[nostalgia/tools/pack] Add GbaPlatSpec

src/nostalgia/tools/pack/pack.hpp

@@ -10,7 +10,82 @@ namespace core {
 class TypeStore;
 }
 
-using GbaPreloader = ox::Preloader<ox::GbaPlatSpec>;
+struct GbaPlatSpec {
+	using PtrType = uint32_t;
+	using size_t = uint32_t;
+
+	static constexpr auto PtrAlign = 4;
+	static constexpr PtrType RomStart = 0x08000000;
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const bool) noexcept {
+		return 1;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const uint8_t) noexcept {
+		return 1;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const uint16_t) noexcept {
+		return 2;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const uint32_t) noexcept {
+		return 4;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const uint64_t) noexcept {
+		return 8;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const int8_t)  noexcept {
+		return 1;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const int16_t) noexcept {
+		return 2;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const int32_t) noexcept {
+		return 4;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const int64_t) noexcept {
+		return 8;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(auto*) noexcept {
+		return 4;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const auto*) noexcept {
+		return 4;
+	}
+
+	[[nodiscard]]
+	static constexpr std::size_t alignOf(const auto &v) noexcept {
+		ox::AlignmentCatcher<GbaPlatSpec> c;
+		oxAssert(model(c.interface(), &v), "Could not get alignment for type");
+		return c.biggestAlignment;
+	}
+
+	[[nodiscard]]
+	static constexpr auto correctEndianness(auto v) noexcept {
+		return ox::toLittleEndian(v);
+	}
+};
+
+using GbaPreloader = ox::Preloader<GbaPlatSpec>;
 
 ox::Error appendBinary(ox::Buffer *binBuff, ox::Buffer *fsBuff, GbaPreloader *pl) noexcept;