MiSTer FPGA Forum

Is there a standard way the RBF files are structured? For example, is there something like a "header" that has the name of the core, how it relates to the folder structure, etc. that is uniform to cores, or does every developer do it their own way? If it is more or less standardized, is it possible to edit these values in some way (like in a hex editor)? Thanks!

The RBF is the compiled result from Quartus. Editing it in any way would be inadvisable. Changing the core name would require a recompile of the core.

What do you want to do exactly? You can use MGL files to customize a core name and change default values without recompiling.

For example you can have an "Amiga 500" and "Amiga 1200" MGL files, both uaing rhe same exact RBF for Minimig, but starting with differemt options, and saving settings separately.

https://mister-devel.github.io/MkDocs_M ... anced/mgl/

To add to the above reply, tchnically RBFs are an FPGA bit stream optimized by Quartus, so there isn't a user editable file structure in it. MGL were developed as a way to avpjd having to recompile for basic setting changes (name etc)

Newsdee wrote: ↑Wed Sep 20, 2023 8:32 pm

What do you want to do exactly? You can use MGL files to customize a core name and change default values without recompiling.

For example you can have an "Amiga 500" and "Amiga 1200" MGL files, both uaing rhe same exact RBF for Minimig, but starting with differemt options, and saving settings separately.

https://mister-devel.github.io/MkDocs_M ... anced/mgl/

To add to the above reply, tchnically RBFs are an FPGA bit stream optimized by Quartus, so there isn't a user editable file structure in it. MGL were developed as a way to avpjd having to recompile for basic setting changes (name etc)

I only discovered the MGL format yesterday (the first time I've wanted to separate Amiga 500/600/1200/Vision installs and it is awesome. I do wish I could hide the RBF now I have the MGLs named as I want them...

cursedverses wrote: ↑Thu Sep 21, 2023 3:11 pm

I do wish I could hide the RBF now I have the MGLs named as I want them...

I know it's off topic...but....
If you are talking about hiding the Minimig core itself, you can try using the names.txt file to hide it.
In the names.txt file, change or add the following line to "hide" the minimig (Amiga) core but leave your mgl's visibile:

Minimig: 

I haven't noticed any adverse side effects.

@Flandango Neat tip, thanks!