Table 58

+=====-========-========-========-========-========-========-========-========+ 
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    |
|Byte |        |        |        |        |        |        |        |        |
|=====+=======================================================================|
| 0   |                           Operation code (3Ch)                        |
|-----+-----------------------------------------------------------------------|
| 1   | Logical unit number      |     Reserved    |           Mode           |
|-----+-----------------------------------------------------------------------|
| 2   |                           Buffer ID                                   |
|-----+-----------------------------------------------------------------------|
| 3   | (MSB)                                                                 |
|-----+---                                                                 ---|
| 4   |                           Buffer offset                               |
|-----+---                                                                 ---|
| 5   |                                                                 (LSB) |
|-----+-----------------------------------------------------------------------|
| 6   | (MSB)                                                                 |
|-----+---                                                                 ---|
| 7   |                           Allocation length                           |
|-----+---                                                                 ---|
| 8   |                                                                 (LSB) |
|-----+-----------------------------------------------------------------------|
| 9   |                           Control                                     |
+=============================================================================+