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-rw-r--r--src/NDS_Header.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/NDS_Header.h b/src/NDS_Header.h
index de75f7c..77a5bac 100644
--- a/src/NDS_Header.h
+++ b/src/NDS_Header.h
@@ -39,6 +39,8 @@ enum RegionMask : u32
RegionFree = 0xFFFFFFFF,
};
+constexpr u32 DSiWareTitleIDHigh = 0x00030004;
+
// Consult GBATEK for info on what these are
struct NDSHeader
{
@@ -198,8 +200,9 @@ struct NDSHeader
u8 HeaderSignature[128]; // RSA-SHA1 across 0x000..0xDFF
- /// @return \c true if this header represents a DSi title
- /// (either a physical cartridge or a DSiWare title).
+ /// @return \c true if this header represents a title
+ /// that is DSi-exclusive (including DSiWare)
+ /// or DSi-enhanced (including cartridges).
[[nodiscard]] bool IsDSi() const { return (UnitCode & 0x02) != 0; }
[[nodiscard]] u32 GameCodeAsU32() const {
return (u32)GameCode[3] << 24 |
@@ -213,7 +216,7 @@ struct NDSHeader
}
/// @return \c true if this header represents a DSiWare title.
- [[nodiscard]] bool IsDSiWare() const { return IsDSi() && DSiRegionStart == 0; }
+ [[nodiscard]] bool IsDSiWare() const { return IsDSi() && DSiTitleIDHigh == DSiWareTitleIDHigh; }
};
static_assert(sizeof(NDSHeader) == 4096, "NDSHeader is not 4096 bytes!");