h6. [[OS SWI Calls]] h6(. » [[OS_Memory]] h6((. » OS_Memory 25 h2. OS_Memory 25 h5. (SWI &68) |_<^{width:4em}. Entry | | |<^. R0 |<^. 25, all flag bits reserved | |<^. R1 |<^. [[OS_Memory 9 Controller Numbers|Controller number]] | |_<^{width:4em}. Exit | | |<^. R0 |<^. Preserved | |<^. R1 |<^. Controller base physical address | h4. Use The purpose of this call is to check for the presence of a given controller and return its base physical address if present. This call was created by RISCOS Ltd. to complement [[OS_Memory 9]]. The two calls use identical controller numbers. There is currently no support for this call under RISC OS 5. h4. See also * [[OS_Memory]] * [[OS_Memory 9 Controller Numbers]] * [[OS_Memory 9]]