Programming in Assembler for IoT and Embedded Systems

Programming in Assembler plays a crucial role in IoT and embedded systems. These systems consist of small, simple devices with built-in microprocessors with significant capabilities. To effectively utilize existing hardware resources, it is necessary to have simple, inexpensive, and direct access to the hardware from the software level. One way to achieve this is through programming in Assembler. It is possible to use assembler code directly in many environments, e.g., for Arduino, Raspberry, etc.

Assembler allows writing code that is directly translated into processor instructions. As a result, programs are extremely fast and efficient. In embedded systems, where resources are limited, every optimization matters. Programming in Assembler allows for the maximum utilization of available hardware resources. The ability to directly control processor registers, input/output ports, and other hardware components enables the creation of more advanced and precise applications.

Many ready-made libraries utilize low-level assembler functions. Unfortunately, it is often necessary to write assembler code independently. Programming in Assembler requires a deep understanding of processor architecture. Understanding how the processor works at the instruction level improves system design and optimization.