BIOS Quick Reference

POST_STATUS_BEFORESETUP

86h

Password accepted.

POST_STATUS_CALLSETUP

87h

Entering setup system.

POST_STATUS_POSTSETUP

88h

Setup system exited.

POST_STATUS_DISPPWRON

89h

Display power-on screen message.

POST_STATUS_DISPWAIT

8ah

Display "Wait..." message.

POST_STATUS_ENABSHADOW

8bh

Shadow system & video BIOS.

POST_STATUS_STDCMOSSETUP

8ch

Load standard setup values from CMOS.

POST_STATUS_MOUSE

8dh

Test and initialize mouse.

POST_STATUS_FLOPPY

8eh

Test floppy disks.

POST_STATUS_CONFIGFLOPPY

8fh

Configure floppy drives.

POST_STATUS_IDE

90h

Test hard disks.

POST_STATUS_CONFIGIDE

91h

Configure IDE drives.

POST_STATUS_CHECKSEG40G

92h

Checking ROM BIOS data area.

POST_STATUS_CHECKSEG40H

93h

Checking ROM BIOS data area.

POST_STATUS_SETMEMSIZE

94h

Set base & extended memory sizes.

POST_STATUS_SIZEADJUST

95h

Adjust low memory size for EBDA.

POST_STATUS_INITC8000

96h

Initialize before calling C800h ROM.

POST_STATUS_CALLC8000

97h

Call ROM BIOS extension at C800h.

POST_STATUS_POSTC8000

98h

ROM C800h extension returned.

POST_STATUS_TIMERPRNBASE

99h

Configure timer/printer data.

POST_STATUS_SERIALBASE

9ah

Configure serial port base addresses.

POST_STATUS_INITBEFORENPX

9bh

Prepare to initialize coprocessor.

POST_STATUS_INITNPX

9ch

Initialize numeric coprocessor.

POST_STATUS_POSTNPX

9dh

Numeric coprocessor initialized.

POST_STATUS_CHECKLOCKS

9eh

Check KB settings.

POST_STATUS_ISSUEKBDID

9fh

Issue keyboard ID command.

POST_STATUS_RESETID

0a0h

KB ID flag reset.

POST_STATUS_TESTCACHE

0a1h

Test cache memory.

POST_STATUS_DISPSOFTERR

0a2h

Display soft errors.

POST_STATUS_TYPEMATIC

0a3h

Set keyboard typematic rate.

POST_STATUS_MEMWAIT

0a4h

Program memory wait states.

POST_STATUS_CLRSCR

0a5h

Clear screen.

POST_STATUS_ENABPTYNMI

0a6h

Enable parity and NMIs.

POST_STATUS_INITE000

0a7h

Initialize before calling ROM at E000h.

POST_STATUS_CALLE000

0a8h

Call ROM BIOS extension at E000h.

POST_STATUS_POSTE000

0a9h

ROM extension returned.

POST_STATUS_DISPCONFIG

0b0h

Display system configuration box.

POST_STATUS_INT19BOOT

00h

Call INT 19h bootstrap loader.

POST_STATUS_LOWMEMEXH

0b1h

Test low memory exhaustively.

POST_STATUS_EXTMEMEXH

0b2h

Test extended memory exhaustively.

POST_STATUS_PCIENUM

0b3h

Enumerate PCI busses.

5-14

Celeron™ Processor Development Kit Manual

Page 54
Image 54
Intel 273246-002 manual Poststatusbeforesetup