Ben Eater and others use an instruction processing sub-cycle where a given op code is executed as a sequence of microcode instructions. My thoughts (Aug 2019) on microcoded instructions such as those ...

Infosec boffins have released a tool to decrypt and unpack the microcode for a class of low-power Intel CPUs, opening up a way to look at how the chipmaker has implemented various security fixes and ...

Video gamers know about cheat codes, but assembly language programmers are often in search of undocumented instructions. One way to find them is to map out all of a CPU’s opcodes and where there are ...

In the ever-evolving landscape of technology, hardware stability is paramount for ensuring optimal performance in computing systems. Recently, Intel, one of the world’s leading semiconductor ...

This repository contains the formal verification framework from here, which is used to verify the microcode of the Goldcrest-VP. The Goldcrest-VP is a RISC-V RV32I Virtual Prototype (VP) which uses a ...

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 ...

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 ...

Abstract: Microcode is a technique that is used to implement internal state machine sequencing in different type of controllers addressing a large range of different applications. It can be used to ...