mkinitrd-magellan/isolinux/cmdline.inc

;; -----------------------------------------------------------------------
;;
;;   Copyright 2003-2009 H. Peter Anvin - All Rights Reserved
;;   Copyright 2009 Intel Corporation; author: H. Peter Anvin
;;
;;   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.
;;
;; -----------------------------------------------------------------------

;;
;; cmdline.inc
;;
;; Common routine to assemble [null-terminated] command line into
;; real_mode_seg:cmd_line_here.
;; Not used by plain kernel due to BOOT_IMAGE= etc.
;;

;
; Assumes DS == CS
;
make_plain_cmdline:
		push es
		; ui.inc has already copied any APPEND options
		mov ax,real_mode_seg
		mov es,ax

		mov di,[CmdLinePtr]
		call do_ip_append

		mov si,[CmdOptPtr]

		call strcpy

		dec di
		mov [CmdLinePtr],di

		pop es
		ret

;
; Actual IPAppend strings...
;
%if IS_PXELINUX
		section .data
		alignz 2
IPAppends	dw IPOption
		dw BOOTIFStr
numIPAppends	equ ($-IPAppends)/2
%else
IPAppends	equ 0
numIPAppends	equ 0
%endif

;
; Handle "ipappend" strings, if applicable
;
; Assumes DS == CS; pushes output to ES:DI
;
		section .text

do_ip_append:
%ifndef DEPEND
 %if numIPAppends > 0
		push cx
		push bx
		push si

		mov bx,IPAppends
		mov cx,[IPAppend]
		and cx,(1 << numIPAppends)-1
.loop:
		jcxz .done
		mov si,[bx]
		inc bx
		inc bx
		test cl,1
		jz .not_this

		call strcpy
		mov byte [es:di-1],' '	; Replace final null with space
.not_this:
		shr cx,1
		jmp .loop
.done:
		pop si
		pop bx
		pop cx
 %endif
%endif
		ret
1	niro	532	;; -----------------------------------------------------------------------
2			;;
3	niro	1133	;; Copyright 2003-2009 H. Peter Anvin - All Rights Reserved
4			;; Copyright 2009 Intel Corporation; author: H. Peter Anvin
5			;;
6	niro	532	;; This program is free software; you can redistribute it and/or modify
7			;; it under the terms of the GNU General Public License as published by
8			;; the Free Software Foundation, Inc., 53 Temple Place Ste 330,
9			;; Boston MA 02111-1307, USA; either version 2 of the License, or
10			;; (at your option) any later version; incorporated herein by reference.
11			;;
12			;; -----------------------------------------------------------------------
13
14			;;
15			;; cmdline.inc
16			;;
17			;; Common routine to assemble [null-terminated] command line into
18			;; real_mode_seg:cmd_line_here.
19			;; Not used by plain kernel due to BOOT_IMAGE= etc.
20			;;
21
22			;
23			; Assumes DS == CS
24	niro	1133	;
25	niro	532	make_plain_cmdline:
26			push es
27			; ui.inc has already copied any APPEND options
28			mov ax,real_mode_seg
29			mov es,ax
30
31	niro	1133	mov di,[CmdLinePtr]
32			call do_ip_append
33
34	niro	532	mov si,[CmdOptPtr]
35	niro	1133
36	niro	532	call strcpy
37
38			dec di
39			mov [CmdLinePtr],di
40
41			pop es
42			ret
43
44	niro	1133	;
45			; Actual IPAppend strings...
46			;
47			%if IS_PXELINUX
48			section .data
49			alignz 2
50			IPAppends dw IPOption
51			dw BOOTIFStr
52			numIPAppends equ ($-IPAppends)/2
53			%else
54			IPAppends equ 0
55			numIPAppends equ 0
56			%endif
57	niro	532
58	niro	1133	;
59			; Handle "ipappend" strings, if applicable
60			;
61			; Assumes DS == CS; pushes output to ES:DI
62			;
63			section .text
64
65			do_ip_append:
66			%ifndef DEPEND
67			%if numIPAppends > 0
68			push cx
69			push bx
70			push si
71
72			mov bx,IPAppends
73			mov cx,[IPAppend]
74			and cx,(1 << numIPAppends)-1
75			.loop:
76			jcxz .done
77			mov si,[bx]
78			inc bx
79			inc bx
80			test cl,1
81			jz .not_this
82
83			call strcpy
84			mov byte [es:di-1],' ' ; Replace final null with space
85			.not_this:
86			shr cx,1
87			jmp .loop
88			.done:
89			pop si
90			pop bx
91			pop cx
92			%endif
93			%endif
94			ret