mirror of https://github.com/acidanthera/audk.git
49 lines
1.4 KiB
NASM
49 lines
1.4 KiB
NASM
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006, Intel Corporation
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; All rights reserved. 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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; Module Name:
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;
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; WriteIdt.Asm
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;
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; Abstract:
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;
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; SetIdtBase function
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;
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; Notes:
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;
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;------------------------------------------------------------------------------
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.586p
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.model flat,C
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.mmx
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.code
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;------------------------------------------------------------------------------
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; void
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; SetIdtBase (
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; UINT32 IdtBase,
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; UINT16 IdtLimit
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; )
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;
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; Abstract: Set IDTR with the given physical address
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;
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SetIdtBase PROC C PUBLIC IdtBase:DWORD, IdtLimit:WORD
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LOCAL IdtrBuf:FWORD
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mov eax, IdtBase
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mov cx, IdtLimit
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mov DWORD PTR IdtrBuf + 2, eax ; write IDT base address
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mov WORD PTR IdtrBuf, cx ; write ITD limit
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lidt FWORD PTR IdtrBuf
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ret
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SetIdtBase ENDP
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END
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