function resets the fixed disk controller recalibrates attached drives moves the read/write arm to cylinder 0 prepares subsequent disk I/O INT 13H (0x13) Function 0DH (0x0D or 13) Reset fixed disk system 0EH (0x0E or 14) Read sector buffer

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INT 13H (0x13)

Function 0DH (0x0D or 13) >> Reset fixed disk system

Call with:AH = 0DH
DL = drive
80H-FFH fixed disk

Returns:If function successful
Carry flag = clear
AH = 00H

If function unsuccessful
Carry flag = set
AH = status (see INT 13H Function 01H)

Comments:

This function resets the fixed disk controller, recalibrates attached drives, moves the read/write arm to cylinder 0, and prepares for subsequent disk I/O.

INT 13H (0x13)

Function 0EH (0x0E or 14) >> Read sector buffer

Call with:AH = 0EH
ES: BX = segment: offset of buffer

Returns:If function successful
Carry flag = clear

If function unsuccessful
Carry flag = set
AH = status

Comments:

This function transfers the contents of the internal sector buffer of the fixed disk adapter to the system memory. No data is read from the physical disk drive.

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Data Recovery Book
 
Chapter 1 An Overview of Data Recovery
Chapter 2 Introduction of Hard Disks
Chapter 3 Logical Approach to Disks and OS
Chapter 4 Number Systems
Chapter 5 Introduction of C Programming
Chapter 6 Introduction to Computer Basics
Chapter 7 Necessary DOS Commands
Chapter 8 Disk-BIOS Functions and Interrupts Handling With C
Chapter 9 Handling Large Hard Disks
Chapter 10 Data Recovery From Corrupted Floppy
Chapter 11 Making Backups
Chapter 12 Reading and Modifying MBR with Programming
Chapter 13 Reading and Modifying DBR with Programming
Chapter 14 Programming for “Raw File” Recovery
Chapter 15 Programming for Data Wipers
Chapter 16 Developing more Utilities for Disks
Appendix Glossary of Data Recovery Terms
 
 

 

 

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