The Easy Guide to Mastering Bit Manipulation in Embedded C - Part 2

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Learn how to write more efficient code by using Bit Manipulation & Bit Masking in your Embedded projects by watching this intuitive explanation of the following bitwise operators: XOR, Left and Right Shifting
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0:00 Intro
1:12 What XOR & Bit Shifting are useful for
3:23 XOR operator
4:27 Bit Shifting
5:35 Multiplication and division - bit shifting
7:35 Logicical Shifting, Arithmetic Shifting, Rotating
My name is Fabi and I am an Engineer and Tech Enthusiast from Romania. On my CZcams channel I do thorough reviews of gadgets, showcase my programming projects and show you which cars I am driving.
In today's video we'll talk about bit manipulation and bit masking, more specifically, the XOR or exclusive or operator and bit shifting. In the first part of this video we discussed how to use AND, OR and the COMPLEMENT OPERATOR to read a single or multiple bits out of a register and write either a 1 or a 0 back in a register. It's very important to master these early as working with embedded involves a lot writing bits into registers and checking for bits out of registers. Additionally, bitwise operations are almost guaranteed to come up in technical interviews, due to how often they are used in day to day work by most embedded developers.
So, what would we use the XOR operator and bit shifting for? XOR is useful for toggling bits, XOR-ing with one will always flip the current value of the bit and bit shifting can be obviously used to shift bits from their current position to another desired position. Another, less obvious use is that it allows for very efficient multiplication and division if multiplying or dividing by a power of 2. Most microcontrollers actually have 3 types of shifting: logical shifting, arithmetic shifting and rotating.

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Learn more about Embedded Systems through my Embedded Systems Explained series: czcams.com/play/PLeAb9_hv082weQ10WcvFfLBlNcCYXlQ4q.html
The Easy Guide to Mastering Bit Manipulation in Embedded C - Part 2: czcams.com/video/7LhsxYNAXvw/video.html