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Appendix
D-4
6Eh Reserved
6Fh 1. Initialize floppy controller
2. Set up floppy related fields in 40:hardware.
70-72h Reserved
73h (Optional Feature) Enter AWDFLASH.EXE if :
-AWDFLASH is found in floppy drive.
-ALT+F2 is pressed
74h Reserved
75h Detect & install all IDE devices: HDD, LS120, ZIP, CDROM..
76h Reserved
77h Detect serial ports & parallel ports.
78h-79h Reserved
7Ah Detect & install co-processor
7B-7Eh Reserved
7Fh 1. Switch back to text mode if full screen logo is supported.
-If errors occur, report errors & wait for keys
-If no errors occur or F1 key is pressed to continue:
!"Clear EPA or customization logo.
80h-81h Reserved
82h 1. Call chipset power management hook.
2. Recover the text fond used by EPA logo (not for full screen logo)
3. If password is set, ask for password.
83h Save all data in stack back to CMOS
84h Initialize ISA PnP boot devices
85h 1. USB final Initialization
2. NET PC: Build SYSID structure
3. Switch screen back to text mode
4. Set up ACPI table at top of memory.
5. Invoke ISA adapter ROMs
6. Assign IRQs to PCI devices
7. Initialize APM
8. Clear noise of IRQs.
86-92h Reserved
93h Read HDD boot sector information for Trend Anti-Virus code
94h 1. Enable L2 cache
2. Program boot up speed
3. Chipset final initialization.
4. Power management final initialization
5. Clear screen & display summary table
6. Program K6 write allocation
7. Program P6 class write combining
95h 1. Program daylight saving
2. Update keyboard LED & typematic rate
96h 1. Build MP table
2. Build & update ESCD
3. Set CMOS century to 20h or 19h
4. Load CMOS time into DOS timer tick
5. Build MSIRQ routing table.
FFh Boot attempt (INT 19h)