public BigInteger toBigInteger() {
		BigInteger res = unscaled.shiftRight(fracbits - scale - 1);
		if (sign < 0) {
			return res.negate();
		}
		return res;
	}
@return the truncated integer form of this BigFloat
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcode/floatformat/BigFloat.java