h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 220 h2. OS_Byte 220 h5. (SWI &06) |_<^{width:4em}. Entry | | |<^. R0|<^. 220 (&DC) | |<^. R1|<^. EOR value | |<^. R2|<^. AND value | |_<^{width:4em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Previous value | |<^. R2|<^. Corrupted | h4. Use The purpose of this call is to read or write the character that causes an escape condition when read from the input stream. h4. Notes The default is 27 (generated by the escape key). h4. See also * [[OS_Byte]]