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ShadowOne333 / The-Legend-of-Zelda-Redux

Source code for the hack The Legend of Zelda Redux
GNU General Public License v3.0
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Applying "Original NES GFX.ips" causes the game to not start, "Link's Awakening GFX.ips" graphical glitches (both only with MMC1 version) #12

Closed auburnbit closed 2 years ago

auburnbit commented 2 years ago

Update3: Branched the repository and submitted a pull request.

UPDATE2: Found the fix. In src/MMC1/code/optional/OriginalGFX.asm, change line 36 from:

org $AE9B // 0x0EEAB to org $AEA0 // 0x0EEB0

The location of the animated tile frames had been shifted a few bytes between 2.0 and 3.0.

Emulators: FCEUX 2.6.1 and Mesen 0.9.9 Steps to reproduce: Use base ROM: "Legend of Zelda, The (USA).nes" (CRC-32: D7AE93DF, MD5: 337bd6f1a1163df31bf2633665589ab0) Apply "Zelda1_Redux.ips" (CRC-32 of IPS: EFAFF81D) Apply "Original NES GFX.ips" (CRC-32 of IPS: A8A89591) from the MMC1 version's optional patches folder. (Final bugged ROM should have CRC-32: 71752410)

// The game will not start when loaded in either emulator. // (This does not appear to be an issue with the MMC5 version.)

// update: compiling from current source with incsrc code/optional/OriginalGFX.asm // active in optional.asm does not fix the problem.