Acer 2400 User Manual

Chapter 4

65

44

DEBUG_OEM_INIT_POWER_MAN

Check special device initial power management 
function

45

DEBUG_KEYB_SET_LEDS_2

Clear keyboard buffer and Update NUMLOCK 
status

46

DEBUG_HWIO_FIND_80X87

Test For Coprocessor Installed, and enable 
coprocessor interrupt

47

DEBUG_OEM_LAST_MINUTE_INIT

Run OEM functions before boot, and enable 
L1,L2 cache

48

DEBUG_MISC_LAUNCH_INT19

Post code will finish, ready to run int19 and load 
OS

49

DEBUG_BEGIN_BOOT_CODE

Into Int19, to boot from floppy or other boot 
device

50

DEBUG_ACPI_INIT

Initialize the ACPI function

51

DEBUG_PM_CPU_INIT

Power manager initial & GEYSERVILLE CPU                   
initialize

52

DEBUG_USB_HC_INIT

Clear USB status register and Initiallize the USB 
Hub controller.

PCI BIOS -- PCICORE.ASM

D0

DEBUG_ROM_MAPPED_OK

check PCI 1.x VGA card rom mapping and rom 
signature

D1

DEBUG_SEGMENTENABLE_ 
COPYSTATE_1

enable PCI device use ram area, record in  PCI 
register

D2

DEBUG_COPY_HROM_RAM_1

Enable PCI device ROM copy to RAM, record in 
PCI register

D3

DEBUG_SEGMENTENABLE_ 
READWRITE_1

update PCI device segment range attribute 
registers

D4

DEBUG_MAP_MEM_1

Configure PCI device memory registers

D5

DEBUG_MAP_IO_1

Configure PCI device I/O registers

D6

DEBUG_MAP_IRQ_1

Configure PCI device IRQ assignments

D7

DEBUG_CONFIG_COM_REG_1

turn on PCI device

D8

DEBUG_REVISION_1

PCI 2.x video card rom mapping

D9

DEBUG_OEM_DEV_CLEANUP_1

OEM PCI device defined, and initial OEM rom

DA

DEBUG_PCI_ADDIN_ROM_ 
DISABLE_1

disable add-in rom card decode

DB

DEBUG_RET_PCI_1

PCI device config finish

DC

DEBUG_SEGMENTENABLE_ 
COPYSTATE_2

enable PCI video device use ram area, record in  
PCI register

DD

DEBUG_COPY_HROM_RAM_2

Enable PCI video device ROM copy to RAM, 
record  in PCI register

DE

DEBUG_SEGMENTENABLE_ 
READWRITE_2

update PCI video device segment range  
attribute  registers

DF

DEBUG_MAP_MEM_2

configure PCI video device memory registers

E0

DEBUG_MAP_IO_2

configure PCI video device I/O registers

E1

DEBUG_MAP_IRQ_2

configure PCI video device IRQ assignments

E2

DEBUG_CONFIG_COM_REG_2

turn on PCI video device

E3

DEBUG_REVISION_2

PCI 2.x video rom mapping

E4

DEBUG_OEM_DEV_CLEANUP_2

OEM PCI video device defined, and initial OEM 
rom

E5

DEBUG_PCI_ADDIN_ROM_ 
DISABLE_2

disable PCI video device add-in rom card decode