fsgnjx.s

The `fsgnjx.s` instruction produces a result that takes all bits except the sign bit from `fs1`. The result's sign bit is the XOR of sign bits of `fs1` and `fs2`, and the result is written to the destination register `fd`. Sign-injection instructions do not set floating-point exception flags, nor do they canonicalize NaNs.

fsgnjx.s fd, fs1, fs2