New Starfox Overclocked

[Drakon]

Me and doug stumbled across a way to get gsu 2 starfox 1 running much faster than before. Before the game could only go up to 28.3 mhz, but now I've got it happily running at 40 mhz which is a HUGE increase. It probably could go even faster but 40 mhz is really intense and if I made the game go any faster I think it would become too difficult.

http://www.youtube.com/watch?v=47rcZa72 ... ature=plcp

[tcancian]

Wow, gameplay got much faster, and apparently more playable too! Kudos on your work. How did you do it? Did you lifted a leg from the SuperFX and fed it with a 40 mhz crystal oscillator? Any gfx or sfx glitches? Think it's possible for Star Fox 2?

[Drakon]

Wow, gameplay got much faster, and apparently more playable too! Kudos on your work. How did you do it? Did you lifted a leg from the SuperFX and fed it with a 40 mhz crystal oscillator? Any gfx or sfx glitches? Think it's possible for Star Fox 2?

It's a little difficult you need to install the rom of the game onto a gsu 2 cartridge. The gsu 2 is the last version of the superfx chip. The gsu 2 has way less slowdown and can overclock faster than the other chip revisions. And yes I cut the clock trace to the gsu 2 and fed it the signal directly from a crystal oscillator. Unfortunately most games the programming screws up when overclocked past a certain speed.

Starfox 2 I did a while ago. Here's it running at 33 mhz. The default speed of these carts is 21.4 mhz

http://www.youtube.com/watch?v=tTNhccGs ... ature=plcp

Here's stunt race fx running at 30 mhz, it runs at 32 mhz but glitches at that speed

http://www.youtube.com/watch?v=iOAqQ2Qz ... ature=plcp

Here's doom. Doom was the easiest one because the game already comes on a gsu 2 cartridge so I didn't need to desolder the surface mount maskrom and solder up an eprom. In this video doom is running at 30 mhz but doom does periodically freeze at 30 mhz so I lowered it to 28.3 mhz and it stopped the freezing.

http://www.youtube.com/watch?v=BbX5TUwv ... rZJfK0ViGY

[tcancian]

Wow, gameplay got much faster, and apparently more playable too! Kudos on your work. How did you do it? Did you lifted a leg from the SuperFX and fed it with a 40 mhz crystal oscillator? Any gfx or sfx glitches? Think it's possible for Star Fox 2?

It's a little difficult you need to install the rom of the game onto a gsu 2 cartridge. The gsu 2 is the last version of the superfx chip. The gsu 2 has way less slowdown and can overclock faster than the other chip revisions. And yes I cut the clock trace to the gsu 2 and fed it the signal directly from a crystal oscillator. Unfortunately most games the programming screws up when overclocked past a certain speed.

Starfox 2 I did a while ago. Here's it running at 33 mhz. The default speed of these carts is 21.4 mhz

http://www.youtube.com/watch?v=tTNhccGs ... ature=plcp

Here's stunt race fx running at 30 mhz, it runs at 32 mhz but glitches at that speed

http://www.youtube.com/watch?v=iOAqQ2Qz ... ature=plcp

Here's doom. Doom was the easiest one because the game already comes on a gsu 2 cartridge so I didn't need to desolder the surface mount maskrom and solder up an eprom. In this video doom is running at 30 mhz but doom does periodically freeze at 30 mhz so I lowered it to 28.3 mhz and it stopped the freezing.

http://www.youtube.com/watch?v=BbX5TUwv ... rZJfK0ViGY

Truly amazing, congratulations! Stunt Race no longers looks like an slideshow!

[rendermatt]

Sweet good work