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POST Code
43
44
45
46
47
48
49
50
51
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PCI BIOS -- PCICORE.ASM
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
E0
E1
E2
E3
E4
Chapter 4
Macro Name
DEBUG_HWIO_ROM_INIT
DEBUG_OEM_INIT_POWER_MAN
DEBUG_KEYB_SET_LEDS_2
DEBUG_HWIO_FIND_80X87
DEBUG_OEM_LAST_MINUTE_INIT
DEBUG_MISC_LAUNCH_INT19
DEBUG_BEGIN_BOOT_CODE
DEBUG_ACPI_INIT
DEBUG_PM_CPU_INIT
DEBUG_USB_HC_INIT
DEBUG_ROM_MAPPED_OK
DEBUG_SEGMENTENABLE_
COPYSTATE_1
DEBUG_COPY_HROM_RAM_1
DEBUG_SEGMENTENABLE_
READWRITE_1
DEBUG_MAP_MEM_1
DEBUG_MAP_IO_1
DEBUG_MAP_IRQ_1
DEBUG_CONFIG_COM_REG_1
DEBUG_REVISION_1
DEBUG_OEM_DEV_CLEANUP_1
DEBUG_PCI_ADDIN_ROM_
DISABLE_1
DEBUG_RET_PCI_1
DEBUG_SEGMENTENABLE_
COPYSTATE_2
DEBUG_COPY_HROM_RAM_2
DEBUG_SEGMENTENABLE_
READWRITE_2
DEBUG_MAP_MEM_2
DEBUG_MAP_IO_2
DEBUG_MAP_IRQ_2
DEBUG_CONFIG_COM_REG_2
DEBUG_REVISION_2
DEBUG_OEM_DEV_CLEANUP_2
Description
Search option rom from c800 to e000 and to
Initialize option ROMs
Check special device initial power management
function
Clear keyboard buffer and Update NUMLOCK
status
Test For Coprocessor Installed, and enable
coprocessor interrupt
Run OEM functions before boot, and enable
L1,L2 cache
Post code will finish, ready to run int19 and load
OS
Into Int19, to boot from floppy or other boot
device
Initialize the ACPI function
Power manager initial & GEYSERVILLE CPU
initialize
Clear USB status register and Initiallize the USB
Hub controller.
check PCI 1.x VGA card rom mapping and rom
signature
enable PCI device use ram area, record in PCI
register
Enable PCI device ROM copy to RAM, record in
PCI register
update PCI device segment range attribute
registers
Configure PCI device memory registers
Configure PCI device I/O registers
Configure PCI device IRQ assignments
turn on PCI device
PCI 2.x video card rom mapping
OEM PCI device defined, and initial OEM rom
disable add-in rom card decode
PCI device config finish
enable PCI video device use ram area, record in
PCI register
Enable PCI video device ROM copy to RAM,
record in PCI register
update PCI video device segment range
attribute registers
configure PCI video device memory registers
configure PCI video device I/O registers
configure PCI video device IRQ assignments
turn on PCI video device
PCI 2.x video rom mapping
OEM PCI video device defined, and initial OEM
rom
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