
55 lines
1.0 KiB
C++
55 lines
1.0 KiB
C++
#pragma once
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#include "types.h"
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#include <string>
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namespace utils
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{
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inline std::array<u32, 4> get_cpuid(u32 func, u32 subfunc)
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{
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int regs[4];
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#ifdef _MSC_VER
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__cpuidex(regs, func, subfunc);
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#else
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__asm__ volatile("cpuid" : "=a" (regs[0]), "=b" (regs[1]), "=c" (regs[2]), "=d" (regs[3]) : "a" (func), "c" (subfunc));
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#endif
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return {0u+regs[0], 0u+regs[1], 0u+regs[2], 0u+regs[3]};
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}
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inline bool has_ssse3()
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{
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return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x200;
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}
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inline bool has_avx()
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{
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return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x10000000;
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}
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inline bool has_rtm()
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{
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// Check RTM and MPX extensions in order to filter out TSX on Haswell CPUs
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return get_cpuid(0, 0)[0] >= 0x7 && (get_cpuid(7, 0)[1] & 0x4800) == 0x4800;
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}
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inline bool transaction_enter()
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{
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while (true)
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{
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const auto status = _xbegin();
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if (status == _XBEGIN_STARTED)
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{
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return true;
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}
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if (!(status & _XABORT_RETRY))
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{
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return false;
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}
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}
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}
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std::string get_system_info();
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}
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