function _byteToChar(b) {
	// If the byte is not printable, use a dot instead
	return (b >= 32 && b <= 126) ? String.fromCharCode(b) : _NON_PRINTABLE_CHAR;
}
Converts a byte to its corresponding character.
If the byte is not printable, returns a non-printable character.

@param {number} b - The byte to convert.
@returns {string} - The corresponding character.