mirror of https://github.com/acidanthera/audk.git
52 lines
1.5 KiB
NASM
52 lines
1.5 KiB
NASM
|
TITLE IvtAsm.asm:
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
;*
|
||
|
|
;* Copyright 2008 - 2009, Intel Corporation
|
||
|
|
;* All rights reserved. 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
|
||
|
|
;* http://opensource.org/licenses/bsd-license.php
|
||
|
|
;*
|
||
|
|
;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
;*
|
||
|
|
;* IvtAsm.asm
|
||
|
|
;*
|
||
|
|
;* Abstract:
|
||
|
|
;*
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#include <Base.h>
|
||
|
|
|
||
|
|
#ifdef MDE_CPU_IA32
|
||
|
|
.686
|
||
|
|
.model flat,C
|
||
|
|
#endif
|
||
|
|
.code
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; Generic IDT Vector Handlers for the Host. They are all the same so they
|
||
|
|
; will compress really well.
|
||
|
|
;
|
||
|
|
; By knowing the return address for Vector 00 you can can calculate the
|
||
|
|
; vector number by looking at the call CommonInterruptEntry return address.
|
||
|
|
; (return address - (AsmIdtVector00 + 5))/8 == IDT index
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
EXTRN CommonInterruptEntry:PROC
|
||
|
|
|
||
|
|
ALIGN 8
|
||
|
|
|
||
|
|
PUBLIC AsmIdtVector00
|
||
|
|
|
||
|
|
AsmIdtVector00 LABEL BYTE
|
||
|
|
REPEAT 256
|
||
|
|
call CommonInterruptEntry
|
||
|
|
dw ($ - AsmIdtVector00 - 5) / 8 ; vector number
|
||
|
|
nop
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
END
|
||
|
|
|