h6. [[OS SWI Calls]] h6(. » [[OS_Byte]] h6((. » OS_Byte 237 h2. OS_Byte 237 h5. (SWI &06) |_<^{width:4em}. Entry | | |<^. R0|<^. 237 (&ED) | |<^. R1|<^. EOR value | |<^. R2|<^. AND value | |_<^{width:4em}. Exit|_<^. | |<^. R0|<^. Preserved | |<^. R1|<^. Previous state | |<^. R2|<^. Numeric keypad interpretation (see [[OS_Byte 238]])| h4. Use The purpose of this call is to read or write the cursor key status. h4. Notes The state may also be written with [[OS_Byte 4]]. h4. See also * [[OS_Byte]] * [[OS_Byte 3]] * [[OS_Byte 236]]