WebSVN – Kolibri OS – Diff – /kernel/trunk/boot/rdload.inc


$Revision: 431 $
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License    ;;
;;                                                              ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
; READ RAMDISK IMAGE FROM HD
 
        cmp   [boot_dev],1
        jne   no_sys_on_hd
 
        test  [DRIVE_DATA+1],byte 0x40
        jz    position_2
        mov   [hdbase],0x1f0
        mov   [hdid],0x0
        mov   [hdpos],1
        mov   [fat32part],0
  position_1_1:
        inc   [fat32part]
        call  search_and_read_image
        cmp   [image_retrieved],1
        je    yes_sys_on_hd
        movzx eax,byte [DRIVE_DATA+2]
        cmp   [fat32part],eax
        jle     position_1_1
  position_2:
        test  [DRIVE_DATA+1],byte 0x10
        jz    position_3
        mov   [hdbase],0x1f0
        mov   [hdid],0x10
        mov   [hdpos],2
        mov   [fat32part],0
  position_2_1:
        inc   [fat32part]
        call  search_and_read_image
        cmp   [image_retrieved],1
        je    yes_sys_on_hd
        movzx eax,byte [DRIVE_DATA+3]
        cmp   eax,[fat32part]
        jle     position_2_1
  position_3:
        test  [DRIVE_DATA+1],byte 0x4
        jz    position_4
        mov   [hdbase],0x170
        mov   [hdid],0x0
        mov   [hdpos],3
        mov   [fat32part],0
  position_3_1:
        inc   [fat32part]
        call  search_and_read_image
        cmp   [image_retrieved],1
        je    yes_sys_on_hd
        movzx eax,byte [DRIVE_DATA+4]
        cmp   eax,[fat32part]
        jle     position_3_1
  position_4:
        test  [DRIVE_DATA+1],byte 0x1
        jz    no_sys_on_hd
        mov   [hdbase],0x170
        mov   [hdid],0x10
        mov   [hdpos],4
        mov   [fat32part],0
  position_4_1:
        inc   [fat32part]
        call  search_and_read_image
        cmp   [image_retrieved],1
        je    yes_sys_on_hd
        movzx eax,byte [DRIVE_DATA+5]
        cmp   eax,[fat32part]
        jle     position_4_1
        jmp   yes_sys_on_hd
 
  search_and_read_image:
        call  set_FAT32_variables
        mov   edx, bootpath
        call  read_image
        test  eax, eax
        jz   image_present
        mov   edx, bootpath2
        call  read_image
        test  eax, eax
        jz   image_present
        ret
    image_present:
        mov   [image_retrieved],1
        ret
 
read_image:
        mov   eax, hdsysimage
        mov   ebx, 1474560/512
        mov   ecx, RAMDISK
        mov   esi, 0
        mov   edi, 12
        call  file_read
        ret
 
image_retrieved  db 0
counter_of_partitions db 0
no_sys_on_hd:
yes_sys_on_hd:

Rev 425	Rev 431
1	$Revision: 425 $	1	$Revision: 431 $
-		2	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-		3	;; ;;
-		4	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
-		5	;; Distributed under terms of the GNU General Public License ;;
-		6	;; ;;
-		7	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-		8
2	; READ RAMDISK IMAGE FROM HD	9	; READ RAMDISK IMAGE FROM HD
3		10
4	cmp [boot_dev],1	11	cmp [boot_dev],1
5	jne no_sys_on_hd	12	jne no_sys_on_hd
6		13
7	test [DRIVE_DATA+1],byte 0x40	14	test [DRIVE_DATA+1],byte 0x40
8	jz position_2	15	jz position_2
9	mov [hdbase],0x1f0	16	mov [hdbase],0x1f0
10	mov [hdid],0x0	17	mov [hdid],0x0
11	mov [hdpos],1	18	mov [hdpos],1
12	mov [fat32part],0	19	mov [fat32part],0
13	position_1_1:	20	position_1_1:
14	inc [fat32part]	21	inc [fat32part]
15	call search_and_read_image	22	call search_and_read_image
16	cmp [image_retrieved],1	23	cmp [image_retrieved],1
17	je yes_sys_on_hd	24	je yes_sys_on_hd
18	movzx eax,byte [DRIVE_DATA+2]	25	movzx eax,byte [DRIVE_DATA+2]
19	cmp [fat32part],eax	26	cmp [fat32part],eax
20	jle position_1_1	27	jle position_1_1
21	position_2:	28	position_2:
22	test [DRIVE_DATA+1],byte 0x10	29	test [DRIVE_DATA+1],byte 0x10
23	jz position_3	30	jz position_3
24	mov [hdbase],0x1f0	31	mov [hdbase],0x1f0
25	mov [hdid],0x10	32	mov [hdid],0x10
26	mov [hdpos],2	33	mov [hdpos],2
27	mov [fat32part],0	34	mov [fat32part],0
28	position_2_1:	35	position_2_1:
29	inc [fat32part]	36	inc [fat32part]
30	call search_and_read_image	37	call search_and_read_image
31	cmp [image_retrieved],1	38	cmp [image_retrieved],1
32	je yes_sys_on_hd	39	je yes_sys_on_hd
33	movzx eax,byte [DRIVE_DATA+3]	40	movzx eax,byte [DRIVE_DATA+3]
34	cmp eax,[fat32part]	41	cmp eax,[fat32part]
35	jle position_2_1	42	jle position_2_1
36	position_3:	43	position_3:
37	test [DRIVE_DATA+1],byte 0x4	44	test [DRIVE_DATA+1],byte 0x4
38	jz position_4	45	jz position_4
39	mov [hdbase],0x170	46	mov [hdbase],0x170
40	mov [hdid],0x0	47	mov [hdid],0x0
41	mov [hdpos],3	48	mov [hdpos],3
42	mov [fat32part],0	49	mov [fat32part],0
43	position_3_1:	50	position_3_1:
44	inc [fat32part]	51	inc [fat32part]
45	call search_and_read_image	52	call search_and_read_image
46	cmp [image_retrieved],1	53	cmp [image_retrieved],1
47	je yes_sys_on_hd	54	je yes_sys_on_hd
48	movzx eax,byte [DRIVE_DATA+4]	55	movzx eax,byte [DRIVE_DATA+4]
49	cmp eax,[fat32part]	56	cmp eax,[fat32part]
50	jle position_3_1	57	jle position_3_1
51	position_4:	58	position_4:
52	test [DRIVE_DATA+1],byte 0x1	59	test [DRIVE_DATA+1],byte 0x1
53	jz no_sys_on_hd	60	jz no_sys_on_hd
54	mov [hdbase],0x170	61	mov [hdbase],0x170
55	mov [hdid],0x10	62	mov [hdid],0x10
56	mov [hdpos],4	63	mov [hdpos],4
57	mov [fat32part],0	64	mov [fat32part],0
58	position_4_1:	65	position_4_1:
59	inc [fat32part]	66	inc [fat32part]
60	call search_and_read_image	67	call search_and_read_image
61	cmp [image_retrieved],1	68	cmp [image_retrieved],1
62	je yes_sys_on_hd	69	je yes_sys_on_hd
63	movzx eax,byte [DRIVE_DATA+5]	70	movzx eax,byte [DRIVE_DATA+5]
64	cmp eax,[fat32part]	71	cmp eax,[fat32part]
65	jle position_4_1	72	jle position_4_1
66	jmp yes_sys_on_hd	73	jmp yes_sys_on_hd
67		74
68	search_and_read_image:	75	search_and_read_image:
69	call set_FAT32_variables	76	call set_FAT32_variables
70	mov edx, bootpath	77	mov edx, bootpath
71	call read_image	78	call read_image
72	test eax, eax	79	test eax, eax
73	jz image_present	80	jz image_present
74	mov edx, bootpath2	81	mov edx, bootpath2
75	call read_image	82	call read_image
76	test eax, eax	83	test eax, eax
77	jz image_present	84	jz image_present
78	ret	85	ret
79	image_present:	86	image_present:
80	mov [image_retrieved],1	87	mov [image_retrieved],1
81	ret	88	ret
82		89
83	read_image:	90	read_image:
84	mov eax, hdsysimage	91	mov eax, hdsysimage
85	mov ebx, 1474560/512	92	mov ebx, 1474560/512
86	mov ecx, RAMDISK	93	mov ecx, RAMDISK
87	mov esi, 0	94	mov esi, 0
88	mov edi, 12	95	mov edi, 12
89	call file_read	96	call file_read
90	ret	97	ret
91		98
92	image_retrieved db 0	99	image_retrieved db 0
93	counter_of_partitions db 0	100	counter_of_partitions db 0
94	no_sys_on_hd:	101	no_sys_on_hd:
95	yes_sys_on_hd:	102	yes_sys_on_hd:

Subversion Repositories Kolibri OS

(root)/kernel/trunk/boot/rdload.inc – Rev 425 → 431