Talk:Technical Reference:State Definition: Difference between revisions
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Revision as of 00:23, 1 January 2010
State Vector
The section on state vectors is totally wrong. After reverse-engineering some data files with the help of the BCI2000Viewer, it appears that the state vectors are actually encoded in reverse-big-endian. In other words, if smaller numbers represent lower order bits, then the state vector layout mentioned in this section would actually be encoded as follows:
| State Vector Byte 1 | State Vector Byte 2 | State Vector Byte 3 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Running | SourceTime | unused | |||||||||||||||||||||
| 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | |||||||
Which on the physical machine actually maps to:
| State Vector Byte 1 | State Vector Byte 2 | State Vector Byte 3 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Running | SourceTime | unused | |||||||||||||||||||||
| 0 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 15 | |||||||