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/** @file
Null instance of CPU Library for IA32/X64 specific services.
Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/CpuLib.h>
/**
Initializes floating point units for requirement of UEFI specification.
This function initializes floating-point control word to 0x027F (all exceptions
masked,double-precision, round-to-nearest) and multimedia-extensions control word
(if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
for masked underflow).
**/
VOID
EFIAPI
InitializeFloatingPointUnits (
VOID
)
{
}
/**
Determine if the standard CPU signature is "AuthenticAMD".
@retval TRUE The CPU signature matches.
@retval FALSE The CPU signature does not match.
**/
BOOLEAN
EFIAPI
StandardSignatureIsAuthenticAMD (
VOID
)
{
return FALSE;
}
/**
Return the 32bit CPU family and model value.
@return CPUID[01h].EAX with Processor Type and Stepping ID cleared.
**/
UINT32
EFIAPI
GetCpuFamilyModel (
VOID
)
{
return 0;
}
/**
Return the CPU stepping ID.
@return CPU stepping ID value in CPUID[01h].EAX.
**/
UINT8
EFIAPI
GetCpuSteppingId (
VOID
)
{
return 0;
}
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