Weird Yoshi's Island Stuff

[non-1337]

Uh, just wanted to report this, when playing Yoshi's Island (and some other games, I can't remember), Yoshi's head seems to "flicker" and pop out of place. The weird thing is that it seems to be pretty random, happening at random times/places. Also, when taking screenshots (I've taken a lot of 'em), the shots look pretty normal, so I didn't post any. I thought that it was the ROM, but it never happens (or happened) at SNES9x or the non-WIP zSNES. Here is the ROM info:

File: Super Mario World 2 - Yoshi's Island (E) (V1.0).smc Header: No
YOSHI'S ISLAND TYPE:SUPER FX
INTERLEAVED:No BANK:Lo CHKSUM:OK
VIDEO:PAL CRC32:7BDC6A78

I'm using 10/24/04WIP and on an AthlonXP 1050 Thunderbird, nVidia TNT2 Video card (using latest drivers), on Windows XP, by the way.

.. Oh, wait, I just remembered some of the games I saw this in: Syodai Nekketsu Kouha Kunio Kun, and Super Genjin 2.

Thanks a lot.

[snkcube]

Well, it doesn't happen on my US version. Maybe it's a PAL issue?

Code: Select all

Yoshi's Island (V1.0) (U).smc Header: Yes
YOSHI'S ISLAND          TYPE:SUPER FX   
INTERLEAVED:No    BANK:Lo    CHKSUM:OK  
VIDEO:NTSC                CRC32:D138F224

[Agozer]

Well, it doesn't happen on my US version. Maybe it's a PAL issue?

Code: Select all

Yoshi's Island (V1.0) (U).smc Header: Yes
YOSHI'S ISLAND          TYPE:SUPER FX   
INTERLEAVED:No    BANK:Lo    CHKSUM:OK  
VIDEO:NTSC                CRC32:D138F224

very likely, since my US version is ok as well.

[Nach]

CRC32:7BDC6A78

CRC32 Unknown. There's a decent chance your ROM is bad or interleaved.

[adventure_of_link]

Post the results of Nach's SNES ROM Tool (or NSRT )

[non-1337]

Here it is:
NSRT v3.3 RC1 - Nach's SNES ROM Tools

---------------------Internal ROM Info----------------------
File: YISLAND.smc
Name: YOSHI'S ISLAND Company: Nintendo
Header: None Bank: LoROM
Interleaved: Super FX SRAM: 256 Kb
Type: Super FX2 + Batt ROM: 16 Mb
Country: Euro/Asia/Oceania Video: PAL
ROM Speed: 200ns (SlowROM) Version: 1.0
Checksum: Good 0xE10B CRC32: 857980B2
--------------------------Database--------------------------
Name: Super Mario World 2 - Yoshi's Island
Country: Europe Version: 1.0
Port 1: Gamepad Port 2: Gamepad

Thanks a lot...

[Nach]

Yup, it's interleaved. Fix it by using -deint, then see if ZSNES still has problems with it.

[adventure_of_link]

CRC32 Unknown. There's a decent chance your ROM is bad or interleaved.

Yup, it's interleaved.

Damn Nach, how did you get so good at knowing when a ROM is interleaved or not

[Nach]

CRC32 Unknown. There's a decent chance your ROM is bad or interleaved.

Yup, it's interleaved.

Damn Nach, how did you get so good at knowing when a ROM is interleaved or not

Practice makes perfect. Working with SNES ROMs for 4 years on the cutting edge of research, you really start to get a feel for what you can expect based on minimal data.

[non-1337]

Alright, deinterleaved my ROM (can anyone tell me what's the difference between interlewved and non-interleaved ROMs?)
.. I was testing a few state saves, and the flickering was still there.. It wasn't just on Yoshi, but it was on anything resembling the color pink (blocks, yoshi, baddies, etc)! Hope someone can figure this out...
Thanks again.

[Nach]

Alright, deinterleaved my ROM (can anyone tell me what's the difference between interlewved and non-interleaved ROMs?)

Read: http://nsrt.edgeemu.com/forum/kb.php?mode=article&k=2

[non-1337]

Thank You. Sorry for the bothersome question.

[illegal eagle]

I was testing a few state saves, and the flickering was still there

Try if the problems disappear when you play without savestates. They might also disappear when you enter a new area of the game (eg. map screen etc.).