Every byte counts – Floating-point in less than 1 KB

How expensive in terms of code size are floating-point operations if the CPU does not have an floating-point unit (FPU)? In this article, I will investigate, based on Embedded Studio for ARM and a generic Cortex-M3 device, how big (or small) an entire application using basic float operations, add, sub, mul, and div, can be. […]

Every byte counts – Smallest “Hello world”

When searching on-line for small C-programs, there seems to be a lot of confusion about what is doable and what is not. There are a lot of posts wondering why even forĀ  minimal programs such as “Hello world” applications are so big, but not many explanations or fixes. I will show how to make a […]