A quick look at some Embedded Operating Systems

Real Time Operating Systems

Real time operating systems are designed for real time applications that need to accomplish a certain tasks with as little OS overhead as possible. Tasks like reading the sensors and displaying data.

You could write an infinite while loop to accomplish that but things will get complicated once you have multiple tasks. RTOS provide users with a task scheduler and several methods for synchronizing tasks and inter-task communication, as well as other stuff, not necessarily related to tasks.

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Introduction to GCC’s Extended ASM Format

As I’ve been reading Professional Assembly Language, I’ve come across chapter 13 and I liked it so much that I’m going to write a blog post about it. The book is quite nice if you’re interested in assembly for Linux.

Extended ASM format let’s you write assembly code that interacts with any type of C data, such as local variables, strings, numbers, goto labels and so on. The format produces cleaner, safer and more efficient code than the Basic ASM format.

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