Acer Altos R310 User Manual
Page 36
3 Getting Started
26
3Ch
If CMOS is valid, load chipset registers with
values from CMOS, otherwise load defaults
and display Setup prompt. If Auto Configu-
ration is enabled, always load the chipset
registers with the Setup defaults.
3Dh
Load alternate registers with CMOS values.
Register-table pointers are in the altreg-
table segment.
41h
Initialize extended memory for RomPilot.
42h
Initialize interrupt vectors 0 thru 77h to the
BIOS general interrupt handler.
45h
Initialize all motherboard devices.
46h
2-1-2-3
Verify the ROM copyright notice
47h
Initialize support for I2O by initializing glo-
bal variables used by the I2O code. Pause
POST table processing if a CMOS bit is set
(for debugging).
48h
Verify that the equipment specified in the
CMOS matches the hardware currently
installed. If the monitor type is set to 00
then a video ROM must exist. If the monitor
type is 1 or 2 set the video switch to CGA. If
monitor type 3, set the video switch to
mono. Also specify in the equipment byte
that disk drives are installed. Set appropri-
ate status bits in CMOS or the BDA if config-
uration errors are found.
Checkpoint
Code
Beep Code
Description
BB!S421!.!FO/cppl!!Qbhf!37!!Xfeoftebz-!Nbsdi!35-!3115!!6;1:!QN