None
An additional 16-bits of immediate is
-inserted into `FRT` to extend its accuracy to
-a full FP32, which is then stored in the usual FP64 Format within the FPR.
+inserted into the low-order half of the single-format value
+corresponding to the contents of FRT.
+
+**This instruction performs a Read-Modify-Write on FRT.**
+In hardware, `fishmv` may be macro-op-fused with `fmvis`.
-**This instruction performs a Read-Modify-Write.** *FRT is read, the
-additional
-16 bit immediate inserted, and the result also written to FRT.
-This is strategically similar to how `li` combined with `oris` is
-used to construct 32-bit Integers.
-`fishmv` may be macro-op-fused with `fmvis`*
Programmer's note:
+The use of these two instructions is strategically similar to
+how `li` combined with `oris` may be used to construct 32-bit Integers.
If a prior `fmvis` instruction had been used to
set the upper 16-bits from an FP32 value, `fishmv` may be used
to set the