diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index d87975d542..0cc7c9310c 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -334,6 +334,7 @@ Ia32/CpuPause.asm | INTEL Ia32/CpuIdEx.nasm| INTEL Ia32/CpuIdEx.asm | INTEL + Ia32/CpuId.nasm| INTEL Ia32/CpuId.asm | INTEL Ia32/CpuBreakpoint.asm | INTEL Ia32/ARShiftU64.asm | INTEL @@ -362,6 +363,7 @@ Ia32/Monitor.S | GCC Ia32/CpuIdEx.nasm| GCC Ia32/CpuIdEx.S | GCC + Ia32/CpuId.nasm| GCC Ia32/CpuId.S | GCC Ia32/LongJump.nasm| GCC Ia32/LongJump.S | GCC diff --git a/MdePkg/Library/BaseLib/Ia32/CpuId.nasm b/MdePkg/Library/BaseLib/Ia32/CpuId.nasm new file mode 100644 index 0000000000..d8f0ed048b --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/CpuId.nasm @@ -0,0 +1,65 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, Intel Corporation. All rights reserved.
+; This program and the accompanying materials +; are licensed and made available under the terms and conditions of the BSD License +; which accompanies this distribution. The full text of the license may be found at +; http://opensource.org/licenses/bsd-license.php. +; +; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +; +; Module Name: +; +; CpuId.Asm +; +; Abstract: +; +; AsmCpuid function +; +; Notes: +; +;------------------------------------------------------------------------------ + + SECTION .text + +;------------------------------------------------------------------------------ +; VOID +; EFIAPI +; AsmCpuid ( +; IN UINT32 RegisterInEax, +; OUT UINT32 *RegisterOutEax OPTIONAL, +; OUT UINT32 *RegisterOutEbx OPTIONAL, +; OUT UINT32 *RegisterOutEcx OPTIONAL, +; OUT UINT32 *RegisterOutEdx OPTIONAL +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmCpuid) +ASM_PFX(AsmCpuid): + push ebx + push ebp + mov ebp, esp + mov eax, [ebp + 12] + cpuid + push ecx + mov ecx, [ebp + 16] + jecxz .0 + mov [ecx], eax +.0: + mov ecx, [ebp + 20] + jecxz .1 + mov [ecx], ebx +.1: + mov ecx, [ebp + 24] + jecxz .2 + pop DWORD [ecx] +.2: + mov ecx, [ebp + 28] + jecxz .3 + mov [ecx], edx +.3: + mov eax, [ebp + 12] + leave + pop ebx + ret +