中国科学院21H条(0x29或0x21)功能阳性(41)解析filename=050535.htm24h(或420x2a)得到每天最新2bh(0x2b或43或0x2c)订日期2ch(44)获得当时2dh(45或0x2d0x2e)订时间2EH(或46)集核实旗2fh(0x2f或47)获得双重课税30h的地址(0x30或48)获得MS-DOS操作系统版本多少第31H(0x31或49)和终止率(TSR)留驻地

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中国科学院21H条(0x21)

功能阳性(或0x2941)-->解析filename=050535.htm

Call with: AH = 29H
AL = flags to control parsing

Bit 0 = 1, 如果领导隔板将扫描过(不理).
= 0, 如果领导不会分离对开扫描

Bit 1 = 1,如果在驾驶身分字节循环流化床将驾驶改装只有在被指定为串熟语.

= 0, 如果在驾驶身分字节循环流化床将改装不分、如果没有驱动specifier是目前在熟语弦乐、循环流化床径场定码0(缺省)

Bit 2 = 1, 如果filename=050535.htm改良场将循环流化床只有filename=050535.htm指明了一串被熟语.

= 0, 如果filename=050535.htm改良场将循环流化床不管,如果是没有filename=050535.htm发布熟语弦乐、 循环流化床filename=050535.htm定asciiz空白.

Bit 3 = 1,如果将循环流化床场扩建改造、扩建,只有被指定的弦乐熟语.

= 0, 如果将循环流化床场扩建改造不分,如果不延长目前的熟语弦乐、循环流化床扩建定asciiz空白.

DS: SI = segment: offset of string
ES: DI = segment: offset of file control block

Returns: AL = 00H, 如果没有遇到分钟字卡,如果熟语弦外卡载跳频字,如果驾驶specifier无效

DS: SI = segment: offset of first character
after parsed filename
ES: DI = segment: offset of formatted
unopened file control block

评论:

这项功能解析文本串到各个领域档案管理块(循环流化床).

这项功能对于人物(:. ; 、 =空间+统计表)分离字符和控制字符的所有文字问候(:. ; 、 统计表空间+=<>|/"[])作为终结者字.


中国科学院21H条(0x21)

功能24h(或420x2a)-->获得每日最新

Call with: AH = 2AH

Returns: CX = year (1980 through 2099)
DH = month (1 through 12)
DL = day (1 through 31)
AL = day of the week (0 = Sunday,
1= Monday, etc.)

评论:

这一系统的功能得到为期一个月,每周日、月、年.

 

中国科学院21H条(0x21)

2bh功能(或430x2b)-->确定日期

Call with: AH = 2BH
CX = year (1980 through 2099)
DH = month (1 through 12)
DL = day (1 through 31)

Returns: AL = 00H if date set successfully
FFH if date not valid (ignored)

评论:

这项功能initializes系统时钟驱动一个具体日期,但1797时间不变.

 

中国科学院21H条(0x21)

功能2ch(0x2c或44)-->得到时间

Call with: AH = 2CH

Returns: CH = hours (0 through 23)
CL = minutes (0 through 59)
DH = seconds (0 through 59)
DL = hundredths of seconds (0 through 99)

评论:

这是用来获取系统时间从每天实时时钟驱动程序,转化为小时,分钟, 秒、红印花秒钟.

中国科学院21H条(0x21)

2dh功能(45或0x2d)-->规定时间

Call with: AH = 2DH
CH = hours (0 through 23)
CL = minutes (0 through 59)
DH = seconds (0 through 59)
DL = hundredths of seconds (0 through 99)

Returns: AL = 00H, if time set successfully
FFH, if time not valid (ignored)

评论:

这项功能initializes系统实时时钟到指定时间、分钟、二、二的百分之一. 系统日期将不受影响.


中国科学院21H条(0x21)

功能2EH(0x2e或46)-->确定核实旗

Call with: AH = 2EH
AL = 00H, if turning off verify flag
01H, if turning on verify flag
DL = 00H

Returns: Nothing

评论:

这个功能对开或轮流转的运行系统自动阅读旗--后写核实数据.失落的旗帜是客因为经过查证后--写盘操作验证放慢.

 

中国科学院21H条(0x21)

功能2fh(47或0x2f)-->得到解决双重课税

Call with: AH = 2FH

Returns: ES: BX = segment: offset of disk transfer area

评论:

这项功能获取当前磁盘地址转移循环流化床面积(双重课税)档案阅读/书写作业.

 

中国科学院21H条(0x21)

30h的功能(48或0x30)-->得到余-民政版数

Call with: AH = 30H
AL = 00H

Returns: AL = major version number (MS-DOS
3.10=3, etc.)
AH = minor version number (MS-DOS
3.10= 0AH, etc.)
BH = Original Equipment Manufacturer’s
(OEM’s) serial number (OEM-
dependent-usually 00H for IBM’s
PC-DOS, 0FFH or other values for
MS-DOS)
BL: CX = 24-bit user serial number (optional,
OEM-dependent)

评论:

它的版本有多少回报东道主余-DOS操作系统.

 

中国科学院21H条(0x21)

功能31H条(0x31或49)-->驻地率(TSR)终止及居留

Call with: AH = 31H
AL = return code
DX = amount of memory in paragraphs, to
reserve

Returns Nothing

评论:

这项功能终止执行该计划的执行,目前合格的父母回到典储备部分或全部过程,但记忆节目,使之能复盖了下一瞬时计装.这项功能应优先于中国科学院27H款使用,因为它支持政务遏制部分节目部分前缀.

Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi
Data Recovery with & without Programming


Publishers of the Book
Number of Pages
ISBN
Price of the Book


BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)





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