Instruction Manual
15
14
Test Timer 0 counter 2
15
Test 8259-1 interrupt mask register (port 21H)
16
Test 82592 interrupt mask register (port A1H)
17
Test stuck 8259’s interrupt bits.
18
Test 8259 interrupt functionality.
19
Test stuck NMI bits (verify NMI can be cleared).
1A
Display CPU clock.
1F
Set EISA mode.
20
Enable Slot 0 (initialize slot 0 - system board)
21-2F
Enable Slot 1-15 (initialize slot 1 to 15)
30
Size base memory and extended memory.
31
Test base memory and extended memory.
32
Test EISA extended memory. Skip in ISA mode.
3C
Setup enabled.
3D
Initialize and setup mouse.
3E
Setup cache controller.
BF
Chipset initialization (program chipset registers with setup values)
40
Display virus protest disabled or enabled.
41
Initialize floppy drive and controller.
42
Initialize hard drive and controller.
43
Detect and initialize the serial, parallel and game ports.
4E
Check manufacture POST loop.
4F
Security check.
50
Write CMOS (write all CMOS values back tp RAM and clear screen).
51
Pre-boot enabled (enable parity check, NMI and cache).
52
Initialize option ROMs (address range from 0C800H to 0EFFFFH).
