Continuing his reverse-engineering of the Intel 8087, [Ken Shirriff] covers the conditional tests that are implemented in the microcode of this floating point processing unit (FPU). This microcode ...

Bottom line: Chipmakers typically use microcode updates to fix bugs and improve CPU reliability. However, this low-level layer between hardware and machine code can also serve as a stealthy attack ...

Intel has announced another microcode update for its Core i-13000 and i-14000 series processors, aimed at resolving persistent stability issues related to excessive CPU core voltages. This update ...

You are on your own. That is essentially the lesson many US allies have taken from the events of the last few weeks, after President Donald Trump and his administration expressed unwillingness to ...

What just happened? A significant vulnerability, known as EntrySign, has been uncovered by Google security researchers, affecting all AMD Zen processors from Zen 1 to Zen 4. This flaw allows attackers ...

The Secure Encrypted Virtualization (SEV) function of AMD server processors is less secure than the name suggests: Google researchers found that Epyc processors are sloppy when it comes to signature ...

Google researchers recently published proof-of-concept code demonstrating the ability to create malicious microcode patches on AMD processors from Zen 1 through Zen 4. This vulnerability would allow ...

Since its release in October, the Intel Core Ultra 200S, also known as Arrow Lake-S during testing, has received two microcode updates—transitioning from version 110 to 112, and then to 113—without ...

Intel’s much-anticipated 0x114 microcode patch has started rolling out to Z890 motherboards despite not being released officially, and the ASRock Z890 Taichi OCF is one of the first boards to see the ...

Abstract: Microcode update mechanism have been widely used in modern processors. Due to the implementation details are not public, researchers are prevented from gaining any sort of further ...

Intel has recently released a new fix for the CPU voltage issues that have been plaguing some of its processors. This update aims to address concerns related to voltage regulation and stability, which ...

Abstract: Heterogeneous computing systems that integrate general-purpose processors with various types of application-specific accelerators are becoming mainstream. However, designing an efficient and ...