Unsupported mapper: 65, 68, 228

[woe-uwu]

Unsupported Mapper: 228

Neon64 2.0-WIP

SUMS $91060045 $72977734

[woe-uwu]

Unsupported mapper: 68
Neon64 2.0-WIP SUMS
$91060045 $72977734

Unsupported mapper: 65
Neon64 2.0-WIP SUMS
$91060045 $72977734

[hcs64]

I suggest opening a different issue for each mapper (unless they're closely related like all the VRC2/4 ones), maybe mention a few significant games using each.

I took a quick look and it seems like most of these have only a very few games associated with them, so they're pretty far down on my list. I welcome patches if someone else wants to try, and I'm happy to help debug if you get stuck.

• 68 (Sunsoft-4, Afterburner) is likely the simplest
• 228 (Action 52, Cheetahmen II) shouldn't be too bad (though the odd PRG ROM size might take some special handling)
• 65 (Irem H3001) needs a CPU cycle counting IRQ timer, probably can use the same basics as mapper 19 or 69, but exactly how these trigger and latch can be tricky