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Index > DOS > How to disassemble to a Flat Assembler source?

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axlucas



Joined: 02 May 2014
Posts: 70
Location: Argentina
axlucas 12 Dec 2023, 13:32
Well, basically, it's that. I have a DOS EXE file and I would like to disassemble it to Flat Assembler format source code. If I can do it directly in one go, that's great. If I need to first disassemble it to, say, TASM, and then convert that to Flat Assembler, as long as it works, it's OK too. But I would like the process to not require Windows, since I'm a Linux user. If no other choice, I'll have to install Wine to do it once and then I have my source and won't need it again, but it'd be great to not need to do that.

What do you guys recommend for the disassembly?
Thanks
Post 12 Dec 2023, 13:32
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Furs



Joined: 04 Mar 2016
Posts: 2425
Furs 12 Dec 2023, 14:39
objdump -d -M intel file.exe
Post 12 Dec 2023, 14:39
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20070
Location: In your JS exploiting you and your system
revolution 12 Dec 2023, 14:45
The closest output format from some of the most popular disassemblers, is probably NASM.

Then with a bit of scripting magic you could do post-processing of the NASM source.
Post 12 Dec 2023, 14:45
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DOS386



Joined: 08 Dec 2006
Posts: 1900
DOS386 03 Jan 2024, 17:43
https://github.com/gdabah/distorm/releases DISTORM (NASM syntax)
https://nasm.us/ NDISASM (NASM syntax)
https://agner.org/optimize OBJCONV (can also brew NASN syntax)

FAQ
Post 03 Jan 2024, 17:43
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