IdtVectorAsm.asm revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
;/** @file
;
; IDT vector entry.
;
; Copyright (c) 2007 - 2008, 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
;
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
;
;**/
.686p
.model flat,C
.code
;
;------------------------------------------------------------------------------
; Generic IDT Vector Handlers for the Host.
;
;------------------------------------------------------------------------------
ALIGN 8
PUBLIC AsmGetVectorTemplatInfo
PUBLIC AsmVectorFixup
PUBLIC AsmVectorFixup
@VectorTemplateBase:
push eax
db 6ah ; push #VectorNumber
@VectorNum:
db 0
mov eax, CommonInterruptEntry
jmp eax
@VectorTemplateEnd:
AsmGetVectorTemplatInfo PROC
mov ecx, [esp + 4]
mov [ecx], @VectorTemplateBase
mov eax, (@VectorTemplateEnd - @VectorTemplateBase)
ret
AsmGetVectorTemplatInfo ENDP
AsmVectorFixup PROC
mov eax, dword ptr [esp + 8]
mov ecx, [esp + 4]
mov [ecx + (@VectorNum - @VectorTemplateBase)], al
ret
AsmVectorFixup ENDP
;---------------------------------------;
; CommonInterruptEntry ;
;---------------------------------------;
; The follow algorithm is used for the common interrupt routine.
;
; +---------------------+ <-- 16-byte aligned ensured by processor
; + Old SS +
; +---------------------+
; + Old RSP +
; +---------------------+
; + RFlags +
; +---------------------+
; + CS +
; +---------------------+
; + RIP +
; +---------------------+
; + Error Code +
; +---------------------+
; + Vector Number +
; +---------------------+
CommonInterruptEntry PROC
cli
jmp $
CommonInterruptEntry ENDP
END