Check for the presence of _WIN32 rather than its value.

[oweals/openssl.git] / crypto / bn / asm / bn-c64xplus.asm

diff --git a/crypto/bn/asm/bn-c64xplus.asm b/crypto/bn/asm/bn-c64xplus.asm
index 7cd58817e72790b6df43bec01c5c07260922c16f..de6d37728fbac7ea0c6aa3301a2aa6c33ec5b15f 100644 (file)
--- a/crypto/bn/asm/bn-c64xplus.asm
+++ b/crypto/bn/asm/bn-c64xplus.asm
@@ -1,3 +1,10 @@
+;; Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved.
+;;
+;; Licensed under the OpenSSL license (the "License").  You may not use
+;; this file except in compliance with the License.  You can obtain a copy
+;; in the file LICENSE in the source distribution or at
+;; https://www.openssl.org/source/license.html
+;;
 ;;====================================================================
 ;; Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
 ;; project.
@@ -284,8 +291,9 @@ _bn_mul_comba4:
        .if     0
        BNOP    sploopNxM?,3
        ;; Above mentioned m*2*(n+1)+10 does not apply in n=m=4 case,
-       ;; because of read-after-write penalties, it's rather
-       ;; n*2*(n+3)+10, or 66 cycles [plus various overheads]...
+       ;; because of low-counter effect, when prologue phase finishes
+       ;; before SPKERNEL instruction is reached. As result it's 25%
+       ;; slower than expected...
        MVK     4,B0            ; N, RILC
 ||     MVK     4,A0            ; M, outer loop counter
 ||     MV      ARG1,A5         ; copy ap