1111nnnnmmmm1100
Available only when SZ=0
sr ← ZeroExtend32(SR);
op1 ← FloatValue32(FRm);
IF (FpuIsDisabled(sr) AND IsDelaySlot())
THROW SLOTFPUDIS;
IF (FpuIsDisabled(sr))
THROW FPUDIS;
op2 ← op1;
FRn ← FloatRegister32(op2);