private String validateMnemonic(String mnemonic) {
		int space = mnemonic.indexOf(" ");			// Get the location of the closest space

		if (space == 3) {
			mnemonic = mnemonic.substring(0, 3);	// Get the 3 char mnemonic
		} else if (space == -1) ;					// Mnemonic is the entire line

		for (String i : mnemonics) {
			if (mnemonic.equals(i)) {				// Check if the mnemonic matches up w/ a known mnemonic
				return mnemonic;					// Return the valid mnemonic
			}
		}

		Error.codeError(line, lineNumber, 3);		// 3 -- The mnemonic is not valid
		error = true;
		return "ERROR";								// Return an error
	}