Update comments

1 files changed, 5 insertions, 1 deletions

diff --git a/misc.cpp b/misc.cpp
index 715b85fd..b5997301 100644
--- a/misc.cpp
+++ b/misc.cpp
@@ -24,7 +24,7 @@
 #endif

 

 #if defined(__ARM_FEATURE_NEON)

-# if (CRYPTOPP_ARM_NEON_HEADER)

+# if defined(CRYPTOPP_ARM_NEON_HEADER)

 #  include <arm_neon.h>

 # endif

 #endif

@@ -94,6 +94,8 @@ void xorbuf(byte *buf, const byte *mask, size_t count)
 	if (count == 0) return;

 #endif

 

+	// word64 and stride of 8 slows things down on x86_64.

+	// word64 and stride of 8 makes no difference on ARM.

 	while (count >= 4)

 	{

 		word32 r, b, m;

@@ -150,6 +152,8 @@ void xorbuf(byte *output, const byte *input, const byte *mask, size_t count)
 	if (count == 0) return;

 #endif

 

+	// word64 and stride of 8 slows things down on x86_64.

+	// word64 and stride of 8 makes no difference on ARM.

 	while (count >= 4)

 	{

 		word32 b, m, r;