Update comments

1 files changed, 4 insertions, 5 deletions

diff --git a/rijndael.cpp b/rijndael.cpp
index 25d172a0..e5079d9b 100644
--- a/rijndael.cpp
+++ b/rijndael.cpp
@@ -356,16 +356,15 @@ void Rijndael::Base::UncheckedSetKey(const byte *userKey, unsigned int keyLen, c
 	{

 		ConditionalByteReverse(BIG_ENDIAN_ORDER, rk+4, rk+4, (m_rounds-1)*16);

 

+#if defined(IS_LITTLE_ENDIAN)

 		// VSX registers are big-endian. The entire subkey table must be byte

-		//   reversed on little-endian systems to ensure it loads properly.

-		//   I believe we should do this when msr.le=1, but I can't find an

-		//   intrinsic to access the machine status register. In the meantime

-		//   we will do it anytime IS_LITTLE_ENDIAN is true.

+		// reversed on little-endian systems to ensure it loads properly.

 		byte * ptr = reinterpret_cast<byte*>(rk);

 		for (unsigned int i=0; i<=m_rounds; i++)

 			ByteReverseArrayLE(ptr+i*16);

+#endif  // IS_LITTLE_ENDIAN

 	}

-#endif

+#endif  // CRYPTOPP_POWER8_AES_AVAILABLE

 }

 

 void Rijndael::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const