mkinitrd-6_3_2/isolinux/cleanup.inc

;; -----------------------------------------------------------------------
;;
;;   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
;;
;;   This program is free software; you can redistribute it and/or modify
;;   it under the terms of the GNU General Public License as published by
;;   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
;;   Boston MA 02111-1307, USA; either version 2 of the License, or
;;   (at your option) any later version; incorporated herein by reference.
;;
;; -----------------------------------------------------------------------

;;
;; cleanup.inc
;;
;; Some final tidying before jumping to a kernel or bootsector
;;

		section .text
;
; cleanup_hardware:
;
;	Shut down anything transient.  *No segment assumptions*.
;	Preserves all registers.
;
cleanup_hardware:
		pushad
;
; Linux wants the floppy motor shut off before starting the kernel,
; at least bootsect.S seems to imply so.  If we don't load the floppy
; driver, this is *definitely* so!
;
		xor ax,ax
		xor dx,dx
		int 13h

%if 0		; This bug report has not been substantiated!
; Vmware crashes if we scroll in the decompressor!  Try to detect vmware
; and if it is Vmware, clear the screen...
		mov eax,'VMXh'
		xor ebx, ebx
		mov ecx, 10		; Get version
		mov dx, 'VX'
		in eax, dx
		cmp ebx, 'VMXh'
		jne .no_vmware

		mov ax,0x0003		; Set mode (clear screen/home cursor)
		int 10h
.no_vmware:
%endif
		popad

		; If we enabled serial port interrupts, clean them up now
		jmp sirq_cleanup
1	niro	1133	;; -----------------------------------------------------------------------
2			;;
3			;; Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
4			;;
5			;; This program is free software; you can redistribute it and/or modify
6			;; it under the terms of the GNU General Public License as published by
7			;; the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8			;; Boston MA 02111-1307, USA; either version 2 of the License, or
9			;; (at your option) any later version; incorporated herein by reference.
10			;;
11			;; -----------------------------------------------------------------------
12
13			;;
14			;; cleanup.inc
15			;;
16			;; Some final tidying before jumping to a kernel or bootsector
17			;;
18
19			section .text
20			;
21			; cleanup_hardware:
22			;
23			; Shut down anything transient. No segment assumptions.
24			; Preserves all registers.
25			;
26			cleanup_hardware:
27			pushad
28			;
29			; Linux wants the floppy motor shut off before starting the kernel,
30			; at least bootsect.S seems to imply so. If we don't load the floppy
31			; driver, this is definitely so!
32			;
33			xor ax,ax
34			xor dx,dx
35			int 13h
36
37			%if 0 ; This bug report has not been substantiated!
38			; Vmware crashes if we scroll in the decompressor! Try to detect vmware
39			; and if it is Vmware, clear the screen...
40			mov eax,'VMXh'
41			xor ebx, ebx
42			mov ecx, 10 ; Get version
43			mov dx, 'VX'
44			in eax, dx
45			cmp ebx, 'VMXh'
46			jne .no_vmware
47
48			mov ax,0x0003 ; Set mode (clear screen/home cursor)
49			int 10h
50			.no_vmware:
51			%endif
52			popad
53
54			; If we enabled serial port interrupts, clean them up now
55			jmp sirq_cleanup