With the Sega CD you’d get more RAM and a second, faster 68k
As to the Sega CD; it'd probably be cool but this is already super-slow as it is (There's lots of bus contention already from 2 x SH2s and 1 x 68000) so yeah.
Maybe a cool project would be SMP for the 2 68000s (Sega CD + Genesis) but I'm not even sure if there's any form of SMP available for arch/m68k in Linux (If both 68000s are wired you could maybe get away-ish with some simple bringup but can't really say for sure).
I mean, there's a lot of hand-waving there (i.e. it would only be output which could complicate ease of using it practically) OTOH it might free up resources?
(I'm not experienced in this hardware level so I apologize if this idea is absolutely stupid/impractical.)
There's really clever ways you can get down to scratch that space-saving itch; I'm not knowledgeable about it either (I'm just really bad when it comes to analog signals) but if you really, really needed to shave off even more stuff; I reckon that the video console driver could possibly be reduced to something far more esoteric (That'd need signal processing to get tangible output of). But at that point, just use UART (Which is simple-enough already and should not really starve you out of much memory).
cakehonolulu•4h ago
faragon•1h ago
[1] https://github.com/ika-musume/HS3
cakehonolulu•54m ago
Honestly, no idea if Krikkz's Extended SSFv2 is even implemented on MiSTer. I'd have to check but considering the rarity of it I'd be surprised if it was there.
Porting Linux to SH3 is surely easier than what it has been for SH2 (SH7604, more precisely); and considering it has 512MB of RAM you probably can just get away with a non-stripped to the bones Linux image (And initramfs, of course). It surely sounds like a good playground.
msk-lywenn•2m ago