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CPUSPEED
TESTVRAM
RESET KB
8254TEST
8259MSK
8259MSK2
8259TEST
Reserved
COUNTMEM
MP INIT
USB INIT
TEST MEM
SHOW MP
PNP LOGO
Reserved
SHOW EZF
ONBD IO
EN SETUP
MSINSTAL
CHK ACPI
EN CACHE
SET CHIP
AUTO CFG
INIT FDC
CUTIRQ2
DET IDE
COM/LPT
DET FPU
A-2
. Program CPU internal MTRR (P6 & PII) for 0-640K memory address.
2. Initialize the APIC for Pentium class CPU.
3. Program early chipset according to CMOS setup. Example: onboard IDE
controller.
4. Measure CPU speed.
5. Invoke video BIOS.
. Initialize multi-language
2. Put information on screen display, including Award title, CPU type, CPU
speed .
Reset keyboard except Winbond 977 series Super I/O chips.
Test 8254
Test 8259 interrupt mask bits for channel .
Test 8259 interrupt mask bits for channel 2.
Test 8259 functionality.
Initialize EISA slot
. Calculate total memory by testing the last double word of each 64K page.
2. Program write allocation for AMD K5 CPU.
. Program MTRR of M CPU
2. Initialize L2 cache for P6 class CPU & program CPU with proper
cacheable range.
3. Initialize the APIC for P6 class CPU.
4. On MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical.
Initialize USB
Test all memory (clear all extended memory to 0)
Display number of processors (multi-processor platform)
. Display PnP logo
2. Early ISA PnP initialization
-Assign CSN to every ISA PnP device.
Initialize the combined Trend Anti-Virus code.
(Optional Feature)
Show message for entering AWDFLASH.EXE from FDD (optional)
. Initialize Init_Onboard_Super_IO switch.
2. Initialize Init_Onbaord_AUDIO switch.
Okay to enter Setup utility; i.e. not until this POST stage can users enter the
CMOS setup utility.
Initialize PS/2 Mouse
Prepare memory size information for function call: INT 5h ax=E820h
Turn on L2 cache
Program chipset registers according to items described in Setup & Auto-
configuration table.
. Assign resources to all ISA PnP devices.
2. Auto assign ports to onboard COM ports if the corresponding item in
Setup is set to "AUTO".
1. Initialize floppy controller
2. Set up floppy related fields in 40:hardware.
(Optional Feature)
Enter AWDFLASH.EXE if :
-AWDFLASH is found in floppy drive.
-ALT+F2 is pressed
Detect & install all IDE devices: HDD, LS20, ZIP, CDROM.....
Detect serial ports & parallel ports.
Detect & install co-processor
Appendice : Code de débogage
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Chapitres
