Index: openssl/crypto/bn/asm/README |
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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> |