www.capstone-engine.org erroneously states VFPU is supported for architecture MIPS about capstone HOT 10 CLOSED

How can we provide those missing instructions? the only things I can see are auto-generated files.

from capstone.

you must start with LLVM: if you can add those missing VFPU instructions
into table-gen files (*.td), then we can generate the .inc files in
Capstone.

see http://llvm.org/docs/TableGen/index.html &
https://github.com/llvm-mirror/llvm/blob/master/lib/Target/Mips/Mips.td
(for Mips)

a question: regarding these VFPU instructions on Allegrex CPU, where to get
more information?

thanks.

from capstone.

Not sure I'm proficient enough with LLVM .td stuff. However I'll considerate how to provide you with the necessary information about them if you are still interested with. I was the one who added VFPU in JPCSP emulator.

from capstone.

Cool, then just give me the patched .TD file, I will do the rest to make
Capstone support these missing instructions.

Thanks

from capstone.

oh you mean to say "Not sure", but "Note sure". so yes, give me the information aboug VFPU and i will see how to support them in Mips engine.

thanks.

from capstone.

A lot of stuff I did in the past time are now gone :(. But to start with, I can give this link: http://lukasz.dk/mirror/forums.ps2dev.org/viewtopic3bd0.html?t=10471

I'll try to get more infos for missing descriptions on some vfpu instruction in this link (i'm coding a tool to auto-generate a similar description file for allegrex instructions from my .def file). I have a .def file I use for my PSP emulator for all instructions but you probably need more information than the ones inside this .def file. By the way where I could send thoses files to you?

Just realised I also made something at my old website : http://hlide.free.fr/

And you can also reach this address : http://hlide.free.fr/vCpuxDox/vcpuxdox.html for some explanation about VFPU registers but that stuff was never finished.

from capstone.

Please feel free to contact me via http://capstone-engine.org/contact.html

Thanks.

from capstone.

If you are still interesting, you could also read this patch to extract all you need for implementing Allegrex disassembly : https://github.com/pspdev/psptoolchain/blob/master/patches/binutils-2.22-PSP.patch.
There might be some errors but I can then read what you implement and correct it.

from capstone.

sure, i will look into that. but this will take some time, as there are other priorities now.

thanks.

from capstone.

Close this issue for now because of legacy, plz feel free to open a new issue if there is progress.
thx :)

from capstone.