INT 2F - DOS 4.0+ SELECT - DISPLAY FORMAT DISK PROMPT

	AX = ADC1h
Return:	AX destroyed???
Note:	This function is called by DOS 4.0+ FORMAT utility just as it prompts
	  for a disk to be formatted.  It is only issued when the undocumented
	  /SELECT option was specified and is intercepted by SELECT displaying
	  the prompt.  However, the callout is still present in DOS 6.0 at
	  least.