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====== Int 13H, AH=00H ======

===== Version =====

IBM 5150 and higher

===== Brief =====

Reset disk system

===== Family API =====

[[en:docs:fapi:DosBufReset]]

===== Input =====

  * AH = 00h
  * DL = drive (if bit 7 is set both hard disks and floppy disks reset)

===== Return =====

  * AH = status (see [[00234|status]])
    * CF clear if successful (returned AH=00h)
    * CF set on error

===== Macro =====

<code asm>
INCLUDE BIOS.INC

@DskReset
</code>

===== Notes =====

  * forces controller to recalibrate drive heads (seek to track 0)
  * for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems, both the master drive and the slave drive respond to the Reset function that is issued to either drive

===== Note =====

Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]

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