Debugging ARM code shows instructions incorrectly

[sherrellbc]

Describe the bug I was just giving it a shot on ARM (remote debugging) and noticed a few things. The height of the rows for in the register view make it so that you can only see about 15 registers at once. Could that be scaled back/down? Also, the instructions shown in the debug window are a bit munged together.

The first instruction shown in the screenshot is msr x0, ttbr0_el3. But what is shown in the gdbgui window is mrstx0, ttbr0_el3. It's thrown together the mrs and the x0 while also putting a random t in the mix.

To Reproduce Debug baremetal/kernel ARM code. The instruction display issue might be present on any ARM code, but certainly the use of MSRs (as shown) is not.

Screenshots https://imgur.com/a/wU9I4PZ

Please complete the following information:

• OS: OSX
• gdbgui version (gdbgui -v): 0.13.1.1
• gdb version (gdb -v): 8.2.1
• browser [e.g. chrome, safari]: Chrome
• python packages (pip freeze):

[Swiftloke]

I'd like to draw a little more attention to this, as I'm running into it as well. When debugging some code on the Nintendo 3DS (using a patched arm-none-eabi-gdb provided by devkitARM, version 8.0) the code that appears in the browser window looks a little something like this: https://imgur.com/TD9Jhjz Could this perhaps have something to do with a failure to properly interpret \t? If pointed in the right direction, I might be able to poke around for the bug a bit. Also note that this issue occurs on 32-bit ARM as well (OP is debugging Aarch64).

[listentodella]

I also can reproduce this issue on version 0.15.1.0 for ARM AArch64 I think this caused by the failure to parsing \t.

[CTXz]

Looks like this bug has been fixed in a more recent commit/release. If I run gdbgui using the latest pip release, the formatting error appears to still be present. Serving gdbgui from source via master appears to fix this issue however.