The SPLS structure is stored in both the plcfspl and the plcfgram.
| b10 | b16 | field | type | size | bitfield | comments |
| 0 | 0 | splf | short | :4 | 000F | spelling result flag: 2 maybe dirty: check if have time 3 dirty: needs to be checked 4 recently edited 5 cannot be checked 7 clean: checked and error-free 10 error 11 repeated word error 12 unknown word error |
| fError | short | :1 | 0010 | set to 1 when SPLS marks an error | ||
| :11 | FFE0 | reserved |
cbSPLS (count of bytes of SPLS) is 2