Need Fixed point version of conv2

I'm trying, for the first time, to convert my Image Processing code from Floating Point to Fixed Point to make it easier to implement in hardware. I tried to use Fixed-Point Converter to do the conversion automatically. It said that the call to conv2 in my code needed a replacement function. Does anyone know where I might be able to find one? Thanks

[John D'Errico]

We cannot supply the exact code for conv2 of course.

So you should write it yourself. A convolution is just a simple sum, some nested loops.