INT 21 - DOS - GET DEFAULT DISK NUMBER                    

Input

DOS1 Y DOS2 Y

DOS3

Y DOS5 Y

Output

AX

19h     Drive (0=A, 1=B) AX

BX

        BX

CX

        CX

DX

        DX

ES:DI

    CF
See Also 0Eh


Copyright © 1985 to 2022 Beta Systems                            Last modified: Wednesday, January 05, 2022 .