h6. [[OS SWI Calls]] h6(. » [[OS_Word]] h6((. » [[OS_Word 21]] h6(((. » OS_Word 21,6 h2. OS_Word 21,6 h5. (SWI &07) |_<^{width:4em}. Entry | | |<^. R0 |<^. 21 (&15) | |<^. R1 |<^. Pointer to block, containing:| |>^. +0|<^. 6 (reason code)| |_<^{width:4em}. Exit | | |<^. R0 |<^. Preserved| |<^. R1 |<^. Preserved, block updated| |>^. +1|<^. X LSB| |>^. +2|<^. X MSB| |>^. +3|<^. Y LSB| |>^. +4|<^. Y MSB| h4. Use The purpose of this call is to read the pointer (not mouse) position from the two signed 16-bit values. h4. Notes If the mouse and pointer are linked, then the pointer position will be updated with the mouse position each VSync interrupt. h4. See also * [[OS_Word]] * [[OS_Word 21]]