120 | Appendix A: AMIBIOS POST Checkpoint Codes |
POST Checkpoint Codes
Bootblock Recovery Codes
The bootblock recovery checkpoint codes are listed in order of execution:
Checkpoint Code | Description |
|
|
E0h | The onboard floppy controller if available is |
| initialized. Next, beginning the base 512 KB |
| memory test. |
|
|
E1h | Initializing the interrupt vector table next. |
|
|
E2h | Initializing the DMA and Interrupt controllers next. |
|
|
E6h | Enabling the floppy drive controller and Timer |
| IRQs. Enabling internal cache memory. |
|
|
Edh | Initializing the floppy drive. |
|
|
Eeh | Looking for a floppy diskette in drive A:. Reading |
| the first sector of the diskette. |
|
|
Efh | A read error occurred while reading the floppy |
| drive in drive A:. |
|
|
F0h | Next, searching for the AMIBOOT.ROM file in the |
| root directory. |
|
|
F1h | The AMIBOOT.ROM file is not in the root directory. |
|
|
F2h | Next, reading and analyzing the floppy diskette |
| FAT to find the clusters occupied by the |
| AMIBOOT.ROM file. |
|
|
F3h | Next, reading the AMIBOOT.ROM file, cluster by |
| cluster. |
|
|
F4h | The AMIBOOT.ROM file is not the correct size. |
|
|
F5h | Next, disabling internal cache memory. |
|
|
FBh | Next, detecting the type of flash ROM. |
|
|
