i3
Code(hex) Name
Description
2F Reserved
30 Reserved
31 Reserved
32 Reserved
33
PS2 Mouse setup
Setup PS2 Mouse and reset KB
34 Reserved
35 Test
DMA
Controller 0
Test DMA channel 0
36 Reserved
37 Test
DMA
Controller 1
Test DMA channel 1
38 Reserved
39
Test DMA Page
Registers
Test DMA Page Registers.
3A Reserved
3B Reserved
3C Test
Timer
Counter 2
Test 8254 Timer 0 Counter 2.
3D Reserved
3E
Test 8259-1 Mask
Bits
Verify 8259 Channel 1 masked interrupts
by alternately turning off
and on the interrupt lines.
3F Reserved
40
Test 8259-2 Mask
Bits
Verify 8259 Channel 2 masked interrupts
by alternately turning off
and on the interrupt lines.
41 Reserved
42 Reserved
43 Test
Stuck8259's
Interrupt Bits
Test 8259
Interrupt
Functionality
Turn off interrupts then verify no
interrupt mask register is on.
Force an interrupt and verify the
interrupt occurred.
44 Reserved
45 Reserved
46 Reserved
47
Set EISA Mode
If EISA non-volatile memory checksum is
good, execute EISA initialization.
If not, execute ISA tests an clear
EISA mode flag.
48 Reserved
49
Size Base and
Extended Memory
Size base memory from 256K to 640K and
extended memory above 1MB.
4A Reserved
4B Reserved
4C Reserved
4D Reserved
4E
Test Base and
Extended Memory
Test base memory from 256K to 640K and
extended memory above 1MB using
various patterns.
NOTE: This test is skipped in EISA
mode and can be skipped with ESC key
in ISA mode.
4F Reserved
50
USB init
Initialize USB controller
51 Reserved
