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