h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 241 h2. OS_Byte 241 h5. (SWI &06) |_<^{width:3em}. Entry | | |<^. R0|<^. 241 (&F1) | |<^. R1|<^. EOR value | |<^. R1|<^. AND value | |_<^{width:3em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Value before being overwritten | |<^. R2|<^. Corrupted | h4. Use The purpose of this call is to alter a location that is unused by the OS, which can be used to pass results between applications. h4. Notes The location may also be written with [[OS_Byte 1]]. System variables now provide a much better way of passing results. h4. See also * [[OS_Byte]] * [[OS_Byte 1]]