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	;; -----------------------------------------------------------------------
2	;;
3	;; Copyright 1994-2008 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	;; 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