Implementing a flow “(1) if {…} else if {…} … (2)” in Assembly

Question

I have the following flow in C:

// some stuff1
//................


if (something1) {
    func1();
    func2();
} else if (something2) {
    func3();
    func4()         


        

Answer 1

As i see it you have two options:

1. Use functions like you said. then all you need to do is call func. the advantage is readability and more slick code as well as automatic jump back to where you called the function, but it will cost you the overhead of using a function (setting up the registers and pushing and popping the stack pointer).
2. Use labels. this is straightforward. But you will need to declare a label for getting back to the function, or save the return address somewhere, which affects readability.

Anyway your conditional piece of code :

cmp [some_struc], SOME_CONST2 

seems OK.