From: Niels Möller <nisse@lysator.liu.se>
Date: Tue, 14 May 2002 17:39:59 +0000 (+0200)
Subject: * x86/machine.m4 (AES_STORE): New macro.
X-Git-Tag: nettle_1.6_release_20021003~191
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd175463920af917aa12bbeca982d85de9bcbad9;p=thirdparty%2Fnettle.git

* x86/machine.m4 (AES_STORE): New macro.

Rev: src/nettle/x86/machine.m4:1.3
---

diff --git a/x86/machine.m4 b/x86/machine.m4
index d145b5b3..552de7a1 100644
--- a/x86/machine.m4
+++ b/x86/machine.m4
@@ -13,3 +13,20 @@ define(<AES_LAST_ROUND>, <
 	movl	%e<>$4<>x,%ebp
 	andl	<$>0xff000000,%ebp
 	orl	%ebp,%edi>)dnl
+
+dnl AES_STORE(key, dst)
+dnl Adds the subkey pointed to by %esi to %eax-%edx,
+dnl and stores the result in the area pointed to by %edi.
+dnl Note that x86 allows unaligned accesses.
+dnl Would it be preferable to interleave the loads and stores?
+define(<AES_STORE>, <
+	xorl	($1),%eax
+	xorl	4($1),%ebx
+	xorl	8($1),%ecx
+	xorl	12($1),%edx
+
+	movl	%eax,($2)
+	movl	%ebx,4($2)
+	movl	%ecx,8($2)
+	movl	%edx,12($2)>)dnl
+