Posted: 5/29/2017 5:07 PM
Post subject: Difference between SNES cores?
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Mysticum
He/Him
Joined: 5/28/2017
Posts: 2
Hello there, I'm new to the forum and have a question regarding SNES cores. I tried to find any information on the homepage but found nothing (if there is, please link it if you find anything). I wonder what the difference is between Compatibility and Performance, besides that debugging tools work better with Compatibility. I am not doing any TAS related stuff, just regular speedrunning, so I wonder if there would be any performance issues (like speed or fps or input delay) with Compatibility core instead of Performance. The reason I'm wondering is because I want to run a practice ROM (ALttP) that only seems to work with the Compatibility core. Starting with Performance core makes nothing happen. -- I'm using a modded version of the practice ROM. The original one ([MOD EDIT: Removed ROM link to patched ROM. --Mothrayas]) causes problem in the beginning when you try to create a new file. I was told this is because it tries to allocate a larger SRAM than what is normal, and the emulator can't handle this (works in Snes9X and bsnes). Is there any workaround for this ROM to work with BizHawk, like a setting that allows larger SRAM allocation? (This is the case for both cores with the original practice ROM.)
Posted: 5/29/2017 6:26 PM
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TheRealThingy
Player (152)
Joined: 5/25/2015
Posts: 49
The ROM may be pached but still, a full game is a full game. http://tasvideos.org/SiteRules.html
Posted: 5/29/2017 6:58 PM
(Edited: 5/30/2017 11:23 AM)
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creaothceann
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Joined: 4/7/2005
Posts: 1874
Location: Germany
Performance core is less accurate. Movies created with that core will probably not sync on real hardware.
Posted: 5/30/2017 12:41 AM
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Amaraticando
It/Its
Editor, Player (159)
Joined: 1/10/2012
Posts: 673
Location: Brazil
TAS of 2015 SNES TAS of 2015
https://web.archive.org/web/20150427100218/https://gitorious.org/bsnes/pages/EmulationCoreComparison
Posted: 5/30/2017 7:41 AM
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Mysticum
He/Him
Joined: 5/28/2017
Posts: 2
Sorry for breaking the rules there. Thanks for the link. Since I'm running at a good computer, and CPU shouldn't be an issue, compatibility should run at least as fast as performance in other words? (What I mean is that I don't want to lose any time when speedrunning on compatibility core compared to performance.) Also, anyone know anything about allowing allocation of the larger SRAM?
Posted: 5/30/2017 11:28 AM
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creaothceann
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Editor
Joined: 4/7/2005
Posts: 1874
Location: Germany
Can't you mod the patched version so that it works in BizHawk? It's probably something related to the internal header.