Enable Super Game Boy use in VBA-M Module

[Zombie-Ryushu]

RetroArch should not rely on bsnes-mercury for Super Game Boy Support. It should use the Super Game Boy support incuded in VBA-M. RetroArch is not practical for Super Game Boy Support currently. SDL Mode builds of RetroArch do support Super Game Boy.

[GPDP2]

The thing about VBA-M's Super Game Boy support is that it doesn't extend beyond borders and colors on SGB-capable games. It lacks various other features, such as extra sound effects (Donkey Kong '94 has some of these) and SGB-exclusive content (playing Space Invaders on SGB unlocks a built-in SNES version), not to mention you don't get the SGB menu with which you can play around with the palettes and various borders for non-SGB games.

All in all, it is not a proper replacement for the SGB support provided by bsnes.

[Zombie-Ryushu]

Yes but right now its not possible to use SGB at all under RetroArch. This is a decent Inter rim solution.

[Zombie-Ryushu]

I still request to be given the option.

[sergiobenrocha2]

This is a messy feature also: https://sourceforge.net/p/vbam/bugs/150/

[Zombie-Ryushu]

This is still an issue as BSNES Super Game Boy Support is Windows Only.

[milesrotaru]

Hack for borders and colors is better than nothing, especially on Android and other platforms where the bsnes method for SGB emulation is not an option.

[nikkoman]

I would suggest a separate core built exclusively for SGB (border & colour) emulation, as there is no other option for low-powered devices.

External borders are not real emulation and SGB colours for games such as Mighty Morphin' Power Rangers make them have a reason to exist.

[ghost]

sgb should now be possible in latest commit. just dont expect it to have snes sounds though as that requires separate emulation for the snes apu. 2/4 player mode and borders should work (not sure what else can sgb do atm)

[hizzlekizzle]

Closing this issue, since the task is complete. Feel free to reopen if necessary.

[Zombie-Ryushu]

Confirmed to be working.