BSNES SGB subsystem

Hi there. I just compiled a new version of Retroarch, and ran into a small problem. I’d been running SGB compatible Gameboy games through the BSNES-balanced core previously, and I found that the --gameboy flag had been removed, and so my script to run SGB games no longer worked. I did some investigating, and it seems like this functionality has been subsumed into the --subsystem flag. However, I can’t get this to work. I’ve tried everything I can think of, but the best I can get is a blank screen by invoking --subsystem “path_to_gb_rom” - it doesn’t seem to want to run the SGB ROM like it used to. It appears the functionality is present in the source, but I can’t find a way to get it to work.

Is there some other way to run a GB ROM through SGB via the BSNES core, or is it not implemented yet?

alcaro is working on something that should make SGB loading much easier by combining bsnes and gambatte (the way bsnes used to do it before byuu wrote his own gbc core). In the meantime, I’d stick with your older build if it was working as you like it.