private byte[] clearOperandBits(byte[] mask, byte[] value) {
		return InstructionSearchUtils.byteArrayAnd(mask, value);
	}
Clears out the parts of the given value array that correspond to
operands, and leaves the mnemonic alone. This can be done using a simple
AND of the two byte arrays.
<p>
eg:
<li>mask = 11111000 11000000</li>
<li>value = 01101100 10001110</li>
<li>--------------------------</li>
<li>ret = 01101000 10000000</li>

@param mask the mnemonic mask
@param value the full instruction value string
@return the cleared byte array
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/instructionsearch/ui/InsertBytesWidget.java