include ATAN2, LOG, NORMALISE, YUV2RGB, Khronos Compliance FP mode
(different from both IEEE754 and "NI" mode), and many more. Many of
these may turn out to be useful in a wider context: they however need
-to be fully isolated behind "mode-setting".
+to be fully isolated behind "mode-setting" before being in any way
+considered for Standards-track formal adoption.
Some mode-setting instructions are privileged, i.e can only be set by
the kernel (e.g 32 or 64 bit mode). Most of the escape sequences that we