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Olivetti EISA 2.01
POST is sent to port 278, 378, or 3BC (i.e. printer ports)

Code

Meaning

01

Test CPU flags, registers. Initialize interrupt controller

02

Test memory refresh

03

Test CMOS RTC periodic interrupt

04

Test gate A20 line

05

Test mapping memory SRAM

06

Test first 128K RAM. Stack has now been established

07

Test for console presence and initialize

08

Verify system BIOS ROM checksum

09

Test 8042 keyboard controller Normal burn-in/manufacturing mode established

0A

Test timer ratio

0B

Test CMOS RAM battery

0C

Verify CMOS RAM checksum

0D

Test for unexpected NMI

0E

Test interrupt controller #1

0F

Test interrupt controller #2

10

Test timer 1 counter 0

11

Test system control port B

12

Test system control port A

13

Verify checksum of NVRAM configuration memory

14

Initialize system board

15

Initialize adapter

16

Initialize ESC SCSI adapter

17

Initialize system video

18

Test and copy shadow RAM. Video is initialized?adisplay banner and non-fatal errors

19

Test DMA page registers

1A

Test DMA address registers

1B

Test DMA count registers

1C

Test DMA mask registers

1D

Test DMA stop registers. Initialize DMA controllers

1E

Test IDTR and GDTR

1F

Test CMOS shutdown byte

20

Test real/protected mode

21

Check system memory configuration

22

Size memory

23

Test 640K base memory

24

Verify base memory configuration

25

Test extended memory (above 1 Mb)

26

Verify extended memory configuration

27

Check for contiguous extended memory

28

Test cache memory. Extended BIOS data area created and POST errors logged

29

Test protected mode instructions

2A

Test CMOS RAM

2B

Test real time clock

2C

Check calendar values

2D

Test keyboard/AUX device fuse

2E

Test keyboard

2F

Initialize keyboard typematic rate and delay

30

Test auxiliary device

31

Test 80x87 math coprocessor

32

Test and initialize Weitek math coprocessor

33

Run 1860 CPU basic and advanced diagnostics

34

Test and configure serial ports

35

Test and configure parallel ports

36

Detect game port

37

Test and initialize hard drives

38

Test and initialize floppy drives

39

Scan for and pass control to adapter ROMs

3A

INT 19 boot?aload operating system

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