h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 114 h2. OS_Byte 114 h5. (SWI &06) |_<^{width:3em}. Entry | | |<^. R0|<^. 114 (&72) | |/2<^. R1|<^. 0 = modes will be shadow | |<^. 1 = modes will be non-shadow | |_<^{width:3em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Previous shadow state | |<^. R2|<^. Corrupted | h4. Use The purpose of this call is to write the shadow/non-shadow state to memory. h4. Notes This call determines whether future changes to numbered screen modes will be forced to use shadow state. [[OS_Byte 112]] and [[OS_Byte 113]] control the use of shadow banks. Shadow state requires twice the amount of RAM than the equivalent non-shadow mode since two copies of the screen are stored in memory. h4. See also * [[OS_Byte]] * [[OS_Byte 112]] * [[OS_Byte 113]] * [[*Shadow]]