How does Assembly work — A Swift guide

Fun!

Photo by Vadim Sherbakov on Unsplash

Assembly programming is often seen as rather a black box for Front-End developers.

This article is about using Swift to see something about assembly programming. This is going to be interesting!

Difficulty: Beginner | Easy | Normal | Challenging

This article has been developed using Xcode 12.0, and Swift 5.3

Prerequisites:

- You will be expected to be aware how to make a Single View Application, or a Playground to run Swift code

• Some of the functions use the inout parameters

The challenge

Imagine that you have a programming language that has just four operations — ZERO, ASSIGN, INCR and LOOP.

The four operations are as described;

- ZERO: Sets an input parameter (x) to zero (0)

- ASSIGN: This function will assign the value of y to x (x = y)

- INCR: Once this function is called it will assign x + 1 to the input parameter (x)

- LOOP: Operations written within brackets will be executed the number specified by the parameter (x) times