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