Reverse-Engineering the Intel 8087 Stack Circuitry
<img width="800" height="336" src="![image](https://hackaday.com/wp-content/uploads/2025/12/8087_ken_shirriff_stack-schematic.jpg?w=800")
alt=""/>Although something that’s taken for granted these days, the ability to perform floating-point operations in hardware was, for the longest time, something reserved for people with big wallets. This began 
alt=""/>Although something that’s taken for granted these days, the ability to perform floating-point operations in hardware was, for the longest time, something reserved for people with big wallets. This began Hackaday
Reverse-Engineering The Intel 8087 Stack Circuitry
Although something that’s taken for granted these days, the ability to perform floating-point operations in hardware was, for the longest tim...
Hackaday
Reverse-Engineering The Intel 8087 Stack Circuitry
Although something that’s taken for granted these days, the ability to perform floating-point operations in hardware was, for the longest tim...
![image](https://hackaday.com/wp-content/uploads/2025/12/cloud-chamber-featured.jpg?w=800")
alt=""/>Want to visualize radioactive particles? You don’t need a boatload of lab equipment. Just a cloud chamber. And [Curious Scientist] is showing off an improved miniature cloud chamber that is easy 
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alt="off grid weather station"/>There are a lot of options for local weather stations; most of them, however, are sensors tied to a base station, often requiring an internet connection to access all features. 
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alt=""/>3D printers are built for additive manufacturing. However, at heart, they are really just simple CNC motion platforms, and can be readily repurposed to other tasks. As [Arseniy] demonstrates, it’s 
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alt="Using GIMP for visual analysis"/>In a recent video, [Andrew Zonenberg] takes us through the process of decapsulating a PIC12F683 to take a peak at its CMOS implementation. This is a multipart series with five 
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alt=""/>This week’s Hackaday Podcast sees Elliot Williams joined by Jenny List for an all-European take on the week, and have we got some hacks for you! In the news this 
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alt=""/>The Kodak Charmera is a tiny keychain camera produced by licencing out the name of the famous film manufacturer, and it’s the current must-have cool trinket among photo nerds. Inside 
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alt=""/>There’s something immensely satisfying about taking a series of low impact CVEs, and stringing them together into a full exploit. That’s the story we have from [Mehmet Ince] of Prodraft, 
![image](https://hackaday.com/wp-content/uploads/2025/12/abb_arm_printer_feat.png?w=800")
alt="ABB arm printing a vase"/>As the saying goes — when life gives you lemons, you make lemonade. When life gives you a two-ton surplus industrial robot arm, if you’re [Brian Brocken], you apparently make 
![image](https://hackaday.com/wp-content/uploads/2025/12/Satisfying-Make-Your-Own-WINDMILL-Desk-Lamp-0-0-screenshot.png?w=800")
alt=""/>Typically, lamps provide a stationary source of light to illuminate a given area and help us see what we’re doing. However, they can also be a little more artistic and 
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alt=""/>We’ve often said that some technological advancements seemed like alien technology for their time. Sometimes we look back and think something would be easy until we realize they didn’t have 
![image](https://hackaday.com/wp-content/uploads/2024/02/Windows_11_logo.jpg?w=800"){kind=logo}
alt=""/>It seems like a fair assessment to state that the many ‘AI’ features that Microsoft added to Windows 11 are at least somewhat controversial. Unsurprisingly, this has led many to 
![image](https://hackaday.com/wp-content/uploads/2025/12/hydropower_generator_farmcraft101_youtube.jpg?w=800")
alt=""/>The theory behind hydropower is very simple: water obeys gravity and imparts the gained kinetic energy onto a turbine, which subsequently drives a generator. The devil here is, of course, 
![image](https://hackaday.com/wp-content/uploads/2025/12/maxresdefault-1.jpg?w=800")
alt=""/>These days, you get a fantastic camera with the purchase of just about any modern smartphone. [Abe] missed some of the charm of earlier, lower-quality digital cameras, though, and wanted 
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alt=""/>The Amiga 600 was in its day the machine nobody really wanted — a final attempt to flog the almost original spec 68000 platform from 1985, in 1992. Sure it 
![image](https://hackaday.com/wp-content/uploads/2020/10/stm32_ic_logo.jpg?w=587"){kind=logo}
alt=""/>When you start an STM32 MCU with its default configuration, its CPU will tick along at a leisurely number of cycles on the order of 8 to 16 MHz, using 
![image](https://hackaday.com/wp-content/uploads/2025/12/FC1ICVMMIRS9W3O-e1765248552777.jpg?w=800")
alt=""/>Hopscotch is a game usually played with painted lines or with the aid of a bit of chalk. However, if you desire fancier equipment, you might like the interactive hopscotch 
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alt=""/>Cartridge-based consoles have often been celebrated for their robust and reliable media. You put a simple ROM chip in a tough plastic housing, make sure the contacts are fit for 
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alt=""/>Once upon a time, transmutation of the elements was a really big deal. Alchemists drove their patrons near to bankruptcy chasing the philosopher’s stone to no avail, but at least 
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alt=""/>Modern hospitals use a lot of computers. Architecturally speaking, they’re pretty typical machines—running the same CPUs and operating systems as any other PCs out there. However, they do tend to 