mkinitrd-magellan/isolinux/writehex.inc

;; -----------------------------------------------------------------------
;;
;;   Copyright 1994-2008 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.
;;
;; -----------------------------------------------------------------------

;;
;; writehex.inc
;;
;; Write hexadecimal numbers to the console
;;

		section .text
;
; writehex[248]: Write a hex number in (AL, AX, EAX) to the console
;
writehex2:
		pushfd
		pushad
		rol eax,24
		mov cx,2
		jmp short writehex_common
writehex4:
		pushfd
		pushad
		rol eax,16
		mov cx,4
		jmp short writehex_common
writehex8:
		pushfd
		pushad
		mov cx,8
writehex_common:
.loop:		rol eax,4
		push eax
		and al,0Fh
		cmp al,10
		jae .high
.low:		add al,'0'
		jmp short .ischar
.high:		add al,'A'-10
.ischar:	call writechr
		pop eax
		loop .loop
		popad
		popfd
		ret
1	niro	532	;; -----------------------------------------------------------------------
2			;;
3	niro	1133	;; Copyright 1994-2008 H. Peter Anvin - All Rights Reserved
4			;;
5	niro	532	;; 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			;; writehex.inc
15			;;
16			;; Write hexadecimal numbers to the console
17			;;
18
19			section .text
20			;
21			; writehex[248]: Write a hex number in (AL, AX, EAX) to the console
22			;
23			writehex2:
24			pushfd
25			pushad
26			rol eax,24
27			mov cx,2
28			jmp short writehex_common
29			writehex4:
30			pushfd
31			pushad
32			rol eax,16
33			mov cx,4
34			jmp short writehex_common
35			writehex8:
36			pushfd
37			pushad
38			mov cx,8
39			writehex_common:
40			.loop: rol eax,4
41			push eax
42			and al,0Fh
43			cmp al,10
44			jae .high
45			.low: add al,'0'
46			jmp short .ischar
47			.high: add al,'A'-10
48			.ischar: call writechr
49			pop eax
50			loop .loop
51			popad
52			popfd
53			ret