| 03 |
NMI
is disabled. To check soft reset/power on |
| 05 |
BIOS
stack set. Going to disable cache if any |
| 06 |
POST
code to be uncompressed |
| 07 |
CPU
init and CPU data area init to be done |
| 08 |
CMOS
checksum calculation to be done next |
| 0B |
Any
initialization before keyboard BAT to be done next |
| 0C |
Keyboard
controller I/B free. To issure the BAT command to the
keyboard controller |
| 0E |
Any
initialization after keyboard controller BAT to be done
next |
| 0F |
Keyboard
command byte written |
| 10 |
Going
to issue Pin 23, 24 blocking/unblocking command |
| 11 |
Going
to check pressing of <INS>, <END> key during
power-on |
| 12 |
To
init CMOS if "Init CMOS in every boot" is
set or <END> key is pressed. Going to disable
DMA and interrupt controllers |
| 13 |
Video
display is disabled and port B is initialized. Chipset
init about to begin |
| 14 |
8254
timer test about to start |
| 19 |
About
to start memory refresh test |
| 1A |
Memory
refresh line is toggling. Going to check 15 µs
On/OFF time |
| 23 |
To
read 8042 input port and disable megakey GreenPC feature.
make BIOS cade segment writeable |
| 24 |
To
do any setup before int vector init |
| 25 |
Interrupt
vector initialization to begin. To clear password if
necessary |
| 27 |
Any
initialization before setting video mode to be done |
| 28 |
Going
for monochrome mode and color mode setting |
| 2A |
Different
buses init (system, static, output devices) to start
if present |
| 2B |
To
give control for any setup required before optional
ROM check |
| 2C |
To
look for optional video ROM and give control |
| 2D |
To
give control to do any processing after video ROM returns
control |
| 2E |
If
EGA/VGA not found then do display memory R/W |
| 2F |
EGA/VGA
not found. Display memory R/W test about to begin |
| 30 |
Display
memoryR/W test passed. About to look for the retrace
checking |
| 31 |
Display
memory R/W test or retrace checking failed. To do alternate
Display memory R/W test |
| 32 |
Alternate
Disaply memory R/W test passed. To look for the alternate
display retrace checking |
| 34 |
Video
display checking over. Display mode to be set next |
| 37 |
Display
mode set. Going to display the power on message |
| 38 |
Different
buses init (input, IPL, general devices) to start if
present |
| 39 |
Display
different buses initialization error messages |
| 3A |
New
cursor position read and saved. To display the Hit <DEL>
message |
| 40 |
tp
prepare the descriptor tables |
| 42 |
To
enter virtual mode for memory test |
| 43 |
To
enable interrupts for diagnostics mode |
| 44 |
To
initialize data to check memory wrap around at 0:0 |
| 45 |
Data
initializaed. Going to check for memory wrap around
at 0:0 and finding the total system test memory |
| 46 |
Memory
wrap around test done. Memory size calculation over.
About to go for writing patterns to test memory. |
| 47 |
Pattern
to be tested written in extended memory. Going to write
patterns in base 640KB memory |
| 48 |
Patterns
written in base memory. Going to find out amount of
memory below 1M memory |
| 49 |
Amount
of memory below 1M found and verified. Going to find
out amount of memory above 1M memory |
| 4B |
Amount
of memory above 1M found and verified. Check for soft
reset and going to clear memory below 1M for soft reset.
(If power on, go to check point # 4E |
| 4C |
Memory
below 1M cleared. (SOFT RESET) Going to clear memory
above 1M |
| 4D |
memory
above 1M cleared (SOFT RESET) Going to save the memory
size (Go to checl point # 52 |
| 4E |
Memory
test started. (NOT SOFT RESET) About to display the
first 64KB memory size |
| 4F |
Memory
size display started. this will be updated during memory
test. going for sequential and random memory test |
| 50 |
Memory
testing/iniialization below 1MB complete. Going to adjust
displayed memory size for relocation shadow |
| 51 |
Memory
size display adjusted due to relocation/shadow. memory
test above 1MB to follow |
| 52 |
Memory
testing/initialization above 1MB complete. Going to
save memory size information |
| 53 |
Memory
size information is saved. CPU registers are saved.
Going to enter real mode |
| 54 |
Shutdown
successful, CPu in real mode. Going to disable gate
A20 line and disable parity/NMI |
| 57 |
A20
address line, parity/NMI disable successful. Going to
adjust memory size depending on relocation/shadow |
| 58 |
Memory
size adjusted for relocation/shadow. Going to clear
hit <DEL> message |
| 59 |
Hit
<DEL> message cleared. <WAIT...> message
displayed. About to start DMA and interrupt controller
test |
| 60 |
DMA
page register test passed. To do DMA #1 base register
test |
| 62 |
DMA
#1 base register test passed. To do DMA #2 base register
test |
| 65 |
DMA
#2 base register test passed. To program DMA #1 and
#2 |
| 66 |
DMA
#1 and #2 programming over. To initialize 8259 interrupt
controller |
| 7F |
Extended
NMI sources enabling is in progress |
| 80 |
Keyboard
test started. Clearing output buffer, checking for stuck
key, to issue keyboard reset command |
| 81 |
Keyboard
reset error/stuck key found. To issue keyboard controller
interface test command |
| 82 |
Keyboard
controller interface test over. To write command byte
and init circular buffer |
| 83 |
Command
byte written, global data init done. To check for lock-key |
| 84 |
Lock
key checking over. to check for memory size mismatch
with CMOS |
| 85 |
Memory
size check done. to display soft error and check for
password or bypass setup |
| 86 |
Passwoed
checked. About to do programming before setup |
| 87 |
Programming
before setup complete. To uncompress SETUP code and
execute CMOS setup |
| 88 |
Returned
from CMOS setup program and screen is cleared. About
to do programming after setup |
| 89 |
Programming
after setup complete. Going to display power-on screen
message |
| 8B |
First
screen message displayed. <WAIT...> message displayed.
PS/2 mouse check and extended BIOS data area allocation
to be done |
| 8C |
Setup
options programming after CMOS setup about to start |
| 8D |
Going
to hard disk controller reset |
| 8F |
Hard
disk controller reset done. Floppy setup to be done
next |
| 91 |
Floppy
setup complete. Hard disk setup to be done next |
| 95 |
Init
of different buses optional ROMs from C800 to start. |
| 96 |
Going
to do any init before C800 optional ROM control |
| 97 |
Any
init before C800 optional ROM control is over. Optional
ROM check and control will be done next |
| 98 |
Optional
ROM control is done. About to give control to do any
required processing after optional ROM returns control
and enable external cache |
| 99 |
Any
initialization required after optional ROM test over.
Going to setup timer data area and printer base address |
| 9A |
Return
after setting timer and printer base addresses. Going
to set the RS-232 base address |
| 9B |
Returned
after RS-232 base address. Going to do any initialization
before coprocessor test |
| 9C |
Required
initialization before coprocessor is over. Going to
initializae the coprocessor test |
| 9D |
Coprocessor
initialized. Goin to do any initialization after coprocessor
test |
| 9E |
Initialization
after coprocessor test is complete. Goin to check extended
keyboard, keyboard ID and num-lock |
| A2 |
Going
to display any soft errors |
| A3 |
Soft
error display complete. Going to set keyboard typematic
rate |
| A4 |
Keyboard
typematic rate set. To program memory wait states |
| A5 |
Going
to enable parity/NMI |
| A7 |
NMI
and parity enabled. Going to do any initialization required
before giving control to optional ROM at E000 |
| A8 |
Initialization
before E000 ROM control over. E000 ROM to get control
next |
| A9 |
Returned
from E000 ROM control. Going to do any initialization
required after E000 optional ROM control |
| AA |
Initialization
after E000 optional ROM control is over. Going to display
the system configuration |
| AB |
Put
Int13 module runtime image to shadow |
| AC |
Generate
MP for multiprocessor support (if present) |
| AD |
Put
CGA Int10 module (if present) in shadow |
| AE |
Uncompress
SMBIOS module and init SMBIOS code and form the runtime
SMBIOS image in shadow |
| B1 |
Going
to copy any code to specific area |
| 00 |
Copying
of code to specific area done. Going to give control
to Int19 boot loader |
