diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/CpuIdEx.S')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/CpuIdEx.S | 124 |
1 files changed, 62 insertions, 62 deletions
diff --git a/MdePkg/Library/BaseLib/X64/CpuIdEx.S b/MdePkg/Library/BaseLib/X64/CpuIdEx.S index 32abf114db..8dd70b2539 100644 --- a/MdePkg/Library/BaseLib/X64/CpuIdEx.S +++ b/MdePkg/Library/BaseLib/X64/CpuIdEx.S @@ -1,62 +1,62 @@ -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006 - 2008, 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: -# -# CpuIdEx.S -# -# Abstract: -# -# AsmCpuidEx function -# -# Notes: -# -#------------------------------------------------------------------------------ - -#------------------------------------------------------------------------------ -# UINT32 -# EFIAPI -# AsmCpuidEx ( -# IN UINT32 RegisterInEax, -# IN UINT32 RegisterInEcx, -# OUT UINT32 *RegisterOutEax OPTIONAL, -# OUT UINT32 *RegisterOutEbx OPTIONAL, -# OUT UINT32 *RegisterOutEcx OPTIONAL, -# OUT UINT32 *RegisterOutEdx OPTIONAL -# ) -#------------------------------------------------------------------------------ -.global ASM_PFX(AsmCpuidEx) -ASM_PFX(AsmCpuidEx): - push %rbx - movl %ecx,%eax - movl %edx,%ecx - push %rax # save Index on stack - cpuid - mov 0x38(%rsp), %r10 - test %r10, %r10 - jz L1 - mov %ecx,(%r10) -L1: - mov %r8, %rcx - jrcxz L2 - movl %eax,(%rcx) -L2: - mov %r9, %rcx - jrcxz L3 - mov %ebx, (%rcx) -L3: - mov 0x40(%rsp), %rcx - jrcxz L4 - mov %edx, (%rcx) -L4: - pop %rax # restore Index to rax as return value - pop %rbx - ret +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2008, 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:
+#
+# CpuIdEx.S
+#
+# Abstract:
+#
+# AsmCpuidEx function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+#------------------------------------------------------------------------------
+# UINT32
+# EFIAPI
+# AsmCpuidEx (
+# IN UINT32 RegisterInEax,
+# IN UINT32 RegisterInEcx,
+# OUT UINT32 *RegisterOutEax OPTIONAL,
+# OUT UINT32 *RegisterOutEbx OPTIONAL,
+# OUT UINT32 *RegisterOutEcx OPTIONAL,
+# OUT UINT32 *RegisterOutEdx OPTIONAL
+# )
+#------------------------------------------------------------------------------
+.global ASM_PFX(AsmCpuidEx)
+ASM_PFX(AsmCpuidEx):
+ push %rbx
+ movl %ecx,%eax
+ movl %edx,%ecx
+ push %rax # save Index on stack
+ cpuid
+ mov 0x38(%rsp), %r10
+ test %r10, %r10
+ jz L1
+ mov %ecx,(%r10)
+L1:
+ mov %r8, %rcx
+ jrcxz L2
+ movl %eax,(%rcx)
+L2:
+ mov %r9, %rcx
+ jrcxz L3
+ mov %ebx, (%rcx)
+L3:
+ mov 0x40(%rsp), %rcx
+ jrcxz L4
+ mov %edx, (%rcx)
+L4:
+ pop %rax # restore Index to rax as return value
+ pop %rbx
+ ret
|