text: public void normalise64bit() {int oldBitLen = _significand.bitLength();int sc = oldBitLen - C_64;if (sc == 0) {return;}if (sc < 0) {throw new IllegalStateException("Not enough precision");}_binaryExponent += sc;if (sc > 32) {int highShift = (sc-1) & 0xFFFFE0;_significand = _significand.shiftRight(highShift);sc -= highShift;oldBitLen -= highShift;}if (sc < 1) {throw new IllegalStateException();}_significand = Rounder.round(_significand, sc);if (_significand.bitLength() > oldBitLen) {sc++;_binaryExponent++;}_significand = _significand.shiftRight(sc);}