Hi: I've a system with 8751 with the boot and a flash with appliction program, i need to change the application program but by parts, i know that i can use wildcards to locate every .obj in a fixed position in flash memory, but the problem is how can i jump from one function to another, i mean , if i change the length of some functions in one module, their locations will change in spite of the starting location of the module, so if i try to jump to this function from another module it will fail. How can i locate functions dinamically, if its possible? thanks in advance. Antonio.