CPU microcode represents low-level instructions essential for the proper CPU functioning, acting as a bridge between the CPU’s architecture and the electronic circuits that execute instructions.

Goldcrest is a microcoded RISC-V Virtual Prototype (VP) which implements the RV32I base instruction set on top of SUBLEQ microcode. There are two papers based on Goldcrest which you can find here and ...

My understanding was that a CPU microcode update is stored in non-volatile memory on the motherboard and is loaded by the BIOS or UEFI into volatile memory on the CPU during boot. And because the ...

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 ...

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 ...

Opinion All malicious attacks on digital systems have one common aim: taking control. Mostly, that means getting a CPU somewhere to turn traitor, running code that silently steals or scrambles your ...

Motherboard vendors have started to deploy BIOS updates based on the AGESA 1.2.0.3C firmware. The new BIOS addresses a critical security vulnerability in AMD's Zen 5 chips found last month. This ...