| Entry | |
|---|---|
| R4 | Reason Code |
This vector is called whenever a call is made to read or write the palette. It has multiple uses, depending on the reason code in R0.
| # | |
|---|---|
| 1 | Read palette |
| 2 | Set palette |
| 3 | Set first flash state |
| 4 | Set second flash state |
| 5 | Set default palette |
| 6 | Blank screen |
| 7 | Read palette entries |
| 8 | Write palette entries |
| 9 | Set gamma correction tables |
| Other registers dependant on call | |