INT 21 - DOS - ALLOCATION TABLE INFORMATION

Input

 DOS1 Y DOS2 Y

DOS3

 Y DOS5 Y

Output

AX

 1Bh     Sectors/Alloc AX

BX

          

CX

     Bytes per Sector CX

DX

     Allocation Units on Disk DX

ES:DI

   Points to FAT ID Byte DS:BX 
See Also 1Ch 36h


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