From 3e4d8f433239c40311037616b1b8833a06651ae0 Mon Sep 17 00:00:00 2001
From: Arne Schwabe <arne@rfc2549.org>
Date: Mon, 16 Apr 2012 19:21:14 +0200
Subject: Initial import

---
 openssl/crypto/des/asm/desboth.pl | 79 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 openssl/crypto/des/asm/desboth.pl

(limited to 'openssl/crypto/des/asm/desboth.pl')

diff --git a/openssl/crypto/des/asm/desboth.pl b/openssl/crypto/des/asm/desboth.pl
new file mode 100644
index 00000000..eec00886
--- /dev/null
+++ b/openssl/crypto/des/asm/desboth.pl
@@ -0,0 +1,79 @@
+#!/usr/local/bin/perl
+
+$L="edi";
+$R="esi";
+
+sub DES_encrypt3
+	{
+	local($name,$enc)=@_;
+
+	&function_begin_B($name,"");
+	&push("ebx");
+	&mov("ebx",&wparam(0));
+
+	&push("ebp");
+	&push("esi");
+
+	&push("edi");
+
+	&comment("");
+	&comment("Load the data words");
+	&mov($L,&DWP(0,"ebx","",0));
+	&mov($R,&DWP(4,"ebx","",0));
+	&stack_push(3);
+
+	&comment("");
+	&comment("IP");
+	&IP_new($L,$R,"edx",0);
+
+	# put them back
+	
+	if ($enc)
+		{
+		&mov(&DWP(4,"ebx","",0),$R);
+		 &mov("eax",&wparam(1));
+		&mov(&DWP(0,"ebx","",0),"edx");
+		 &mov("edi",&wparam(2));
+		 &mov("esi",&wparam(3));
+		}
+	else
+		{
+		&mov(&DWP(4,"ebx","",0),$R);
+		 &mov("esi",&wparam(1));
+		&mov(&DWP(0,"ebx","",0),"edx");
+		 &mov("edi",&wparam(2));
+		 &mov("eax",&wparam(3));
+		}
+	&mov(&swtmp(2),	(DWC(($enc)?"1":"0")));
+	&mov(&swtmp(1),	"eax");
+	&mov(&swtmp(0),	"ebx");
+	&call("DES_encrypt2");
+	&mov(&swtmp(2),	(DWC(($enc)?"0":"1")));
+	&mov(&swtmp(1),	"edi");
+	&mov(&swtmp(0),	"ebx");
+	&call("DES_encrypt2");
+	&mov(&swtmp(2),	(DWC(($enc)?"1":"0")));
+	&mov(&swtmp(1),	"esi");
+	&mov(&swtmp(0),	"ebx");
+	&call("DES_encrypt2");
+
+	&stack_pop(3);
+	&mov($L,&DWP(0,"ebx","",0));
+	&mov($R,&DWP(4,"ebx","",0));
+
+	&comment("");
+	&comment("FP");
+	&FP_new($L,$R,"eax",0);
+
+	&mov(&DWP(0,"ebx","",0),"eax");
+	&mov(&DWP(4,"ebx","",0),$R);
+
+	&pop("edi");
+	&pop("esi");
+	&pop("ebp");
+	&pop("ebx");
+	&ret();
+	&function_end_B($name);
+	}
+
+
-- 
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