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====== Int 21H, AH=47H ======

===== Version =====

2 and higher

===== Brief =====

"CWD" - GET CURRENT DIRECTORY

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


===== Input =====

  * AH = 47h
  * DL = drive number (00h = default, 01h = A:, etc)
  * DS:SI -> 64-byte buffer for ASCIZ pathname

===== Return =====

  * CF clear if successful
    * AX = 0100h (undocumented)
  * CF set on error
    * AX = error code (0Fh) (see #01680 at AH=59h/BX=0000h)

===== Notes =====

the returned path does not include a drive or the initial backslash

many Microsoft products for Windows rely on AX being 0100h on success

under the FlashTek X-32 DOS extender, the buffer pointer is in DS:ESI
          
===== See also =====

AH=[[en:docs:dos:api:int21:19|19h]],AH=[[en:docs:dos:api:int21:3b|3Bh]],AH=[[en:docs:dos:api:int21:71|71h]],INT 15/AX=DE25h

===== Note =====

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

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