Redstone Binary Subtraction - LRR #5
70,692
Published 2023-06-17
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Overflow Detection in 2's Complement • Twos Complement Addition & Overflow
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0:00 Introduction
1:01 Signed Magnitude
3:08 Modular Arithmetic
6:23 Two's Complement
8:56 Building a Subtractor
9:46 Building a Toggleable Adder/Subtractor
11:30 Sentiment
12:34 Another Cool Fact
13:08 One's Complement
13:37 Subscribe!
Music (in order):
Infraction - Photograph • Vlog lo-fi Anime Fashion by Infractio...
Harris Heller - Guilty Spark • Guilty Spark
Infraction - Sapporo • Lo-Fi Anime Fashion Chill by Infracti...
Harris Heller - Plethora • Plethora
Gareth Coker - Firefly in a Fairytale (Veritasium Theme) • Firefly in a Fairytale by Gareth Coke...
Alexander Nakarada - Favorite • Favorite
LuKremBo - Biscuit • (no copyright music) lofi type beat “...
Harris Heller - Streamline • Streamline
Harris Heller - Iridescent • Iridescent
Infraction - Serotonin • Vlog Lo-Fi Chill by Infraction [No Co...
PRNV - Happy High • Happy High || happy lofi music || PRN...
Milky Wayvers - Love in Japan • Love in Japan
Harris Heller - In My Shadow • In My Shadow
Harris Heller - Manhattan Project • Manhattan Project
Harris Heller - Singularity • Singularity
Mellowind - Bored • Bored || Vibin in the 80s
All Comments (21)
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lrr is such a force of nature, not even SICKNESS could stop HIM!!!
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Matt explains the most complex thing so well is not normal
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GUYS WE FINALLY KNOW WHY INVERTING AND ADDING 1 WORKS!!! I'M SO HAPPY :)
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I don't even like minecraft. I'm a computer scientist and these videos are a really entertaining way of relearning what I already know in a new environment. Great work!
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12:40 You can also see how thinking about the last bit has a negative value shows the inversion by the series of numbers counting up from negative 8.
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As a developer with a computer science degree, I of course knew about two's compliment; but I never stopped to wonder why the conversion algorithm of "invert + 1" works. When you showed the algebraic connection to modular arithmetic, my mind was blown. Thank you for the education! 🙂
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I learn more in 1 min 30s with this video than in 5 years of school with professors
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Love that veritasium music when explaining using clock
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Au-delà de l'aspect Minecraft, c'est même super bien expliqué sur l'aspect de l'informatique bien joué à toi et bisous de France
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It's kinda weird to me that you learned two's complement using modular arithmetic before learning the negating most significant bit trick. I learned it other way around and, honestly, your way is probably better, because knowing math behind why it works is better than just blindly use the trick.
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Great revision of my comp sci classes with a Minecraft aspect on top, love it!
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CS student here; great videos. It was by sheer chance I happened to watch one of these before my first class on low level computing, and now I always hear my professor talking about the things you do here. Really well done.
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Great vid as always, keep up the work Matt
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This is the best explanation of 2’s Complement I’ve heard so far! Thank you!
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It's hard for me to process this, but it's good. Love that you show how it works on practice so it was A LOT easier to understand. Hope to see more of this.
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Your actually making computer science even more fun and understanding. Thanks A LOT
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You are actually the best. These are so well explained, and amazingly made. Learning these concepts on fun and easy, keep it up!
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This series is incredible! Recently decided I wanted to learn redstone in its entirely, and although this focuses more on redstone logic instead of the whackier items like pistons, skulk, and observers. I really feel like this is foundational knowledge that I'll be able to take advantage of in future projects and learnings. Absolutely amazing work, my man, thank you.
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These videos are great, I am learning so much! Thank you for this awesome series!
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we already knew about two's compliment, but hearing that it's based on modular arithmetic made us truly understand it for the first time!!
