7 CD/DVD Boot ................................................................................................................................................... 19
7.1 Overview ................................................................................................................................................. 19
7.2 Boot Methods ......................................................................................................................................... 21
7.2.1 Overview ....................................................................................................................................... 21
7.2.2 Emulation Process ........................................................................................................................ 21
7.2.3 No Emulation Boot ........................................................................................................................ 22
7.2.4 Floppy Boot ................................................................................................................................... 22
7.2.5 Hard Drive Boot ............................................................................................................................. 22
7.3 CD/DVD Format ..................................................................................................................................... 23
7.3.1 Overview ....................................................................................................................................... 23
7.3.3 Validation Entry ............................................................................................................................. 24
7.3.4 Initial/Default Entry ........................................................................................................................ 25
7.3.5 Section Header ............................................................................................................................. 25
7.3.6 Section Entry ................................................................................................................................. 27
7.3.7 Section Entry Extension ................................................................................................................ 28
8 INT 13h Function Definitions ............................................................................................................................ 29
8.1 Overview ................................................................................................................................................. 29
8.6 Verify Sectors (FN 04h) .......................................................................................................................... 34
8.8 Read Buffer (FN 0Eh) ............................................................................................................................. 36
8.9 Write Buffer (FN 0Fh) ............................................................................................................................. 37
8.10 Get Disk Type (FN 15h) ........................................................................................................................ 38
8.11 Set Media Type (FN 18h) ..................................................................................................................... 39
8.12 Park Heads (FN 19h) ............................................................................................................................ 40
8.15 Extended Read (FN 42h) ...................................................................................................................... 43
8.16 Extended Write (FN 43h) ...................................................................................................................... 44
8.17 Verify Sectors (FN 44h) ........................................................................................................................ 45
8.20.1 Overview ..................................................................................................................................... 48
8.20.2 Interface Path .............................................................................................................................. 50
8.20.3 Device Path ................................................................................................................................. 51
8.27.1 Overview ..................................................................................................................................... 66
A.1 Hybrid MBR boot overview ..................................................................................................................... 71
Working Draft Enhanced Disk Drive - 4 (EDD-4)
vii