b85a6ffb44
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Liming Gao <liming.gao@intel.com>
53 lines
1.6 KiB
NASM
53 lines
1.6 KiB
NASM
;------------------------------------------------------------------------------
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;*
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;* Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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;* This program and the accompanying materials
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;* are licensed and made available under the terms and conditions of the BSD License
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;* which accompanies this distribution. The full text of the license may be found at
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;* http://opensource.org/licenses/bsd-license.php
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;*
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;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;*
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;* CpuAsm.nasm
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;*
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;* Abstract:
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;*
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;------------------------------------------------------------------------------
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; VOID
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; SetCodeSelector (
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; UINT16 Selector
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(SetCodeSelector)
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ASM_PFX(SetCodeSelector):
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sub rsp, 0x10
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lea rax, [setCodeSelectorLongJump]
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mov [rsp], rax
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mov [rsp+4], cx
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jmp dword far [rsp]
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setCodeSelectorLongJump:
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add rsp, 0x10
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ret
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;------------------------------------------------------------------------------
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; VOID
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; SetDataSelectors (
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; UINT16 Selector
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(SetDataSelectors)
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ASM_PFX(SetDataSelectors):
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o16 mov ss, cx
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o16 mov ds, cx
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o16 mov es, cx
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o16 mov fs, cx
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o16 mov gs, cx
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ret
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