WebSVN – Kolibri OS – Blame – /kernel/branches/Kolibri-acpi/boot/bootcode.inc

Rev	Author	Line No.	Line
431	serge	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
		4	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
		5	;; Distributed under terms of the GNU General Public License ;;
		6	;; ;;
		7	;; BOOTCODE.INC ;;
		8	;; ;;
		9	;; KolibriOS 16-bit loader, ;;
		10	;; based on bootcode for MenuetOS ;;
		11	;; ;;
		12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1	ha	13
593	mikedld	14	$Revision: 2434 $
1	ha	15
		16
		17	;==========================================================================
		18	;
		19	; 16 BIT FUNCTIONS
		20	;
		21	;==========================================================================
		22
183	diamond	23
29	halyavin	24	putchar:
		25	; in: al=character
514	diamond	26	mov ah, 0Eh
		27	mov bh, 0
		28	int 10h
		29	ret
1	ha	30
29	halyavin	31	print:
		32	; in: si->string
514	diamond	33	mov al, 186
		34	call putchar
		35	mov al, ' '
		36	call putchar
1	ha	37
29	halyavin	38	printplain:
		39	; in: si->string
514	diamond	40	pusha
		41	lodsb
29	halyavin	42	@@:
514	diamond	43	call putchar
		44	lodsb
2434	Serge	45	test al, al
514	diamond	46	jnz @b
		47	popa
		48	ret
1	ha	49
29	halyavin	50	getkey:
		51	; get number in range [bl,bh] (bl,bh in ['0'..'9'])
		52	; in: bx=range
		53	; out: ax=digit (1..9, 10 for 0)
514	diamond	54	mov ah, 0
		55	int 16h
		56	cmp al, bl
		57	jb getkey
		58	cmp al, bh
		59	ja getkey
		60	push ax
		61	call putchar
		62	pop ax
		63	and ax, 0Fh
		64	jnz @f
		65	mov al, 10
29	halyavin	66	@@:
514	diamond	67	ret
1	ha	68
29	halyavin	69	setcursor:
		70	; in: dl=column, dh=row
514	diamond	71	mov ah, 2
		72	mov bh, 0
		73	int 10h
		74	ret
29	halyavin	75
		76	macro _setcursor row,column
		77	{
514	diamond	78	mov dx, row*256 + column
		79	call setcursor
29	halyavin	80	}
		81
134	diamond	82	boot_read_floppy:
		83	push si
		84	xor si, si
		85	mov ah, 2 ; read
		86	@@:
		87	push ax
		88	int 0x13
		89	pop ax
		90	jnc @f
		91	inc si
		92	cmp si, 10
		93	jb @b
2010	serge	94	sayerr_badsect:
465	serge	95	mov si, badsect
134	diamond	96	sayerr_plain:
		97	call printplain
		98	jmp $
		99	@@:
		100	pop si
		101	ret
		102
795	shurf	103	; convert abs. sector number (AX) to BIOS T:H:S
		104	; sector number = (abs.sector%BPB_SecPerTrk)+1
		105	; pre.track number = (abs.sector/BPB_SecPerTrk)
		106	; head number = pre.track number%BPB_NumHeads
		107	; track number = pre.track number/BPB_NumHeads
		108	; Return: cl - sector number
		109	; ch - track number
		110	; dl - drive number (0 = a:)
		111	; dh - head number
		112	conv_abs_to_THS:
		113	push bx
2434	Serge	114	mov bx, word [BPB_SecPerTrk]
		115	xor dx, dx
795	shurf	116	div bx
		117	inc dx
		118	mov cl, dl ; cl = sector number
2434	Serge	119	mov bx, word [BPB_NumHeads]
		120	xor dx, dx
795	shurf	121	div bx
		122	; !!!!!!! ax = track number, dx = head number
2434	Serge	123	mov ch, al ; ch=track number
		124	xchg dh, dl ; dh=head number
		125	mov dl, 0 ; dl=0 (drive 0 (a:))
795	shurf	126	pop bx
		127	retn
		128	; needed variables
816	Lrz	129	BPB_SecPerTrk dw 0 ; sectors per track
		130	BPB_NumHeads dw 0 ; number of heads
		131	BPB_FATSz16 dw 0 ; size of FAT
		132	BPB_RootEntCnt dw 0 ; count of root dir. entries
		133	BPB_BytsPerSec dw 0 ; bytes per sector
		134	BPB_RsvdSecCnt dw 0 ; number of reserved sectors
		135	BPB_TotSec16 dw 0 ; count of the sectors on the volume
		136	BPB_SecPerClus db 0 ; number of sectors per cluster
		137	BPB_NumFATs db 0 ; number of FAT tables
		138	abs_sector_adj dw 0 ; adjustment to make abs. sector number
		139	end_of_FAT dw 0 ; end of FAT table
		140	FirstDataSector dw 0 ; begin of data
795	shurf	141
1	ha	142	;=========================================================================
		143	;
		144	; 16 BIT CODE
		145	;
		146	;=========================================================================
		147
713	Lrz	148	include 'bootvesa.inc' ;Include source for boot vesa
2010	serge	149	if defined extended_primary_loader
		150	include 'parsers.inc'
		151	end if
1	ha	152
		153	start_of_code:
2010	serge	154
		155	if defined extended_primary_loader
		156	; save data from primary loader
		157	mov word [cs:bootcallback], si
		158	mov word [cs:bootcallback+2], ds
		159	push cs
		160	pop ds
		161	mov [bootdevice], ax
		162	mov [bootfs], bx
		163
		164	; set up stack
		165	mov ax, 3000h
		166	mov ss, ax
		167	mov sp, 0EC00h
		168
		169	; try to load configuration file
		170	mov ax, 1
		171	mov di, config_file_struct
		172	call [bootcallback]
514	diamond	173	cld
2010	serge	174	push cs
		175	pop es
		176	; bx=0 - ok, bx=1 - part of file loaded, assume this is ok
		177	cmp bx, 1
		178	ja .config_bad
		179	; configuration file was loaded, parse
		180	; if length is too big, use first 0FFFFh bytes
		181	test dx, dx
		182	jz @f
		183	mov ax, 0FFFFh
		184	@@:
		185	; ds:si will be pointer to current data, dx = limit
		186	xchg ax, dx
		187	push 4000h
		188	pop ds
		189	xor si, si
		190	.parse_loop:
		191	; skip spaces
		192	cmp si, dx
		193	jae .parse_done
		194	lodsb
		195	cmp al, ' '
		196	jbe .parse_loop
		197	dec si
		198	; loop over all possible configuration values
		199	mov bx, config_file_variables
		200	.find_variant:
		201	; get length
		202	mov cx, [es:bx]
		203	; zero length = end of list
		204	jecxz .find_newline
		205	; skip over length
		206	inc bx
		207	inc bx
		208	mov di, bx
		209	; skip over string
		210	add bx, cx
		211	; test whether we have at least cx symbols left
		212	mov ax, cx
		213	add ax, si
		214	jc .next_variant1
		215	cmp ax, dx
		216	jae .next_variant1
		217	; save current position
		218	push si
		219	; compare strings
		220	repz cmpsb
		221	jnz .next_variant2
		222	; strings are equal; look for "=" with possible spaces before and after
		223	@@:
		224	cmp si, dx
		225	jae .next_variant2
		226	lodsb
		227	cmp al, ' '
		228	jbe @b
		229	cmp al, '='
		230	jnz .next_variant2
		231	; ok, we found the true variant
		232	; ignore saved position on the stack
		233	pop ax
		234	; call the parser
		235	call word [es:bx]
		236	; line parsed, find next
		237	.find_newline:
		238	cmp si, dx
		239	jae .parse_done
		240	lodsb
		241	cmp al, 13
		242	jz .parse_loop
		243	cmp al, 10
		244	jz .parse_loop
		245	jmp .find_newline
		246	.next_variant2:
		247	; continue to the next variant, restoring current position
		248	pop si
		249	.next_variant1:
		250	; continue to the next variant
		251	; skip over the parser
		252	inc bx
		253	inc bx
		254	jmp .find_variant
		255	.parse_done:
		256	.config_bad:
		257
		258	; set up segment registers
		259	push cs
		260	pop ds
		261	else
		262	cld
29	halyavin	263	; \begin{diamond}[02.12.2005]
514	diamond	264	; if bootloader sets ax = 'KL', then ds:si points to loader block
		265	cmp ax, 'KL'
		266	jnz @f
		267	mov word [cs:cfgmanager.loader_block], si
		268	mov word [cs:cfgmanager.loader_block+2], ds
29	halyavin	269	@@:
		270	; \end{diamond}[02.12.2005]
1	ha	271
514	diamond	272	; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk
		273	; (see comment to bx_from_load)
		274	cmp cx, 'HA'
		275	jnz no_hd_load
2434	Serge	276	cmp dx, 'RD'
514	diamond	277	jnz no_hd_load
		278	mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007]
488	spraid	279	no_hd_load:
		280
29	halyavin	281	; set up stack
514	diamond	282	mov ax, 3000h
		283	mov ss, ax
		284	mov sp, 0EC00h
29	halyavin	285	; set up segment registers
514	diamond	286	push cs
		287	pop ds
		288	push cs
		289	pop es
2010	serge	290	end if
1	ha	291
29	halyavin	292	; set videomode
514	diamond	293	mov ax, 3
		294	int 0x10
1	ha	295
134	diamond	296	if lang eq ru
1	ha	297	; Load & set russian VGA font (RU.INC)
514	diamond	298	mov bp, RU_FNT1 ; RU_FNT1 - First part
		299	mov bx, 1000h ; 768 bytes
		300	mov cx, 30h ; 48 symbols
		301	mov dx, 80h ; 128 - position of first symbol
		302	mov ax, 1100h
		303	int 10h
1	ha	304
514	diamond	305	mov bp, RU_FNT2 ; RU_FNT2 -Second part
		306	mov bx, 1000h ; 512 bytes
		307	mov cx, 20h ; 32 symbols
		308	mov dx, 0E0h ; 224 - position of first symbol
		309	mov ax, 1100h
		310	int 10h
1	ha	311	; End set VGA russian font
274	kaitz	312	else if lang eq et
514	diamond	313	mov bp, ET_FNT ; ET_FNT1
		314	mov bx, 1000h ;
		315	mov cx, 255 ; 256 symbols
		316	xor dx, dx ; 0 - position of first symbol
		317	mov ax, 1100h
		318	int 10h
134	diamond	319	end if
1	ha	320
29	halyavin	321	; draw frames
514	diamond	322	push 0xb800
		323	pop es
		324	xor di, di
		325	mov ah, 1*16+15
465	serge	326
29	halyavin	327	; draw top
514	diamond	328	mov si, d80x25_top
		329	mov cx, d80x25_top_num * 80
29	halyavin	330	@@:
514	diamond	331	lodsb
		332	stosw
		333	loop @b
29	halyavin	334	; draw spaces
514	diamond	335	mov si, space_msg
		336	mov dx, 25 - d80x25_top_num - d80x25_bottom_num
29	halyavin	337	dfl1:
514	diamond	338	push si
		339	mov cx, 80
29	halyavin	340	@@:
514	diamond	341	lodsb
		342	stosw
		343	loop @b
		344	pop si
		345	dec dx
		346	jnz dfl1
29	halyavin	347	; draw bottom
514	diamond	348	mov si, d80x25_bottom
		349	mov cx, d80x25_bottom_num * 80
29	halyavin	350	@@:
514	diamond	351	lodsb
		352	stosw
		353	loop @b
1	ha	354
514	diamond	355	mov byte [space_msg+80], 0 ; now space_msg is null terminated
1	ha	356
514	diamond	357	_setcursor d80x25_top_num,0
1	ha	358
		359
		360	; TEST FOR 386+
		361
514	diamond	362	mov bx, 0x4000
1	ha	363	pushf
		364	pop ax
514	diamond	365	mov dx, ax
		366	xor ax, bx
1	ha	367	push ax
		368	popf
		369	pushf
		370	pop ax
514	diamond	371	and ax, bx
		372	and dx, bx
		373	cmp ax, dx
1	ha	374	jnz cpugood
514	diamond	375	mov si, not386
40	halyavin	376	sayerr:
1	ha	377	call print
		378	jmp $
		379	cpugood:
		380
514	diamond	381	push 0
465	serge	382	popf
		383	sti
		384
29	halyavin	385	; set up esp
514	diamond	386	movzx esp, sp
1	ha	387
160	diamond	388	push 0
		389	pop es
		390	and word [es:0x9031], 0
164	serge	391	; \begin{Mario79}
		392	; find HDD IDE DMA PCI device
160	diamond	393	; check for PCI BIOS
		394	mov ax, 0xB101
		395	int 0x1A
		396	jc .nopci
		397	cmp edx, 'PCI '
		398	jnz .nopci
		399	; find PCI class code
		400	; class 1 = mass storage
		401	; subclass 1 = IDE controller
		402	; a) class 1, subclass 1, programming interface 0x80
		403	mov ax, 0xB103
		404	mov ecx, 110000h + 1100h + 0x80
514	diamond	405	xor si, si ; device index = 0
160	diamond	406	int 0x1A
		407	jnc .found
187	diamond	408	; b) class 1, subclass 1, programming interface 0x8A
160	diamond	409	mov ax, 0xB103
187	diamond	410	mov ecx, 110000h + 1100h + 0x8A
514	diamond	411	xor si, si ; device index = 0
160	diamond	412	int 0x1A
		413	jnc .found
187	diamond	414	; c) class 1, subclass 1, programming interface 0x85
160	diamond	415	mov ax, 0xB103
187	diamond	416	mov ecx, 110000h + 1100h + 0x85
514	diamond	417	xor si, si
160	diamond	418	int 0x1A
		419	jc .nopci
		420	.found:
		421	; get memory base
		422	mov ax, 0xB10A
		423	mov di, 0x20 ; memory base is config register at 0x20
		424	int 0x1A
		425	jc .nopci
		426	and cx, 0xFFF0 ; clear address decode type
		427	mov [es:0x9031], cx
		428	.nopci:
164	serge	429	; \end{Mario79}
160	diamond	430
514	diamond	431	mov al, 0xf6 ; �� , ��
		432	out 0x60, al
		433	xor cx, cx
1	ha	434	wait_loop: ; variant 2
		435	; reading state of port of 8042 controller
514	diamond	436	in al, 64h
		437	and al, 00000010b ; ready flag
164	serge	438	; wait until 8042 controller is ready
1	ha	439	loopnz wait_loop
		440
713	Lrz	441	;;;/diamond today 5.02.2008
		442	; set keyboard typematic rate & delay
		443	mov al, 0xf3
		444	out 0x60, al
		445	xor cx, cx
		446	@@:
		447	in al, 64h
		448	test al, 2
		449	loopnz @b
		450	mov al, 0
		451	out 0x60, al
		452	xor cx, cx
		453	@@:
		454	in al, 64h
		455	test al, 2
		456	loopnz @b
		457	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
76	mario79	458	; --------------- APM ---------------------
514	diamond	459	and word [es:0x9044], 0 ; ver = 0.0 (APM not found)
		460	mov ax, 0x5300
		461	xor bx, bx
		462	int 0x15
		463	jc apm_end ; APM not found
		464	test cx, 2
		465	jz apm_end ; APM 32-bit protected-mode interface not supported
		466	mov [es:0x9044], ax ; Save APM Version
		467	mov [es:0x9046], cx ; Save APM flags
164	serge	468
514	diamond	469	; Write APM ver ----
		470	and ax, 0xf0f
		471	add ax, '00'
		472	mov si, msg_apm
		473	mov [si + 5], ah
		474	mov [si + 7], al
		475	_setcursor 0, 3
		476	call printplain
		477	; ------------------
164	serge	478
514	diamond	479	mov ax, 0x5304 ; Disconnect interface
		480	xor bx, bx
		481	int 0x15
		482	mov ax, 0x5303 ; Connect 32 bit mode interface
		483	xor bx, bx
		484	int 0x15
465	serge	485
514	diamond	486	mov [es:0x9040], ebx
		487	mov [es:0x9050], ax
		488	mov [es:0x9052], cx
		489	mov [es:0x9054], dx
465	serge	490
76	mario79	491	apm_end:
437	diamond	492	_setcursor d80x25_top_num, 0
76	mario79	493
2010	serge	494	if ~ defined extended_primary_loader
713	Lrz	495	;CHECK current of code
		496	cmp [cfgmanager.loader_block], -1
		497	jz noloaderblock
		498	les bx, [cfgmanager.loader_block]
		499	cmp byte [es:bx], 1
		500	mov si, loader_block_error
		501	jnz sayerr
737	diamond	502	push 0
		503	pop es
2010	serge	504	end if
713	Lrz	505
		506	noloaderblock:
1	ha	507	; DISPLAY VESA INFORMATION
713	Lrz	508	call print_vesa_info
		509	call calc_vmodes_table
		510	call check_first_parm ;check and enable cursor_pos
1	ha	511
29	halyavin	512	; \begin{diamond}[30.11.2005]
		513	cfgmanager:
		514	; settings:
		515	; a) preboot_graph = graphical mode
		516	; preboot_gprobe = probe this mode?
713	Lrz	517	; b) preboot_dma = use DMA access?
29	halyavin	518	; c) preboot_vrrm = use VRR?
		519	; d) preboot_device = from what boot?
713	Lrz	520
29	halyavin	521	; determine default settings
2010	serge	522	if ~ defined extended_primary_loader
514	diamond	523	mov [.bSettingsChanged], 0
2010	serge	524	end if
713	Lrz	525
		526	;.preboot_gr_end:
726	diamond	527	mov di, preboot_device
		528	; if image in memory is present and [preboot_device] is uninitialized,
		529	; set it to use this preloaded image
		530	cmp byte [di], 0
		531	jnz .preboot_device_inited
2010	serge	532	if defined extended_primary_loader
		533	inc byte [di]
		534	cmp byte [bootdevice], 'f' ; floppy?
		535	jz .preboot_device_inited
		536	inc byte [di]
		537	else
726	diamond	538	cmp [.loader_block], -1
		539	jz @f
		540	les bx, [.loader_block]
		541	test byte [es:bx+1], 1
		542	jz @f
		543	mov byte [di], 3
		544	jmp .preboot_device_inited
		545	@@:
		546	; otherwise, set [preboot_device] to 1 (default value - boot from floppy)
		547	mov byte [di], 1
2010	serge	548	end if
726	diamond	549	.preboot_device_inited:
1018	diamond	550	; following 4 lines set variables to 1 if its current value is 0
726	diamond	551	cmp byte [di+preboot_dma-preboot_device], 1
		552	adc byte [di+preboot_dma-preboot_device], 0
		553	cmp byte [di+preboot_biosdisk-preboot_device], 1
		554	adc byte [di+preboot_biosdisk-preboot_device], 0
2268	Serge	555	;; default value for VRR is OFF
		556	; cmp byte [di+preboot_vrrm-preboot_device], 0
		557	; jnz @f
		558	; mov byte [di+preboot_vrrm-preboot_device], 2
		559	;@@:
29	halyavin	560	; notify user
713	Lrz	561	_setcursor 5,2
		562
514	diamond	563	mov si, linef
713	Lrz	564	call printplain
514	diamond	565	mov si, start_msg
		566	call print
		567	mov si, time_msg
		568	call print
29	halyavin	569	; get start time
514	diamond	570	call .gettime
		571	mov [.starttime], eax
		572	mov word [.timer], .newtimer
		573	mov word [.timer+2], cs
29	halyavin	574	.printcfg:
946	lrz	575
514	diamond	576	_setcursor 9,0
		577	mov si, current_cfg_msg
		578	call print
		579	mov si, curvideo_msg
		580	call print
713	Lrz	581
		582	call draw_current_vmode
		583
709	diamond	584	mov si, usebd_msg
		585	cmp [preboot_biosdisk], 1
		586	call .say_on_off
2268	Serge	587	; mov si, vrrm_msg
		588	; cmp [preboot_vrrm], 1
		589	; call .say_on_off
514	diamond	590	mov si, preboot_device_msg
		591	call print
		592	mov al, [preboot_device]
2010	serge	593	if defined extended_primary_loader
		594	and eax, 3
		595	else
545	spraid	596	and eax, 7
2010	serge	597	end if
514	diamond	598	mov si, [preboot_device_msgs+eax*2]
		599	call printplain
726	diamond	600	.show_remarks:
		601	; show remarks in gray color
		602	mov di, ((21-num_remarks)80 + 2)2
		603	push 0xB800
		604	pop es
		605	mov cx, num_remarks
		606	mov si, remarks
		607	.write_remarks:
		608	lodsw
		609	push si
		610	xchg ax, si
		611	mov ah, 1*16+7 ; background: blue (1), foreground: gray (7)
		612	push di
		613	.write_remark:
		614	lodsb
		615	test al, al
		616	jz @f
		617	stosw
		618	jmp .write_remark
		619	@@:
		620	pop di
		621	pop si
		622	add di, 80*2
		623	loop .write_remarks
29	halyavin	624	.wait:
514	diamond	625	_setcursor 25,0 ; out of screen
34	halyavin	626	; set timer interrupt handler
514	diamond	627	cli
		628	push 0
		629	pop es
713	Lrz	630	push dword [es:8*4]
		631	pop dword [.oldtimer]
		632	push dword [.timer]
		633	pop dword [es:8*4]
		634	; mov eax, [es:8*4]
		635	; mov [.oldtimer], eax
		636	; mov eax, [.timer]
		637	; mov [es:8*4], eax
514	diamond	638	sti
29	halyavin	639	; wait for keypressed
2434	Serge	640	xor ax, ax
514	diamond	641	int 16h
		642	push ax
29	halyavin	643	; restore timer interrupt
713	Lrz	644	; push 0
		645	; pop es
514	diamond	646	mov eax, [.oldtimer]
		647	mov [es:8*4], eax
		648	mov [.timer], eax
946	lrz	649
514	diamond	650	_setcursor 7,0
		651	mov si, space_msg
		652	call printplain
726	diamond	653	; clear remarks and restore normal attributes
		654	push es
		655	mov di, ((21-num_remarks)80 + 2)2
		656	push 0xB800
		657	pop es
		658	mov cx, num_remarks
		659	mov ax, ' ' + (116 + 15)100h
		660	@@:
		661	push cx
		662	mov cx, 76
		663	rep stosw
		664	pop cx
		665	add di, 4*2
		666	loop @b
		667	pop es
514	diamond	668	pop ax
29	halyavin	669	; switch on key
514	diamond	670	cmp al, 13
		671	jz .continue
		672	or al, 20h
		673	cmp al, 'a'
		674	jz .change_a
		675	cmp al, 'b'
		676	jz .change_b
2268	Serge	677	; cmp al, 'c'
		678	; jz .change_c
		679	cmp al, 'c' ; 'd'
726	diamond	680	jnz .show_remarks
514	diamond	681	_setcursor 15,0
		682	mov si, bdev
		683	call print
2010	serge	684	if defined extended_primary_loader
		685	mov bx, '12'
		686	else
545	spraid	687	mov bx, '14'
2010	serge	688	end if
514	diamond	689	call getkey
		690	mov [preboot_device], al
		691	_setcursor 13,0
29	halyavin	692	.d:
2010	serge	693	if ~ defined extended_primary_loader
514	diamond	694	mov [.bSettingsChanged], 1
2010	serge	695	end if
713	Lrz	696	call clear_vmodes_table ;clear vmodes_table
514	diamond	697	jmp .printcfg
29	halyavin	698	.change_a:
713	Lrz	699	.loops:
		700	call draw_vmodes_table
816	Lrz	701	_setcursor 25,0 ; out of screen
2434	Serge	702	xor ax, ax
713	Lrz	703	int 0x16
		704	; call clear_table_cursor ;clear current position of cursor
		705
2434	Serge	706	mov si, word [cursor_pos]
713	Lrz	707
2434	Serge	708	cmp ah, 0x48;x,0x48E0 ; up
713	Lrz	709	jne .down
2434	Serge	710	cmp si, modes_table
713	Lrz	711	jbe .loops
2434	Serge	712	sub word [cursor_pos], size_of_step
713	Lrz	713	jmp .loops
		714
2434	Serge	715	.down:
		716	cmp ah, 0x50;x,0x50E0 ; down
730	diamond	717	jne .pgup
2434	Serge	718	cmp word[es:si+10], -1
713	Lrz	719	je .loops
2434	Serge	720	add word [cursor_pos], size_of_step
713	Lrz	721	jmp .loops
		722
2434	Serge	723	.pgup:
		724	cmp ah, 0x49 ; page up
730	diamond	725	jne .pgdn
731	diamond	726	sub si, size_of_step*long_v_table
730	diamond	727	cmp si, modes_table
		728	jae @f
		729	mov si, modes_table
		730	@@:
		731	mov word [cursor_pos], si
		732	mov si, word [home_cursor]
731	diamond	733	sub si, size_of_step*long_v_table
730	diamond	734	cmp si, modes_table
		735	jae @f
		736	mov si, modes_table
		737	@@:
		738	mov word [home_cursor], si
		739	jmp .loops
		740
2434	Serge	741	.pgdn:
		742	cmp ah, 0x51 ; page down
730	diamond	743	jne .enter
		744	mov ax, [end_cursor]
731	diamond	745	add si, size_of_step*long_v_table
730	diamond	746	cmp si, ax
		747	jb @f
		748	mov si, ax
		749	sub si, size_of_step
		750	@@:
		751	mov word [cursor_pos], si
		752	mov si, word [home_cursor]
731	diamond	753	sub ax, size_of_step*long_v_table
		754	add si, size_of_step*long_v_table
730	diamond	755	cmp si, ax
		756	jb @f
		757	mov si, ax
		758	@@:
		759	mov word [home_cursor], si
		760	jmp .loops
		761
2434	Serge	762	.enter:
		763	cmp al, 0x0D;x,0x1C0D ; enter
713	Lrz	764	jne .loops
		765	push word [cursor_pos]
746	Lrz	766	pop bp
		767	push word [es:bp]
		768	pop word [x_save]
		769	push word [es:bp+2]
		770	pop word [y_save]
816	Lrz	771	push word [es:bp+6]
749	Lrz	772	pop word [number_vm]
2434	Serge	773	mov word [preboot_graph], bp ;save choose
746	Lrz	774
514	diamond	775	jmp .d
713	Lrz	776
29	halyavin	777	.change_b:
514	diamond	778	_setcursor 15,0
709	diamond	779	; mov si, ask_dma
		780	; call print
		781	; mov bx, '13'
		782	; call getkey
		783	; mov [preboot_dma], al
		784	mov si, ask_bd
514	diamond	785	call print
709	diamond	786	mov bx, '12'
514	diamond	787	call getkey
709	diamond	788	mov [preboot_biosdisk], al
514	diamond	789	_setcursor 11,0
		790	jmp .d
2268	Serge	791	;.change_c:
		792	; _setcursor 15,0
		793	; mov si, vrrmprint
		794	; call print
		795	; mov bx, '12'
		796	; call getkey
		797	; mov [preboot_vrrm], al
		798	; _setcursor 12,0
		799	; jmp .d
713	Lrz	800	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
40	halyavin	801	.say_on_off:
514	diamond	802	pushf
		803	call print
		804	mov si, on_msg
		805	popf
		806	jz @f
		807	mov si, off_msg
2434	Serge	808	@@:
		809	jmp printplain
40	halyavin	810	; novesa and vervesa strings are not used at the moment of executing this code
		811	virtual at novesa
29	halyavin	812	.oldtimer dd ?
		813	.starttime dd ?
2010	serge	814	if ~ defined extended_primary_loader
29	halyavin	815	.bSettingsChanged db ?
2010	serge	816	end if
34	halyavin	817	.timer dd ?
40	halyavin	818	end virtual
2010	serge	819	if ~ defined extended_primary_loader
143	diamond	820	.loader_block dd -1
2010	serge	821	end if
29	halyavin	822	.gettime:
514	diamond	823	mov ah, 0
		824	int 1Ah
		825	xchg ax, cx
		826	shl eax, 10h
		827	xchg ax, dx
		828	ret
29	halyavin	829	.newtimer:
514	diamond	830	push ds
		831	push cs
		832	pop ds
		833	pushf
		834	call [.oldtimer]
		835	pushad
		836	call .gettime
		837	sub eax, [.starttime]
2010	serge	838	if defined extended_primary_loader
		839	sub ax, [preboot_timeout]
		840	else
514	diamond	841	sub ax, 18*5
2010	serge	842	end if
514	diamond	843	jae .timergo
		844	neg ax
		845	add ax, 18-1
		846	mov bx, 18
		847	xor dx, dx
		848	div bx
29	halyavin	849	if lang eq ru
		850	; �� 5 ᥪ㭤, 4/3/2 ᥪ㭤�, 1 ᥪ㭤�
514	diamond	851	cmp al, 5
		852	mov cl, ' '
		853	jae @f
		854	cmp al, 1
		855	mov cl, '�'
		856	jz @f
		857	mov cl, '�'
2434	Serge	858	@@:
		859	mov [time_str+9], cl
274	kaitz	860	else if lang eq et
514	diamond	861	cmp al, 1
		862	ja @f
		863	mov [time_str+9], ' '
2434	Serge	864	mov [time_str+10], ' '
381	serge	865	@@:
29	halyavin	866	else
		867	; wait 5/4/3/2 seconds, 1 second
514	diamond	868	cmp al, 1
		869	mov cl, 's'
		870	ja @f
		871	mov cl, ' '
2434	Serge	872	@@:
		873	mov [time_str+9], cl
29	halyavin	874	end if
514	diamond	875	add al, '0'
		876	mov [time_str+1], al
		877	mov si, time_msg
		878	_setcursor 7,0
		879	call print
		880	_setcursor 25,0
		881	popad
		882	pop ds
		883	iret
29	halyavin	884	.timergo:
514	diamond	885	push 0
		886	pop es
		887	mov eax, [.oldtimer]
		888	mov [es:8*4], eax
		889	mov sp, 0EC00h
29	halyavin	890	.continue:
514	diamond	891	sti
		892	_setcursor 6,0
		893	mov si, space_msg
		894	call printplain
		895	call printplain
		896	_setcursor 6,0
		897	mov si, loading_msg
		898	call print
		899	_setcursor 15,0
2010	serge	900	if ~ defined extended_primary_loader
514	diamond	901	cmp [.bSettingsChanged], 0
		902	jz .load
		903	cmp [.loader_block], -1
		904	jz .load
		905	les bx, [.loader_block]
		906	mov eax, [es:bx+3]
		907	push ds
		908	pop es
		909	test eax, eax
		910	jz .load
		911	push eax
		912	mov si, save_quest
		913	call print
29	halyavin	914	.waityn:
514	diamond	915	mov ah, 0
		916	int 16h
		917	or al, 20h
		918	cmp al, 'n'
		919	jz .loadc
		920	cmp al, 'y'
		921	jnz .waityn
		922	call putchar
		923	mov byte [space_msg+80], 186
946	lrz	924
514	diamond	925	pop eax
		926	push cs
		927	push .cont
		928	push eax
946	lrz	929	retf ;call back
29	halyavin	930	.loadc:
514	diamond	931	pop eax
29	halyavin	932	.cont:
514	diamond	933	push cs
		934	pop ds
		935	mov si, space_msg
		936	mov byte [si+80], 0
		937	_setcursor 15,0
		938	call printplain
		939	_setcursor 15,0
29	halyavin	940	.load:
2010	serge	941	end if
29	halyavin	942	; \end{diamond}[02.12.2005]
1	ha	943
		944	; ASK GRAPHICS MODE
		945
713	Lrz	946	call set_vmode
1	ha	947
		948	; GRAPHICS ACCELERATION
346	diamond	949	; force yes
		950	mov [es:0x901C], byte 1
1	ha	951
514	diamond	952	; DMA ACCESS TO HD
1	ha	953
514	diamond	954	mov al, [preboot_dma]
		955	mov [es:0x901F], al
346	diamond	956
2268	Serge	957	;; VRR_M USE
		958	;
		959	; mov al,[preboot_vrrm]
		960	; mov [es:0x9030], al
514	diamond	961	mov [es:0x901E], byte 1
1	ha	962
		963	; BOOT DEVICE
		964
514	diamond	965	mov al, [preboot_device]
40	halyavin	966	dec al
514	diamond	967	mov [boot_dev], al
1	ha	968
1103	diamond	969	; GET MEMORY MAP
2010	serge	970	include '../detect/biosmem.inc'
1103	diamond	971
1	ha	972	; READ DISKETTE TO MEMORY
		973
2434	Serge	974	cmp [boot_dev], 0
1	ha	975	jne no_sys_on_floppy
2434	Serge	976	mov si, diskload
1	ha	977	call print
514	diamond	978	xor ax, ax ; reset drive
		979	xor dx, dx
1	ha	980	int 0x13
709	diamond	981	; do we boot from CD-ROM?
		982	mov ah, 41h
		983	mov bx, 55AAh
		984	xor dx, dx
		985	int 0x13
		986	jc .nocd
		987	cmp bx, 0AA55h
		988	jnz .nocd
		989	mov ah, 48h
		990	push ds
		991	push es
		992	pop ds
		993	mov si, 0xa000
		994	mov word [si], 30
		995	int 0x13
		996	pop ds
		997	jc .nocd
		998	push ds
		999	lds si, [es:si+26]
		1000	test byte [ds:si+10], 40h
		1001	pop ds
		1002	jz .nocd
		1003	; yes - read all floppy by 18 sectors
795	shurf	1004
		1005	; TODO: !!!! read only first sector and set variables !!!!!
		1006	; ...
		1007	; TODO: !!! then read flippy image track by track
		1008
816	Lrz	1009	mov cx, 0x0001 ; startcyl,startsector
709	diamond	1010	.a1:
		1011	push cx dx
		1012	mov al, 18
		1013	mov bx, 0xa000
		1014	call boot_read_floppy
		1015	mov si, movedesc
		1016	push es
		1017	push ds
		1018	pop es
		1019	mov cx, 256*18
		1020	mov ah, 0x87
		1021	int 0x15
		1022	pop es
		1023	pop dx cx
		1024	test ah, ah
		1025	jnz sayerr_floppy
		1026	add dword [si+83+2], 51218
		1027	inc dh
		1028	cmp dh, 2
		1029	jnz .a1
		1030	mov dh, 0
		1031	inc ch
		1032	cmp ch, 80
		1033	jae ok_sys_on_floppy
		1034	pusha
		1035	mov al, ch
		1036	shr ch, 2
		1037	add al, ch
		1038	aam
		1039	xchg al, ah
		1040	add ax, '00'
		1041	mov si, pros
		1042	mov [si], ax
		1043	call printplain
		1044	popa
		1045	jmp .a1
		1046	.nocd:
		1047	; no - read only used sectors from floppy
134	diamond	1048	; now load floppy image to memory
		1049	; at first load boot sector and first FAT table
795	shurf	1050
		1051	; read only first sector and fill variables
816	Lrz	1052	mov cx, 0x0001 ; first logical sector
		1053	xor dx, dx ; head = 0, drive = 0 (a:)
		1054	mov al, 1 ; read one sector
		1055	mov bx, 0xB000 ; es:bx -> data area
		1056	call boot_read_floppy
795	shurf	1057	; fill the necessary parameters to work with a floppy
816	Lrz	1058	mov ax, word [es:bx+24]
		1059	mov word [BPB_SecPerTrk], ax
		1060	mov ax, word [es:bx+26]
		1061	mov word [BPB_NumHeads], ax
		1062	mov ax, word [es:bx+17]
		1063	mov word [BPB_RootEntCnt], ax
		1064	mov ax, word [es:bx+14]
		1065	mov word [BPB_RsvdSecCnt], ax
		1066	mov ax, word [es:bx+19]
		1067	mov word [BPB_TotSec16], ax
		1068	mov al, byte [es:bx+13]
		1069	mov byte [BPB_SecPerClus], al
		1070	mov al, byte [es:bx+16]
		1071	mov byte [BPB_NumFATs], al
925	Lrz	1072	; 18.11.2008
		1073	mov ax, word [es:bx+22]
		1074	mov word [BPB_FATSz16], ax
		1075	mov cx, word [es:bx+11]
		1076	mov word [BPB_BytsPerSec], cx
		1077
795	shurf	1078	; count of clusters in FAT12 ((size_of_FAT*2)/3)
925	Lrz	1079	; mov ax, word [BPB_FATSz16]
		1080	; mov cx, word [BPB_BytsPerSec]
		1081	;end 18.11.2008
816	Lrz	1082	xor dx, dx
		1083	mul cx
		1084	shl ax, 1
		1085	mov cx, 3
		1086	div cx ; now ax - number of clusters in FAT12
		1087	mov word [end_of_FAT], ax
795	shurf	1088
		1089	; load first FAT table
816	Lrz	1090	mov cx, 0x0002 ; startcyl,startsector ; TODO!!!!!
134	diamond	1091	xor dx, dx ; starthead,drive
795	shurf	1092	mov al, byte [BPB_FATSz16] ; no of sectors to read
		1093	add bx, word [BPB_BytsPerSec] ; es:bx -> data area
134	diamond	1094	call boot_read_floppy
816	Lrz	1095	mov bx, 0xB000
795	shurf	1096
134	diamond	1097	; and copy them to extended memory
465	serge	1098	mov si, movedesc
816	Lrz	1099	mov [si+8*2+3], bh ; from
		1100
		1101	mov ax, word [BPB_BytsPerSec]
		1102	shr ax, 1 ; words per sector
		1103	mov cx, word [BPB_RsvdSecCnt]
		1104	add cx, word [BPB_FATSz16]
		1105	mul cx
		1106	push ax ; save to stack count of words in boot+FAT
		1107	xchg ax, cx
		1108
134	diamond	1109	push es
		1110	push ds
		1111	pop es
		1112	mov ah, 0x87
		1113	int 0x15
816	Lrz	1114	pop es
76	mario79	1115	test ah, ah
134	diamond	1116	jz @f
		1117	sayerr_floppy:
		1118	mov dx, 0x3f2
		1119	mov al, 0
		1120	out dx, al
2010	serge	1121	sayerr_memmove:
465	serge	1122	mov si, memmovefailed
134	diamond	1123	jmp sayerr_plain
		1124	@@:
816	Lrz	1125	pop ax ; restore from stack count of words in boot+FAT
		1126	shl ax, 1 ; make bytes count from count of words
		1127	and eax, 0ffffh
795	shurf	1128	add dword [si+8*3+2], eax
		1129
		1130	; copy first FAT to second copy
		1131	; TODO: BPB_NumFATs !!!!!
816	Lrz	1132	add bx, word [BPB_BytsPerSec] ; !!! TODO: may be need multiply by BPB_RsvdSecCnt !!!
		1133	mov byte [si+8*2+3], bh ; bx - begin of FAT
		1134
		1135	mov ax, word [BPB_BytsPerSec]
		1136	shr ax, 1 ; words per sector
		1137	mov cx, word [BPB_FATSz16]
		1138	mul cx
		1139	mov cx, ax ; cx - count of words in FAT
795	shurf	1140
		1141	push es
		1142	push ds
		1143	pop es
134	diamond	1144	mov ah, 0x87
		1145	int 0x15
		1146	pop es
		1147	test ah, ah
		1148	jnz sayerr_floppy
816	Lrz	1149
		1150	mov ax, cx
		1151	shl ax, 1
		1152	and eax, 0ffffh ; ax - count of bytes in FAT
795	shurf	1153	add dword [si+8*3+2], eax
816	Lrz	1154
795	shurf	1155	; reading RootDir
		1156	; TODO: BPB_NumFATs
816	Lrz	1157	add bx, ax
		1158	add bx, 100h
		1159	and bx, 0ff00h ; bx - place in buffer to write RootDir
		1160	push bx
795	shurf	1161
816	Lrz	1162	mov bx, word [BPB_BytsPerSec]
		1163	shr bx, 5 ; divide bx by 32
		1164	mov ax, word [BPB_RootEntCnt]
		1165	xor dx, dx
		1166	div bx
		1167	push ax ; ax - count of RootDir sectors
795	shurf	1168
816	Lrz	1169	mov ax, word [BPB_FATSz16]
		1170	xor cx, cx
		1171	mov cl, byte [BPB_NumFATs]
		1172	mul cx
		1173	add ax, word [BPB_RsvdSecCnt] ; ax - first sector of RootDir
795	shurf	1174
816	Lrz	1175	mov word [FirstDataSector], ax
		1176	pop bx
		1177	push bx
		1178	add word [FirstDataSector], bx ; Begin of data region of floppy
		1179
795	shurf	1180	; read RootDir
816	Lrz	1181	call conv_abs_to_THS
		1182	pop ax
		1183	pop bx ; place in buffer to write
		1184	push ax
		1185	call boot_read_floppy ; read RootDir into buffer
795	shurf	1186	; copy RootDir
816	Lrz	1187	mov byte [si+8*2+3], bh ; from buffer
		1188	pop ax ; ax = count of RootDir sectors
		1189	mov cx, word [BPB_BytsPerSec]
		1190	mul cx
		1191	shr ax, 1
		1192	mov cx, ax ; count of words to copy
		1193	push es
		1194	push ds
		1195	pop es
795	shurf	1196	mov ah, 0x87
		1197	int 0x15
816	Lrz	1198	pop es
795	shurf	1199
816	Lrz	1200	mov ax, cx
		1201	shl ax, 1
		1202	and eax, 0ffffh ; ax - count of bytes in RootDir
		1203	add dword [si+8*3+2], eax ; add count of bytes copied
795	shurf	1204
		1205	; Reading data clusters from floppy
816	Lrz	1206	mov byte [si+8*2+3], bh
		1207	push bx
795	shurf	1208
816	Lrz	1209	mov di, 2 ; First data cluster
134	diamond	1210	.read_loop:
816	Lrz	1211	mov bx, di
		1212	shr bx, 1 ; bx+di = di*1.5
		1213	jnc .even
		1214	test word [es:bx+di+0xB200], 0xFFF0 ; TODO: may not be 0xB200 !!!
		1215	jmp @f
134	diamond	1216	.even:
816	Lrz	1217	test word [es:bx+di+0xB200], 0xFFF ; TODO: may not be 0xB200 !!!
795	shurf	1218
134	diamond	1219	@@:
816	Lrz	1220	jz .skip
795	shurf	1221	; read cluster di
		1222	;.read:
816	Lrz	1223	;conv cluster di to abs. sector ax
		1224	; ax = (N-2) * BPB_SecPerClus + FirstDataSector
		1225	mov ax, di
		1226	sub ax, 2
		1227	xor bx, bx
		1228	mov bl, byte [BPB_SecPerClus]
		1229	mul bx
		1230	add ax, word [FirstDataSector]
		1231	call conv_abs_to_THS
		1232	pop bx
		1233	push bx
		1234	mov al, byte [BPB_SecPerClus] ; number of sectors in cluster
		1235	call boot_read_floppy
76	mario79	1236	push es
		1237	push ds
1	ha	1238	pop es
134	diamond	1239	pusha
795	shurf	1240	;
816	Lrz	1241	mov ax, word [BPB_BytsPerSec]
		1242	xor cx, cx
		1243	mov cl, byte [BPB_SecPerClus]
		1244	mul cx
		1245	shr ax, 1 ; ax = (BPB_BytsPerSec * BPB_SecPerClus)/2
		1246	mov cx, ax ; number of words to copy (count words in cluster)
795	shurf	1247	;
816	Lrz	1248	mov ah, 0x87
		1249	int 0x15 ; copy data
134	diamond	1250	test ah, ah
1	ha	1251	popa
134	diamond	1252	pop es
		1253	jnz sayerr_floppy
795	shurf	1254	; skip cluster di
134	diamond	1255	.skip:
816	Lrz	1256	mov ax, word [BPB_BytsPerSec]
		1257	xor cx, cx
		1258	mov cl, byte [BPB_SecPerClus]
		1259	mul cx
		1260	and eax, 0ffffh ; ax - count of bytes in cluster
		1261	add dword [si+8*3+2], eax
795	shurf	1262
816	Lrz	1263	mov ax, word [end_of_FAT] ; max cluster number
134	diamond	1264	pusha
		1265	; draw percentage
795	shurf	1266	; total clusters: ax
		1267	; read clusters: di
816	Lrz	1268	xchg ax, di
134	diamond	1269	mov cx, 100
		1270	mul cx
816	Lrz	1271	div di
134	diamond	1272	aam
		1273	xchg al, ah
		1274	add ax, '00'
465	serge	1275	mov si, pros
134	diamond	1276	cmp [si], ax
		1277	jz @f
		1278	mov [si], ax
1	ha	1279	call printplain
134	diamond	1280	@@:
1	ha	1281	popa
134	diamond	1282	inc di
816	Lrz	1283	cmp di, word [end_of_FAT] ; max number of cluster
134	diamond	1284	jnz .read_loop
816	Lrz	1285	pop bx ; clear stack
134	diamond	1286
709	diamond	1287	ok_sys_on_floppy:
514	diamond	1288	mov si, backspace2
1	ha	1289	call printplain
514	diamond	1290	mov si, okt
1	ha	1291	call printplain
514	diamond	1292	no_sys_on_floppy:
		1293	xor ax, ax ; reset drive
		1294	xor dx, dx
1	ha	1295	int 0x13
514	diamond	1296	mov dx, 0x3f2 ; floppy motor off
		1297	mov al, 0
		1298	out dx, al
1	ha	1299
2010	serge	1300	if defined extended_primary_loader
		1301	cmp [boot_dev], 1
		1302	jne no_sys_from_primary
		1303	; load kolibri.img using callback from primary loader
		1304	and word [movedesc + 24 + 2], 0
		1305	mov byte [movedesc + 24 + 4], 10h
		1306	; read in blocks of 64K until file is fully loaded
		1307	mov ax, 1
		1308	.repeat:
		1309	mov di, image_file_struct
		1310	call [bootcallback]
		1311	push cs
		1312	pop ds
		1313	push cs
		1314	pop es
		1315	cmp bx, 1
		1316	ja sayerr_badsect
		1317	push bx
		1318	mov si, movedesc
		1319	and word [si + 16 + 2], 0
		1320	mov byte [si + 16 + 4], 4
		1321	mov ah, 87h
		1322	mov cx, 8000h
		1323	int 15h
		1324	pop bx
		1325	test ah, ah
		1326	jnz sayerr_memmove
		1327	inc byte [si + 24 + 4]
		1328	test bx, bx
		1329	jz no_sys_from_primary
		1330	mov ax, 2
		1331	jmp .repeat
		1332	no_sys_from_primary:
		1333	end if
1	ha	1334
		1335	; SET GRAPHICS
		1336
514	diamond	1337	xor ax, ax
		1338	mov es, ax
164	serge	1339
514	diamond	1340	mov ax, [es:0x9008] ; vga & 320x200
		1341	mov bx, ax
		1342	cmp ax, 0x13
1	ha	1343	je setgr
514	diamond	1344	cmp ax, 0x12
1	ha	1345	je setgr
514	diamond	1346	mov ax, 0x4f02 ; Vesa
412	serge	1347	setgr:
1	ha	1348	int 0x10
514	diamond	1349	test ah, ah
		1350	mov si, fatalsel
713	Lrz	1351	jnz v_mode_error
1	ha	1352	; set mode 0x12 graphics registers:
514	diamond	1353	cmp bx, 0x12
1	ha	1354	jne gmok2
		1355
514	diamond	1356	mov al, 0x05
		1357	mov dx, 0x03ce
40	halyavin	1358	push dx
514	diamond	1359	out dx, al ; select GDC mode register
		1360	mov al, 0x02
		1361	inc dx
		1362	out dx, al ; set write mode 2
1	ha	1363
514	diamond	1364	mov al, 0x02
		1365	mov dx, 0x03c4
		1366	out dx, al ; select VGA sequencer map mask register
		1367	mov al, 0x0f
		1368	inc dx
		1369	out dx, al ; set mask for all planes 0-3
1	ha	1370
514	diamond	1371	mov al, 0x08
		1372	pop dx
		1373	out dx, al ; select GDC bit mask register
1	ha	1374	; for writes to 0x03cf
412	serge	1375	gmok2:
76	mario79	1376	push ds
514	diamond	1377	pop es

Subversion Repositories Kolibri OS

(root)/kernel/branches/Kolibri-acpi/boot/bootcode.inc @ 5201 – Rev 2434