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BMF54123 · Posted: Sat Oct 13, 2007 10:43 am Post subject: Pescatore bugfix v1.0

Thanks to the magic of FCE Ultra movie files and a bored roommate (again, sorry for pulling you into this), I've finally tracked down the bug that was causing the game to randomly glitch and/or crash. Yay.

Pescatore bugfix v1.0

Technical blah: an NMI routine and the sound effect-playing code were sharing a couple of scratch RAM addresses. If NMI hit during a specific part of the sound code (usually when there was a lot of activity on-screen), it would overwrite an indirect JMP address and send the game into la-la land. Oops. Moving the JMP address elsewhere in RAM for the duration of NMI fixed the problem.

I also fixed the bug that was corrupting parts of the turtle sprite in the credits. The game was merely writing background tiles to the wrong VRAM addresses. Sigh.

Enjoy, or something.

ArnoldRimmer83 · Staff Joined: 28 Aug 2003 Posts: 540

Nice. I had wondered if it would have been possible to fix the freeze glitch. Thanks BMF. This is probably the closest the game will be to what a retail release would've been like.

Xkeeper · Joined: 04 Nov 2005 Posts: 327 Location: Henderson, NV

There's still a lot that could be done (little touches here and there, such as making the ○ marks change into ● instead of flashing/animating or other tricks, like having a seperate copy of the tiles in VRAM that animate rather than animating the playing field itself) as well as a few other misc. things (2P mode, anybody?) but aside from that, at least it runs now. Hooray!

I'll probably do a mini-review of it later today if I get some free time, to explain some things. The review on Lost Levels is needlessly harsh and shows that whoever wrote it didn't have a damn clue about how to play it.

Skrybe · Staff Joined: 28 Aug 2003 Posts: 1610

Very cool, BMF. I'd been wondering for a long time if the game had been dumped correctly due to the freezing issues and stuff. That's a relief to know it was a programming glitch rather than a bad dump. A bugfix without the altered copyright info would be kinda nice, though...

AlabasterGothe · Posted: Sun Oct 14, 2007 1:46 am Post subject:

Nice!

I'm gonna have to try this out, and I've been playing this for the last few days too. Thanks for making me stay up late playing this fixed version now! Very Happy

BMF54123 · Posted: Sun Oct 14, 2007 5:33 am Post subject:

I added the text mostly so the ROM wouldn't get mistaken for an alternate revision (hello GoodNES), but I suppose I can release a ROM with just the bugfixes if enough people want it.

Smeg · Posted: Sun Oct 14, 2007 6:03 pm Post subject:

You're insane, BMF. Thank you for being insane.

KingMike · Joined: 04 Nov 2003 Posts: 898

Thanks a lot BMF, makes the game much better.
Mind if I make a patch for preservation on romhacking.net?

BMF54123 · Posted: Sun Oct 14, 2007 9:44 pm Post subject:

Sure, go for it.

Xkeeper · Joined: 04 Nov 2005 Posts: 327 Location: Henderson, NV

I made a quick review-tutorial thing of the game here.

Hopefully it will be useful.

kap · Posted: Mon Oct 15, 2007 9:02 pm Post subject:

adaml · Staff Joined: 28 Aug 2003 Posts: 616 Location: In the VIP

"If you put your mind to it, you can accomplish anything." - Robert M. McFly.

BMF, thanks again (for about the 4th time) for that Cheetahmen II patch you made about 7 or 8 years ago. People still ask me for that patch from my FAQ of the game.

Carnivol · Posted: Tue Oct 16, 2007 3:34 am Post subject:

-So, what do we do now, young sir Albert?
"That answer is simple, Dr.Johnson! To the PowerPak!"

Lovely, BMF! I suppose I'll have to try it out on my tr-/Dusty old NES if I get the time for it soon-ish. (Never actually got around to trying Pescatore in the first place)

Ichiban Crush · Posted: Sun Nov 04, 2007 3:04 am Post subject:

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