23 lines
1 KiB
Text
23 lines
1 KiB
Text
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 2 versions of assember for the HP PA-RISC.
|
|
pa-risc.s is the origional one which works fine.
|
|
pa-risc2.s is a new version that often generates warnings but if the
|
|
tests pass, it gives performance that is over 2 times faster than
|
|
pa-risc.s.
|
|
Both were generated using gcc :-)
|