The CPUID instructions. More...

#include <basics.h>
#include <graphics.h>

Include dependency graph for cpuid2.h:

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Functions
static int	cpuid_string (int code, int where[4])
	Executes the CPUID instruction with the given code and stores the results.
cstring	cpu_string ()
	Returns a string representing the CPU type.
void	cpuid (int32 reg, int32 eax, int32 ebx, int32 ecx, int32 edx)
	Executes the CPUID instruction and retrieves values of the specified registers.
cstring	get_cpu_vendor ()
	Retrieve the CPU vendor string.
cstring	get_cpu_name ()
	Retrieve the CPU name.
void	print_cpu_info ()
	Print CPU information, including the vendor and CPU string.
void	print_L1_cache_info ()
	Retrieve and print L1 cache information.
void	print_L2_cache_info ()
	Retrieve and print L2 cache information.
void	print_L3_cache_info ()
	Retrieve and print L3 cache information.

Detailed Description

The CPUID instructions.

Author: Pradosh (prado.nosp@m.shga.nosp@m.me@gm.nosp@m.ail..nosp@m.com)

Version: 0.1

Date: 2023-11-10

Copyright: Copyright (c) Pradosh 2023

Definition in file cpuid2.h.

Function Documentation

◆ cpu_string()

cstring cpu_string ( )

Returns a string representing the CPU type.

This function queries the CPU type using the cpuid instruction and returns a string representation of the CPU type.

Returns: A constant string representing the CPU type.

◆ cpuid()

void cpuid	(	int32	reg,
		int32 *	eax,
		int32 *	ebx,
		int32 *	ecx,
		int32 *	edx )

inline

Executes the CPUID instruction and retrieves values of the specified registers.

This function executes the CPUID instruction with the given register and stores the values in the provided pointers for EAX, EBX, ECX, and EDX registers.

Parameters

reg	The register to query with CPUID.
eax	Pointer to store the value of EAX register.
ebx	Pointer to store the value of EBX register.
ecx	Pointer to store the value of ECX register.
edx	Pointer to store the value of EDX register.

◆ cpuid_string()

int cpuid_string	(	int	code,
		int	where[4] )

inlinestatic

Executes the CPUID instruction with the given code and stores the results.

This function executes the CPUID instruction with the specified code and stores the results in the provided array where.

Parameters

code	The CPUID code to query.
where	An integer array to store the result, with at least 4 elements.

Returns: The value of the EAX register after executing CPUID.

◆ get_cpu_name()

cstring get_cpu_name ( )

Retrieve the CPU name.

Returns: The CPU name.

◆ get_cpu_vendor()

cstring get_cpu_vendor ( )

Retrieve the CPU vendor string.

Returns: The CPU vendor string.