2010-10-01 11:21:55 +02:00
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; Copyright (c) 2009, <Lrz>
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; All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions are met:
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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; * Neither the name of the <organization> nor the
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; names of its contributors may be used to endorse or promote products
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; derived from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY Alexey Teplov nickname <Lrz> ''AS IS'' AND ANY
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; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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; DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
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; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;*****************************************************************************
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2013-05-28 21:09:31 +02:00
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; Модуль парсинга - это стандартный компонент, встраиваемый во вторичный загрузчик.
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; Данный модуль позволяет стандартно произвести разбор ini файла
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; (и с использованием полученных данных ОС будет загружаться дальше).
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; В начале найдем открывающий "[" - это будет указывать на начало
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; секции. Поддерживается 1 секция это [loader], остальные секции могут иметь
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; любые имена, но они должны быть заключены в в скобки []
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2010-10-01 11:21:55 +02:00
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macro use_parse
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{
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;input cx=size of ini file
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parse_start:
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;es:di as 2000:0000 new segment
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2013-05-28 21:09:31 +02:00
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;установим указатель на загруженный блок
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2012-03-08 09:33:38 +01:00
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enter 256, 0 ;set 16 byte for current task in stack
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2010-10-01 11:21:55 +02:00
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;we are is not use bp because bp is pointer on array 16 byte
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2012-03-08 09:33:38 +01:00
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mov word [save_bp_from_timer], bp ;save point to own data array
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mov save_cx, cx ;it's placed size of ini file
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les di, dword [file_data]
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2013-05-28 21:09:31 +02:00
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;обнулим все переменные выделенные из стека
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2010-10-01 11:21:55 +02:00
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;init flag
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2012-03-08 09:33:38 +01:00
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xor ax, ax
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mov status_flag, ax
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2010-10-01 11:21:55 +02:00
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;set data size
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2013-05-28 21:09:31 +02:00
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mov info_real_mode_size, ini_data_ +0x1000 ;изменим значение занятости памяти
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2010-10-01 11:21:55 +02:00
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2013-05-28 21:09:31 +02:00
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;поиск начала блока.
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2010-10-01 11:21:55 +02:00
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;///////////check [loader]
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cld
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2012-03-08 09:33:38 +01:00
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mov ret_on_ch, .start ;set return
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mov al, byte [es:di]
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2010-10-01 11:21:55 +02:00
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push word .first_ret
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2012-03-08 09:33:38 +01:00
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cmp al, ' '
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2010-10-01 11:21:55 +02:00
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jz .first_sp_1
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jmp get_firs_sym.not_space
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.first_sp_1:
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jmp get_firs_sym.first_sp
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.start:
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call get_firs_sym ;get first symbol on new line
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2013-05-28 21:09:31 +02:00
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.first_ret: ;первый возврат
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2010-10-01 11:21:55 +02:00
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; jcxz .end_file ;.end_loader ;found or not found parametrs in section exit in section
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2012-03-08 09:33:38 +01:00
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test cx, cx
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2010-10-01 11:21:55 +02:00
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jz error.not_loader
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2012-03-08 09:33:38 +01:00
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cmp al, '['
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2010-10-01 11:21:55 +02:00
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jz .parse_loader
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jmp .start
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2013-05-28 21:09:31 +02:00
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;////// проверка на наличее секции loader
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2010-10-01 11:21:55 +02:00
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use_parse_loader
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;pause
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if DEBUG
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2012-03-08 09:33:38 +01:00
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xor ax, ax
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2010-10-01 11:21:55 +02:00
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int 16h
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end if
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2013-05-28 21:09:31 +02:00
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;////// вывод графического экрана, выбор, секции под дефолту
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2010-10-01 11:21:55 +02:00
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use_any_sec
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2013-05-28 21:09:31 +02:00
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;парсинг выбраной или дефолтной секции т.е. разбор параметров выполнение сценария
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2010-10-01 11:21:55 +02:00
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use_parse_def_sect
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;//////////////////
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;/end parse block
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;//////////////////
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;.end_bl:
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; mov cx,bx
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;
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; jmp .start
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.exit:
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; mov si,parse_ini_end
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; call printplain
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;
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;if DEBUG
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; pusha
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; mov ax,cx
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; mov cx,0x0a
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; mov di,show_db1_dec
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; mov dword[ds:di],' '
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; call decode
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;Show size
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; mov si,show_db1
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; call printplain
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;
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; popa
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;end if
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jmp $
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;///////////////////procedure //////////
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;input es:di - is pointer to date
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;cx - counter
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;return: cx - status if =0 - end of date else es:di point to first symbol on new line
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2012-03-08 09:33:38 +01:00
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}
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