Values for disk I/O status |
| Value | Description |
|---|---|
|
80h |
device failed to respond (timeout) |
|
40h |
seek operation failed |
|
20h |
controller failed |
|
10h |
data error (bad CRC) |
|
08h |
DMA failure |
|
04h |
requested sector not found |
|
03h |
write-protected disk (INT 26 only) |
|
02h |
bad address mark |
|
01h |
bad command |