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dsrom: fix Battle of Giants Mutant Insects #29

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Merged
coderkei merged 1 commit into from
Mar 4, 2026
Merged

dsrom: fix Battle of Giants Mutant Insects #29

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3 changes: 2 additions & 1 deletion arm9/source/dsrom.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,8 @@ bool DSRomInfo::loadDSRomInfo(const std::string& filename, bool loadBanner) {
_isModernHomebrew = ETrue;
u32 arm9StartSig[4] = {0};
//Seek to ARM9 entry point and read first 4 instructions
fseek(f, (u32)header.arm9romOffset + (u32)header.arm9executeAddress - (u32)header.arm9destination, SEEK_SET);
// "Battle/Combat of Giants: Mutant Insects" (TID: BIG) has code that is run before the actual SDK boot code
fseek(f, (u32)header.arm9romOffset + ((strncmp(header.gameCode, "BIG", 3) == 0) ? 0x02000800 : (u32)header.arm9executeAddress) - (u32)header.arm9destination, SEEK_SET);
fread(arm9StartSig, sizeof(u32), 4, f);

//Check for Nintendo SDK style retail builds
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