57
Altos R310
6Bh
If CMOS is bad, load Custom Defaults from flash into
CMOS. If successful, reboot.
6Ch
Display shadow message.
6Eh
Display the starting offset of the non-dis-posable
segment of the BIOS.
70h
Check flags in CMOS and in the BIOS data area for
errors detected during POST. Display error
messages on the screen.
72h
Check status bits to see if configuration
problems were detected. If so, display error
messages on the screen.
76h
Check status bits for keyboard-related failures.
Display error messages on the screen.
7Ch
Initialize the hardware interrupt vectors from 08 to 0F
and from 70h to 77h. Also set the interrupt vectors
from 60h to 66h to
zero.
7Dh
Initialize Intelligent System Monitoring.
7Eh
The Coprocessor initialization test. Use the floating
point instructions to determine if acoprocessor exists
instead of the ET bit in CR0.
80h
Disable onboard COM and LPT ports before testing
for presence of external I/O devices.
81h
Run late device initialization routines.
82h
Test and identify RS232 ports.
83h
Configure Fisk Disk Controller.
84h
Test and identify parallel ports.
85h
Display any ESCD read errors and configure all PnP
ISA devices.
86h
Initialize onboard I/O and BDA according to CMOS
and presence of external devices.
87h
Initialize motherboard configurable devices.
88h
Initialize interrupt controller.
89h Enable
NMI
8Ah
Initialize Extended BIOS Data Area and initialize the
mouse.
8Bh
Setup interrupt vector and present bit in Equipment
byte.
8Ch
Initialize both of the floppy disks and display an error
message if failure was detected. Check both drives
to establish the appropriate diskette types in the
BIOS data area.
8Fh
Count the number of ATA drives in the system and
update the number in bdaFdiskcount.
90h
Initialize hard-disk controller. If the CMOS RAM is
valid and intact, and fixed disks are defined, call the
fixed disk init routine tointialize the fixed disk system
and take over the appropriate interrupt vectors.
Checkpoint Code
Beep Code
Description
