[Capstone-users] Adding disassembler for SuperH

[Dhruv M. <dhr...@gm...>]

Hi,

I am one of the contributors of Rizin (https://github.com/rizinorg/rizin).
I have been working on lifting the SuperH ISA (
https://github.com/rizinorg/rizin/pull/2518) to the Rizin intermediate
language (RzIL). Till now, we used to use GNU's code for disassembling
SuperH opcodes (which was licensed under GPL-3). Since I was anyways
migrating the ops to RzIL, and wanted to rewrite the GPL-3 code, I rewrote
the disassembler (which is now licensed under LGPL-3). It is missing FPU
instructions, but that is mainly because we don't have IL support for them
yet, so it's not a priority.

We use Capstone for the disassembly wherever it is feasible. But Capstone
does not support SuperH. It would be nice to have SuperH disassembly
support within Capstone itself, since it would lead to a more uniform
integration between Capstone and Rizin. It'll also help anyone else looking
for a SuperH disassembler (since there really aren't many of them).

I can help by writing the SuperH disassembler for Capstone. I am fairly
familiar with the ISA and I have already partially implemented the
disassembler. I have also had a look at Capstone's API (for implementing
x86 RzIL in Rizin). I can implement a complete disassembler with all the
instructions. I would like to hear from the maintainers and the users
whether I should go ahead with it (hence this mail thread).

Regards,
Dhruv Maroo