Checkpoint
Description
A9
Wait for user input at configuration display if needed.
AA
Uninstall POST INT1Ch vector and INT09h vector. De-initializes the ADM module.
AB
Prepare BBS for Int 19 boot.
AC
End of POST initialization of chipset registers.
B1
Save system context for ACPI.
00
Passes control to OS Loader (typically INT19h).
97