en:docs:dos:api:int21:39

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en:docs:dos:api:int21:39 [2025/07/12 15:34] – prokusheven:docs:dos:api:int21:39 [2025/07/12 16:20] (current) – prokushev
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 ===== Input ===== ===== Input =====
  
-        AH = 39h +  * AH = 39h 
-        DS:DX -> ASCIZ pathname+  * DS:DX -> ASCIZ pathname (maximum length 67 or 260 characters)
  
 ===== Return ===== ===== Return =====
  
- CF clear if successful +  * CF clear if successful 
-            AX destroyed +    * AX destroyed 
-        CF set on error +  * CF set on error 
-            AX = error code (03h,05h) (see #01680 at AH=59h/BX=0000h)+    * AX = error code (03h,05h) (see #01680 at AH=59h/BX=0000h)
  
 ===== Notes ===== ===== Notes =====
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 DOS 2.x-3.3 allow the creation of a directory sufficiently deep that it is not possible to make that directory the current directory because the path would exceed 64 characters DOS 2.x-3.3 allow the creation of a directory sufficiently deep that it is not possible to make that directory the current directory because the path would exceed 64 characters
 +
 +DOS 4+ checks for 67 path length (64 + driveletter + ':" + '\')
 +
 +OS/2 2.0+ MVDM checks for 260 path length (257 + driveletter + ':" + '\')
                      
 under the FlashTek X-32 DOS extender, the pointer is in DS:EDX under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
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 ===== See also ===== ===== See also =====
  
-AH=[[en:docs:dos:api:int21:3a|3Ah]],AH=[[en:docs:dos:api:int21:3b|3Bh]],AH=[[en:docs:dos:api:int21:6d|6Dh]],AX=[[en:docs:dos:api:int21:71:39|7139h]],AX=[[en:docs:dos:api:int21:43:ff|43FFh]]/BP=5053h +AH=[[en:docs:dos:api:int21:3a|3Ah - Remove directory]],AH=[[en:docs:dos:api:int21:3b|3Bh - Change directory]],AH=[[en:docs:dos:api:int21:6d|6Dh]],AX=[[en:docs:dos:api:int21:71:39|7139h - LFN Create directory]],AX=[[en:docs:dos:api:int21:43:ff|43FFh - LFN (bare DOS) Create directory]]/BP=5053h 
- INT 2F/AX=1103h,INT 60/DI=0511h+ INT 2F/AX=1103h
  
 ===== Note ===== ===== Note =====