LibBF backend

[mekhontsev]

It would be nice to have LibBF (MIT license) backend: https://bellard.org/libbf/

[ram-nad]

Sir, I think I could work on this issue. Could you please help me in getting started?

[ckormanyos]

It would be nice to have LibBF (MIT license) backend

I think I could work on this issue. Could you please help me in getting started?

Please observe possible maturity of potential GSoC 2020 projects.

I have extended the second project to also include a potential focus on the libbf backend mentioned here.

(Although I also mention that I observe potential opportunities to modify the backend mentioned here such that it avoids direct use of GCC specifics such as built-in bitfield manipulations like clz-whatever. This backend actually seems relatively so close to actually being portable, a little effort could make it be so.)

[jzmaddock]

In the mean time, I'm working on a "skeleton" backend that can be converted into a "real" backend with a bit of search and replace plus some fill-in-the-blanks kind of thing. Should make life a bit easier/quicker for writing new backends, though as ever it's the testing that takes the time.

BTW it would be nice to add libdecnumber support too:
#74
#73

[ckormanyos]

In the mean time, I'm working on a "skeleton" backend that can be converted into a "real" backend

Many thanks, John. That is a great idea.

BTW it would be nice to add libdecnumber support too:

I will mention these to in the project proposal.

[jzmaddock]

The "skeleton" backend, plus some instructions on writing new backends is in this commit: 6f73233.