一個小小工程師的心情抒發天地

// Analysis_CPU.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <vector>
#include <bitset>
#include <array>
#include <string>
#include <intrin.h>


/*
MSDN:
	https://docs.microsoft.com/en-us/cpp/intrinsics/cpuid-cpuidex?redirectedfrom=MSDN&view=msvc-160#Example
*/
using namespace std;

int main()
{
	int nIds_;
	arraycpui;
	std::vector> data_;
	data_.empty();
	std::string vendor_;

	bool isIntel_;
	bool isAMD_;

	// Calling __cpuid with 0x0 as the function_id argument
	// gets the number of the highest valid function ID.
	__cpuid(cpui.data(), 0);
	nIds_ = cpui[0];

	for (int i = 0; i <= nIds_; ++i)
	{
		__cpuidex(cpui.data(), i, 0);
		data_.push_back(cpui);
	}

	// Capture vendor string
	char vendor[0x20];
	int  nExIds;
	memset(vendor, 0, sizeof(vendor));
	*reinterpret_cast(vendor) = data_[0][1];
	*reinterpret_cast(vendor + 4) = data_[0][3];
	*reinterpret_cast(vendor + 8) = data_[0][2];
	vendor_ = vendor;
	if (vendor_ == "GenuineIntel")
	{
		isIntel_ = true;
	}
	else
	if (vendor_ == "AuthenticAMD") 
	{
		isAMD_ = true;
	}

	// Calling __cpuid with 0x80000000 as the function_id argument
	// gets the number of the highest valid extended ID.
	__cpuid(cpui.data(), 0x80000000);
	nExIds = cpui[0];
	char processor[0x40];
	std::vector> procData;
	procData.empty();
	memset(processor, 0, sizeof(processor));

	for (int i = 0x80000000; i <= nExIds; ++i)
	{
		__cpuidex(cpui.data(), i, 0);
		procData.push_back(cpui);
	}
	// Interpret CPU brand string if reported
	if (nExIds >= 0x80000004)
	{
		memcpy(processor, procData[2].data(), sizeof(cpui));
		memcpy(processor + 16, procData[3].data(), sizeof(cpui));
		memcpy(processor + 32, procData[4].data(), sizeof(cpui));
	}
	printf("Vendor: %s\n", vendor);
	printf("Processor: %s\n", processor);
}

}