From 13070098a3b8bfe64b14eb8d0a005152ade10833 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Wed, 20 Oct 2004 18:28:18 +0200
Subject: [PATCH] * x86/arcfour-crypt.asm: Reduced inner loop by one
 instruction, by precomputing the offset between src and dst.

Rev: src/nettle/x86/arcfour-crypt.asm:1.9
---
 x86/arcfour-crypt.asm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/x86/arcfour-crypt.asm b/x86/arcfour-crypt.asm
index 7056c50b..43e4f7d3 100644
--- a/x86/arcfour-crypt.asm
+++ b/x86/arcfour-crypt.asm
@@ -59,6 +59,7 @@ C Register usage:
 	
 	movzbl  256(%ebp), %eax		C  i
 	movzbl  257(%ebp), %ebx		C  j
+	subl	%esi, %edi
 .Lloop:
 C	incb	%al
 	incl	%eax
@@ -75,9 +76,8 @@ C	addb    %cl, %bl
 					C  for indexing.
 	movb    (%ebp, %ecx), %cl
 	xorb    (%esi), %cl
+	movb    %cl, (%esi,%edi)
 	incl    %esi
-	movb    %cl, (%edi)
-	incl    %edi
 	cmpl	%esi, %edx
 	jne	.Lloop
 
-- 
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