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diff --git a/src/haptictriggerps5.cpp b/src/haptictriggerps5.cpp
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index 414598a6..3caaff4a 100644
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--- a/src/haptictriggerps5.cpp
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+++ b/src/haptictriggerps5.cpp
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@@ -27,7 +27,7 @@ constexpr u16 u16tole(u16 x)
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 {
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 #if __BYTE_ORDER == __LITTLE_ENDIAN
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     return x;
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-#elif __BYTE_ORDER == _BIG_ENDIAN
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+#elif __BYTE_ORDER == __BIG_ENDIAN
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     return ((x << 8) & 0xFF00) | ((x >> 8) & 0x00FF);
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 #else
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     #error "Target machine has unknown endianness!"
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@@ -38,7 +38,7 @@ constexpr u32 u32tole(u32 x)
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 {
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 #if __BYTE_ORDER == __LITTLE_ENDIAN
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     return x;
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-#elif __BYTE_ORDER == _BIG_ENDIAN
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+#elif __BYTE_ORDER == __BIG_ENDIAN
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     return ((x << 24) & 0xFF000000) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | ((x >> 24) & 0x000000FF);
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 #else
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     #error "Target machine has unknown endianness!"