en:docs:dos:api:int21:3b

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en:docs:dos:api:int21:3b [2024/05/02 07:20] – prokusheven:docs:dos:api:int21:3b [2025/07/20 05:43] (current) – prokushev
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 ===== Family API ===== ===== Family API =====
  
 +[[en:docs:fapi:DosChDir]]
  
 ===== Input ===== ===== Input =====
  
-        AH = 3Bh +  * AH = 3Bh 
-        DS:DX -> ASCIZ pathname to become current directory (max 64 bytes)+  * DS:DX -> ASCIZ pathname to become current directory (max 64 bytes)
  
 ===== 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) (see #01680 at AH=59h/BX=0000h)+    * AX = error code (03h) (see #01680 at AH=59h/BX=0000h)
  
 ===== Notes ===== ===== Notes =====
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 changing the current directory also changes the directory in which FCB file calls operate changing the current directory also changes the directory in which FCB file calls operate
-           
-under the FlashTek X-32 DOS extender, the pointer is in DS:EDX 
                      
 ===== See also ===== ===== See also =====
  
-AH=[[en:docs:dos:api:int21:47|47h]],AX=[[en:docs:dos:api:int21:71:3b|713Bh]],INT 2F/AX=1105h+AH=[[en:docs:dos:api:int21:47|47h]],AX=[[en:docs:dos:api:int21:71:3b|713Bh]]
  
 ===== Note ===== ===== Note =====