User`s guide
KA52/53/54 Firmware Commands
3.2 Console Commands
continuously attempt to boot from EZA0.
Set the default boot device and boot flags with the SET BOOT and SET BFLAG
commands. If you do not set a default boot device, the processor times out after
30 seconds and attempts to boot from the Ethernet device, EZA0.
Qualifiers:
Command specific:
/R5:{boot_flags} A 32-bit hex value passed to VMB in R5. The console does not interpret
this value. Use the SET BFLAG command to specify a default boot flags
longword. Use the SHOW BFLAG command to display the longword.
/{boot_flags} Same as /R5:{boot_flags}
[device_name] A character string of up to 32 characters. When specifying a list of boot
devices, the device names should be separated by commas and no spaces.
Apart from checking the length, the console does not interpret or validate
the device name. The console converts the string to uppercase, then passes
VMB a string descriptor to this device name in R0. Use the SET BOOT
command to specify a default boot device or list of devices. Use the SHOW
BOOT command to display the default boot device. The factory default
device is the Ethernet device, EZA0. Refer to the VAX 4000 Customer
Technical Information manuals for a list of the boot devices supported by the
Model 100 system.
Examples:
>>>SHOW BOOT
DKA300
>>>SHOW BFLAG
00000000
>>>B !Boot using default boot flags and device.
(BOOT/R5:0 DKA300)
2..
-DKA300
3.2.2 CONTINUE
The CONTINUE command causes the processor to begin instruction execution
at the address currently contained in the program counter (PC). This address
is the address stored in the PC when the system entered console mode
or an address that the user specifies using the DEPOSIT command. The
CONTINUE command does not perform a processor initialization. The console
enters program I/O mode.
Format:
CONTINUE
KA52/53/54 Firmware Commands 3–13










