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52 lines
1.5 KiB
NASM
52 lines
1.5 KiB
NASM
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TITLE IvtAsm.asm:
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;------------------------------------------------------------------------------
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;*
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;* Copyright (c) 2008 - 2009, 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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;* IvtAsm.asm
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;*
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;* Abstract:
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;*
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;------------------------------------------------------------------------------
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#include <Base.h>
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#ifdef MDE_CPU_IA32
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.686
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.model flat,C
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#endif
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.code
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;------------------------------------------------------------------------------
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; Generic IDT Vector Handlers for the Host. They are all the same so they
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; will compress really well.
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;
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; By knowing the return address for Vector 00 you can can calculate the
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; vector number by looking at the call CommonInterruptEntry return address.
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; (return address - (AsmIdtVector00 + 5))/8 == IDT index
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;
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;------------------------------------------------------------------------------
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EXTRN CommonInterruptEntry:PROC
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ALIGN 8
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PUBLIC AsmIdtVector00
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AsmIdtVector00 LABEL BYTE
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REPEAT 256
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call CommonInterruptEntry
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dw ($ - AsmIdtVector00 - 5) / 8 ; vector number
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nop
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ENDM
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END
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