Zentool – AMD Zen Microcode Manipulation Utility

Zentool -- AMD Zen Microcode Manipulation Utility This package provides a suite of tools for analyzing, manipulating and generating microcode patches for AMD Zen processors. The command zentool is a frontend to various utilities. There is also a mcas , a simple assembler and mcop a simple disassembler. Note: We also have an introduction to microcoding, and a programming reference. Usage The general format of a command is: $ zentool [GLOBALOPTIONS] CMD [COMANDOPTIONS] [FILE...] Type zentool help to see a list of available commands. Examples You can examine the header of a microcode update file using the print command: $ zentool print data/cpu00860F01_ver0860010F_2024-11-18_785D74AB.bin Date: 11182024 (Mon Nov 18 2024) Revision: 0860010f Format: 8004 Patchlen: 00 Init: 00 Checksum: 00000000 NorthBridge: 0000:0000 SouthBridge: 0000:0000 Cpuid: 00008601 AMD Ryzen (Grey Hawk, Renoir) Stepping 1 Model: 0 Extmodel: 6 Extfam: 8 BiosRev: 00 Flags: 00 Reserved: 0000 Signature: 9c... (u ... Read full article.