audk/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/ReadIdt.asm

61 lines
1.5 KiB
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2006, 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.
;
; Module Name:
;
; ReadIdtBase.Asm
;
; Abstract:
;
; ReadIdtBase function
;
; Notes:
;
;------------------------------------------------------------------------------
.586
.model flat,C
.mmx
.code
;------------------------------------------------------------------------------
; UINTN
; ReadIdtBase (
; void
; )
;
; Abstract: Returns physical address of IDTR
;
ReadIdtBase PROC C PUBLIC
LOCAL IdtrBuf:FWORD
sidt IdtrBuf
mov eax, DWORD PTR IdtrBuf + 2
ret
ReadIdtBase ENDP
;------------------------------------------------------------------------------
; UINT16
; ReadIdtLimit (
; void
; )
;
; Abstract: Returns Limit of IDTR
;
ReadIdtLimit PROC C PUBLIC
LOCAL IdtrBuf:FWORD
sidt IdtrBuf
mov ax, WORD PTR IdtrBuf
ret
ReadIdtLimit ENDP
END