fmrgew 0010000000000001, 0010000000000001 => 0010000000100000
fmrgew 0010000000000001, 80100094e0000359 => 0010000080100094
fmrgew 0010000000000001, 7ff0000000000000 => 001000007ff00000
fmrgew 0010000000000001, fff8000000000000 => 00100000fff80000
fmrgew 3fe00094e0000359, 0010000000000001 => 3fe0009400100000
fmrgew 3fe00094e0000359, 80100094e0000359 => 3fe0009480100094
fmrgew 3fe00094e0000359, 7ff0000000000000 => 3fe000947ff00000
fmrgew 3fe00094e0000359, fff8000000000000 => 3fe00094fff80000
fmrgew bfe0000000000001, 0010000000000001 => bfe0000000100000
fmrgew bfe0000000000001, 80100094e0000359 => bfe0000080100094
fmrgew bfe0000000000001, 7ff0000000000000 => bfe000007ff00000
fmrgew bfe0000000000001, fff8000000000000 => bfe00000fff80000
fmrgew 8000000000000000, 0010000000000001 => 8000000000100000
fmrgew 8000000000000000, 80100094e0000359 => 8000000080100094
fmrgew 8000000000000000, 7ff0000000000000 => 800000007ff00000
fmrgew 8000000000000000, fff8000000000000 => 80000000fff80000
fmrgew 7ff7ffffffffffff, 0010000000000001 => 7ff7ffff00100000
fmrgew 7ff7ffffffffffff, 80100094e0000359 => 7ff7ffff80100094
fmrgew 7ff7ffffffffffff, 7ff0000000000000 => 7ff7ffff7ff00000
fmrgew 7ff7ffffffffffff, fff8000000000000 => 7ff7fffffff80000
fmrgew fff8000000000000, 0010000000000001 => fff8000000100000
fmrgew fff8000000000000, 80100094e0000359 => fff8000080100094
fmrgew fff8000000000000, 7ff0000000000000 => fff800007ff00000
fmrgew fff8000000000000, fff8000000000000 => fff80000fff80000

fmrgow 0010000000000001, 0010000000000001 => 0000000100000001
fmrgow 0010000000000001, 80100094e0000359 => 00000001e0000359
fmrgow 0010000000000001, 7ff0000000000000 => 0000000100000000
fmrgow 0010000000000001, fff8000000000000 => 0000000100000000
fmrgow 3fe00094e0000359, 0010000000000001 => e000035900000001
fmrgow 3fe00094e0000359, 80100094e0000359 => e0000359e0000359
fmrgow 3fe00094e0000359, 7ff0000000000000 => e000035900000000
fmrgow 3fe00094e0000359, fff8000000000000 => e000035900000000
fmrgow bfe0000000000001, 0010000000000001 => 0000000100000001
fmrgow bfe0000000000001, 80100094e0000359 => 00000001e0000359
fmrgow bfe0000000000001, 7ff0000000000000 => 0000000100000000
fmrgow bfe0000000000001, fff8000000000000 => 0000000100000000
fmrgow 8000000000000000, 0010000000000001 => 0000000000000001
fmrgow 8000000000000000, 80100094e0000359 => 00000000e0000359
fmrgow 8000000000000000, 7ff0000000000000 => 0000000000000000
fmrgow 8000000000000000, fff8000000000000 => 0000000000000000
fmrgow 7ff7ffffffffffff, 0010000000000001 => ffffffff00000001
fmrgow 7ff7ffffffffffff, 80100094e0000359 => ffffffffe0000359
fmrgow 7ff7ffffffffffff, 7ff0000000000000 => ffffffff00000000
fmrgow 7ff7ffffffffffff, fff8000000000000 => ffffffff00000000
fmrgow fff8000000000000, 0010000000000001 => 0000000000000001
fmrgow fff8000000000000, 80100094e0000359 => 00000000e0000359
fmrgow fff8000000000000, 7ff0000000000000 => 0000000000000000
fmrgow fff8000000000000, fff8000000000000 => 0000000000000000

All done. Tested 2 different instructions