96226baa28
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4998 6f19259b-4bc3-4df7-8a09-765794883524
88 lines
2.2 KiB
NASM
88 lines
2.2 KiB
NASM
;/** @file
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; IDT vector entry.
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;
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; Copyright (c) 2007 - 2008, Intel Corporation. <BR>
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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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;**/
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.686p
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.model flat,C
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.code
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;
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;------------------------------------------------------------------------------
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; Generic IDT Vector Handlers for the Host.
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;
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;------------------------------------------------------------------------------
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ALIGN 8
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PUBLIC AsmGetVectorTemplatInfo
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PUBLIC AsmVectorFixup
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PUBLIC AsmVectorFixup
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@VectorTemplateBase:
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push eax
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db 6ah ; push #VectorNumber
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@VectorNum:
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db 0
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mov eax, CommonInterruptEntry
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jmp eax
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@VectorTemplateEnd:
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AsmGetVectorTemplatInfo PROC
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mov ecx, [esp + 4]
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mov [ecx], @VectorTemplateBase
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mov eax, (@VectorTemplateEnd - @VectorTemplateBase)
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ret
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AsmGetVectorTemplatInfo ENDP
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AsmVectorFixup PROC
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mov eax, dword ptr [esp + 8]
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mov ecx, [esp + 4]
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mov [ecx + (@VectorNum - @VectorTemplateBase)], al
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ret
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AsmVectorFixup ENDP
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;---------------------------------------;
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; CommonInterruptEntry ;
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;---------------------------------------;
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; The follow algorithm is used for the common interrupt routine.
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;
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; +---------------------+ <-- 16-byte aligned ensured by processor
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; + Old SS +
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; +---------------------+
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; + Old RSP +
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; +---------------------+
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; + RFlags +
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; +---------------------+
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; + CS +
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; +---------------------+
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; + RIP +
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; +---------------------+
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; + Error Code +
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; +---------------------+
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; + Vector Number +
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; +---------------------+
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CommonInterruptEntry PROC
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cli
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jmp $
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CommonInterruptEntry ENDP
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END
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