WebSVN – Kolibri OS – Diff – /kernel/trunk/sec_loader/trunk/loader.asm


; Copyright (c) 2008-2009, 
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
;       * Redistributions of source code must retain the above copyright
;       notice, this list of conditions and the following disclaimer.
;       * Redistributions in binary form must reproduce the above copyright
;       notice, this list of conditions and the following disclaimer in the
;       documentation and/or other materials provided with the distribution.
;       * Neither the name of the  nor the
;       names of its contributors may be used to endorse or promote products
;       derived from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY Alexey Teplov nickname  ''AS IS'' AND ANY
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;*****************************************************************************
 
;start of the project 13.02.2008 year.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;Secondary Loader copyright Alexey Teplov nickname 
;if you need log preproc
;/////////////
;include 'listing.inc'
;enable listing
;////////////
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;start of code:                                                               ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
use16
                  org   0x0
        jmp     start
include 'sl_equ.inc'            ; в файле размещены все equ предопределения
include 'boot_st.inc'
include 'debug_msg.inc'         ;here is message from debug
include 'parse_dat.inc'
include 'sl_proc.inc'
include 'parse.inc'
include 'parse_loader.inc'
include 'parse_any.inc'
include 'parse_def_sect.inc'
include 'parse_err.inc'
 
file_data  dw 0x0,ini_data_  ;формат: смещение: сегмент т.к. используется les
size_data  dw 16 ;16 блоков по 4 кб т.е предел до 64 кб
name_ini_f db 'kord/startos.ini',0 
 
;////////////
loader_callback dd ?
load_drive dw ?
load_ft    dw ?
;Start code
 
start:
; Save far pointer to callback procedure, ds:si is point
        mov     word [cs:loader_callback], si
        mov     word [cs:loader_callback+2], ds
; Save type of drive
        mov     word [cs:load_drive], ax
; Save type of FT
        mov     word [cs:load_ft], bx
; set up stack
        mov     ax, cs
        mov     ss, ax
        xor     sp, sp
; set up segment registers
        mov     ds, ax
        mov     es, ax
; just to be sure: force DF=0, IF=1
        cld
        sti
 
; set videomode
        mov     ax, 3
        int     0x10
 
        mov     si, version
        call    printplain
        mov     al, '#'
        mov     cx, 80
;input cx=size al=char будет вывден символ сколько раз указано в cx
@@:
        call    putchar
        loop    @b
 
  if DEBUG
        pushad
        mov     ax, cs
        shl     eax, 4  ; в десятичной системе  адрес сегмента
        mov     cx, 0xa
        mov     di, cseg_msg
        call    decode
;***************
        mov     si, cseg_msg
        call    printplain
        popad
  end if
 
 
  if DEBUG
        mov     si, stack_msg
        call    printplain
  end if
 
; Require 586 or higher processor (cpuid and rdtsc,rdmsr/wrmsr commands)
; install int 6 (#UD) handler
        xor     bx, bx
        mov     ds, bx
        push    word [bx+6*4+2]
        push    word [bx+6*4]
        mov     word [bx+6*4], ud16
        mov     word [bx+6*4+2], cs
; issue CPUID command
        xor     eax, eax        ; N.B.: will cause #UD before 386
        cpuid                   ; N.B.: will cause #UD before later 486s
        test    eax, eax
        jz      cpubad
; get processor features
        xor     eax, eax
        inc     ax
        cpuid
        test    dl, 10h         ; CPUID[1].edx[4] - TSC support
        jz      cpubad
        test    dl, 20h         ; CPUID[1].edx[5] - MSR support
        jnz     cpugood
 
ud16:   ; #UD handler, called if processor did not recognize some commands
cpubad:
; restore int 6 (#UD) handler
        pop     word [6*4]
        pop     word [6*4+2]
; say error
        push    cs
        pop     ds
        mov     si, badprocessor
sayerr:
        call    printplain
        jmp     $
 
cpugood:
; restore int 6 (#UD) handler
        pop     dword [6*4]
        push    cs
        pop     ds
 
; set up esp
        movzx   esp, sp
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; init memory
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 
 
 
; Load  startos.ini
        mov     cx, loop_read_startos_file      ;кол-во попыток чтения файла конфигурации startos.ini
align 4
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  Load startos.ini                                                           ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
load_startos_file:
 
        xor     ax, ax
        mov     di, file_data
        inc     ax        ;function 1 - read file
        push    cx
        call    far dword [loader_callback]
        pop     cx
        push    cs
        push    cs
        pop     ds
        pop     es
 
        test    bx, bx
        jz      check_conf_file
        dec     cx
        jnz     load_startos_file
 
;SET DEFAULT Not use ini file 
error_ini:
        mov     si, error_ini_f1    ;Error: cannot load ini file, buffer is full
        dec     bx
        jz      err_show_ini
        mov     si, error_ini_f2    ;Error: ini file not found
        dec     bx
        jz      err_show_ini
        mov     si, error_ini_f3    ;Error: cannot read ini file
        dec     bx
        jz      err_show_ini
 
        mov     si, error_ini_nf    ;Error: unrecognized error when loading ini file
err_show_ini:
        call    printplain
        mov     si, error_ini_common
        call    printplain
; wait for keypress
        xor     ax, ax
        int     16h
 
ini_loaded:
 
        jmp     $
 
align 4
check_conf_file:
;Check config file in current dir
        push    ax      ;save size file
  if DEBUG
        mov     cx, 0x0a
        mov     di, show_decode
        call    decode
;Show size
        mov     si, show_string
        call    printplain
  end if
 
 
;Show message
        mov     si, load_ini
        call    printplain
 
        pop     cx      ;restore size file
use_parse               ;parsing startos.ini
;
        jmp     ini_loaded
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;
;DATA
;;;;;;;;;;;;;;;;;;;;;;;;;;;
; table for move to extended memory (int 15h, ah=87h)
align 4
table_15_87:
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
 
        db      0xff,0xff
        db      0x0,0x10 
        db      0x00,0x93,0x0,0x0
 
        db      0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0
 
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
        db      0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
 
fat12_buffer:
.BS_jmpBoot             db 0x90,0x90,0x90       ;3 байта   NOP инструкция - ничего не делать 
.BS_OEMName             db 'K SyS 64'   ;8 байт
.BPB_BytsPerSec         dw      512     ;кол-во байтов в секторе может быть любое 512 1024 2048 4096 2 байта
.BPB_SecPerClus         db      0x1     ;кол-во секторов в кластере
.BPB_RsvdSecCnt         dw      0x1     ;для FAt12/16 только 1, для FAT32 обычно 32     
.BPB_NumFATs            db      0x1     ;кол-во фат таблиц, на тот случай если будет сброс на дискету образа рам диска
.BPB_RootEntCnt         dw      512     ;для мак совместимости с fat16 
.BPB_TotSec16           dw      0x0     ;кл-во секторов
.BPB_Media              db      0xF0
.BPB_FATSz16            dw      0x0
.BPB_SecPerTrk          dw      0x0     ;содержит геометрию диска для RAMFS на как бы без разницы, пока пустое поле, позже внести реальные значения.
.BPB_NumHeads           dw      0x0
.BPB_HiddSec            dd      0x0     ;кол-во скрытых секторов
.BPB_TotSec32           dd      0x0
.BS_DrvNum              db      'R'     ;от слова RAM
.BS_Reserved1           db      0x0
.BS_BootSig             db      0x29
.BS_VolID               db      'RFKS'  
.BS_VolLab              db      'RAM DISK FS'   ;11 символов
.BS_FilSysType          db      'FAT12   '      ;8 символов
;62 байта структура fat12.
db (512-($-fat12_buffer))dup(0x90)
 
 
 
;структура для дирректории fat
struc FAT_32_entry ;Byte Directory Entry Structure
{
.DIR_Name       rb      11
.DIR_Attr       db      ?
.DIR_NTRes      db      ?
.DIR_CrtTimeTenth db    ?
.DIR_CrtTime    dw      ?
.DIR_CrtDate    dw      ?
.DIR_LstAccDate dw      ?
.DIR_FstClusHI  dw      ?
.DIR_WrtTime    dw      ?
.DIR_WrtDate    dw      ?
.DIR_FstClusLO  dw      ?
.DIR_FileSize   dd      ?
 
 
}
;Тут будут распологатсья данные, которые затруднительно распологать в стековой области....
;;;
;timer
shot_name_fat   rb      11      ;временный буфер для fat12, в нем храняться имена файлов приведенные к правилам FAT /* вдальнейшем перенести в стэк
 
if DEBUG
                rb      1       ;нужен для отладки и вывода имени файла после преобразования
dest_name_fat   db      24 dup('_');12
db      0x0
end if
 
value_timeout   rw      1       ;value to timeout
old_timer       rd      1       ;старое значение вектора таймера
start_timer     rd      1       ;значение таймера
timer_          rd      1       ;новое значение вектора таймера т.е. SL
start_stack     rw      1       ;save stack 
save_bp_from_timer rw   1       ;save bp from timer

Rev 2288	Rev 3539
1	; Copyright (c) 2008-2009,	1	; Copyright (c) 2008-2009,
2	; All rights reserved.	2	; All rights reserved.
3	;	3	;
4	; Redistribution and use in source and binary forms, with or without	4	; Redistribution and use in source and binary forms, with or without
5	; modification, are permitted provided that the following conditions are met:	5	; modification, are permitted provided that the following conditions are met:
6	; * Redistributions of source code must retain the above copyright	6	; * Redistributions of source code must retain the above copyright
7	; notice, this list of conditions and the following disclaimer.	7	; notice, this list of conditions and the following disclaimer.
8	; * Redistributions in binary form must reproduce the above copyright	8	; * Redistributions in binary form must reproduce the above copyright
9	; notice, this list of conditions and the following disclaimer in the	9	; notice, this list of conditions and the following disclaimer in the
10	; documentation and/or other materials provided with the distribution.	10	; documentation and/or other materials provided with the distribution.
11	; * Neither the name of the nor the	11	; * Neither the name of the nor the
12	; names of its contributors may be used to endorse or promote products	12	; names of its contributors may be used to endorse or promote products
13	; derived from this software without specific prior written permission.	13	; derived from this software without specific prior written permission.
14	;	14	;
15	; THIS SOFTWARE IS PROVIDED BY Alexey Teplov nickname ''AS IS'' AND ANY	15	; THIS SOFTWARE IS PROVIDED BY Alexey Teplov nickname ''AS IS'' AND ANY
16	; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED	16	; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17	; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE	17	; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18	; DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY	18	; DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
19	; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES	19	; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20	; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;	20	; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21	; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND	21	; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22	; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	22	; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23	; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS	23	; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24	; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	24	; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25	;*****************************************************************************	25	;*****************************************************************************
26		26
27	;start of the project 13.02.2008 year.	27	;start of the project 13.02.2008 year.
28	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	28	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
29	;Secondary Loader copyright Alexey Teplov nickname	29	;Secondary Loader copyright Alexey Teplov nickname
30	;if you need log preproc	30	;if you need log preproc
31	;/////////////	31	;/////////////
32	;include 'listing.inc'	32	;include 'listing.inc'
33	;enable listing	33	;enable listing
34	;////////////	34	;////////////
35	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	35	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
36	;start of code: ;	36	;start of code: ;
37	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	37	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
38	use16	38	use16
39	org 0x0	39	org 0x0
40	jmp start	40	jmp start
41	include 'sl_equ.inc' ; â ôàéëå ðàçìåùåíû âñå equ ïðåäîïðåäåëåíèÿ	41	include 'sl_equ.inc' ; в файле размещены все equ предопределения
42	include 'boot_st.inc'	42	include 'boot_st.inc'
43	include 'debug_msg.inc' ;here is message from debug	43	include 'debug_msg.inc' ;here is message from debug
44	include 'parse_dat.inc'	44	include 'parse_dat.inc'
45	include 'sl_proc.inc'	45	include 'sl_proc.inc'
46	include 'parse.inc'	46	include 'parse.inc'
47	include 'parse_loader.inc'	47	include 'parse_loader.inc'
48	include 'parse_any.inc'	48	include 'parse_any.inc'
49	include 'parse_def_sect.inc'	49	include 'parse_def_sect.inc'
50	include 'parse_err.inc'	50	include 'parse_err.inc'
51		51
52	file_data dw 0x0,ini_data_ ;ôîðìàò: ñìåùåíèå: ñåãìåíò ò.ê. èñïîëüçóåòñÿ les	52	file_data dw 0x0,ini_data_ ;формат: смещение: сегмент т.к. используется les
53	size_data dw 16 ;16 áëîêîâ ïî 4 êá ò.å ïðåäåë äî 64 êá	53	size_data dw 16 ;16 блоков по 4 кб т.е предел до 64 кб
54	name_ini_f db 'kord/startos.ini',0	54	name_ini_f db 'kord/startos.ini',0
55		55
56	;////////////	56	;////////////
57	loader_callback dd ?	57	loader_callback dd ?
58	load_drive dw ?	58	load_drive dw ?
59	load_ft dw ?	59	load_ft dw ?
60	;Start code	60	;Start code
61		61
62	start:	62	start:
63	; Save far pointer to callback procedure, ds:si is point	63	; Save far pointer to callback procedure, ds:si is point
64	mov word [cs:loader_callback], si	64	mov word [cs:loader_callback], si
65	mov word [cs:loader_callback+2], ds	65	mov word [cs:loader_callback+2], ds
66	; Save type of drive	66	; Save type of drive
67	mov word [cs:load_drive], ax	67	mov word [cs:load_drive], ax
68	; Save type of FT	68	; Save type of FT
69	mov word [cs:load_ft], bx	69	mov word [cs:load_ft], bx
70	; set up stack	70	; set up stack
71	mov ax, cs	71	mov ax, cs
72	mov ss, ax	72	mov ss, ax
73	xor sp, sp	73	xor sp, sp
74	; set up segment registers	74	; set up segment registers
75	mov ds, ax	75	mov ds, ax
76	mov es, ax	76	mov es, ax
77	; just to be sure: force DF=0, IF=1	77	; just to be sure: force DF=0, IF=1
78	cld	78	cld
79	sti	79	sti
80		80
81	; set videomode	81	; set videomode
82	mov ax, 3	82	mov ax, 3
83	int 0x10	83	int 0x10
84		84
85	mov si, version	85	mov si, version
86	call printplain	86	call printplain
87	mov al, '#'	87	mov al, '#'
88	mov cx, 80	88	mov cx, 80
89	;input cx=size al=char áóäåò âûâäåí ñèìâîë ñêîëüêî ðàç óêàçàíî â cx	89	;input cx=size al=char будет вывден символ сколько раз указано в cx
90	@@:	90	@@:
91	call putchar	91	call putchar
92	loop @b	92	loop @b
93		93
94	if DEBUG	94	if DEBUG
95	pushad	95	pushad
96	mov ax, cs	96	mov ax, cs
97	shl eax, 4 ; â äåñÿòè÷íîé ñèñòåìå àäðåñ ñåãìåíòà	97	shl eax, 4 ; в десятичной системе адрес сегмента
98	mov cx, 0xa	98	mov cx, 0xa
99	mov di, cseg_msg	99	mov di, cseg_msg
100	call decode	100	call decode
101	;***************	101	;***************
102	mov si, cseg_msg	102	mov si, cseg_msg
103	call printplain	103	call printplain
104	popad	104	popad
105	end if	105	end if
106		106
107		107
108	if DEBUG	108	if DEBUG
109	mov si, stack_msg	109	mov si, stack_msg
110	call printplain	110	call printplain
111	end if	111	end if
112		112
113	; Require 586 or higher processor (cpuid and rdtsc,rdmsr/wrmsr commands)	113	; Require 586 or higher processor (cpuid and rdtsc,rdmsr/wrmsr commands)
114	; install int 6 (#UD) handler	114	; install int 6 (#UD) handler
115	xor bx, bx	115	xor bx, bx
116	mov ds, bx	116	mov ds, bx
117	push word [bx+6*4+2]	117	push word [bx+6*4+2]
118	push word [bx+6*4]	118	push word [bx+6*4]
119	mov word [bx+6*4], ud16	119	mov word [bx+6*4], ud16
120	mov word [bx+6*4+2], cs	120	mov word [bx+6*4+2], cs
121	; issue CPUID command	121	; issue CPUID command
122	xor eax, eax ; N.B.: will cause #UD before 386	122	xor eax, eax ; N.B.: will cause #UD before 386
123	cpuid ; N.B.: will cause #UD before later 486s	123	cpuid ; N.B.: will cause #UD before later 486s
124	test eax, eax	124	test eax, eax
125	jz cpubad	125	jz cpubad
126	; get processor features	126	; get processor features
127	xor eax, eax	127	xor eax, eax
128	inc ax	128	inc ax
129	cpuid	129	cpuid
130	test dl, 10h ; CPUID[1].edx[4] - TSC support	130	test dl, 10h ; CPUID[1].edx[4] - TSC support
131	jz cpubad	131	jz cpubad
132	test dl, 20h ; CPUID[1].edx[5] - MSR support	132	test dl, 20h ; CPUID[1].edx[5] - MSR support
133	jnz cpugood	133	jnz cpugood
134		134
135	ud16: ; #UD handler, called if processor did not recognize some commands	135	ud16: ; #UD handler, called if processor did not recognize some commands
136	cpubad:	136	cpubad:
137	; restore int 6 (#UD) handler	137	; restore int 6 (#UD) handler
138	pop word [6*4]	138	pop word [6*4]
139	pop word [6*4+2]	139	pop word [6*4+2]
140	; say error	140	; say error
141	push cs	141	push cs
142	pop ds	142	pop ds
143	mov si, badprocessor	143	mov si, badprocessor
144	sayerr:	144	sayerr:
145	call printplain	145	call printplain
146	jmp $	146	jmp $
147		147
148	cpugood:	148	cpugood:
149	; restore int 6 (#UD) handler	149	; restore int 6 (#UD) handler
150	pop dword [6*4]	150	pop dword [6*4]
151	push cs	151	push cs
152	pop ds	152	pop ds
153		153
154	; set up esp	154	; set up esp
155	movzx esp, sp	155	movzx esp, sp
156		156
157	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	157	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
158	; init memory	158	; init memory
159	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	159	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
160		160
161		161
162		162
163		163
164	; Load startos.ini	164	; Load startos.ini
165	mov cx, loop_read_startos_file ;êîë-âî ïîïûòîê ÷òåíèÿ ôàéëà êîíôèãóðàöèè startos.ini	165	mov cx, loop_read_startos_file ;кол-во попыток чтения файла конфигурации startos.ini
166	align 4	166	align 4
167	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	167	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
168	; Load startos.ini ;	168	; Load startos.ini ;
169	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	169	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
170	load_startos_file:	170	load_startos_file:
171		171
172	xor ax, ax	172	xor ax, ax
173	mov di, file_data	173	mov di, file_data
174	inc ax ;function 1 - read file	174	inc ax ;function 1 - read file
175	push cx	175	push cx
176	call far dword [loader_callback]	176	call far dword [loader_callback]
177	pop cx	177	pop cx
178	push cs	178	push cs
179	push cs	179	push cs
180	pop ds	180	pop ds
181	pop es	181	pop es
182		182
183	test bx, bx	183	test bx, bx
184	jz check_conf_file	184	jz check_conf_file
185	dec cx	185	dec cx
186	jnz load_startos_file	186	jnz load_startos_file
187		187
188	;SET DEFAULT Not use ini file	188	;SET DEFAULT Not use ini file
189	error_ini:	189	error_ini:
190	mov si, error_ini_f1 ;Error: cannot load ini file, buffer is full	190	mov si, error_ini_f1 ;Error: cannot load ini file, buffer is full
191	dec bx	191	dec bx
192	jz err_show_ini	192	jz err_show_ini
193	mov si, error_ini_f2 ;Error: ini file not found	193	mov si, error_ini_f2 ;Error: ini file not found
194	dec bx	194	dec bx
195	jz err_show_ini	195	jz err_show_ini
196	mov si, error_ini_f3 ;Error: cannot read ini file	196	mov si, error_ini_f3 ;Error: cannot read ini file
197	dec bx	197	dec bx
198	jz err_show_ini	198	jz err_show_ini
199		199
200	mov si, error_ini_nf ;Error: unrecognized error when loading ini file	200	mov si, error_ini_nf ;Error: unrecognized error when loading ini file
201	err_show_ini:	201	err_show_ini:
202	call printplain	202	call printplain
203	mov si, error_ini_common	203	mov si, error_ini_common
204	call printplain	204	call printplain
205	; wait for keypress	205	; wait for keypress
206	xor ax, ax	206	xor ax, ax
207	int 16h	207	int 16h
208		208
209	ini_loaded:	209	ini_loaded:
210		210
211	jmp $	211	jmp $
212		212
213	align 4	213	align 4
214	check_conf_file:	214	check_conf_file:
215	;Check config file in current dir	215	;Check config file in current dir
216	push ax ;save size file	216	push ax ;save size file
217	if DEBUG	217	if DEBUG
218	mov cx, 0x0a	218	mov cx, 0x0a
219	mov di, show_decode	219	mov di, show_decode
220	call decode	220	call decode
221	;Show size	221	;Show size
222	mov si, show_string	222	mov si, show_string
223	call printplain	223	call printplain
224	end if	224	end if
225		225
226		226
227	;Show message	227	;Show message
228	mov si, load_ini	228	mov si, load_ini
229	call printplain	229	call printplain
230		230
231	pop cx ;restore size file	231	pop cx ;restore size file
232	use_parse ;parsing startos.ini	232	use_parse ;parsing startos.ini
233	;	233	;
234	jmp ini_loaded	234	jmp ini_loaded
235		235
236	;;;;;;;;;;;;;;;;;;;;;;;;;;;	236	;;;;;;;;;;;;;;;;;;;;;;;;;;;
237	;DATA	237	;DATA
238	;;;;;;;;;;;;;;;;;;;;;;;;;;;	238	;;;;;;;;;;;;;;;;;;;;;;;;;;;
239	; table for move to extended memory (int 15h, ah=87h)	239	; table for move to extended memory (int 15h, ah=87h)
240	align 4	240	align 4
241	table_15_87:	241	table_15_87:
242	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	242	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
243	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	243	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
244		244
245	db 0xff,0xff	245	db 0xff,0xff
246	db 0x0,0x10	246	db 0x0,0x10
247	db 0x00,0x93,0x0,0x0	247	db 0x00,0x93,0x0,0x0
248		248
249	db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0	249	db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0
250		250
251	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	251	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
252	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	252	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
253	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	253	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
254	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0	254	db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
255		255
256	fat12_buffer:	256	fat12_buffer:
257	.BS_jmpBoot db 0x90,0x90,0x90 ;3 áàéòà NOP èíñòðóêöèÿ - íè÷åãî íå äåëàòü	257	.BS_jmpBoot db 0x90,0x90,0x90 ;3 байта NOP инструкция - ничего не делать
258	.BS_OEMName db 'K SyS 64' ;8 áàéò	258	.BS_OEMName db 'K SyS 64' ;8 байт
259	.BPB_BytsPerSec dw 512 ;êîë-âî áàéòîâ â ñåêòîðå ìîæåò áûòü ëþáîå 512 1024 2048 4096 2 áàéòà	259	.BPB_BytsPerSec dw 512 ;кол-во байтов в секторе может быть любое 512 1024 2048 4096 2 байта
260	.BPB_SecPerClus db 0x1 ;êîë-âî ñåêòîðîâ â êëàñòåðå	260	.BPB_SecPerClus db 0x1 ;кол-во секторов в кластере
261	.BPB_RsvdSecCnt dw 0x1 ;äëÿ FAt12/16 òîëüêî 1, äëÿ FAT32 îáû÷íî 32	261	.BPB_RsvdSecCnt dw 0x1 ;для FAt12/16 только 1, для FAT32 обычно 32
262	.BPB_NumFATs db 0x1 ;êîë-âî ôàò òàáëèö, íà òîò ñëó÷àé åñëè áóäåò ñáðîñ íà äèñêåòó îáðàçà ðàì äèñêà	262	.BPB_NumFATs db 0x1 ;кол-во фат таблиц, на тот случай если будет сброс на дискету образа рам диска
263	.BPB_RootEntCnt dw 512 ;äëÿ ìàê ñîâìåñòèìîñòè ñ fat16	263	.BPB_RootEntCnt dw 512 ;для мак совместимости с fat16
264	.BPB_TotSec16 dw 0x0 ;êë-âî ñåêòîðîâ	264	.BPB_TotSec16 dw 0x0 ;кл-во секторов
265	.BPB_Media db 0xF0	265	.BPB_Media db 0xF0
266	.BPB_FATSz16 dw 0x0	266	.BPB_FATSz16 dw 0x0
267	.BPB_SecPerTrk dw 0x0 ;ñîäåðæèò ãåîìåòðèþ äèñêà äëÿ RAMFS íà êàê áû áåç ðàçíèöû, ïîêà ïóñòîå ïîëå, ïîçæå âíåñòè ðåàëüíûå çíà÷åíèÿ.	267	.BPB_SecPerTrk dw 0x0 ;содержит геометрию диска для RAMFS на как бы без разницы, пока пустое поле, позже внести реальные значения.
268	.BPB_NumHeads dw 0x0	268	.BPB_NumHeads dw 0x0
269	.BPB_HiddSec dd 0x0 ;êîë-âî ñêðûòûõ ñåêòîðîâ	269	.BPB_HiddSec dd 0x0 ;кол-во скрытых секторов
270	.BPB_TotSec32 dd 0x0	270	.BPB_TotSec32 dd 0x0
271	.BS_DrvNum db 'R' ;îò ñëîâà RAM	271	.BS_DrvNum db 'R' ;от слова RAM
272	.BS_Reserved1 db 0x0	272	.BS_Reserved1 db 0x0
273	.BS_BootSig db 0x29	273	.BS_BootSig db 0x29
274	.BS_VolID db 'RFKS'	274	.BS_VolID db 'RFKS'
275	.BS_VolLab db 'RAM DISK FS' ;11 ñèìâîëîâ	275	.BS_VolLab db 'RAM DISK FS' ;11 символов
276	.BS_FilSysType db 'FAT12 ' ;8 ñèìâîëîâ	276	.BS_FilSysType db 'FAT12 ' ;8 символов
277	;62 áàéòà ñòðóêòóðà fat12.	277	;62 байта структура fat12.
278	db (512-($-fat12_buffer))dup(0x90)	278	db (512-($-fat12_buffer))dup(0x90)
279		279
280		280
281		281
282	;ñòðóêòóðà äëÿ äèððåêòîðèè fat	282	;структура для дирректории fat
283	struc FAT_32_entry ;Byte Directory Entry Structure	283	struc FAT_32_entry ;Byte Directory Entry Structure
284	{	284	{
285	.DIR_Name rb 11	285	.DIR_Name rb 11
286	.DIR_Attr db ?	286	.DIR_Attr db ?
287	.DIR_NTRes db ?	287	.DIR_NTRes db ?
288	.DIR_CrtTimeTenth db ?	288	.DIR_CrtTimeTenth db ?
289	.DIR_CrtTime dw ?	289	.DIR_CrtTime dw ?
290	.DIR_CrtDate dw ?	290	.DIR_CrtDate dw ?
291	.DIR_LstAccDate dw ?	291	.DIR_LstAccDate dw ?
292	.DIR_FstClusHI dw ?	292	.DIR_FstClusHI dw ?
293	.DIR_WrtTime dw ?	293	.DIR_WrtTime dw ?
294	.DIR_WrtDate dw ?	294	.DIR_WrtDate dw ?
295	.DIR_FstClusLO dw ?	295	.DIR_FstClusLO dw ?
296	.DIR_FileSize dd ?	296	.DIR_FileSize dd ?
297		297
298		298
299	}	299	}
300	;Òóò áóäóò ðàñïîëîãàòñüÿ äàííûå, êîòîðûå çàòðóäíèòåëüíî ðàñïîëîãàòü â ñòåêîâîé îáëàñòè....	300	;Тут будут распологатсья данные, которые затруднительно распологать в стековой области....
301	;;;	301	;;;
302	;timer	302	;timer
303	shot_name_fat rb 11 ;âðåìåííûé áóôåð äëÿ fat12, â íåì õðàíÿòüñÿ èìåíà ôàéëîâ ïðèâåäåííûå ê ïðàâèëàì FAT /* âäàëüíåéøåì ïåðåíåñòè â ñòýê	303	shot_name_fat rb 11 ;временный буфер для fat12, в нем храняться имена файлов приведенные к правилам FAT /* вдальнейшем перенести в стэк
304		304
305	if DEBUG	305	if DEBUG
306	rb 1 ;íóæåí äëÿ îòëàäêè è âûâîäà èìåíè ôàéëà ïîñëå ïðåîáðàçîâàíèÿ	306	rb 1 ;нужен для отладки и вывода имени файла после преобразования
307	dest_name_fat db 24 dup('_');12	307	dest_name_fat db 24 dup('_');12
308	db 0x0	308	db 0x0
309	end if	309	end if
310		310
311	value_timeout rw 1 ;value to timeout	311	value_timeout rw 1 ;value to timeout
312	old_timer rd 1 ;ñòàðîå çíà÷åíèå âåêòîðà òàéìåðà	312	old_timer rd 1 ;старое значение вектора таймера
313	start_timer rd 1 ;çíà÷åíèå òàéìåðà	313	start_timer rd 1 ;значение таймера
314	timer_ rd 1 ;íîâîå çíà÷åíèå âåêòîðà òàéìåðà ò.å. SL	314	timer_ rd 1 ;новое значение вектора таймера т.е. SL
315	start_stack rw 1 ;save stack	315	start_stack rw 1 ;save stack
316	save_bp_from_timer rw 1 ;save bp from timer	316	save_bp_from_timer rw 1 ;save bp from timer

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(root)/kernel/trunk/sec_loader/trunk/loader.asm – Rev 2288 → 3539