h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 251 h2. OS_Byte 251 h5. (SWI &06) |_<^{width:4em}. Entry | | |<^. R0|<^. 251 (&FB) | |<^. R1|<^. 0 | |<^. R2|<^. 255 | |_<^{width:4em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Display screen bank | |<^. R2|<^. Corrupted | h4. Use The purpose of this call is to read the screen bank used by the display, as set by [[OS_Byte 113]]. h4. Notes This call should not be used to write the value - doing so would only change the value in memory, without affecting the hardware. h4. See also * [[OS_Byte]] * [[OS_Byte 113]]