User`s guide
B.9 Flash ROM Structure
Changing TOY RAM Location 0x3F—Debug Monitor
bootopt
Command
Use the debug monitor
bootopt
command to change the value in location 3F.
In the example shown here, the
bootopt
command is used to change the value
in location 3F from 0 to 1.
EB164> bootopt
Predefined bootoptions are...
"0" "Alpha Evaluation Board Debug Monitor" "DBM"
"1" "The Windows NT Operating System" "NT"
"2" "OpenVMS" "VMS"
"3" "Digital UNIX" "UNIX"
O/S type selected: "Alpha Evaluation Board Debug Monitor"
....Firmware type: "DBM Firmware"
EB164> bootopt nt
O/S type selected: "The Windows NT Operating System"
....Firmware type: "Windows NT Firmware"
EB164> bootopt
Predefined bootoptions are...
"0" "Alpha Evaluation Board Debug Monitor" "DBM"
"1" "The Windows NT Operating System" "NT"
"2" "OpenVMS" "VMS"
"3" "Digital UNIX" "UNIX"
O/S type selected: "The Windows NT Operating System"
....Firmware type: "Windows NT Firmware"
EB164>
Use the debug monitor
bootopt
command to see the image choices and note
which image is selected.
Use the debug monitor
bootopt nt
command to change the selected image
from 0 to 1.
Use the debug monitor
bootopt
command to verify that the selected image
has changed from 0 to 1.
B–14 SROM Initialization