en:docs:dos:api:int21:51

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

en:docs:dos:api:int21:51 [2021/05/02 05:17] – created prokusheven:docs:dos:api:int21:51 [2024/05/03 02:28] (current) – prokushev
Line 24: Line 24:
 ===== Notes ===== ===== Notes =====
  
- DOS uses the current PSP address to determine which processes own files +DOS uses the current PSP address to determine which processes own files and memory; it corresponds to process identifiers used by other OSs 
-   and memory; it corresponds to process identifiers used by other OSs + 
- under DOS 2.x, this function cannot be invoked inside an INT 28h +under DOS 2.x, this function cannot be invoked inside an INT 28h handler without setting the Critical Error flag 
-   handler without setting the Critical Error flag + 
- under DOS 3.0+, this function does not use any of the DOS-internal +under DOS 3.0+, this function does not use any of the DOS-internal stacks and may thus be called at any time, even during another INT 21h call 
-   stacks and may thus be called at any time, even during another + 
-   INT 21h call +supported by OS/2 compatibility box 
- supported by OS/2 compatibility box + 
- identical to the documented AH=62h +identical to the documented AH=62h 
- this call was undocumented prior to the release of DOS 5.0+ 
 +this call was undocumented prior to the release of DOS 5.0
                      
 ===== See also ===== ===== See also =====
  
- AH=26h,AH=50h,AH=62h+AH=[[en:docs:dos:api:int21:26|26h]],AH=[[en:docs:dos:api:int21:50|50h]],AH=[[en:docs:dos:api:int21:62|62h]]
  
 ===== Note ===== ===== Note =====