ZydisInfo(1)

ZydisInfo1

Detailed instruction information

Usage

ZydisInfo machine_mode [stack_width] hexbytes

Overview

ZydisInfo allows you to decode X86 & X86-64 assembly displaying lots of information about it.

Options

ZydisInfo supports four different machine modes

-real

real machine mode

-16

16 bits machine mode

-32

32 bits machine mode

-64

64 bits machine mode

You can also specify the stack width one of the following options

-16

16 bits

-32

32 bits

-64

64 bits

Examples

$ ZydisInfo -64 66 3E 65 2E F0 F2 F3 48 01 A4 98 2C 01 00 00
== [    BASIC ] ==================================================
   MNEMONIC: add [ENC: DEFAULT, MAP: DEFAULT, OPC: 0x01]
     LENGTH: 15
        SSZ: 64
       EOSZ: 64
       EASZ: 64
   CATEGORY: BINARY
    ISA-SET: I86
    ISA-EXT: BASE
 EXCEPTIONS: NONE
 ATTRIBUTES: HAS_MODRM HAS_SIB HAS_REX CPUFLAG_ACCESS ACCEPTS_LOCK
[...more info...]

Releases

3 releases since Debian 12 (Bookworm); the text changed 2 times.

  1. 12
  2. 13
  3. Arch

From zydis 4.1.1-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.