A disassembler is a computer program which translates machine language into assembly language, performing the inverse operation to that of an Assembler. A dissasembler differs from a Decompiler, which targets a high level language rather than assembly language. Disassembly, the output of a disassembler, is often formatted for human-readability rather than suitability for input to an assembler, making it principly a reverse engineering tool.

Assembly language source code generally permits the use of Variable#Constants and programmer Comments. These are usually removed from the final machine code by the assembler. If so, a disassembler operating on the machine code would produce disassembly lacking these constants and comments; the dissassembled output becomes more difficult for a human to interpret than the original annotated source code. Some disassemblers can infer useful names and comments; however, interactive disassemblers are able to successfully disassemble more programs than fully-automated disassemblers because human insight applied to the disassembly process parallels human creativity in the code writing process.

There can never be a completely automated disassembly tool which always outputs correct source code because the disassembly process Reduction (complexity) to the impossible-to-solve halting problem.

=Disassemblers=

=References=

=External links=