+++ /dev/null
-#------------------------------------------------------------------------------\r
-#\r
-# Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
-# This program and the accompanying materials\r
-# are licensed and made available under the terms and conditions of the BSD License\r
-# which accompanies this distribution. The full text of the license may be found at\r
-# http://opensource.org/licenses/bsd-license.php\r
-#\r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-#\r
-# Module Name:\r
-#\r
-# CpuId.S\r
-#\r
-# Abstract:\r
-#\r
-# AsmCpuid function\r
-#\r
-# Notes:\r
-#\r
-#------------------------------------------------------------------------------\r
-\r
-#include <EdkIIGlueBase.h>\r
-\r
-#------------------------------------------------------------------------------\r
-# VOID\r
-# EFIAPI\r
-# AsmCpuid (\r
-# IN UINT32 RegisterInEax,\r
-# OUT UINT32 *RegisterOutEax OPTIONAL,\r
-# OUT UINT32 *RegisterOutEbx OPTIONAL,\r
-# OUT UINT32 *RegisterOutEcx OPTIONAL,\r
-# OUT UINT32 *RegisterOutEdx OPTIONAL\r
-# )\r
-#------------------------------------------------------------------------------\r
-.globl ASM_PFX(AsmCpuid)\r
-ASM_PFX(AsmCpuid):\r
- push %rbx\r
- mov %ecx, %eax\r
- push %rax # save Index on stack\r
- push %rdx\r
- cpuid\r
- test %r9, %r9\r
- jz L1\r
- mov %ecx, (%r9)\r
-L1:\r
- pop %rcx\r
- jrcxz L2\r
- mov %eax, (%rcx)\r
-L2:\r
- mov %r8, %rcx\r
- jrcxz L3\r
- mov %ebx, (%rcx)\r
-L3:\r
- mov 0x38(%rsp), %rcx\r
- jrcxz L4\r
- mov %edx, (%rcx)\r
-L4:\r
- pop %rax # restore Index to rax as return value\r
- pop %rbx\r
- ret\r