mirror of
https://github.com/wwarthen/RomWBW.git
synced 2026-02-06 14:11:48 -06:00
17 lines
613 B
Plaintext
17 lines
613 B
Plaintext
Design Notes for 1.4 -
|
|
|
|
12/25/2011 DWG - Logical Unit enhancement for block drivers
|
|
|
|
The previous version implemented Logical Unit functionality
|
|
by poking an offset word into a private data structure in
|
|
PPIDE_DATA.ASM.
|
|
|
|
In order to make the Logical Unit functionality more generic,
|
|
Wayne suggested adding the appropriate data items to the end
|
|
of the Disk Parameter Header data structure (because there is
|
|
one each for each drive).
|
|
|
|
The added items consist of a Logical Unit enhancement signature
|
|
which is two bytes "LU", and several subsequent items including
|
|
a default slice number and status.
|