private long setSign(long x, boolean sign) {
		if (!sign) {
			return x; // Assume bit is already zero
		}
		long mask = 1;
		mask <<= signbit_pos;
		x |= mask; // Stick in the bit
		return x;
	}
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