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authorParménides GV <parmegv@sdf.org>2014-04-07 20:43:34 +0200
committerParménides GV <parmegv@sdf.org>2014-04-08 11:43:27 +0200
commitc206a91d320995f37f8abb33188bfd384249da3d (patch)
tree10a7d8a9dd7f24437ac4851b8d01edbd5dd3ee3b /openssl/crypto/bn/asm/README
parent910b0e1746ab3f63e63808b198ad51fec5b635e5 (diff)
Next step: compile jni sources correctly.
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-<OBSOLETE>
-
-All assember in this directory are just version of the file
-crypto/bn/bn_asm.c.
-
-Quite a few of these files are just the assember output from gcc since on
-quite a few machines they are 2 times faster than the system compiler.
-
-For the x86, I have hand written assember because of the bad job all
-compilers seem to do on it. This normally gives a 2 time speed up in the RSA
-routines.
-
-For the DEC alpha, I also hand wrote the assember (except the division which
-is just the output from the C compiler pasted on the end of the file).
-On the 2 alpha C compilers I had access to, it was not possible to do
-64b x 64b -> 128b calculations (both long and the long long data types
-were 64 bits). So the hand assember gives access to the 128 bit result and
-a 2 times speedup :-).
-
-There are 3 versions of assember for the HP PA-RISC.
-
-pa-risc.s is the origional one which works fine and generated using gcc :-)
-
-pa-risc2W.s and pa-risc2.s are 64 and 32-bit PA-RISC 2.0 implementations
-by Chris Ruemmler from HP (with some help from the HP C compiler).
-
-</OBSOLETE>