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ACER
Based on Award BIOS 3.03, but not exactly the same.

Code

Meaning

04

Start

08

Shutdown

0C

Test BIOS ROM checksum

10

Test CMOS RAM shutdown byte

14

Test DMA controller

18

Initialise system timer

1C

Test memory refresh

1E

Determine memory type

20

Test 128K memory

24

Test 8042 keyboard controller

28

Test CPU descriptor instruction

2C

Set up and test 8259 interrupt controller

30

Set up memory interrupts

34

Set up BIOS interrupt vectors and routines

38

Test CMOS RAM

3C

Determine memory size

XX

Shut down 8 (system halt C0h + checkpoint)

40

Shutdown 1

44

Initialise Video BIOS ROM

45

Set up and test RAM BIOS

46

Test cache memory and controller

48

Test memory

4C

Shutdown 3

50

Shutdown 2

54

Shutdown 7

55

Shutdown 6

5C

Test keyboard and auxiliarv I/O

60

Set up BIOS interrupt routines

64

Test real time clock

68

Test diskette

6C

Test hard disk

70

Test parallel port

74

Test serial port

78

Set time of day

7C

Scan for and invoke option ROMs

80

Determine presence of math coprocessor

84

initialize keyboard

88

Initialise svstem 1

8C

Initialize system 2

90

Invoke INT 19 to boot operating system

94

Shutdown 5

98

Shutdown A

9C

Shutdown B

BACK

 

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