mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-17 15:18:06 +01:00
71 lines
2.0 KiB
NASM
71 lines
2.0 KiB
NASM
;; @file
|
|
; Interrupt Redirection Template
|
|
;
|
|
; Copyright (c) 2006, 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
|
|
; 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.
|
|
;
|
|
;;
|
|
|
|
text SEGMENT
|
|
|
|
;----------------------------------------------------------------------------
|
|
; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F
|
|
;
|
|
; Input: None
|
|
;
|
|
; Output: None
|
|
;
|
|
; Prototype: VOID
|
|
; InterruptRedirectionTemplate (
|
|
; VOID
|
|
; );
|
|
;
|
|
; Saves: None
|
|
;
|
|
; Modified: None
|
|
;
|
|
; Description: Contains the code that is copied into low memory (below 640K).
|
|
; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.
|
|
; This template must be copied into low memory, and the IDT entries
|
|
; 0x68-0x6F must be point to the low memory copy of this code. Each
|
|
; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily
|
|
; computed.
|
|
;
|
|
;----------------------------------------------------------------------------
|
|
|
|
InterruptRedirectionTemplate PROC
|
|
int 08h
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 09h
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0ah
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0bh
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0ch
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0dh
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0eh
|
|
DB 0cfh ; IRET
|
|
nop
|
|
int 0fh
|
|
DB 0cfh ; IRET
|
|
nop
|
|
InterruptRedirectionTemplate ENDP
|
|
|
|
END |