From dd111a6174278686f872ddbff020d94b4b0f9de9 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Thu, 15 Nov 2018 16:23:21 -0500
Subject: [PATCH] Update documentation

---
 ppc_simd.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ppc_simd.h b/ppc_simd.h
index 5677a63f..d4c9b201 100644
--- a/ppc_simd.h
+++ b/ppc_simd.h
@@ -43,12 +43,16 @@ NAMESPACE_BEGIN(CryptoPP)
 
 #if defined(__ALTIVEC__) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
 
-// Datatypes
+/// \brief Vector of 8-bit elements
 typedef __vector unsigned char   uint8x16_p;
+/// \brief Vector of 16-bit elements
 typedef __vector unsigned short  uint16x8_p;
+/// \brief Vector of 32-bit elements
 typedef __vector unsigned int    uint32x4_p;
 
-#if defined(_ARCH_PWR8)
+#if defined(_ARCH_PWR8) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
+/// \brief Vector of 64-bit elements
+/// \details uint64x2_p is available on POWER8 and above
 typedef __vector unsigned long long uint64x2_p;
 #endif  // _ARCH_PWR8