This is a tool for all of us that like attacking EXE files and other such files with hex editors. It's a small assembler - you type your asm into the edit box and it gives you out the opcodes required for that instruction. It can handle patches upto 4095 bytes in length, which is enough for most people

After you have finished your patch, you can either copy the hex codes or asm into your clipboard, or save the hex/asm/binary to a disk file.

Instruction-wise, it supports all standard 80x86 commands, including the FPU & MMX. SSE is however not supported.

Screenshot & Download: hxxp://www.ibiblio.org/paulc/rta/

Nice job. I know someone who's getting into polymorphic code and this just might be handy for generating those small snippets of code that accomplish the same thing

I'm sure you know your app just begs to be reversed too

Cheers,
Kayaker

EDIT - Thought I'd "sticky" these two 'New Tool' threads for a few days to give people a chance to check them out. Maybe encourage others to post their owns apps..?

Nice work!

Instead of reversing my app, why not look at the assembler engine in source code form ? After all, I only wrote the GUI

h**p://home.t-online.de/home/Ollydbg/

is where I grabbed the source code for the assembler. Save's writing it myself :-)

Course, if you prefer to reverse my app, then feel free. It's not protected in any form (not that it would stop you if it was

great tool! great work!

well,
the point of doing tools..is by doing them your self..
downloading a ready soruce code is not in that term :-)
code ur own assembler engine, you will learn much more from doing it your self...
ahh well, nice job on the interface

didn't have time to do my own assembler m8, otherwise I would have done. There was only a "limited instruction set only" assembler out there, so OllyDbg's source's seemed the ideal thing to use. Nice interface over it and bingo

I allready know how the intel cpu opcodes work as I've written a disassembler. Not a very good one mind, but it disassembles small files. I now just use IDA.