Int 2F/AX=4A00h/CX=0000h

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DOS 5+ - FLOPPY-DISK LOGICAL DRIVE CHANGE NOTIFICATION

AX = 4A00h
CX = 0000h
DH = new drive number
DL = current drive number

Return:
CX = FFFFh to skip "Insert diskette for drive X:" message

Note: Called by MS-DOS 5.0+ IO.SYS just before displaying the message "Insert diskette for drive X:" on single-floppy systems

Category: DOS Kernel - Int 2Fh - D

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