From d37a65bc81e64d391696d31c504b8ce98e286b3f Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Tue, 3 May 2005 22:56:15 +0000
Subject: Throw in md5-x86_64 assembler.

---
 crypto/md5/asm/md5-x86_64.pl | 249 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 249 insertions(+)
 create mode 100755 crypto/md5/asm/md5-x86_64.pl

(limited to 'crypto/md5/asm')

diff --git a/crypto/md5/asm/md5-x86_64.pl b/crypto/md5/asm/md5-x86_64.pl
new file mode 100755
index 0000000000..f570f050e7
--- /dev/null
+++ b/crypto/md5/asm/md5-x86_64.pl
@@ -0,0 +1,249 @@
+#!/usr/bin/perl -w
+#
+# MD5 optimized for AMD64.
+#
+# Author: Marc Bevand <bevand_m (at) epita.fr>
+# Licence: I hereby disclaim the copyright on this code and place it
+# in the public domain.
+#
+
+use strict;
+
+my $code;
+
+# round1_step() does:
+#   dst = x + ((dst + F(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = z' (copy of z for the next step)
+# Each round1_step() takes about 5.71 clocks (9 instructions, 1.58 IPC)
+sub round1_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
+    $code .= " mov	%edx,		%r11d		/* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	xor	$y,		%r11d		/* y ^ ... */
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	and	$x,		%r11d		/* x & ... */
+	xor	$z,		%r11d		/* z ^ ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	add	%r11d,		$dst		/* dst += ... */
+	rol	\$$s,		$dst		/* dst <<< s */
+	mov	$y,		%r11d		/* (NEXT STEP) z' = $y */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round2_step() does:
+#   dst = x + ((dst + G(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = y' (copy of y for the next step)
+# Each round2_step() takes about 6.22 clocks (9 instructions, 1.45 IPC)
+sub round2_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	1*4(%rsi),	%r10d		/* (NEXT STEP) X[1] */\n" if ($pos == -1);
+    $code .= " mov	%ecx,		%r11d		/* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	xor	$x,		%r11d		/* x ^ ... */
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	and	$z,		%r11d		/* z & ... */
+	xor	$y,		%r11d		/* y ^ ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	add	%r11d,		$dst		/* dst += ... */
+	rol	\$$s,		$dst		/* dst <<< s */
+	mov	$x,		%r11d		/* (NEXT STEP) y' = $x */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round3_step() does:
+#   dst = x + ((dst + H(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = y' (copy of y for the next step)
+# Each round3_step() takes about 4.26 clocks (8 instructions, 1.88 IPC)
+sub round3_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	5*4(%rsi),	%r10d		/* (NEXT STEP) X[5] */\n" if ($pos == -1);
+    $code .= " mov	%ecx,		%r11d		/* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
+    $code .= <<EOF;
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	xor	$z,		%r11d		/* z ^ ... */
+	xor	$x,		%r11d		/* x ^ ... */
+	add	%r11d,		$dst		/* dst += ... */
+	rol	\$$s,		$dst		/* dst <<< s */
+	mov	$x,		%r11d		/* (NEXT STEP) y' = $x */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+# round4_step() does:
+#   dst = x + ((dst + I(x,y,z) + X[k] + T_i) <<< s)
+#   %r10d = X[k_next]
+#   %r11d = not z' (copy of not z for the next step)
+# Each round4_step() takes about 5.27 clocks (9 instructions, 1.71 IPC)
+sub round4_step
+{
+    my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
+    $code .= " mov	\$0xffffffff,	%r11d\n" if ($pos == -1);
+    $code .= " xor	%edx,		%r11d		/* (NEXT STEP) not z' = not %edx*/\n"
+    if ($pos == -1);
+    $code .= <<EOF;
+	lea	$T_i($dst,%r10d),$dst		/* Const + dst + ... */
+	or	$x,		%r11d		/* x | ... */
+	xor	$y,		%r11d		/* y ^ ... */
+	add	%r11d,		$dst		/* dst += ... */
+	mov	$k_next*4(%rsi),%r10d		/* (NEXT STEP) X[$k_next] */
+	mov	\$0xffffffff,	%r11d
+	rol	\$$s,		$dst		/* dst <<< s */
+	xor	$y,		%r11d		/* (NEXT STEP) not z' = not $y */
+	add	$x,		$dst		/* dst += x */
+EOF
+}
+
+my $output = shift;
+open STDOUT,">$output" or die "can't open $output: $!";
+
+$code .= <<EOF;
+.text
+.align 16
+
+.globl md5_block_asm_host_order
+.type md5_block_asm_host_order,\@function
+md5_block_asm_host_order:
+	push	%rbp
+	push	%rbx
+	push	%r12
+	push	%r13
+	push	%r14
+	push	%r15
+
+	# rdi = arg #1 (ctx, MD5_CTX pointer)
+	# rsi = arg #2 (ptr, data pointer)
+	# rdx = arg #3 (nbr, number of 16-word blocks to process)
+	mov	%rdi,		%rbp	# rbp = ctx
+	shl	\$6,		%rdx	# rdx = nbr in bytes
+	lea	(%rsi,%rdx),	%rdi	# rdi = end
+	mov	0*4(%rbp),	%eax	# eax = ctx->A
+	mov	1*4(%rbp),	%ebx	# ebx = ctx->B
+	mov	2*4(%rbp),	%ecx	# ecx = ctx->C
+	mov	3*4(%rbp),	%edx	# edx = ctx->D
+	push	%rbp			# save ctx
+	# end is 'rdi'
+	# ptr is 'rsi'
+	# A is 'eax'
+	# B is 'ebx'
+	# C is 'ecx'
+	# D is 'edx'
+
+	cmp	%rdi,		%rsi		# cmp end with ptr
+	je	1f				# jmp if ptr == end
+
+	# BEGIN of loop over 16-word blocks
+2:	# save old values of A, B, C, D
+	mov	%eax,		%r8d
+	mov	%ebx,		%r9d
+	mov	%ecx,		%r14d
+	mov	%edx,		%r15d
+EOF
+round1_step(-1,'%eax','%ebx','%ecx','%edx', '1','0xd76aa478', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xe8c7b756','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx', '3','0x242070db','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax', '4','0xc1bdceee','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx', '5','0xf57c0faf', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx', '6','0x4787c62a','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx', '7','0xa8304613','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax', '8','0xfd469501','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx', '9','0x698098d8', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8b44f7af','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx','11','0xffff5bb1','17');
+round1_step( 0,'%ebx','%ecx','%edx','%eax','12','0x895cd7be','22');
+round1_step( 0,'%eax','%ebx','%ecx','%edx','13','0x6b901122', '7');
+round1_step( 0,'%edx','%eax','%ebx','%ecx','14','0xfd987193','12');
+round1_step( 0,'%ecx','%edx','%eax','%ebx','15','0xa679438e','17');
+round1_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x49b40821','22');
+
+round2_step(-1,'%eax','%ebx','%ecx','%edx', '6','0xf61e2562', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx','11','0xc040b340', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '0','0x265e5a51','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax', '5','0xe9b6c7aa','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx','10','0xd62f105d', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx','15', '0x2441453', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '4','0xd8a1e681','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax', '9','0xe7d3fbc8','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx','14','0x21e1cde6', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xc33707d6', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx', '8','0xf4d50d87','14');
+round2_step( 0,'%ebx','%ecx','%edx','%eax','13','0x455a14ed','20');
+round2_step( 0,'%eax','%ebx','%ecx','%edx', '2','0xa9e3e905', '5');
+round2_step( 0,'%edx','%eax','%ebx','%ecx', '7','0xfcefa3f8', '9');
+round2_step( 0,'%ecx','%edx','%eax','%ebx','12','0x676f02d9','14');
+round2_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x8d2a4c8a','20');
+
+round3_step(-1,'%eax','%ebx','%ecx','%edx', '8','0xfffa3942', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx','11','0x8771f681','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx','14','0x6d9d6122','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax', '1','0xfde5380c','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx', '4','0xa4beea44', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx', '7','0x4bdecfa9','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx','10','0xf6bb4b60','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax','13','0xbebfbc70','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx', '0','0x289b7ec6', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xeaa127fa','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx', '6','0xd4ef3085','16');
+round3_step( 0,'%ebx','%ecx','%edx','%eax', '9', '0x4881d05','23');
+round3_step( 0,'%eax','%ebx','%ecx','%edx','12','0xd9d4d039', '4');
+round3_step( 0,'%edx','%eax','%ebx','%ecx','15','0xe6db99e5','11');
+round3_step( 0,'%ecx','%edx','%eax','%ebx', '2','0x1fa27cf8','16');
+round3_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xc4ac5665','23');
+
+round4_step(-1,'%eax','%ebx','%ecx','%edx', '7','0xf4292244', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx','14','0x432aff97','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '5','0xab9423a7','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax','12','0xfc93a039','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx', '3','0x655b59c3', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8f0ccc92','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '1','0xffeff47d','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax', '8','0x85845dd1','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx','15','0x6fa87e4f', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx', '6','0xfe2ce6e0','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx','13','0xa3014314','15');
+round4_step( 0,'%ebx','%ecx','%edx','%eax', '4','0x4e0811a1','21');
+round4_step( 0,'%eax','%ebx','%ecx','%edx','11','0xf7537e82', '6');
+round4_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xbd3af235','10');
+round4_step( 0,'%ecx','%edx','%eax','%ebx', '9','0x2ad7d2bb','15');
+round4_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xeb86d391','21');
+$code .= <<EOF;
+	# add old values of A, B, C, D
+	add	%r8d,	%eax
+	add	%r9d,	%ebx
+	add	%r14d,	%ecx
+	add	%r15d,	%edx
+
+	# loop control
+	add	\$64,		%rsi		# ptr += 64
+	cmp	%rdi,		%rsi		# cmp end with ptr
+	jb	2b				# jmp if ptr < end
+	# END of loop over 16-word blocks
+
+1:	pop	%rbp				# restore ctx
+	mov	%eax,		0*4(%rbp)	# ctx->A = A
+	mov	%ebx,		1*4(%rbp)	# ctx->B = B
+	mov	%ecx,		2*4(%rbp)	# ctx->C = C
+	mov	%edx,		3*4(%rbp)	# ctx->D = D
+
+	pop	%r15
+	pop	%r14
+	pop	%r13
+	pop	%r12
+	pop	%rbx
+	pop	%rbp
+	ret
+.L_md5_block_asm_host_order_end:
+.size md5_block_asm_host_order,.L_md5_block_asm_host_order_end-md5_block_asm_host_order
+EOF
+
+print $code;
-- 
cgit v1.2.3