Import OpenSSL-1.0.1d.
[dragonfly.git] / crypto / openssl / crypto / whrlpool / asm / wp-mmx.pl
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5febbddd
PA
1#!/usr/bin/env perl
2#
3# ====================================================================
4# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
5# project. Rights for redistribution and usage in source and binary
6# forms are granted according to the OpenSSL license.
7# ====================================================================
8#
9# whirlpool_block_mmx implementation.
10#
11*SCALE=\(2); # 2 or 8, that is the question:-) Value of 8 results
12# in 16KB large table, which is tough on L1 cache, but eliminates
13# unaligned references to it. Value of 2 results in 4KB table, but
14# 7/8 of references to it are unaligned. AMD cores seem to be
15# allergic to the latter, while Intel ones - to former [see the
16# table]. I stick to value of 2 for two reasons: 1. smaller table
17# minimizes cache trashing and thus mitigates the hazard of side-
18# channel leakage similar to AES cache-timing one; 2. performance
19