reverse-engineering
9 articles tagged with "reverse-engineering"
Tech Feeds
It’s 1979 – What Exactly Did That ∫ Key Do?
[Michel Jean] asked a question few others might: what exactly is going on under the hood of a classic HP scientific calculator when one presses the ∫ key? A numerical …read more
SNES Controllers are (Almost) SPI-Compatible
Considering that the Serial Peripheral Interface bus semi-standard has been around since the early 1980s, it’s perhaps not that shocking that the controllers of the Super Nintendo Entertainment System...
X-Ray a PCB Virtually
If you want to reverse engineer a PC board, you could do worse than X-ray it. But thanks to [Philip Giacalone], you could just take a photo, load it into …read more
How the Intel 8087 FPU Knows Which Instructions to Execute
An interesting detail about the Intel 8087 floating point processor (FPU) is that it’s a co-processor that shares a bus with the 8086 or 8088 CPU and system memory, which …read more
Poking at the ESP32-P4 and -C6 Dies in an ESP32-P4-M3 Module
With the ESP32-P4 not having any wireless functionality and instead focusing on being a small SoC, it makes sense to combine it with a second chip that handles features like …read more
Reverse Engineering a Dash Robot with Ghidra
One of the joys of browsing secondhand shops is the possibility of finding old, perhaps restorable or hackable, electronics at low prices. Admittedly, they usually seem to be old flat-screen …read mor...
Inside Raiders of the Lost Ark (Atari Style)
It’s a bit ironic that an Atari 2600 game based on Raiders of the Lost Ark — a movie about archaeology — is now the subject of its own archaeological …read more
The Inner Workings of the Intel 8086’s Arithmetic Logic Unit
In the 1970s CPUs still had wildly different approaches to basic features, with the Intel 8086 being one of them. Whereas the 6502 used separate circuits for operations, and the …read more
Converting a Nebra Cryptocurrency Miner To a Meshcore Repeater
After the swivel by Helium Inc. towards simply running distributed WiFi hotspots after for years pushing LoRaWAN nodes, much of the associated hardware became effectively obsolete. This led to quite …...