MEM 0040h:00D7h - EHD floppy - DRIVE 0 DISKETTE MEDIA STATE                     
Size:	BYTE
Note:	the value in this byte is copied into 0040h:0090h (diskette 0 status)
SeeAlso: MEM 0040h:00D8h"EHD",MEM 0040h:00D9h"EHD",MEM 0040h:00DAh"EHD"


Bitfields for EHD diskette media state:
Bit(s)	Description	(Table M0052)
 7-6	data rate: 00=500kbps,01=300kbps,10=250k,11=1M/S
 5	double stepping required (e.g. 360kB in 1.2MB)
 4	media type established
 3	reserved
 2-0	on exit from BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly., contains:
	000 trying 360kB in 360kB
	001 trying 360kB in 1.2MB
	010 trying 1.2MB in 1.2MB
	011 360kB in 360kB established
	100 360kB in 1.2MB established
	101 1.2MB in 1.2MB established
	110 reserved (2M8?)
	111 all other formats/drives