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(HardwareInfo) Added Cpuid to the public interface

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Also improved the code


Former-commit-id: 07025657e01ff21a3581204ce74e180c3a5e7737
This commit is contained in:
Lynix
2015-02-24 17:28:02 +01:00
parent 60b6b2f4de
commit a67d66bbd8
4 changed files with 69 additions and 42 deletions
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9
src/Nazara/Core/Win32/HardwareInfoImpl.cpp
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@@ -12,17 +12,18 @@
#include <Nazara/Core/Debug.hpp>
void NzHardwareInfoImpl::Cpuid(nzUInt32 code, nzUInt32 result[4])
void NzHardwareInfoImpl::Cpuid(nzUInt32 functionId, nzUInt32 subFunctionId, nzUInt32 registers[4])
{
#if defined(NAZARA_COMPILER_MSVC)
static_assert(sizeof(nzUInt32) == sizeof(int), "Assertion failed");
__cpuid(reinterpret_cast<int*>(result), static_cast<int>(code)); // Visual propose une fonction intrinsèque pour le cpuid
// Visual propose une fonction intrinsèque pour le cpuid
__cpuidex(reinterpret_cast<int*>(registers), static_cast<int>(functionId), static_cast<int>(subFunctionId));
#elif defined(NAZARA_COMPILER_CLANG) || defined(NAZARA_COMPILER_GCC) || defined(NAZARA_COMPILER_INTEL)
// Source: http://stackoverflow.com/questions/1666093/cpuid-implementations-in-c
asm volatile ("cpuid" // Besoin d'être volatile ?
: "=a" (result[0]), "=b" (result[1]), "=c" (result[2]), "=d" (result[3]) // output
: "a" (code), "c" (0)); // input
: "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3]) // output
: "a" (functionId), "c" (subFunctionId)); // input
#else
NazaraInternalError("Cpuid has been called although it is not supported");
#endif