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;* GetCurDisk - Gets designation of current disk.
;*
;* Shows:   DOS Function - 19h (Get Current Disk)
;*          Instruction - cbw
;*
;* Params:  None
;*
;* Return:  Short integer with drive designation
;*          0 = A, 1 = B, 2 = C, etc.
 
GetCurDisk PROC
 
        mov     ah, 19h                 ; DOS Function 19h
        int     21h                     ; Get Current Disk
        cbw                             ; AX = drive designation
        ret
 
GetCurDisk ENDP
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