How to generate gold code sequence

I am using cdma technology to build a algorithm and have been using hadamard matrix to generate spreading codes. But, the problem is when I reduce the processing gain used in my code the failure rate of correctly detecting the signal transmitted by the transmitted increases.

I am trying to move from hadamard matrix to gold code sequence genrator. But I am not sure about how should I start or what syntax I should use. Directly using the gold code function doesn't seem like to be an option for me as i think it wont be compatible with the rest of the code that I have build. Can someone please help me with the method to be able to generate gold codes in matlab????