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SMB3 - Sound Effect Fix

Hack of Super Mario Bros. 3

Description:

This patch fixes the bug notably known for causing the “Extended 1up Sound Effect”. It changes a single instruction (STY to STA) so that the 1up sound effect is correctly masked out by the byte-defined sound effects (e.g. Raccoon tail wag).

Hacking was done by modifying the SMB3 disassembly provided by (captain)southbird. You will need an IPS patch installer to patch the rom such as Lunar IPS.

ROM / ISO Information:

  • Database match: Super Mario Bros. 3 (USA)
  • Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
  • File SHA-1: A03E7E526E79DF222E048AE22214BCA2BC49C449
  • File CRC32: 85A79D9C
  • ROM SHA-1: A611B90B4833B20A364BF06EE3BE3B9093EA4DF9
  • ROM CRC32: A0B0B742

Links:

Screenshots:


Credits:

Credits
ContributorType of contributionListed credit
TakuikaNinjaHacking
SouthbirdOriginal HackingProvided disassembly

User Review Information

Neat!

Reviewed By: beinor on 19 May 2020

I watched a YouTube video that explained this phenomenon recently. It is neat that you took the time to make this a patch. To learn more about this programming error, watch this video from Retro Gaming Mechanics Explained: https://www.youtube.com/watch?v=2VHySu_jaPw

Version 1.0 Recommended - Yes

User Reviews
HeadlineAuthorDateVersionRecommended
Neat!beinor19 May 20201.0Yes