112 Veriton 3500/5500/750023h 1. Check validity of RTC value:e.g. a value of 5Ah is an invalid value for RTC minute.2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use default valueinstead.3. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take intoconsideration of the ESCD’s legacy information.4. Onboard clock generator initialization. Disable respective clock resource to empty PCI& DIMM slots.5. Early PCI initialization-Enumerate PCI bus number-Assign memory & I/O resource-Search for a valid VGA device and VGA BIOS, and put it into C000:024h Reserved25h Reserved26h Reserved27h Initialize INT 09 buffer28h Reserved29h 1. 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.2Ah Reserved2Bh Reserved2Ch Reserved2Dh 1. Initialize multi-language2. Put information on screen display, including Award title, CPU type, CPU speed...2Eh Reserved2Fh Reserved30h Reserved31h Reserved32h Reserved33h Reset keyboard except Winbond 977 series Super I/O chips.34h Reserved35h Reserved36h Reserved37h Reserved38h Reserved39h Reserved3Ah Reserved3Bh Reserved3Ch Test 8254.3Dh Reserved3Eh Test 8259 interrupt mask bits for channel 13Fh Reserved40h Test 8259 interrupt mask bits for channel 2.41h Reserved42h Reserved.Checkpoint Description
