Share variables between verilog file and niosII application file(.c file)

my apologies for replying this late.

before trying the template wanted to get some clarity.

Is the above template applicable even while using On-chip memory? OR

Is it that on-chip memory can be handled in much simpler way and directly using hdl and niosII?

One more question where are the variables stored that are declared in hdl. (integer, reg). can't this variable's memory location be accessed using niosII.

thanks

-Jagdish