Difference between 12C508 & 12F629

Hello to all,

I am developing a RF based application in which I intend to use the 12C508 / 12F629. I am using PICBASIC PRO and Microcode Studio to write / compile the program.

There are a couple of things I would like to know :

1. What is the difference (with respect to programing) between the two chips using PICBASIC PRO.

2. Can I work on the Flash MCU and then port the code to the 12C508 by selecting the MCU in Microcode.

3. How do I declare the IO pins for both these chips.

Thank you.