private FloatKind extractKind(BigInteger l) {
		int exp = extractExponentCode(l);
		if (exp == maxexponent) {
			BigInteger frac = extractFractionalCode(l);
			if (BigInteger.ZERO.equals(frac)) {
				return FloatKind.INFINITE;
			}
			if (BigInteger.ONE.equals(frac.shiftRight(frac_size - 1))) {
				return FloatKind.QUIET_NAN;
			}
			return FloatKind.SIGNALING_NAN;
		}
		return FloatKind.FINITE;
	}
Get the minimum finite subnormal {@link BigFloat} value for this format

@return minimum finite subnormal {@link BigFloat} value
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcode/floatformat/FloatFormat.java