cpp/openttd-patchpack/source Changeset - r18067:b0b21f9aa12b

Changeset - r18067:b0b21f9aa12b

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glx - 13 years ago 2011-09-06 00:10:20
glx@openttd.org

(svn r22898) -Codechange: use MSVC compiler intrinsics for byte swapping

1 file changed with 4 insertions and 0 deletions:

src/core/bitmath_func.hpp

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src/core/bitmath_func.hpp

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@@ @@ -355,6 +355,10 @@ static FORCEINLINE T ROR(const T x, cons @@
 	 * warnings if we don't cast those (why?) */
 	#define BSWAP32(x) ((uint32)Endian32_Swap(x))
 	#define BSWAP16(x) ((uint16)Endian16_Swap(x))
 #elif defined(_MSC_VER)
 	/* MSVC has intrinsics for swapping, resulting in faster code */
 	#define BSWAP32(x) (_byteswap_ulong(x))
 	#define BSWAP16(x) (_byteswap_ushort(x))
 #else
 	/**
 	 * Perform a 32 bits endianness bitswap on x.

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