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Fix detection of native NDS ARM BIOS images (#1910)

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* Fix detection of native NDS ARM BIOS images

- Instead of checking for built-in BIOS images, now the altered methods check for native ones
- The CRC32 must match exactly; patched BIOS images will result in `false`

* Encapsulate `NDS::ARM9BIOS` and `ARM7BIOS`

- Also compute the checksum only when setting the BIOS
This commit is contained in:
Jesse Talavera
2023-12-15 08:54:41 -05:00
committed by GitHub
parent c867a7f1c0
commit 24c402af51
6 changed files with 49 additions and 15 deletions
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2
src/MemConstants.h
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@ -32,6 +32,8 @@ constexpr u32 ARM7BIOSSize = 0x4000;
constexpr u32 DSiBIOSSize = 0x10000;
constexpr u32 ITCMPhysicalSize = 0x8000;
constexpr u32 DTCMPhysicalSize = 0x4000;
constexpr u32 ARM7BIOSCRC32 = 0x1280f0d5;
constexpr u32 ARM9BIOSCRC32 = 0x2ab23573;
}
#endif // MELONDS_MEMCONSTANTS_H