Entry | |
---|---|
R0 | 3 (reason code) |
R1 | Pointer device number |
R2 | Change in X position |
R3 | Change in Y position |
This vector is called by the pointer driver to notify the kernel when a pointer movement is detected.
When called the kernel will stop polling and rely on the driver notifying further movements through this interface. Positions are signed 32-bit values.
This particular reason code is only available from RISC OS 5 onwards.