Write functions to handle loading and saving words a block at a time, taking into

account endian differences.

The current code does not take advantage of the knowledge of which endianness
we are running on; an optimization suggested by Yves Jerschow is to use (unsafe)
casts to speed up the load/store operations. This turns out to provide large
performance increases (30% or more) in some cases.

Even without the unsafe casts, this version seems to average a few percent
faster, probably because the longer loading loops have been partially or
fully unrolled.

This also makes the code implementing low-level algorithms like ciphers and
hashes a bit more succint.

1 files changed, 1 insertions, 1 deletions

diff --git a/include/adler32.h b/include/adler32.h
index 4a6975e90..4beb3bdb6 100644
--- a/include/adler32.h
+++ b/include/adler32.h
@@ -25,7 +25,7 @@ class Adler32 : public HashFunction
       void add_data(const byte[], u32bit);
       void final_result(byte[]);
       void hash(const byte[], u32bit);
-      u32bit S1, S2;
+      u16bit S1, S2;
    };
 
 }