|0: Normal entry|
|R4||Bits 0-23: 10 (reason code)|
|Bits 24-31: Driver number|
|-||All other registers preserved|
The kernel issues this call to instruct the driver to update the display palette. The appropriate driver should respond by performing the requested action and setting R4 to 0 to claim the call.
For details of the colour formats used with the different palettes, see GraphicsV palette colours.