h6. [[OS SWI Calls]] h6(. » [[OS_ScreenMode]] h6((. » OS_ScreenMode 9 h2. OS_ScreenMode 9 h5. (SWI &65) |_<^{width:4em}. Entry | | |<^. R0 |<^. 9 (RISC OS 6 only) | |<^. R1 |<^. Bank number for VDU code, 1+ | h4. Use This call is used in RISC OS 6 *only* to implement [[OS_Byte 112]]. h4. Notes Calls [[VideoV]].