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 ...

The CPU is a simple stack virtual machine with a specialized reduced instruction set. Execution algorithm: The VM fetches an opcode from system memory pointed by CS:IP. There is a table of instruction ...

CPU manufacturers must address issues that arise with processors already on the market, especially the errors that are discovered over time. To handle this, Intel has released a new version of ...

Intel has released another round of firmware and driver updates, this time accompanied by 30 new security advisories. The microcode update, labeled version 20251111, covers nearly all recent Intel ...

From a technical standpoint, everything a computer does involves reading, manipulating, and storing information through microcode instructions that move around 0’s and 1’s. Each operation performed by ...

Intel has confirmed that it's about to issue another microcode update for its 13th-gen and 14th-gen Raptor Lake CPUs, meaning you'll need to update your motherboard BIOS again. As with the raft of ...

When AMD finally issued patches for its critical microcode security hole on Monday, it said that the glitch 'could lead to the loss of Secure Encrypted Virtualization protection.' AMD on Monday issued ...

What just happened? AMD has confirmed a security vulnerability in some of its processors, which was inadvertently revealed through a beta BIOS update from Asus. The flaw, described as a "microcode ...

AMD has confirmed an unpatched “processor vulnerability” that may require CISOs to isolate their systems or even air gap them until there’s a fix. AMD has had to confirm the existence of a major ...