WRAM clear oversight (Generation II)
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The WRAM clear oversight occurs in Generation II, and is confirmed to apply to Pokémon Crystal. The internal function "ClearWRAM" does not function correctly, due to a bug in the code, only clearing bank 1 of WRAM.[1] A similar glitch occurs in Pokémon Red, Blue, and Yellow (see WRAM clear oversight (Generation I)).
Relevant section in the Pokémon Crystal disassembly indicating patch to add with +
ClearWRAM:: ; Wipe swappable WRAM banks (1-7) ; Assumes CGB or AGB ld a, 1 .bank_loop push af ldh [rSVBK], a xor a ld hl, WRAM1_Begin ld bc, WRAM1_End - WRAM1_Begin call ByteFill pop af inc a cp 8 - jr nc, .bank_loop ; Should be jr c + jr c, .bank_loop ret
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Data from the Internet can be inaccurate or false, and it is easy to misremember information. For this reason there is more likely to be incorrect information in this article. This template will be removed once the information is peer-reviewed and tested by a staff or QC member. |
More research is needed for this article.
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Reason given: What purpose is ClearWRAM used for? |