RISC CPU Lives in Excel
Last time we checked in on [Inkbox], he had made a 16-bit CPU in Excel. Impressive, but not really practical. Presumably, his latest project isn’t any more practical, but we …read more Continue reading RISC CPU Lives in Excel
Category Archives: CPU
What’s next for hardware-level security features?
Seems like there’s been a lot of hardware-enabled security features released for x64 in the last few years. MPX (albeit that’s since been deprecated), MBEC, CET with indirect branch control and shadow stacks, VT-rp, SMEP/SMAP, Intel TDT to… Continue reading What’s next for hardware-level security features?
Tridora: A Full-Custom CPU Designed For Pascal
[Sebastian Lederer] has created Tridora: an unusual stack-based CPU core intended for FPGA deployment, co-developed with its own Pascal compiler. The 32-bit word machine is unusual in that it has …read more Continue reading Tridora: A Full-Custom CPU Designed For Pascal
Does this vulnerability related to general purpose registers exist?
Does anyone know any type of vulnerability that affects CPU registers that allows an attacker overwrite registers with specific values that remain fixed for example for a few instructions and only change when for example a mov instruction … Continue reading Does this vulnerability related to general purpose registers exist?
Does this vulnerability related to general purpose registers exist?
Does anyone know any type of vulnerability that affects CPU registers that allows an attacker overwrite registers with specific values that remain fixed for example for a few instructions and only change when for example a mov instruction … Continue reading Does this vulnerability related to general purpose registers exist?
A Robust Guide To The Xbox 360 Glitch Hack
The Xbox 360 was a difficult console to jailbreak. Microsoft didn’t want anyone running unsigned code, and darn if they didn’t make it difficult to do so. However, some nifty …read more Continue reading A Robust Guide To The Xbox 360 Glitch Hack
BBC Micro: A Retro Revamp with the 68008 Upgrade
The BBC Microcomputer, launched in the early 1980s, holds a special place in computing history. Designed for educational purposes, it introduced a generation to programming and technology. With its robust …read more Continue reading BBC Micro: A Retro Revamp with the 68008 Upgrade
CPU Stuck at low clock speed in Windows 11/10 [Fix]
CPU clock speed, or the speed of processing instructions for a system, may be based on the hardware specifications. Lower speed can impact system performance, so the steps below can be applied to resolve the problem. Fix CPU Stuck at low clock speed i… Continue reading CPU Stuck at low clock speed in Windows 11/10 [Fix]
Why are some Cloudflare challenges CPU intensive?
I notice in Chrome’s Task Manager that some Cloudflare challenges are CPU intensive. Why?
E.g., in the following screenshot, Cloudflare challenges took over 1 hour of CPU (representing ~25% of the browser’s CPU time):
Task
Memory footp… Continue reading Why are some Cloudflare challenges CPU intensive?
Mainframe Chip has 360MB of on-Chip Cache
It is hard to imagine what a mainframe or supercomputer can do when we all have what amounts to supercomputers on our desks. But if you look at something like …read more Continue reading Mainframe Chip has 360MB of on-Chip Cache