X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbn%2Fasm%2Fbn-c64xplus.asm;h=de6d37728fbac7ea0c6aa3301a2aa6c33ec5b15f;hb=77b072504ec464eac5e0f9aab19cadb9c4e311d1;hp=f07b09e439bb2f2d6363761fe812af2de0dee586;hpb=904732f68bcc6ebd3f8961a9272bc811dc26bcbd;p=oweals%2Fopenssl.git

diff --git a/crypto/bn/asm/bn-c64xplus.asm b/crypto/bn/asm/bn-c64xplus.asm
index f07b09e439..de6d37728f 100644
--- 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.
@@ -12,6 +19,10 @@
 ;; SPLOOPs spin at ... 2*n cycles [plus epilogue].
 ;;====================================================================
 	.text
+
+	.if	.ASSEMBLER_VERSION<7000000
+	.asg	0,__TI_EABI__
+	.endif
 	.if	__TI_EABI__
 	.asg	bn_mul_add_words,_bn_mul_add_words
 	.asg	bn_mul_words,_bn_mul_words
@@ -280,8 +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