[Àû¿ë´ë»ó: 0.74_SVN_new, DOSBox-x]

If set, DOSBox-X will automatically attach a disk image as being inserted into a floppy drive attached to the controller when imgmount is used
to mount a disk image to drive 0/1 or A/B.

If not set, you must specify the -fdc option to imgmount to attach drive A/B to the floppy controller manually.

You must use the -fdc option regardless if loading floppies into drives attached to any other FDC than the primary controller