From dfeab0689f69c0b4bd3480ffd37a9cacc2f17d9c Mon Sep 17 00:00:00 2001
From: "Ralf S. Engelschall" <rse@openssl.org>
Date: Mon, 21 Dec 1998 11:00:56 +0000
Subject: Import of old SSLeay release: SSLeay 0.9.1b (unreleased)

---
 crypto/bn/asm/x86/sqr.pl | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 crypto/bn/asm/x86/sqr.pl

(limited to 'crypto/bn/asm/x86/sqr.pl')

diff --git a/crypto/bn/asm/x86/sqr.pl b/crypto/bn/asm/x86/sqr.pl
new file mode 100644
index 0000000000..1f90993cf6
--- /dev/null
+++ b/crypto/bn/asm/x86/sqr.pl
@@ -0,0 +1,60 @@
+#!/usr/local/bin/perl
+# x86 assember
+
+sub bn_sqr_words
+	{
+	local($name)=@_;
+
+	&function_begin($name,"");
+
+	&comment("");
+	$r="esi";
+	$a="edi";
+	$num="ebx";
+
+	&mov($r,&wparam(0));	#
+	&mov($a,&wparam(1));	#
+	&mov($num,&wparam(2));	#
+
+	&and($num,0xfffffff8);	# num / 8
+	&jz(&label("sw_finish"));
+
+	&set_label("sw_loop",0);
+	for ($i=0; $i<32; $i+=4)
+		{
+		&comment("Round $i");
+		&mov("eax",&DWP($i,$a,"",0)); 	# *a
+		 # XXX
+		&mul("eax");			# *a * *a
+		&mov(&DWP($i*2,$r,"",0),"eax");	#
+		 &mov(&DWP($i*2+4,$r,"",0),"edx");#
+		}
+
+	&comment("");
+	&add($a,32);
+	&add($r,64);
+	&sub($num,8);
+	&jnz(&label("sw_loop"));
+
+	&set_label("sw_finish",0);
+	&mov($num,&wparam(2));	# get num
+	&and($num,7);
+	&jz(&label("sw_end"));
+
+	for ($i=0; $i<7; $i++)
+		{
+		&comment("Tail Round $i");
+		&mov("eax",&DWP($i*4,$a,"",0));	# *a
+		 # XXX
+		&mul("eax");			# *a * *a
+		&mov(&DWP($i*8,$r,"",0),"eax");	#
+		 &dec($num) if ($i != 7-1);
+		&mov(&DWP($i*8+4,$r,"",0),"edx");
+		 &jz(&label("sw_end")) if ($i != 7-1);
+		}
+	&set_label("sw_end",0);
+
+	&function_end($name);
+	}
+
+1;
-- 
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