About Disassemble x86
Disassembly is the process of translating machine language into assembly language. This operation supports 64-bit, 32-bit and 16-bit code written for Intel or AMD x86 processors. It is particularly useful for reverse engineering shellcode. Input should be in hexadecimal.
Input: text. Output: text.
Format reference: Disassemble x86 background and specification
Example
Use “Try example” to load this public sample and its settings, then run it.
Settings used in this example
| Parameter | Example value | Input and choices |
|---|---|---|
| Bit mode | 64 | 64, 32, 16 |
| Compatibility | Full x86 architecture | Full x86 architecture, Knights Corner, Larrabee, Cyrix, Geode, Centaur, X86/486 |
| Code Segment (CS) | 16 | Number |
| Offset (IP) | 0 | Number |
| Show instruction hex | true | On or off |
| Show instruction position | true | On or off |
Input
90c3
Result
The example demonstrates the configured operation. Generated values, timestamps or formatting may vary between runs.
Parameters
| Parameter | Default value | Input and choices |
|---|---|---|
| Bit mode | 64 | 64, 32, 16 |
| Compatibility | Full x86 architecture | Full x86 architecture, Knights Corner, Larrabee, Cyrix, Geode, Centaur, X86/486 |
| Code Segment (CS) | 16 | Number |
| Offset (IP) | 0 | Number |
| Show instruction hex | true | On or off |
| Show instruction position | true | On or off |
Before interpreting the result
These tools have specialized conventions. Read the operation description and parameter choices before interpreting the result.
How to use this page
- Paste your input or open a local file.
- Adjust tool options if needed, then choose Run tool.
- Copy the result or download the original output bytes.
Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.