FFVII - The Overflow Glitch
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- Опубликовано: 3 июл 2024
- PLEASE LEAVE A LIKE if you'd like to see more Final Fantasy 7 stuff on this channel.
In this Final Fantasy VII tutorial I give an in-depth look at the overflow glitch, the calculations behind it and the necessary equipment to do it.
If you're having trouble overflowing, make sure your character has max stats. For more info on that, watch my source farming video here: • FFVII - The Ultimate S...
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4get the h8rs. Always.
4-8Productions 
Игры
the amount of love and attention this game keeps receiving after 22 years is astounding. 1997 has been really a good year
Best game ever made
It’s because the game is actually a mess in terms of how it’s programmed. People have been discovering things about the game since 1997. Because of how it’s programmed, people are still finding things to this day.
*sad Alundra 2 noises*
Right…? It took square long to realize how big of a market FFVII itself had….they’ve been literally sitting on a gold mine for decades smh 🤦🏼♂️
Really been* sorry lol!
The weird symbols is just the enemy saying "i don't need this negativity I'm out"
If FF7 was a subject in school, you would have gotten a PHD in FF7
Binary is rather simple though.
@@linusoredsson7111 i wouldn't say its as easy as say, cutting a hot knife through butter, for example
@@bananas7126 I learnt it pretty quickly. It's basically just adding and subbtracting ones. You just need to know how it works.
Bananas712. I keep imagining what you said your giving me nightmares
@@darkpyro613 Lmaoo, it was Xenoblade refrence
I like to think that in Remake the devs were like "okay, smart guy, overflow this" and gave Barret a billion tiny attacks for his fight command instead.
Which, to be fair, makes sense because it’s a machine gun, so each tiny attack is meant to be one bullet.
Vincent: *uses hero drinks*
Emerald Weapon: *why do i hear boss music?*
ROFL!!!
U dont need hero drinks not necessary😂😅
If anyone is curious, Vincent's ultimate weapon formula with max kills yields a significantly higher number 255(65535/128 /10)+10 than Barret's formula with max KotR 255(4000000/10000 /16)+1
Yup and don't need hero drinks not necessary 8 mastered deathblow materials on the death penalty and a curse ring and a gigas armlet NOTHING not even ruby survives I've been doing it since day 1
You sure you overflowed Ruby Weapon and not something else? He has super high defense
"You might be wondering why are we making negative damage, but to answer that we need to talk about Parallel Universes"
Reminds me of playing Mystic Quest many years ago and underflowing the Dark King to death with Cure
good times
Loved Mystic Quest.
Production value and script... so well written... must like and subscribe...
Thank you! We don't make money off of our videos, and I work alone on the FFVII stuff, so I'm glad you enjoyed it ;)
I never thought I'd be going this deep into FF7 info, but I really like it.
*Now that's a lot of damage*
"I sawed this EMERALD WEAPON in HALF!"
-4-8 Productions
Massive damage to giant enemy crab
Nothing some Flex Tape can't fix.
Amen
Actually, it's negative damage! Wasn't you paying attention lol. Cannot be a lot of damage if the game treats it as less than 0.
By far the best FF7 vids on RUclips, good stuff man. Looking forward to the next one.
i am so grateful that your channel exists to tell me *everything anyone has ever wanted to know about Final Fantasy VII and then some* :D
That was a fantastic explanation of what happens with the damage, and I appreciate that. Very well put.
Your videos are. In depth, easy to follow, funny, you articulate very well and speak very well. I'm glad i found this since I'm playing ff7 for the first time in almost 20 years
The symbols aren't the damage amount, it's the enemy saying FUCK before it dies.
Amazing videos I've stumbled across your videos recently as I've bought FF7 on PS4 for nostalgia and I must say the attention to detail and in-depth analysis on the game that you do is astonishing.
Hey thanks my man ;)
I thought i was technical with this game until i started watching these videos. I think its crazy that i have been playing the same game for 20 years and im still finding secret items and character combinations i never thought of. Truly a great game and love the 4-8 videos!
please do a save editor video
Definitely. I think that was Black Chocobo he was using, but I would love to know how to use it better.
it is black chocobo@@Skaera75b
Take me back to when this video was uploaded, please.
Wow! You really have mastered FFVII! Bravo.
A new FFVII was born.
Every other video you've put out I had already known, but this, THIS I had no idea. Now I must try it....
Nice Video, it`s the first time I see this glitch. Thanks a lot for the good explaining. That is really interesting to know how this works. ^^
The numbers nerd in me appreciated this vid. Thanks!
@4-8Productions it appears that the reason the damage shows the different letters and such is because when you translate ascii (or if they aren't using ascii it would be translated much the same) to character from damage number, you simply decompose (usually a logarithmic function) each of the place values as a single stand-alone digit and add 48 to it. Upon decomposition of a negative number you can overshot and undershot in predictable ways different characters within character set. You get graphical glitches due to rendering junk. I bet if you find the pixel bounds of the damage textbox you can simply search memory using the data shown to locate where exactly it pulled from. Fun stuff.
As hilarious as it is to see that green bastard go down, I want the glory of killing Emerald weapon the legit way
i hope you beat emerald weapon by now
As much as I respect what went into the methods in this video, what I put myself through to beat Emerald is nothing compared to what I just learned.
@@PinheadPunk yes. Pre-commonplace internet, and all we really had at the time was basic information obtained from the same few stupid websites and from prima guides. Back then you were alone trying to figure this shit out. I still remember my first victory over emerald. It was awesome and hard fought
@@KM-je6bf omnislash mimed then kotr mimed and done
Hopefully I could make it to one of your streams good job buddy!
Wow. This was.. Crazy. Excellent video!
No one told me there would be math :/
dragon_blade Adell?
everything is based on math...
But you play Disgaea... One would figure a jrpg player would at least appreciate math 😂
In what world would a glitch like this not involve math
Definately would like to see a vid on how to use a save game editor please! Very helpful vid here as well as far as learning how damage overflow works. I only heard about it, never fully knew about it in this much detail till now.
6:40 For a second I thought "OMG" popped up instead of numbers.
😂🤣
I would love for you to make a video about the save-game editor. I absolutely love your Final Fantasy VII videos.
my friend I am going to subcribe to take another look at final fantasy 7 with your guides. thank you for your investment into this game and sharing your knowledge.
Those math equations at 1:00 look like the work of Gamefaqs FAQ writer Absolute Steve, my favorite FF7 FAQ writer for having the same detailed, systematic, analytical style as you, using actual math to break down everything important. But sometimes, a video helps to understand such things more quickly, so thank you for your work.
Love your videos man! You’re an intelligent person. FF7 is still an all time favorite game of mine. #1997
notice that the only characters that can overflow
are all using guns
all 2
k
Collect all 2!
Collect em all pokemon!
Don't bring a sword to a gun fight :D
GREAT CONTENT... KEEP IT UP!
lol. i love the random shit you throw into the videos. cracks me up.
Great video here well explained
this was a good explanation and it was hilarious
Great video! I really learn't a lot from it.
i had no idea about this, that said i guess bugs like this slip through the cracks especially in older coded games.
heh really reminds me of my binary learning :D
blackendrose123 It wasn't really about slipping through the cracks, the programmers knew how broken the game was but feared it would become more broken if they continued to tamper with it. I explain all of this and show you what else they missed in my next video, if you're interested come check it out next week. If not, well at least your avatar is eevee, and that's always cool.
4-8Productions im always curious about these kinds of glitches, helps me understand abit more how the coding works behind it, im abit of a geek in that regard :D. I may indeed check it out :)
First you say you need to overflow the integer by getting over 2 billion something damage and then later say that you're only actually doing 262,000 damage, what's the deal with this?
It's not an actual integer, but either a pre-multiplied one or a so-called fixed-point value, they differ in that fixed is the same as a pre-multiplied by factors of two only (which is essentially the same shit as ints, and the difference happens only during a text output or should there be a fixed-to-integer conversion during some mixed-value operations - the reason is the ability to use the existing integer calculation hardware and still be able to do div-then-mul sequences without suffering that much from truncation issues.
@@TheBypasser link plz with what you are saying so I can thoroughly understand.
@@panagiotisgoulas8539 What link? It is just simple math and some common sense :) For an actual example, just Google some digital thermometer datasheet, say the very popular DS18B20 or DS7505 use 8.8 fixed-point output (the named documents also contain reference output code tables for the easier debugging, so you can see how it all works).
this is the best explaination that I've seen of a glith in my entire life!!!. Mindblow!!!!
Then im sorty for you because his explanation was really bad.
I would love to see a video about the save editor
I'd be happy with just the link to one. Great video.
A FF7 save game editor video would be sweet!!
You know what I'm actually going to donate to your patreon after I'm not poor. You do a lot of work to actually dissect and explain all of the programming involved in FF7. Thank you and wish me luck at becoming not poor.
So how did it turn out? Not poor yet?
Are you not poor yet
Just found your channel. Good stuff
Only one word for this vid.... Awesome!
It is very unlikely the game checks if enemy health overflows since it doesn't do it for damage.
Here's a better explanation: subtracting INT_MIN from any positive int will overflow it and result in negative int. Since negative health < 0 -> enemy ded.
The reason why overflowing damage can one hit enemies and plain old high damage can't is because it's less than max dmg.
I guess it is even more fun. The damage is treated as an (un)signed fixed-point value (hence only 200k-something to overflow, not 2M), while the enemy HP is treated as an integer. Now what happens is the fixed-point value is right-shifted to get rid of one's fractional part (if doing it IEEE-friendly, you should also add back the last bit shifted out), and next is subtracted from the enemy HP value while the next branch is based on the carry flag. If the mentioned shift is arithmetic (that is, one that preserves and copies the MSB), what you get from a damage value with the MSB set is a huge final int with the top bits all set. Subtracting one from any sane value triggers a carry (in fact, both signed and unsigned addition and subtraction work the very same way, so the signed-unsigned question doesn't have any effect here).
I love the way that they used a signed integer for the damage calculation, but then didn't use negative values for healing, making the need for a signed integer entirely pointless :P
This was very interesting. I never realized this glitch was the result of a mathematical error involving signs.
Cant wait for the Overflow materia in the remake
talk about explaining it fully lol nice vid!
I don't even watch final fantasy content but RUclips decided today was the day I see this old video.
very good video, I would like to see videos about the magic of morthing sources.
I loved all of this...
Now I wonder what overflow healing would do.
Instant kill? Because that would be killing with kindness.
Kill em with kindness
+MrEJ2003 No because even though you could pair, I think fire magic, to heal it his def is still really high. Cause if that were the case Im sure it would have been found by now
it would kill the character
I like how the shot at the start basically says "is[GLITCH]"
If you've got 4 maxed knights of the round do you really need an overflow glitch?
Did you ever make a video about the save game editor? Thinking about playing around with this game and would be curious to see a tutorial from you. Love watching all these videos!
It is very much appreciated for you to speak of this in coding terms. I very much enjoy learning this kind of thing about FF7, since programming is much of my life.
Are you amenable to topics for suggestion for your program?
Videos like this make me miss the old RUclips
So you're basically unborning an enemy.... great video by the way. Great content in general.
Get this man to 100k
This episode was written so well. I was like “but how do you do it?” And then you said “but how do you do it?”
That was a fucking awesome video Death!
Lol I know I'm kinda late to the party and highly doubt you'll see this but damn it man. FF7 is my favorite FF game and quite possibly my favorite game in general. Here I thought I've seen and heard it all. Thought I figured everything out about this janky ass game I love so dearly and then boom. It's 2017 I randomly spot one of your vids about glitches and oddities. It kinda blew my mind and showed me how little I knew about this game I claimed to love so much. So I continue watching all the tutorial videos on the game and honestly this one is the one that breaks me. I finish this video and I just sat there thinking to myself. "THE FUCK HAVE I EVEN BEEN DOING IN THIS GAME!" It rekindled a dying flame this game has had for easily over 8 years. Like don't get me wrong I'll play through casually at least twice a year. But seeing this awoken the power of youth in me and as I'm writing this out to you I'm listening to the opening credits of Final Fantasy VII. But this isn't going to be no casual play through. I'm digging in and I'm going to do another max everyone and materia run. The last time I've done this I was 15 going on 16 no job no responsibilitys (other than maxing the fuck out of my team) and an entire summers vacation. Yeah times may be a little different now. I have a job and multiple responsibilities, but I have to much damn pride and after watching this and not attempting it would be just disrespectful to the game I've loved ever since I was a wee lad still trying to figure out the differences between the buttons on the controller! Honestly once I get there. Once I complete my quest of redemption, I might even upload my video of the crew in all their glory. So wish me luck you inspiring bastered as I begin my journey. Lol you can tell I'm serious about this when I already have everyone's name already determined xD. Cloud = TBags
Barret= Chef
Tifa= Double D
Areith Aries =OldNews
Red XIII= K9Style
Yuffie= DumbBitch
Cid= SirGrumps
CaitSith= MrMeows
Vincent= SuperVamp
Man I'm so stoked :D but I'm already dreading the fuckin chocobo breeding RnG -_- I'm honestly surprised my ps2 withstood the beating it took last max everyone and thing run. Only thing that had to be replaced out of everything was the controller and that was for obvious reasons xD. But enough talk I'm out of here to start my journey to become a Pokemon master!... Wait wrong game, to start my journey of pure and unadulterated button smashing. And when the time comes and I've proven myself worthy just know I'll come a knocken:p
I wish vii was like harder some how just like how it was when I was well 7 haha. I remember being stuck on “the Materia keeper” for litteraly a month and it was so cool when I finally beat it! I want that feeling again :(
This guys awesome!! and to think I found this page wen I was taking a poop at work . Best w
luis ayala Best comment I've ever read.
No I was serious ur blog RUclips page thing is epic. I learnt so much more about ff7 . I tried the glitch but I ended up giving up lol 4-8Productions
luis ayala I was serious too. I'm just glad I could make your workplace poop a better experience.
I love the way you explain the math behind this regarding 32bit integers. If you see this comment, please consider making Final Fantasy VIII vids or let us know what you need for it!
The only time I can say that ff7 has made my head hurt was from this video.
hey my major is basically codeing binary for netoworks, plus my final game gotta subscribe. Also very entertaining an info
Do a tutorial of source farming using the W item glitch! Lots of people have trouble with that one
4-8 Productions is awesome!
O man I used to give limit break to all character and the ultimate weapons from start of the game and it was fun.
Farming power sources? Been there, done that! :3
your the best
love you bro !
Just a quick question, could you get the overflow glitch to work with chocobuckle if you ran away from enough battles?
I know its a bit old but I VERY MUCH would like you to do a video on source farming. and a few others since ff7 just hit xbox one and switch
I have one already! See all my tutorials here: ruclips.net/p/PLyotyCGt7oYDRkWxqjZgBQZ4H74M29Bjc
What if you could like junction 3 materia together, and do like- Steal-Quadra-Magic-Steal-As-Well so you would like- steal 5 times. That would be so cool.
Freaking amazing
Elements The Game footage, good old times :)
I found a few days ago that you could perform something that's maybe a bit similar/related to this regarding HP and materia effects. If you load a large amount of materia with HP -10% effect, the character will drop right down to a max HP of 10. Then when you equip another materia, the game shoots your HP back upto 9999 rather than giving it a negative value. I wonder if this is the same quirk of FFVII coding in action?
Fun Fact:
the cap in Warframe is 2,147,483,635 or so, just shy of the top
you can test this with a rubico (get a combo w/ a crit chance and crit damage riven (ms is nice too), with banshee's sonar (get the augment so all the sonars will ping on ONE target in the simulacrum), a button to spam energy and your sonar ability, and a lot of luck.
Also you can do it solo, and it's very easy once you know how to do it and have done it before.
Am i the only one who comes back and re-watches these every once in a while? Lol
Why do you come back to thi video? His explanation is horrible.
@@yebari9861 cuz it's funey
Yeah I do too
This is great, thanks for going in-depth.
Have you seen GarlandTheGreat ? He's real crazy and likes to make FF7 cry for mercy.
Why is this on Final Fantasy Wikia so difficultly explained? Kudos to you.
I want a STAT code detail video ! Do a video for coders about all the things nobody in their right mind would ask about
Wtf?! Did u master all knights materia by yourself?? Thats crazy!!
Holy shit, what a find, never knew about this AT ALL!!
Wondering if it might work on PS4 version of the PC Ported FF7?!
Oh yeah, GREAT vid!!!!
+WoobieZarz Yes it does work. Best works on Vincent
That's pretty cool.
thanks
Saw this video years ago, wonder if you ever used the underwater materia for this
I have a w item source farming method if your unaware, Max a stat on people out in 2 fights
I am very interested in the source farming. I assume you have already made a video on this though
Just google something like "FF7 source farming." IIRC, it's a pretty simple method.
Awesome Tutorials! I am loving it. :)
And you funny as fuc*!
id love to see a video about a save editor ussage
i just mimed Clouds Omnishlash paired with counter
definately make a source farming video please :)
I watch this for the music
And the narrative headache