en:docs:dos:api:int21:57

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en:docs:dos:api:int21:57 [2021/05/02 08:42] – created prokusheven:docs:dos:api:int21:57 [2021/08/01 05:51] (current) – prokushev
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 ====== Int 21H, AH=57H ====== ====== Int 21H, AH=57H ======
  
-===== Version =====+===== Input ======
  
-2 and higher+ AH=57H, AL=Subfunction
  
-===== Brief =====+^ Subfunction                        ^ Description                                       ^ Version ^ 
 +| [[en:docs:dos:api:int21:57:00|00]] | GET FILE'S LAST-WRITTEN DATE AND TIME             | 2.0+    | 
 +| [[en:docs:dos:api:int21:57:01|01]] | SET FILE'S LAST-WRITTEN DATE AND TIME             | 2.0+    |
  
-"GET FILE'S LAST-WRITTEN DATE AND TIME 
- 
-===== Family API ===== 
- 
- 
-===== Input ===== 
- 
- AX = 5700h 
- BX = file handle 
- 
-===== Return ===== 
- 
- CF clear if successful 
-     CX = file's time (see #01665) 
-     DX = file's date (see #01666) 
- CF set on error 
-     AX = error code (01h,06h) (see #01680) 
- 
-===== Notes ===== 
- 
- under DR DOS 3.41 and 5.0, this function returns 0 (no date/time) for 
-   character devices; MS-DOS returns date and time of opening 
- 
- Bitfields for file time: 
- Bit(s) Description (Table 01665) 
- 15-11 hours (0-23) 
- 10-5 minutes 
- 4-0 seconds/2 
- 
- Bitfields for file date: 
- Bit(s) Description (Table 01666) 
- 15-9 year - 1980 
- 8-5 month 
- 4-0 day 
-           
-===== See also ===== 
- 
-   AX=5701h,AX=5704h"Windows95" 
- 
-===== Note ===== 
- 
-Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]] 
  
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