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Checkpoint Code
A8h
A9h
Aah
Abh
B0h
B1h
00h
Bus Checkpoint Codes
The system BIOS passes control to different buses at the following
checkpoints:
Checkpoint Code
2Ah
38h
39h
95h
Description
Initialization before passing control to the adaptor
ROM at E000h completed. Passing control to the
adaptor ROM at E000h next.
Returned from adaptor ROM at E000h control.
Performing any initialization required after the
E000 option ROM had control next.
Initialization after E000 option ROM control has
completed. Displaying the system configuration
next.
Uncompressing the DMI data and executing DMI
POST initialization next.
The system configuration is displayed.
Copying any code to specific areas.
Code copying to specific areas is done. Passing
control to INT 19h boot loader next.
Description
Initializing the different bus system, static, and
output devices, if present.
Initialized bus input, IPL, and general devices, if
present.
Displaying bus initialization error messages, if any.
Initializing bus adaptor ROMs from C8000h
through D8000h.
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