Click above to get retro games delivered to your door ever month!

 The ROM BIOS Disk Services
   Service 00H (decimal 0): Reset Disk System
   Service 01H (decimal 1): Get Disk Status
   Service 02H (decimal 2): Read Disk Sectors
   Service 03H (decimal 3): Write Disk Sectors
   Service 04H (decimal 4) : Verify Disk Sectors
   Service 05H (decimal 5) : Format Disk Track
   Service 06H (decimal 6): Format PC/XT Fixed-Disk Track
   Service 07H (decimal 7): Format PC/XT Fixed Disk
   Service 08H (decimal 8): Get Disk-Drive Parameters
   Service 09H (decimal 9): Initialize Fixed-Disk Parameter Tables
   Service 0AH and 0BH (decimal 10 and 11): Read and Write Long
   Service 0CH (decimal 12): Seek to Cylinder
   Service 0DH (decimal 13): Alternate Fixed-Disk Reset
   Service 10H (decimal 16): Test for Drive Ready
   Service 11H (decimal 17): Recalibrate Drive
   Service 15H (decimal 21): Get Disk Type
   Service 16H (decimal 22): Diskette Change Status
   Service 17H (decimal 23): Set Diskette Type
   Service 18H (decimal 24): Set Media Type for Format
   Service 19H (decimal 25): Park Heads
   Service 1AH (decimal 26): Format ESDI Unit
 Disk-Base Tables
 Comments and Examples