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[Tool] How do I disassemble a GB rom

Downloafy

    • 10
    Posts
    2
    Years
    • Seen Nov 25, 2022
    So I've been trying to find a program/exe/VSC and I'm having no luck on finding a program/exe/VSC that can disassemble a GB rom.
    So I scattered around the internet and found this site, so hopefully you all can help me!
    (NesDev was useless for me)
    If you have any program/exe/VSC that can disassemble a GB rom file please reply to this post and link it.
    Thank you!
     
    Downloafy said:
    So I've been trying to find a program/exe/VSC and I'm having no luck on finding a program/exe/VSC that can disassemble a GB rom.
    So I scattered around the internet and found this site, so hopefully you all can help me!
    (NesDev was useless for me)
    If you have any program/exe/VSC that can disassemble a GB rom file please reply to this post and link it.
    Thank you!
    Click to expand...
    I imagine you'll want to use a disassembler for a task like that such as IDA Pro, Ghidra or mgbdis.
     
    Lunos said:
    I imagine you'll want to use a disassembler for a task like that such as IDA Pro, Ghidra or mgbdis.
    Click to expand...

    I've been trying the mgbdis but it just wont work bc it keeps saying "/usr/bin/env: 'python3': no such file or directory" can you help me fix that?
     
    Downloafy said:
    I've been trying the mgbdis but it just wont work bc it keeps saying "/usr/bin/env: 'python3': no such file or directory" can you help me fix that?
    Click to expand...
    You need to set up the folder path to Python 3 on your Windows' PATH Environment Variable.
    I mean, it is a Python construction so that much should be obvious.

    Assuming that for whatever reason you didn't check the option to do it automatically in its installer or that you have a portable installation, you just gotta do Win Key + R -> sysdm.cpl -> Advanced -> Environment Variables -> System variables: PATH, and throw in the folder path to Python 3 there.
    [PokeCommunity.com] How do I disassemble a GB rom
     
    Downloafy said:
    Ye so now it kinda worked:
    -bash: ./mgbids.py: No such file or directory
    Click to expand...
    It seems you're trying to invoke mgbdis from somewhere outside of its directory, which is not how things work.
    You need to go to mgbdis' folder in your command prompt using the cd command and then running the Python script there as indicated in mgbdis' README.
     
    Lunos said:
    It seems you're trying to invoke mgbdis from somewhere outside of its directory, which is not how things work.
    You need to go to mgbdis' folder in your command prompt using the cd command and then running the Python script there as indicated in mgbdis' README.
    Click to expand...

    just did that but now it came back again
    /usr/bin/env: 'python3': No such file or directory
     
    Downloafy said:
    just did that but now it came back again
    /usr/bin/env: 'python3': No such file or directory
    Click to expand...
    Same deal, you just don't have the path to Python in your PATH Environment Variable.
    I just gave it a try myself, and mgbdis is working normally.
    Code: 
    C:\Users\lun0s\Desktop\mgbdis-master>python mgbdis.py pkmnred.gb
Loading "pkmnred.gb"...
ROM MD5 hash: 3d45c1ee9abd5738df46d2bdda8b57dc
Generating labels...
Generating disassembly.............................................................
    Spoiler:
     
    Lunos said:
    Same deal, you just don't have the path to Python in your PATH Environment Variable.
    I just gave it a try myself, and mgbdis is working normally.
    Code: 
    C:\Users\lun0s\Desktop\mgbdis-master>python mgbdis.py pkmnred.gb
Loading "pkmnred.gb"...
ROM MD5 hash: 3d45c1ee9abd5738df46d2bdda8b57dc
Generating labels...
Generating disassembly.............................................................
    Spoiler:
    Click to expand...

    then please send me the link to download the right python please
    ty!
     
    Downloafy said:
    ok so i finally disassembled it but it doesnt show the images :c
    Click to expand...
    Naturally. The only thing the disassembler retrieves is code.
    You'll need to dump the visual assets somehow else, set up a linker on your own, etc.

    This is by no means a thing you should be trying to do without extensive knowledge about the assembly language and reverse engineering.
     
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