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Which compiler are you using? I was just wanting to test this application so downloaded

x86_64-w64-mingw32-gcc-4.9.2.exe

I use an assembly compiler for all tasks I'm doing in MCode.
Its not quite comfortable but useable.

nnnik wrote: ↑

30 Sep 2013, 12:00

3. an MCode Function:
I use this one:

Code: Select all

MCode(mcode)
{
  static e := {1:4, 2:1}, c := (A_PtrSize=8) ? "x64" : "x86"
  if (!regexmatch(mcode, "^([0-9]+),(" c ":|.*?," c ":)([^,]+)", m))
    return
  if (!DllCall("crypt32\CryptStringToBinary", "str", m3, "uint", 0, "uint", e[m1], "ptr", 0, "uint*", s, "ptr", 0, "ptr", 0))
    return
  p := DllCall("GlobalAlloc", "uint", 0, "ptr", s, "ptr")
  if (c="x64")
    DllCall("VirtualProtect", "ptr", p, "ptr", s, "uint", 0x40, "uint*", op)
  if (DllCall("crypt32\CryptStringToBinary", "str", m3, "uint", 0, "uint", e[m1], "ptr", p, "uint*", s, "ptr", 0, "ptr", 0))
    return p
  DllCall("GlobalFree", "ptr", p)
}

are you sure VirtualProtect is only needed on AHKx64?

Hi all,

I am a bit new to MCODE, but I have managed to install compiler TDM-GCC-64\bin\gcc.exe and was able to generate MCODE. However, I have been searching for at least couple hours but can't find a way to set compiler to generate MCODE encoding in hexadecimal vs base64(the default). The function is writeen in C.
Any help is appreciated, thank you.

Someone helped me.. thank you..
You have to change it under "Settings" here :
"Laszlo Style" for Hex
"Bentschi Style" for Base64

Which compiler did you use? Also why do you want to use Hex instead of base64?

What does 1 or 2 stand for before x64/x86? I've seen machine codes using these. For example, in this one : " 2,x86:aipYww==,x64:uCoAAADD ".

Thank you.

its stupid way of passing CRYPT_STRING_HEX(1) / CRYPT_STRING_BASE64(2) to CryptStringToBinary(), depending on whose mcode functions ure using

Thank you.... So, if it's bentschi mode /edition , it's in base 64, right ?

i dont know what betchis looks like
in the one 3 posts above me, yes.

Yes, base64.

Sorry to bump this code after so long but I see a lot of examples showing code like this that contain x86 and x64 code:
But when I compile code it always shows only the x64 version of it, is there any settings that I should set?

If you mean MCode4GCC, I havent updated in a while so not sure if everything's working fully... but for GCC can specify 32bit or 64bit with the -m32 and -m64 flags

joedf wrote: ↑

22 Jul 2023, 12:36

If you mean MCode4GCC, I havent updated in a while so not sure if everything's working fully... but for GCC can specify 32bit or 64bit with the -m32 and -m64 flags

I thought about the flags but where can I put them in MCode4GCC? after the path to the compiler I would assume right?

Yes, that should work. At least, that's what I did in the past. You could also maybe make a small modification in the script for this. I'm thinking about it, but might not get it to it for a while...

@joedf

In what world would Mcodeforgcc produce outputs ending like this:
I tried to truncate the code up to c3, and the code still crashes.

It's absolutely bizarre, and I can't figure out why. I asked the AI, as well as looked around at stack overflow.

Specs:
* gcc 13.20 downloaded from https://winlibs.com/ winlibs personal build version gcc-13.2.0-mingw-w64ucrt-11.0.1-r2
* Running 32-bit compiler

The same exact code works fine when I compile using 64-bit.
https://godbolt.org/z/x1sMP8cGW

Of course, now that I made a post about it, it suddenly works. Looks like trimming the excess bytes is the solution.

@iseahound Wow ahah, I'm glad it worked out.
I am not entirely sure why, but it seems we can get some junk towards the end. There's a attempt to truncate some of that, but obviously not all is caught/removed...