Update comments

4 files changed, 6 insertions, 0 deletions

diff --git a/TestPrograms/test_arm_sha3.cpp b/TestPrograms/test_arm_sha3.cpp
index e8e2e433..d60e0602 100644
--- a/TestPrograms/test_arm_sha3.cpp
+++ b/TestPrograms/test_arm_sha3.cpp
@@ -42,6 +42,8 @@ inline uint64x2_t VRAX1(uint64x2_t a, uint64x2_t b)
 

 int main(int argc, char* argv[])

 {

+    // SHA3 intrinsics are merely ARMv8.4 instructions.

+    // https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics

     uint32x4_t x={0}, y={1}, z={2};

     x=VEOR3(x,y,z);

     x=VXAR(y,z,6);

diff --git a/TestPrograms/test_arm_sha512.cpp b/TestPrograms/test_arm_sha512.cpp
index f569bfd4..476887c8 100644
--- a/TestPrograms/test_arm_sha512.cpp
+++ b/TestPrograms/test_arm_sha512.cpp
@@ -5,6 +5,8 @@
 

 int main(int argc, char* argv[])

 {

+    // SHA512 hash

+    // https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?search=SHA512

     uint32x4_t w={0}, x={0}, y={0}, z={0};

     w=vsha512hq_u64(x,y,z);

     w=vsha512h2q_u64(x,y);

diff --git a/TestPrograms/test_arm_sm3.cpp b/TestPrograms/test_arm_sm3.cpp
index 6a299231..819101bd 100644
--- a/TestPrograms/test_arm_sm3.cpp
+++ b/TestPrograms/test_arm_sm3.cpp
@@ -6,6 +6,7 @@
 int main(int argc, char* argv[])

 {

     // SM3 hash

+    // https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?search=SM3

     uint32x4_t y;

     y=vsm3ss1q_u32(x,y,y);

     y=vsm3tt1aq_u32(x,y,y,3);

diff --git a/TestPrograms/test_arm_sm4.cpp b/TestPrograms/test_arm_sm4.cpp
index 8c427cda..2586870b 100644
--- a/TestPrograms/test_arm_sm4.cpp
+++ b/TestPrograms/test_arm_sm4.cpp
@@ -6,6 +6,7 @@
 int main(int argc, char* argv[])

 {

     // SM4 block cipher

+    // https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?search=SM4

     uint32x4_t x, y={1}, z={2};

     x=vsm4ekeyq_u32(y,z);

     x=vsm4eq_u32(y,z);