Digital Equipment HiNote VP 700 Series, Справочное руководство по обслуживанию, Страница: 105 / 149

Troubleshooting
4-20
Code POST Routine Description
76h Check status bits for keyboard-related failures.
Display error messages on the screen.
7Ch Initialize the hardware interrupt vectors from 08
to 0F and from 70h to 77H. Also set the interrupt
vectors from 60h to 66H to zero.
7Eh The Coprocessor initialization test. Use the
floating point instructions to determine if a
coprocessor exists instead of the ET bit in CR0.
80h Disable onboard COM and LPT ports before
testing for presence of external I/O devices..
81h Run late device initialization routines.
82h Test and identify RS232 ports
83h Configure Fisk Disk Controller
85h Display any ESCD read errors and configure all
PnP ISA devices.
86 Initialize onboard I/O and BDA according to
CMOS and presence of external devices.
87h Initialize motherboard configurable devices.
89h Enable non-maskable interrupts.
8Ah Initialize Extended BIOS Data Area and initialize
the mouse.
8Bh Setup interrupt vector and present bit in
Equipment byte.
continued