INT 21 - DOS Internal - TRANSLATE BPB

Input

 DOS1 N DOS2 Y

DOS3

 Y DOS5 Y

Output

AX

 53h       AX

BX

         BX

CX

         CX

DS:SI

  Pointer to BPB (BIOS Param Block)     DX

ES:DI

 Dest for DPB (Drive Param Block)   CF 
See Also BPB DPB


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