Bitfields for device request status |
| Bit | Description |
|---|---|
|
15 |
error |
|
14 - 11 |
reserved |
|
10 |
??? set by DOS kernel on entry to some driver calls |
|
9 |
busy |
|
8 |
done (may be clear on return under European MS-DOS 4.0) |
|
7 - 0 |
error code if bit 15 set (see #02598) |