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| author | Liming Gao <liming.gao@intel.com> | 2016-06-14 15:43:44 +0800 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2016-06-28 09:52:06 +0800 |
| commit | b85a6ffb441129889c301459207a729d562ab8e8 (patch) | |
| tree | c11712b2c5a93dc46aec67bdb5a624a8a7d90481 /UefiCpuPkg/CpuDxe/X64 | |
| parent | 762e073a93c9a9fafda0a2527a3a00f60eeff05d (diff) | |
| download | edk2-b85a6ffb441129889c301459207a729d562ab8e8.zip edk2-b85a6ffb441129889c301459207a729d562ab8e8.tar.gz edk2-b85a6ffb441129889c301459207a729d562ab8e8.tar.bz2 | |
UefiCpuPkg CpuDxe: Add nasm source file in CpuDxe.inf
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'UefiCpuPkg/CpuDxe/X64')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/CpuAsm.nasm | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxe/X64/CpuAsm.nasm b/UefiCpuPkg/CpuDxe/X64/CpuAsm.nasm new file mode 100644 index 0000000..77ecfb3 --- /dev/null +++ b/UefiCpuPkg/CpuDxe/X64/CpuAsm.nasm @@ -0,0 +1,52 @@ +;------------------------------------------------------------------------------
+;*
+;* Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+;* 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.
+;*
+;* CpuAsm.nasm
+;*
+;* Abstract:
+;*
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; SetCodeSelector (
+; UINT16 Selector
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(SetCodeSelector)
+ASM_PFX(SetCodeSelector):
+ sub rsp, 0x10
+ lea rax, [setCodeSelectorLongJump]
+ mov [rsp], rax
+ mov [rsp+4], cx
+ jmp dword far [rsp]
+setCodeSelectorLongJump:
+ add rsp, 0x10
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; SetDataSelectors (
+; UINT16 Selector
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(SetDataSelectors)
+ASM_PFX(SetDataSelectors):
+o16 mov ss, cx
+o16 mov ds, cx
+o16 mov es, cx
+o16 mov fs, cx
+o16 mov gs, cx
+ ret
+
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