From: Andy Polyakov <appro@openssl.org>
Date: Thu, 21 Oct 2010 15:56:55 +0000 (+0000)
Subject: Add aes-mips.pl assembler module.
X-Git-Tag: OpenSSL-fips-2_0-rc1~957
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=bb550038820e20b730659d28412d0e46bbd01490;p=oweals%2Fopenssl.git

Add aes-mips.pl assembler module.
---

diff --git a/crypto/aes/asm/aes-mips.pl b/crypto/aes/asm/aes-mips.pl
new file mode 100644
index 0000000000..8431f9fcfb
--- /dev/null
+++ b/crypto/aes/asm/aes-mips.pl
@@ -0,0 +1,1606 @@
+#!/usr/bin/env perl
+
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+
+# AES for MIPS
+
+# October 2010
+#
+# Code uses 1K[+256B] S-box and on single-issue core [such as R5000]
+# spends ~68 cycles per byte processed with 128-bit key. This is ~16%
+# faster than gcc-generated code, which is not very impressive. But
+# recall that compressed S-box requires extra processing, namely
+# additional rotations. Rotations are implemented with lwl/lwr pairs,
+# which is normally used for loading unaligned data. Another cool
+# thing about this module is its endian neutrality, which means that
+# it processes data without ever changing byte order...
+
+######################################################################
+# There is a number of MIPS ABI in use, O32 and N32/64 are most
+# widely used. Then there is a new contender: NUBI. It appears that if
+# one picks the latter, it's possible to arrange code in ABI neutral
+# manner. Therefore let's stick to NUBI register layout:
+#
+($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
+($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
+($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
+#
+# The return value is placed in $a0. Following coding rules facilitate
+# interoperability:
+#
+# - never ever touch $tp, "thread pointer", former $gp;
+# - copy return value to $t0, former $v0 [or to $a0 if you're adapting
+#   old code];
+# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
+#
+# For reference here is register layout for N32/64 MIPS ABIs:
+#
+# ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
+# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
+# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
+# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
+#
+$flavour = shift; # supported flavours are o32,n32,64,nubi32,nubi64
+
+if ($flavour =~ /64|n32/i) {
+	$PTR_ADD="dadd";	# incidentally works even on n32
+	$PTR_SUB="dsub";	# incidentally works even on n32
+	$REG_S="sd";
+	$REG_L="ld";
+	$PTR_SLL="dsll";	# incidentally works even on n32
+	$SZREG=8;
+} else {
+	$PTR_ADD="add";
+	$PTR_SUB="sub";
+	$REG_S="sw";
+	$REG_L="lw";
+	$PTR_SLL="sll";
+	$SZREG=4;
+}
+$pf = ($flavour =~ /nubi/i) ? $t0 : $t2;
+#
+# <appro@openssl.org>
+#
+######################################################################
+
+for (@ARGV) {	$big_endian=1 if (/\-DB_ENDIAN/);
+		$big_endian=0 if (/\-DL_ENDIAN/);
+		$output=$_ if (/^\w[\w\-]*\.\w+$/);	}
+open STDOUT,">$output";
+
+if (!defined($big_endian))
+{    $big_endian=(unpack('L',pack('N',1))==1);   }
+
+while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
+open STDOUT,">$output";
+
+my ($MSB,$LSB)=(0,3);	# automatically converted to little-endian
+
+$code.=<<___;
+.text
+
+.option	pic2
+.set	noat
+___
+
+{{{
+my $FRAMESIZE=16*$SZREG;
+my $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? 0xc0fff008 : 0xc0ff0000;
+
+my ($inp,$out,$key,$Tbl,$s0,$s1,$s2,$s3)=($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7);
+my ($i0,$i1,$i2,$i3)=($at,$t0,$t1,$t2);
+my ($t0,$t1,$t2,$t3,$t4,$t5,$t6,$t7,$t8,$t9,$t10,$t11) = map("\$$_",(12..23));
+my ($key0,$cnt)=($gp,$fp);
+
+# instuction ordering is "stolen" from output from MIPSpro assembler
+# invoked with -mips3 -O3 arguments...
+$code.=<<___;
+.align	5
+.ent	_mips_AES_encrypt
+_mips_AES_encrypt:
+	.frame	$sp,0,$ra
+	.set	reorder
+	lw	$t0,0($key)
+	lw	$t1,4($key)
+	lw	$t2,8($key)
+	lw	$t3,12($key)
+	lw	$cnt,240($key)
+	$PTR_ADD $key0,$key,16
+
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+
+	sub	$cnt,1
+	_xtr	$i0,$s1,16-2
+.Loop_enc:
+	_xtr	$i1,$s2,16-2
+	_xtr	$i2,$s3,16-2
+	_xtr	$i3,$s0,16-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t0,3($i0)		# Te1[s1>>16]
+	lwl	$t1,3($i1)		# Te1[s2>>16]
+	lwl	$t2,3($i2)		# Te1[s3>>16]
+	lwl	$t3,3($i3)		# Te1[s0>>16]
+	lwr	$t0,2($i0)		# Te1[s1>>16]
+	lwr	$t1,2($i1)		# Te1[s2>>16]
+	lwr	$t2,2($i2)		# Te1[s3>>16]
+	lwr	$t3,2($i3)		# Te1[s0>>16]
+
+	_xtr	$i0,$s2,8-2
+	_xtr	$i1,$s3,8-2
+	_xtr	$i2,$s0,8-2
+	_xtr	$i3,$s1,8-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t4,2($i0)		# Te2[s2>>8]
+	lwl	$t5,2($i1)		# Te2[s3>>8]
+	lwl	$t6,2($i2)		# Te2[s0>>8]
+	lwl	$t7,2($i3)		# Te2[s1>>8]
+	lwr	$t4,1($i0)		# Te2[s2>>8]
+	lwr	$t5,1($i1)		# Te2[s3>>8]
+	lwr	$t6,1($i2)		# Te2[s0>>8]
+	lwr	$t7,1($i3)		# Te2[s1>>8]
+
+	_xtr	$i0,$s3,0-2
+	_xtr	$i1,$s0,0-2
+	_xtr	$i2,$s1,0-2
+	_xtr	$i3,$s2,0-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t8,1($i0)		# Te3[s3]
+	lwl	$t9,1($i1)		# Te3[s0]
+	lwl	$t10,1($i2)		# Te3[s1]
+	lwl	$t11,1($i3)		# Te3[s2]
+	lwr	$t8,0($i0)		# Te3[s3]
+	lwr	$t9,0($i1)		# Te3[s0]
+	lwr	$t10,0($i2)		# Te3[s1]
+	lwr	$t11,0($i3)		# Te3[s2]
+
+	_xtr	$i0,$s0,24-2
+	_xtr	$i1,$s1,24-2
+	_xtr	$i2,$s2,24-2
+	_xtr	$i3,$s3,24-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+	lw	$t4,0($i0)		# Te0[s0>>24]
+	lw	$t5,0($i1)		# Te0[s1>>24]
+	lw	$t6,0($i2)		# Te0[s2>>24]
+	lw	$t7,0($i3)		# Te0[s3>>24]
+
+	lw	$s0,0($key0)
+	lw	$s1,4($key0)
+	lw	$s2,8($key0)
+	lw	$s3,12($key0)
+
+	xor	$t0,$t8
+	xor	$t1,$t9
+	xor	$t2,$t10
+	xor	$t3,$t11
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	sub	$cnt,1
+	$PTR_ADD $key0,16
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+	.set	noreorder
+	bnez	$cnt,.Loop_enc
+	_xtr	$i0,$s1,16-2
+
+	.set	reorder
+	_xtr	$i1,$s2,16-2
+	_xtr	$i2,$s3,16-2
+	_xtr	$i3,$s0,16-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t0,2($i0)		# Te4[s1>>16]
+	lbu	$t1,2($i1)		# Te4[s2>>16]
+	lbu	$t2,2($i2)		# Te4[s3>>16]
+	lbu	$t3,2($i3)		# Te4[s0>>16]
+
+	_xtr	$i0,$s2,8-2
+	_xtr	$i1,$s3,8-2
+	_xtr	$i2,$s0,8-2
+	_xtr	$i3,$s1,8-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t4,2($i0)		# Te4[s2>>8]
+	lbu	$t5,2($i1)		# Te4[s3>>8]
+	lbu	$t6,2($i2)		# Te4[s0>>8]
+	lbu	$t7,2($i3)		# Te4[s1>>8]
+
+	_xtr	$i0,$s0,24-2
+	_xtr	$i1,$s1,24-2
+	_xtr	$i2,$s2,24-2
+	_xtr	$i3,$s3,24-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t8,2($i0)		# Te4[s0>>24]
+	lbu	$t9,2($i1)		# Te4[s1>>24]
+	lbu	$t10,2($i2)		# Te4[s2>>24]
+	lbu	$t11,2($i3)		# Te4[s3>>24]
+
+	_xtr	$i0,$s3,0-2
+	_xtr	$i1,$s0,0-2
+	_xtr	$i2,$s1,0-2
+	_xtr	$i3,$s2,0-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+
+	_ins	$t0,16
+	_ins	$t1,16
+	_ins	$t2,16
+	_ins	$t3,16
+
+	_ins	$t4,8
+	_ins	$t5,8
+	_ins	$t6,8
+	_ins	$t7,8
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t4,2($i0)		# Te4[s3]
+	lbu	$t5,2($i1)		# Te4[s0]
+	lbu	$t6,2($i2)		# Te4[s1]
+	lbu	$t7,2($i3)		# Te4[s2]
+
+	_ins	$t8,24
+	_ins	$t9,24
+	_ins	$t10,24
+	_ins	$t11,24
+
+	lw	$s0,0($key0)
+	lw	$s1,4($key0)
+	lw	$s2,8($key0)
+	lw	$s3,12($key0)
+
+	xor	$t0,$t8
+	xor	$t1,$t9
+	xor	$t2,$t10
+	xor	$t3,$t11
+
+	_ins	$t4,0
+	_ins	$t5,0
+	_ins	$t6,0
+	_ins	$t7,0
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+
+	jr	$ra
+.end	_mips_AES_encrypt
+
+.align	5
+.globl	AES_encrypt
+.ent	AES_encrypt
+AES_encrypt:
+	.frame	$sp,$FRAMESIZE,$ra
+	.mask	$SAVED_REGS_MASK,-$SZREG
+	.set	noreorder
+___
+$code.=<<___ if ($flavour =~ /o32/i);	# o32 PIC-ification
+	.cpload	$pf
+___
+$code.=<<___;
+	$PTR_SUB $sp,$FRAMESIZE
+	$REG_S	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_S	$fp,$FRAMESIZE-2*$SZREG($sp)
+	$REG_S	$s11,$FRAMESIZE-3*$SZREG($sp)
+	$REG_S	$s10,$FRAMESIZE-4*$SZREG($sp)
+	$REG_S	$s9,$FRAMESIZE-5*$SZREG($sp)
+	$REG_S	$s8,$FRAMESIZE-6*$SZREG($sp)
+	$REG_S	$s7,$FRAMESIZE-7*$SZREG($sp)
+	$REG_S	$s6,$FRAMESIZE-8*$SZREG($sp)
+	$REG_S	$s5,$FRAMESIZE-9*$SZREG($sp)
+	$REG_S	$s4,$FRAMESIZE-10*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);	# optimize non-nubi prologue
+	$REG_S	\$15,$FRAMESIZE-11*$SZREG($sp)
+	$REG_S	\$14,$FRAMESIZE-12*$SZREG($sp)
+	$REG_S	\$13,$FRAMESIZE-13*$SZREG($sp)
+	$REG_S	\$12,$FRAMESIZE-14*$SZREG($sp)
+	$REG_S	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___ if ($flavour !~ /o32/i);	# non-o32 PIC-ification
+	.cplocal	$Tbl
+	.cpsetup	$pf,$zero,AES_encrypt
+___
+$code.=<<___;
+	.set	reorder
+	la	$Tbl,AES_Te		# PIC-ified 'load address'
+
+	lwl	$s0,0+$MSB($inp)
+	lwl	$s1,4+$MSB($inp)
+	lwl	$s2,8+$MSB($inp)
+	lwl	$s3,12+$MSB($inp)
+	lwr	$s0,0+$LSB($inp)
+	lwr	$s1,4+$LSB($inp)
+	lwr	$s2,8+$LSB($inp)
+	lwr	$s3,12+$LSB($inp)
+
+	bal	_mips_AES_encrypt
+
+	swr	$s0,0+$LSB($out)
+	swr	$s1,4+$LSB($out)
+	swr	$s2,8+$LSB($out)
+	swr	$s3,12+$LSB($out)
+	swl	$s0,0+$MSB($out)
+	swl	$s1,4+$MSB($out)
+	swl	$s2,8+$MSB($out)
+	swl	$s3,12+$MSB($out)
+
+	.set	noreorder
+	$REG_L	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_L	$fp,$FRAMESIZE-2*$SZREG($sp)
+	$REG_L	$s11,$FRAMESIZE-3*$SZREG($sp)
+	$REG_L	$s10,$FRAMESIZE-4*$SZREG($sp)
+	$REG_L	$s9,$FRAMESIZE-5*$SZREG($sp)
+	$REG_L	$s8,$FRAMESIZE-6*$SZREG($sp)
+	$REG_L	$s7,$FRAMESIZE-7*$SZREG($sp)
+	$REG_L	$s6,$FRAMESIZE-8*$SZREG($sp)
+	$REG_L	$s5,$FRAMESIZE-9*$SZREG($sp)
+	$REG_L	$s4,$FRAMESIZE-10*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+	$REG_L	\$15,$FRAMESIZE-11*$SZREG($sp)
+	$REG_L	\$14,$FRAMESIZE-12*$SZREG($sp)
+	$REG_L	\$13,$FRAMESIZE-13*$SZREG($sp)
+	$REG_L	\$12,$FRAMESIZE-14*$SZREG($sp)
+	$REG_L	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___;
+	jr	$ra
+	$PTR_ADD $sp,$FRAMESIZE
+.end	AES_encrypt
+___
+
+$code.=<<___;
+.align	5
+.ent	_mips_AES_decrypt
+_mips_AES_decrypt:
+	.frame	$sp,0,$ra
+	.set	reorder
+	lw	$t0,0($key)
+	lw	$t1,4($key)
+	lw	$t2,8($key)
+	lw	$t3,12($key)
+	lw	$cnt,240($key)
+	$PTR_ADD $key0,$key,16
+
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+
+	sub	$cnt,1
+	_xtr	$i0,$s3,16-2
+.Loop_dec:
+	_xtr	$i1,$s0,16-2
+	_xtr	$i2,$s1,16-2
+	_xtr	$i3,$s2,16-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t0,3($i0)		# Td1[s3>>16]
+	lwl	$t1,3($i1)		# Td1[s0>>16]
+	lwl	$t2,3($i2)		# Td1[s1>>16]
+	lwl	$t3,3($i3)		# Td1[s2>>16]
+	lwr	$t0,2($i0)		# Td1[s3>>16]
+	lwr	$t1,2($i1)		# Td1[s0>>16]
+	lwr	$t2,2($i2)		# Td1[s1>>16]
+	lwr	$t3,2($i3)		# Td1[s2>>16]
+
+	_xtr	$i0,$s2,8-2
+	_xtr	$i1,$s3,8-2
+	_xtr	$i2,$s0,8-2
+	_xtr	$i3,$s1,8-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t4,2($i0)		# Td2[s2>>8]
+	lwl	$t5,2($i1)		# Td2[s3>>8]
+	lwl	$t6,2($i2)		# Td2[s0>>8]
+	lwl	$t7,2($i3)		# Td2[s1>>8]
+	lwr	$t4,1($i0)		# Td2[s2>>8]
+	lwr	$t5,1($i1)		# Td2[s3>>8]
+	lwr	$t6,1($i2)		# Td2[s0>>8]
+	lwr	$t7,1($i3)		# Td2[s1>>8]
+
+	_xtr	$i0,$s1,0-2
+	_xtr	$i1,$s2,0-2
+	_xtr	$i2,$s3,0-2
+	_xtr	$i3,$s0,0-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lwl	$t8,1($i0)		# Td3[s1]
+	lwl	$t9,1($i1)		# Td3[s2]
+	lwl	$t10,1($i2)		# Td3[s3]
+	lwl	$t11,1($i3)		# Td3[s0]
+	lwr	$t8,0($i0)		# Td3[s1]
+	lwr	$t9,0($i1)		# Td3[s2]
+	lwr	$t10,0($i2)		# Td3[s3]
+	lwr	$t11,0($i3)		# Td3[s0]
+
+	_xtr	$i0,$s0,24-2
+	_xtr	$i1,$s1,24-2
+	_xtr	$i2,$s2,24-2
+	_xtr	$i3,$s3,24-2
+	and	$i0,0x3fc
+	and	$i1,0x3fc
+	and	$i2,0x3fc
+	and	$i3,0x3fc
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+
+	lw	$t4,0($i0)		# Td0[s0>>24]
+	lw	$t5,0($i1)		# Td0[s1>>24]
+	lw	$t6,0($i2)		# Td0[s2>>24]
+	lw	$t7,0($i3)		# Td0[s3>>24]
+
+	lw	$s0,0($key0)
+	lw	$s1,4($key0)
+	lw	$s2,8($key0)
+	lw	$s3,12($key0)
+
+	xor	$t0,$t8
+	xor	$t1,$t9
+	xor	$t2,$t10
+	xor	$t3,$t11
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	sub	$cnt,1
+	$PTR_ADD $key0,16
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+	.set	noreorder
+	bnez	$cnt,.Loop_dec
+	_xtr	$i0,$s3,16-2
+
+	.set	reorder
+	lw	$t4,1024($Tbl)		# prefetch Td4
+	lw	$t5,1024+32($Tbl)
+	lw	$t6,1024+64($Tbl)
+	lw	$t7,1024+96($Tbl)
+	lw	$t8,1024+128($Tbl)
+	lw	$t9,1024+160($Tbl)
+	lw	$t10,1024+192($Tbl)
+	lw	$t11,1024+224($Tbl)
+
+	_xtr	$i0,$s3,16
+	_xtr	$i1,$s0,16
+	_xtr	$i2,$s1,16
+	_xtr	$i3,$s2,16
+	and	$i0,0xff
+	and	$i1,0xff
+	and	$i2,0xff
+	and	$i3,0xff
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t0,1024($i0)		# Td4[s3>>16]
+	lbu	$t1,1024($i1)		# Td4[s0>>16]
+	lbu	$t2,1024($i2)		# Td4[s1>>16]
+	lbu	$t3,1024($i3)		# Td4[s2>>16]
+
+	_xtr	$i0,$s2,8
+	_xtr	$i1,$s3,8
+	_xtr	$i2,$s0,8
+	_xtr	$i3,$s1,8
+	and	$i0,0xff
+	and	$i1,0xff
+	and	$i2,0xff
+	and	$i3,0xff
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t4,1024($i0)		# Td4[s2>>8]
+	lbu	$t5,1024($i1)		# Td4[s3>>8]
+	lbu	$t6,1024($i2)		# Td4[s0>>8]
+	lbu	$t7,1024($i3)		# Td4[s1>>8]
+
+	_xtr	$i0,$s0,24
+	_xtr	$i1,$s1,24
+	_xtr	$i2,$s2,24
+	_xtr	$i3,$s3,24
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t8,1024($i0)		# Td4[s0>>24]
+	lbu	$t9,1024($i1)		# Td4[s1>>24]
+	lbu	$t10,1024($i2)		# Td4[s2>>24]
+	lbu	$t11,1024($i3)		# Td4[s3>>24]
+
+	_xtr	$i0,$s1,0
+	_xtr	$i1,$s2,0
+	_xtr	$i2,$s3,0
+	_xtr	$i3,$s0,0
+
+	_ins	$t0,16
+	_ins	$t1,16
+	_ins	$t2,16
+	_ins	$t3,16
+
+	_ins	$t4,8
+	_ins	$t5,8
+	_ins	$t6,8
+	_ins	$t7,8
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$t4,1024($i0)		# Td4[s1]
+	lbu	$t5,1024($i1)		# Td4[s2]
+	lbu	$t6,1024($i2)		# Td4[s3]
+	lbu	$t7,1024($i3)		# Td4[s0]
+
+	_ins	$t8,24
+	_ins	$t9,24
+	_ins	$t10,24
+	_ins	$t11,24
+
+	lw	$s0,0($key0)
+	lw	$s1,4($key0)
+	lw	$s2,8($key0)
+	lw	$s3,12($key0)
+
+	_ins	$t4,0
+	_ins	$t5,0
+	_ins	$t6,0
+	_ins	$t7,0
+
+
+	xor	$t0,$t8
+	xor	$t1,$t9
+	xor	$t2,$t10
+	xor	$t3,$t11
+
+	xor	$t0,$t4
+	xor	$t1,$t5
+	xor	$t2,$t6
+	xor	$t3,$t7
+
+	xor	$s0,$t0
+	xor	$s1,$t1
+	xor	$s2,$t2
+	xor	$s3,$t3
+
+	jr	$ra
+.end	_mips_AES_decrypt
+
+.align	5
+.globl	AES_decrypt
+.ent	AES_decrypt
+AES_decrypt:
+	.frame	$sp,$FRAMESIZE,$ra
+	.mask	$SAVED_REGS_MASK,-$SZREG
+	.set	noreorder
+___
+$code.=<<___ if ($flavour =~ /o32/i);	# o32 PIC-ification
+	.cpload	$pf
+___
+$code.=<<___;
+	$PTR_SUB $sp,$FRAMESIZE
+	$REG_S	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_S	$fp,$FRAMESIZE-2*$SZREG($sp)
+	$REG_S	$s11,$FRAMESIZE-3*$SZREG($sp)
+	$REG_S	$s10,$FRAMESIZE-4*$SZREG($sp)
+	$REG_S	$s9,$FRAMESIZE-5*$SZREG($sp)
+	$REG_S	$s8,$FRAMESIZE-6*$SZREG($sp)
+	$REG_S	$s7,$FRAMESIZE-7*$SZREG($sp)
+	$REG_S	$s6,$FRAMESIZE-8*$SZREG($sp)
+	$REG_S	$s5,$FRAMESIZE-9*$SZREG($sp)
+	$REG_S	$s4,$FRAMESIZE-10*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);	# optimize non-nubi prologue
+	$REG_S	\$15,$FRAMESIZE-11*$SZREG($sp)
+	$REG_S	\$14,$FRAMESIZE-12*$SZREG($sp)
+	$REG_S	\$13,$FRAMESIZE-13*$SZREG($sp)
+	$REG_S	\$12,$FRAMESIZE-14*$SZREG($sp)
+	$REG_S	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___ if ($flavour !~ /o32/i);	# non-o32 PIC-ification
+	.cplocal	$Tbl
+	.cpsetup	$pf,$zero,AES_decrypt
+___
+$code.=<<___;
+	.set	reorder
+	la	$Tbl,AES_Td		# PIC-ified 'load address'
+
+	lwl	$s0,0+$MSB($inp)
+	lwl	$s1,4+$MSB($inp)
+	lwl	$s2,8+$MSB($inp)
+	lwl	$s3,12+$MSB($inp)
+	lwr	$s0,0+$LSB($inp)
+	lwr	$s1,4+$LSB($inp)
+	lwr	$s2,8+$LSB($inp)
+	lwr	$s3,12+$LSB($inp)
+
+	bal	_mips_AES_decrypt
+
+	swr	$s0,0+$LSB($out)
+	swr	$s1,4+$LSB($out)
+	swr	$s2,8+$LSB($out)
+	swr	$s3,12+$LSB($out)
+	swl	$s0,0+$MSB($out)
+	swl	$s1,4+$MSB($out)
+	swl	$s2,8+$MSB($out)
+	swl	$s3,12+$MSB($out)
+
+	.set	noreorder
+	$REG_L	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_L	$fp,$FRAMESIZE-2*$SZREG($sp)
+	$REG_L	$s11,$FRAMESIZE-3*$SZREG($sp)
+	$REG_L	$s10,$FRAMESIZE-4*$SZREG($sp)
+	$REG_L	$s9,$FRAMESIZE-5*$SZREG($sp)
+	$REG_L	$s8,$FRAMESIZE-6*$SZREG($sp)
+	$REG_L	$s7,$FRAMESIZE-7*$SZREG($sp)
+	$REG_L	$s6,$FRAMESIZE-8*$SZREG($sp)
+	$REG_L	$s5,$FRAMESIZE-9*$SZREG($sp)
+	$REG_L	$s4,$FRAMESIZE-10*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+	$REG_L	\$15,$FRAMESIZE-11*$SZREG($sp)
+	$REG_L	\$14,$FRAMESIZE-12*$SZREG($sp)
+	$REG_L	\$13,$FRAMESIZE-13*$SZREG($sp)
+	$REG_L	\$12,$FRAMESIZE-14*$SZREG($sp)
+	$REG_L	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___;
+	jr	$ra
+	$PTR_ADD $sp,$FRAMESIZE
+.end	AES_decrypt
+___
+}}}
+
+{{{
+my $FRAMESIZE=8*$SZREG;
+my $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? 0xc000f008 : 0xc0000000;
+
+my ($inp,$bits,$key,$Tbl)=($a0,$a1,$a2,$a3);
+my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7)=($a4,$a5,$a6,$a7,$s0,$s1,$s2,$s3);
+my ($i0,$i1,$i2,$i3)=($at,$t0,$t1,$t2);
+my ($rcon,$cnt)=($gp,$fp);
+
+$code.=<<___;
+.align	5
+.ent	_mips_AES_set_encrypt_key
+_mips_AES_set_encrypt_key:
+	.frame	$sp,0,$ra
+	.set	noreorder
+	beqz	$inp,.Lekey_done
+	li	$t0,-1
+	beqz	$key,.Lekey_done
+	$PTR_ADD $rcon,$Tbl,1024+256
+
+	.set	reorder
+	lwl	$rk0,0+$MSB($inp)	# load 128 bits
+	lwl	$rk1,4+$MSB($inp)
+	lwl	$rk2,8+$MSB($inp)
+	lwl	$rk3,12+$MSB($inp)
+	li	$at,128
+	lwr	$rk0,0+$LSB($inp)
+	lwr	$rk1,4+$LSB($inp)
+	lwr	$rk2,8+$LSB($inp)
+	lwr	$rk3,12+$LSB($inp)
+	.set	noreorder
+	beq	$bits,$at,.L128bits
+	li	$cnt,10
+
+	.set	reorder
+	lwl	$rk4,16+$MSB($inp)	# load 192 bits
+	lwl	$rk5,20+$MSB($inp)
+	li	$at,192
+	lwr	$rk4,16+$LSB($inp)
+	lwr	$rk5,20+$LSB($inp)
+	.set	noreorder
+	beq	$bits,$at,.L192bits
+	li	$cnt,8
+
+	.set	reorder
+	lwl	$rk6,24+$MSB($inp)	# load 256 bits
+	lwl	$rk7,28+$MSB($inp)
+	li	$at,256
+	lwr	$rk6,24+$LSB($inp)
+	lwr	$rk7,28+$LSB($inp)
+	.set	noreorder
+	beq	$bits,$at,.L256bits
+	li	$cnt,7
+
+	b	.Lekey_done
+	li	$t0,-2
+
+.align	4
+.L128bits:
+	.set	reorder
+	srl	$i0,$rk3,16
+	srl	$i1,$rk3,8
+	and	$i0,0xff
+	and	$i1,0xff
+	and	$i2,$rk3,0xff
+	srl	$i3,$rk3,24
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$i0,1024($i0)
+	lbu	$i1,1024($i1)
+	lbu	$i2,1024($i2)
+	lbu	$i3,1024($i3)
+
+	sw	$rk0,0($key)
+	sw	$rk1,4($key)
+	sw	$rk2,8($key)
+	sw	$rk3,12($key)
+	sub	$cnt,1
+	$PTR_ADD $key,16
+
+	_bias	$i0,24
+	_bias	$i1,16
+	_bias	$i2,8
+	_bias	$i3,0
+
+	xor	$rk0,$i0
+	lw	$i0,0($rcon)
+	xor	$rk0,$i1
+	xor	$rk0,$i2
+	xor	$rk0,$i3
+	xor	$rk0,$i0
+
+	xor	$rk1,$rk0
+	xor	$rk2,$rk1
+	xor	$rk3,$rk2
+
+	.set	noreorder
+	bnez	$cnt,.L128bits
+	$PTR_ADD $rcon,4
+
+	sw	$rk0,0($key)
+	sw	$rk1,4($key)
+	sw	$rk2,8($key)
+	li	$cnt,10
+	sw	$rk3,12($key)
+	li	$t0,0
+	sw	$cnt,80($key)
+	b	.Lekey_done
+	$PTR_SUB $key,10*16
+
+.align	4
+.L192bits:
+	.set	reorder
+	srl	$i0,$rk5,16
+	srl	$i1,$rk5,8
+	and	$i0,0xff
+	and	$i1,0xff
+	and	$i2,$rk5,0xff
+	srl	$i3,$rk5,24
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$i0,1024($i0)
+	lbu	$i1,1024($i1)
+	lbu	$i2,1024($i2)
+	lbu	$i3,1024($i3)
+
+	sw	$rk0,0($key)
+	sw	$rk1,4($key)
+	sw	$rk2,8($key)
+	sw	$rk3,12($key)
+	sw	$rk4,16($key)
+	sw	$rk5,20($key)
+	sub	$cnt,1
+	$PTR_ADD $key,24
+
+	_bias	$i0,24
+	_bias	$i1,16
+	_bias	$i2,8
+	_bias	$i3,0
+
+	xor	$rk0,$i0
+	lw	$i0,0($rcon)
+	xor	$rk0,$i1
+	xor	$rk0,$i2
+	xor	$rk0,$i3
+	xor	$rk0,$i0
+
+	xor	$rk1,$rk0
+	xor	$rk2,$rk1
+	xor	$rk3,$rk2
+	xor	$rk4,$rk3
+	xor	$rk5,$rk4
+
+	.set	noreorder
+	bnez	$cnt,.L192bits
+	$PTR_ADD $rcon,4
+
+	sw	$rk0,0($key)
+	sw	$rk1,4($key)
+	sw	$rk2,8($key)
+	li	$cnt,12
+	sw	$rk3,12($key)
+	li	$t0,0
+	sw	$cnt,48($key)
+	b	.Lekey_done
+	$PTR_SUB $key,12*16
+
+.align	4
+.L256bits:
+	.set	reorder
+	srl	$i0,$rk7,16
+	srl	$i1,$rk7,8
+	and	$i0,0xff
+	and	$i1,0xff
+	and	$i2,$rk7,0xff
+	srl	$i3,$rk7,24
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$i0,1024($i0)
+	lbu	$i1,1024($i1)
+	lbu	$i2,1024($i2)
+	lbu	$i3,1024($i3)
+
+	sw	$rk0,0($key)
+	sw	$rk1,4($key)
+	sw	$rk2,8($key)
+	sw	$rk3,12($key)
+	sw	$rk4,16($key)
+	sw	$rk5,20($key)
+	sw	$rk6,24($key)
+	sw	$rk7,28($key)
+	sub	$cnt,1
+
+	_bias	$i0,24
+	_bias	$i1,16
+	_bias	$i2,8
+	_bias	$i3,0
+
+	xor	$rk0,$i0
+	lw	$i0,0($rcon)
+	xor	$rk0,$i1
+	xor	$rk0,$i2
+	xor	$rk0,$i3
+	xor	$rk0,$i0
+
+	xor	$rk1,$rk0
+	xor	$rk2,$rk1
+	xor	$rk3,$rk2
+	beqz	$cnt,.L256bits_done
+
+	srl	$i0,$rk3,24
+	srl	$i1,$rk3,16
+	srl	$i2,$rk3,8
+	and	$i3,$rk3,0xff
+	and	$i1,0xff
+	and	$i2,0xff
+	$PTR_ADD $i0,$Tbl
+	$PTR_ADD $i1,$Tbl
+	$PTR_ADD $i2,$Tbl
+	$PTR_ADD $i3,$Tbl
+	lbu	$i0,1024($i0)
+	lbu	$i1,1024($i1)
+	lbu	$i2,1024($i2)
+	lbu	$i3,1024($i3)
+	sll	$i0,24
+	sll	$i1,16
+	sll	$i2,8
+
+	xor	$rk4,$i0
+	xor	$rk4,$i1
+	xor	$rk4,$i2
+	xor	$rk4,$i3
+
+	xor	$rk5,$rk4
+	xor	$rk6,$rk5
+	xor	$rk7,$rk6
+
+	$PTR_ADD $key,32
+	.set	noreorder
+	b	.L256bits
+	$PTR_ADD $rcon,4
+
+.L256bits_done:
+	sw	$rk0,32($key)
+	sw	$rk1,36($key)
+	sw	$rk2,40($key)
+	li	$cnt,14
+	sw	$rk3,44($key)
+	li	$t0,0
+	sw	$cnt,48($key)
+	$PTR_SUB $key,12*16
+
+.Lekey_done:
+	jr	$ra
+	nop
+.end	_mips_AES_set_encrypt_key
+
+.globl	AES_set_encrypt_key
+.ent	AES_set_encrypt_key
+AES_set_encrypt_key:
+	.frame	$sp,$FRAMESIZE,$ra
+	.mask	$SAVED_REGS_MASK,-$SZREG
+	.set	noreorder
+___
+$code.=<<___ if ($flavour =~ /o32/i);	# o32 PIC-ification
+	.cpload	$pf
+___
+$code.=<<___;
+	$PTR_SUB $sp,$FRAMESIZE
+	$REG_S	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_S	$fp,$FRAMESIZE-2*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);	# optimize non-nubi prologue
+	$REG_S	$s3,$FRAMESIZE-3*$SZREG($sp)
+	$REG_S	$s2,$FRAMESIZE-4*$SZREG($sp)
+	$REG_S	$s1,$FRAMESIZE-5*$SZREG($sp)
+	$REG_S	$s0,$FRAMESIZE-6*$SZREG($sp)
+	$REG_S	$gp,$FRAMESIZE-7*$SZREG($sp)
+___
+$code.=<<___ if ($flavour !~ /o32/i);	# non-o32 PIC-ification
+	.cplocal	$Tbl
+	.cpsetup	$pf,$zero,AES_set_encrypt_key
+___
+$code.=<<___;
+	.set	reorder
+	la	$Tbl,AES_Te		# PIC-ified 'load address'
+
+	bal	_mips_AES_set_encrypt_key
+
+	.set	noreorder
+	move	$a0,$t0
+	$REG_L	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_L	$fp,$FRAMESIZE-2*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+	$REG_L	$s3,$FRAMESIZE-11*$SZREG($sp)
+	$REG_L	$s2,$FRAMESIZE-12*$SZREG($sp)
+	$REG_L	$s1,$FRAMESIZE-13*$SZREG($sp)
+	$REG_L	$s0,$FRAMESIZE-14*$SZREG($sp)
+	$REG_L	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___;
+	jr	$ra
+	$PTR_ADD $sp,$FRAMESIZE
+.end	AES_set_encrypt_key
+___
+
+my ($head,$tail)=($inp,$bits);
+my ($tp1,$tp2,$tp4,$tp8,$tp9,$tpb,$tpd,$tpe)=($a4,$a5,$a6,$a7,$s0,$s1,$s2,$s3);
+my ($m,$x80808080,$x7f7f7f7f,$x1b1b1b1b)=($at,$t0,$t1,$t2);
+$code.=<<___;
+.align	5
+.globl	AES_set_decrypt_key
+.ent	AES_set_decrypt_key
+AES_set_decrypt_key:
+	.frame	$sp,$FRAMESIZE,$ra
+	.mask	$SAVED_REGS_MASK,-$SZREG
+	.set	noreorder
+___
+$code.=<<___ if ($flavour =~ /o32/i);	# o32 PIC-ification
+	.cpload	$pf
+___
+$code.=<<___;
+	$PTR_SUB $sp,$FRAMESIZE
+	$REG_S	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_S	$fp,$FRAMESIZE-2*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);	# optimize non-nubi prologue
+	$REG_S	$s3,$FRAMESIZE-3*$SZREG($sp)
+	$REG_S	$s2,$FRAMESIZE-4*$SZREG($sp)
+	$REG_S	$s1,$FRAMESIZE-5*$SZREG($sp)
+	$REG_S	$s0,$FRAMESIZE-6*$SZREG($sp)
+	$REG_S	$gp,$FRAMESIZE-7*$SZREG($sp)
+___
+$code.=<<___ if ($flavour !~ /o32/i);	# non-o32 PIC-ification
+	.cplocal	$Tbl
+	.cpsetup	$pf,$zero,AES_set_decrypt_key
+___
+$code.=<<___;
+	.set	reorder
+	la	$Tbl,AES_Te		# PIC-ified 'load address'
+
+	bal	_mips_AES_set_encrypt_key
+
+	bltz	$t0,.Ldkey_done
+
+	sll	$at,$cnt,4
+	$PTR_ADD $head,$key,0
+	$PTR_ADD $tail,$key,$at
+.align	4
+.Lswap:
+	lw	$rk0,0($head)
+	lw	$rk1,4($head)
+	lw	$rk2,8($head)
+	lw	$rk3,12($head)
+	lw	$rk4,0($tail)
+	lw	$rk5,4($tail)
+	lw	$rk6,8($tail)
+	lw	$rk7,12($tail)
+	sw	$rk0,0($tail)
+	sw	$rk1,4($tail)
+	sw	$rk2,8($tail)
+	sw	$rk3,12($tail)
+	$PTR_ADD $head,16
+	$PTR_SUB $tail,16
+	sw	$rk4,-16($head)
+	sw	$rk5,-12($head)
+	sw	$rk6,-8($head)
+	sw	$rk7,-4($head)
+	bne	$head,$tail,.Lswap
+
+	lw	$tp1,16($key)		# modulo-scheduled
+	lui	$x80808080,0x8080
+	sub	$cnt,1
+	or	$x80808080,0x8080
+	sll	$cnt,2
+	$PTR_ADD $key,16
+	lui	$x1b1b1b1b,0x1b1b
+	nor	$x7f7f7f7f,$zero,$x80808080
+	or	$x1b1b1b1b,0x1b1b
+.align	4
+.Lmix:
+	and	$m,$tp1,$x80808080
+	and	$tp2,$tp1,$x7f7f7f7f
+	srl	$tp4,$m,7
+	addu	$tp2,$tp2		# tp2<<1
+	subu	$m,$tp4
+	and	$m,$x1b1b1b1b
+	xor	$tp2,$m
+
+	and	$m,$tp2,$x80808080
+	and	$tp4,$tp2,$x7f7f7f7f
+	srl	$tp8,$m,7
+	addu	$tp4,$tp4		# tp4<<1
+	subu	$m,$tp8
+	and	$m,$x1b1b1b1b
+	xor	$tp4,$m
+
+	and	$m,$tp4,$x80808080
+	and	$tp8,$tp4,$x7f7f7f7f
+	srl	$tp9,$m,7
+	addu	$tp8,$tp8		# tp8<<1
+	subu	$m,$tp9
+	and	$m,$x1b1b1b1b
+	xor	$tp8,$m
+
+	xor	$tp9,$tp8,$tp1
+	xor	$tpe,$tp8,$tp4
+	xor	$tpb,$tp9,$tp2
+	xor	$tpd,$tp9,$tp4
+
+	_ror	$tp1,$tpd,16
+	 xor	$tpe,$tp2
+	_ror	$tp2,$tpd,-16
+	xor	$tpe,$tp1
+	_ror	$tp1,$tp9,8
+	xor	$tpe,$tp2
+	_ror	$tp2,$tp9,-24
+	xor	$tpe,$tp1
+	_ror	$tp1,$tpb,24
+	xor	$tpe,$tp2
+	_ror	$tp2,$tpb,-8
+	xor	$tpe,$tp1
+	lw	$tp1,4($key)		# modulo-scheduled
+	xor	$tpe,$tp2
+	sub	$cnt,1
+	sw	$tpe,0($key)
+	$PTR_ADD $key,4
+	bnez	$cnt,.Lmix
+
+	li	$t0,0
+.Ldkey_done:
+	.set	noreorder
+	move	$a0,$t0
+	$REG_L	$ra,$FRAMESIZE-1*$SZREG($sp)
+	$REG_L	$fp,$FRAMESIZE-2*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+	$REG_L	$s3,$FRAMESIZE-11*$SZREG($sp)
+	$REG_L	$s2,$FRAMESIZE-12*$SZREG($sp)
+	$REG_L	$s1,$FRAMESIZE-13*$SZREG($sp)
+	$REG_L	$s0,$FRAMESIZE-14*$SZREG($sp)
+	$REG_L	$gp,$FRAMESIZE-15*$SZREG($sp)
+___
+$code.=<<___;
+	jr	$ra
+	$PTR_ADD $sp,$FRAMESIZE
+.end	AES_set_decrypt_key
+___
+}}}
+
+######################################################################
+# Tables are kept in endian-neutral manner
+$code.=<<___;
+.rdata
+.align	6
+AES_Te:
+.byte	0xc6,0x63,0x63,0xa5,	0xf8,0x7c,0x7c,0x84	# Te0
+.byte	0xee,0x77,0x77,0x99,	0xf6,0x7b,0x7b,0x8d
+.byte	0xff,0xf2,0xf2,0x0d,	0xd6,0x6b,0x6b,0xbd
+.byte	0xde,0x6f,0x6f,0xb1,	0x91,0xc5,0xc5,0x54
+.byte	0x60,0x30,0x30,0x50,	0x02,0x01,0x01,0x03
+.byte	0xce,0x67,0x67,0xa9,	0x56,0x2b,0x2b,0x7d
+.byte	0xe7,0xfe,0xfe,0x19,	0xb5,0xd7,0xd7,0x62
+.byte	0x4d,0xab,0xab,0xe6,	0xec,0x76,0x76,0x9a
+.byte	0x8f,0xca,0xca,0x45,	0x1f,0x82,0x82,0x9d
+.byte	0x89,0xc9,0xc9,0x40,	0xfa,0x7d,0x7d,0x87
+.byte	0xef,0xfa,0xfa,0x15,	0xb2,0x59,0x59,0xeb
+.byte	0x8e,0x47,0x47,0xc9,	0xfb,0xf0,0xf0,0x0b
+.byte	0x41,0xad,0xad,0xec,	0xb3,0xd4,0xd4,0x67
+.byte	0x5f,0xa2,0xa2,0xfd,	0x45,0xaf,0xaf,0xea
+.byte	0x23,0x9c,0x9c,0xbf,	0x53,0xa4,0xa4,0xf7
+.byte	0xe4,0x72,0x72,0x96,	0x9b,0xc0,0xc0,0x5b
+.byte	0x75,0xb7,0xb7,0xc2,	0xe1,0xfd,0xfd,0x1c
+.byte	0x3d,0x93,0x93,0xae,	0x4c,0x26,0x26,0x6a
+.byte	0x6c,0x36,0x36,0x5a,	0x7e,0x3f,0x3f,0x41
+.byte	0xf5,0xf7,0xf7,0x02,	0x83,0xcc,0xcc,0x4f
+.byte	0x68,0x34,0x34,0x5c,	0x51,0xa5,0xa5,0xf4
+.byte	0xd1,0xe5,0xe5,0x34,	0xf9,0xf1,0xf1,0x08
+.byte	0xe2,0x71,0x71,0x93,	0xab,0xd8,0xd8,0x73
+.byte	0x62,0x31,0x31,0x53,	0x2a,0x15,0x15,0x3f
+.byte	0x08,0x04,0x04,0x0c,	0x95,0xc7,0xc7,0x52
+.byte	0x46,0x23,0x23,0x65,	0x9d,0xc3,0xc3,0x5e
+.byte	0x30,0x18,0x18,0x28,	0x37,0x96,0x96,0xa1
+.byte	0x0a,0x05,0x05,0x0f,	0x2f,0x9a,0x9a,0xb5
+.byte	0x0e,0x07,0x07,0x09,	0x24,0x12,0x12,0x36
+.byte	0x1b,0x80,0x80,0x9b,	0xdf,0xe2,0xe2,0x3d
+.byte	0xcd,0xeb,0xeb,0x26,	0x4e,0x27,0x27,0x69
+.byte	0x7f,0xb2,0xb2,0xcd,	0xea,0x75,0x75,0x9f
+.byte	0x12,0x09,0x09,0x1b,	0x1d,0x83,0x83,0x9e
+.byte	0x58,0x2c,0x2c,0x74,	0x34,0x1a,0x1a,0x2e
+.byte	0x36,0x1b,0x1b,0x2d,	0xdc,0x6e,0x6e,0xb2
+.byte	0xb4,0x5a,0x5a,0xee,	0x5b,0xa0,0xa0,0xfb
+.byte	0xa4,0x52,0x52,0xf6,	0x76,0x3b,0x3b,0x4d
+.byte	0xb7,0xd6,0xd6,0x61,	0x7d,0xb3,0xb3,0xce
+.byte	0x52,0x29,0x29,0x7b,	0xdd,0xe3,0xe3,0x3e
+.byte	0x5e,0x2f,0x2f,0x71,	0x13,0x84,0x84,0x97
+.byte	0xa6,0x53,0x53,0xf5,	0xb9,0xd1,0xd1,0x68
+.byte	0x00,0x00,0x00,0x00,	0xc1,0xed,0xed,0x2c
+.byte	0x40,0x20,0x20,0x60,	0xe3,0xfc,0xfc,0x1f
+.byte	0x79,0xb1,0xb1,0xc8,	0xb6,0x5b,0x5b,0xed
+.byte	0xd4,0x6a,0x6a,0xbe,	0x8d,0xcb,0xcb,0x46
+.byte	0x67,0xbe,0xbe,0xd9,	0x72,0x39,0x39,0x4b
+.byte	0x94,0x4a,0x4a,0xde,	0x98,0x4c,0x4c,0xd4
+.byte	0xb0,0x58,0x58,0xe8,	0x85,0xcf,0xcf,0x4a
+.byte	0xbb,0xd0,0xd0,0x6b,	0xc5,0xef,0xef,0x2a
+.byte	0x4f,0xaa,0xaa,0xe5,	0xed,0xfb,0xfb,0x16
+.byte	0x86,0x43,0x43,0xc5,	0x9a,0x4d,0x4d,0xd7
+.byte	0x66,0x33,0x33,0x55,	0x11,0x85,0x85,0x94
+.byte	0x8a,0x45,0x45,0xcf,	0xe9,0xf9,0xf9,0x10
+.byte	0x04,0x02,0x02,0x06,	0xfe,0x7f,0x7f,0x81
+.byte	0xa0,0x50,0x50,0xf0,	0x78,0x3c,0x3c,0x44
+.byte	0x25,0x9f,0x9f,0xba,	0x4b,0xa8,0xa8,0xe3
+.byte	0xa2,0x51,0x51,0xf3,	0x5d,0xa3,0xa3,0xfe
+.byte	0x80,0x40,0x40,0xc0,	0x05,0x8f,0x8f,0x8a
+.byte	0x3f,0x92,0x92,0xad,	0x21,0x9d,0x9d,0xbc
+.byte	0x70,0x38,0x38,0x48,	0xf1,0xf5,0xf5,0x04
+.byte	0x63,0xbc,0xbc,0xdf,	0x77,0xb6,0xb6,0xc1
+.byte	0xaf,0xda,0xda,0x75,	0x42,0x21,0x21,0x63
+.byte	0x20,0x10,0x10,0x30,	0xe5,0xff,0xff,0x1a
+.byte	0xfd,0xf3,0xf3,0x0e,	0xbf,0xd2,0xd2,0x6d
+.byte	0x81,0xcd,0xcd,0x4c,	0x18,0x0c,0x0c,0x14
+.byte	0x26,0x13,0x13,0x35,	0xc3,0xec,0xec,0x2f
+.byte	0xbe,0x5f,0x5f,0xe1,	0x35,0x97,0x97,0xa2
+.byte	0x88,0x44,0x44,0xcc,	0x2e,0x17,0x17,0x39
+.byte	0x93,0xc4,0xc4,0x57,	0x55,0xa7,0xa7,0xf2
+.byte	0xfc,0x7e,0x7e,0x82,	0x7a,0x3d,0x3d,0x47
+.byte	0xc8,0x64,0x64,0xac,	0xba,0x5d,0x5d,0xe7
+.byte	0x32,0x19,0x19,0x2b,	0xe6,0x73,0x73,0x95
+.byte	0xc0,0x60,0x60,0xa0,	0x19,0x81,0x81,0x98
+.byte	0x9e,0x4f,0x4f,0xd1,	0xa3,0xdc,0xdc,0x7f
+.byte	0x44,0x22,0x22,0x66,	0x54,0x2a,0x2a,0x7e
+.byte	0x3b,0x90,0x90,0xab,	0x0b,0x88,0x88,0x83
+.byte	0x8c,0x46,0x46,0xca,	0xc7,0xee,0xee,0x29
+.byte	0x6b,0xb8,0xb8,0xd3,	0x28,0x14,0x14,0x3c
+.byte	0xa7,0xde,0xde,0x79,	0xbc,0x5e,0x5e,0xe2
+.byte	0x16,0x0b,0x0b,0x1d,	0xad,0xdb,0xdb,0x76
+.byte	0xdb,0xe0,0xe0,0x3b,	0x64,0x32,0x32,0x56
+.byte	0x74,0x3a,0x3a,0x4e,	0x14,0x0a,0x0a,0x1e
+.byte	0x92,0x49,0x49,0xdb,	0x0c,0x06,0x06,0x0a
+.byte	0x48,0x24,0x24,0x6c,	0xb8,0x5c,0x5c,0xe4
+.byte	0x9f,0xc2,0xc2,0x5d,	0xbd,0xd3,0xd3,0x6e
+.byte	0x43,0xac,0xac,0xef,	0xc4,0x62,0x62,0xa6
+.byte	0x39,0x91,0x91,0xa8,	0x31,0x95,0x95,0xa4
+.byte	0xd3,0xe4,0xe4,0x37,	0xf2,0x79,0x79,0x8b
+.byte	0xd5,0xe7,0xe7,0x32,	0x8b,0xc8,0xc8,0x43
+.byte	0x6e,0x37,0x37,0x59,	0xda,0x6d,0x6d,0xb7
+.byte	0x01,0x8d,0x8d,0x8c,	0xb1,0xd5,0xd5,0x64
+.byte	0x9c,0x4e,0x4e,0xd2,	0x49,0xa9,0xa9,0xe0
+.byte	0xd8,0x6c,0x6c,0xb4,	0xac,0x56,0x56,0xfa
+.byte	0xf3,0xf4,0xf4,0x07,	0xcf,0xea,0xea,0x25
+.byte	0xca,0x65,0x65,0xaf,	0xf4,0x7a,0x7a,0x8e
+.byte	0x47,0xae,0xae,0xe9,	0x10,0x08,0x08,0x18
+.byte	0x6f,0xba,0xba,0xd5,	0xf0,0x78,0x78,0x88
+.byte	0x4a,0x25,0x25,0x6f,	0x5c,0x2e,0x2e,0x72
+.byte	0x38,0x1c,0x1c,0x24,	0x57,0xa6,0xa6,0xf1
+.byte	0x73,0xb4,0xb4,0xc7,	0x97,0xc6,0xc6,0x51
+.byte	0xcb,0xe8,0xe8,0x23,	0xa1,0xdd,0xdd,0x7c
+.byte	0xe8,0x74,0x74,0x9c,	0x3e,0x1f,0x1f,0x21
+.byte	0x96,0x4b,0x4b,0xdd,	0x61,0xbd,0xbd,0xdc
+.byte	0x0d,0x8b,0x8b,0x86,	0x0f,0x8a,0x8a,0x85
+.byte	0xe0,0x70,0x70,0x90,	0x7c,0x3e,0x3e,0x42
+.byte	0x71,0xb5,0xb5,0xc4,	0xcc,0x66,0x66,0xaa
+.byte	0x90,0x48,0x48,0xd8,	0x06,0x03,0x03,0x05
+.byte	0xf7,0xf6,0xf6,0x01,	0x1c,0x0e,0x0e,0x12
+.byte	0xc2,0x61,0x61,0xa3,	0x6a,0x35,0x35,0x5f
+.byte	0xae,0x57,0x57,0xf9,	0x69,0xb9,0xb9,0xd0
+.byte	0x17,0x86,0x86,0x91,	0x99,0xc1,0xc1,0x58
+.byte	0x3a,0x1d,0x1d,0x27,	0x27,0x9e,0x9e,0xb9
+.byte	0xd9,0xe1,0xe1,0x38,	0xeb,0xf8,0xf8,0x13
+.byte	0x2b,0x98,0x98,0xb3,	0x22,0x11,0x11,0x33
+.byte	0xd2,0x69,0x69,0xbb,	0xa9,0xd9,0xd9,0x70
+.byte	0x07,0x8e,0x8e,0x89,	0x33,0x94,0x94,0xa7
+.byte	0x2d,0x9b,0x9b,0xb6,	0x3c,0x1e,0x1e,0x22
+.byte	0x15,0x87,0x87,0x92,	0xc9,0xe9,0xe9,0x20
+.byte	0x87,0xce,0xce,0x49,	0xaa,0x55,0x55,0xff
+.byte	0x50,0x28,0x28,0x78,	0xa5,0xdf,0xdf,0x7a
+.byte	0x03,0x8c,0x8c,0x8f,	0x59,0xa1,0xa1,0xf8
+.byte	0x09,0x89,0x89,0x80,	0x1a,0x0d,0x0d,0x17
+.byte	0x65,0xbf,0xbf,0xda,	0xd7,0xe6,0xe6,0x31
+.byte	0x84,0x42,0x42,0xc6,	0xd0,0x68,0x68,0xb8
+.byte	0x82,0x41,0x41,0xc3,	0x29,0x99,0x99,0xb0
+.byte	0x5a,0x2d,0x2d,0x77,	0x1e,0x0f,0x0f,0x11
+.byte	0x7b,0xb0,0xb0,0xcb,	0xa8,0x54,0x54,0xfc
+.byte	0x6d,0xbb,0xbb,0xd6,	0x2c,0x16,0x16,0x3a
+
+.byte	0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5	# Te4
+.byte	0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
+.byte	0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
+.byte	0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
+.byte	0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
+.byte	0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
+.byte	0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
+.byte	0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
+.byte	0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
+.byte	0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
+.byte	0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
+.byte	0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
+.byte	0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
+.byte	0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
+.byte	0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
+.byte	0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
+.byte	0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
+.byte	0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
+.byte	0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
+.byte	0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
+.byte	0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
+.byte	0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
+.byte	0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
+.byte	0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
+.byte	0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
+.byte	0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
+.byte	0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
+.byte	0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
+.byte	0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
+.byte	0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
+.byte	0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
+.byte	0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
+
+.byte	0x01,0x00,0x00,0x00,	0x02,0x00,0x00,0x00	# rcon
+.byte	0x04,0x00,0x00,0x00,	0x08,0x00,0x00,0x00
+.byte	0x10,0x00,0x00,0x00,	0x20,0x00,0x00,0x00
+.byte	0x40,0x00,0x00,0x00,	0x80,0x00,0x00,0x00
+.byte	0x1B,0x00,0x00,0x00,	0x36,0x00,0x00,0x00
+
+.align	6
+AES_Td:
+.byte	0x51,0xf4,0xa7,0x50,	0x7e,0x41,0x65,0x53	# Td0
+.byte	0x1a,0x17,0xa4,0xc3,	0x3a,0x27,0x5e,0x96
+.byte	0x3b,0xab,0x6b,0xcb,	0x1f,0x9d,0x45,0xf1
+.byte	0xac,0xfa,0x58,0xab,	0x4b,0xe3,0x03,0x93
+.byte	0x20,0x30,0xfa,0x55,	0xad,0x76,0x6d,0xf6
+.byte	0x88,0xcc,0x76,0x91,	0xf5,0x02,0x4c,0x25
+.byte	0x4f,0xe5,0xd7,0xfc,	0xc5,0x2a,0xcb,0xd7
+.byte	0x26,0x35,0x44,0x80,	0xb5,0x62,0xa3,0x8f
+.byte	0xde,0xb1,0x5a,0x49,	0x25,0xba,0x1b,0x67
+.byte	0x45,0xea,0x0e,0x98,	0x5d,0xfe,0xc0,0xe1
+.byte	0xc3,0x2f,0x75,0x02,	0x81,0x4c,0xf0,0x12
+.byte	0x8d,0x46,0x97,0xa3,	0x6b,0xd3,0xf9,0xc6
+.byte	0x03,0x8f,0x5f,0xe7,	0x15,0x92,0x9c,0x95
+.byte	0xbf,0x6d,0x7a,0xeb,	0x95,0x52,0x59,0xda
+.byte	0xd4,0xbe,0x83,0x2d,	0x58,0x74,0x21,0xd3
+.byte	0x49,0xe0,0x69,0x29,	0x8e,0xc9,0xc8,0x44
+.byte	0x75,0xc2,0x89,0x6a,	0xf4,0x8e,0x79,0x78
+.byte	0x99,0x58,0x3e,0x6b,	0x27,0xb9,0x71,0xdd
+.byte	0xbe,0xe1,0x4f,0xb6,	0xf0,0x88,0xad,0x17
+.byte	0xc9,0x20,0xac,0x66,	0x7d,0xce,0x3a,0xb4
+.byte	0x63,0xdf,0x4a,0x18,	0xe5,0x1a,0x31,0x82
+.byte	0x97,0x51,0x33,0x60,	0x62,0x53,0x7f,0x45
+.byte	0xb1,0x64,0x77,0xe0,	0xbb,0x6b,0xae,0x84
+.byte	0xfe,0x81,0xa0,0x1c,	0xf9,0x08,0x2b,0x94
+.byte	0x70,0x48,0x68,0x58,	0x8f,0x45,0xfd,0x19
+.byte	0x94,0xde,0x6c,0x87,	0x52,0x7b,0xf8,0xb7
+.byte	0xab,0x73,0xd3,0x23,	0x72,0x4b,0x02,0xe2
+.byte	0xe3,0x1f,0x8f,0x57,	0x66,0x55,0xab,0x2a
+.byte	0xb2,0xeb,0x28,0x07,	0x2f,0xb5,0xc2,0x03
+.byte	0x86,0xc5,0x7b,0x9a,	0xd3,0x37,0x08,0xa5
+.byte	0x30,0x28,0x87,0xf2,	0x23,0xbf,0xa5,0xb2
+.byte	0x02,0x03,0x6a,0xba,	0xed,0x16,0x82,0x5c
+.byte	0x8a,0xcf,0x1c,0x2b,	0xa7,0x79,0xb4,0x92
+.byte	0xf3,0x07,0xf2,0xf0,	0x4e,0x69,0xe2,0xa1
+.byte	0x65,0xda,0xf4,0xcd,	0x06,0x05,0xbe,0xd5
+.byte	0xd1,0x34,0x62,0x1f,	0xc4,0xa6,0xfe,0x8a
+.byte	0x34,0x2e,0x53,0x9d,	0xa2,0xf3,0x55,0xa0
+.byte	0x05,0x8a,0xe1,0x32,	0xa4,0xf6,0xeb,0x75
+.byte	0x0b,0x83,0xec,0x39,	0x40,0x60,0xef,0xaa
+.byte	0x5e,0x71,0x9f,0x06,	0xbd,0x6e,0x10,0x51
+.byte	0x3e,0x21,0x8a,0xf9,	0x96,0xdd,0x06,0x3d
+.byte	0xdd,0x3e,0x05,0xae,	0x4d,0xe6,0xbd,0x46
+.byte	0x91,0x54,0x8d,0xb5,	0x71,0xc4,0x5d,0x05
+.byte	0x04,0x06,0xd4,0x6f,	0x60,0x50,0x15,0xff
+.byte	0x19,0x98,0xfb,0x24,	0xd6,0xbd,0xe9,0x97
+.byte	0x89,0x40,0x43,0xcc,	0x67,0xd9,0x9e,0x77
+.byte	0xb0,0xe8,0x42,0xbd,	0x07,0x89,0x8b,0x88
+.byte	0xe7,0x19,0x5b,0x38,	0x79,0xc8,0xee,0xdb
+.byte	0xa1,0x7c,0x0a,0x47,	0x7c,0x42,0x0f,0xe9
+.byte	0xf8,0x84,0x1e,0xc9,	0x00,0x00,0x00,0x00
+.byte	0x09,0x80,0x86,0x83,	0x32,0x2b,0xed,0x48
+.byte	0x1e,0x11,0x70,0xac,	0x6c,0x5a,0x72,0x4e
+.byte	0xfd,0x0e,0xff,0xfb,	0x0f,0x85,0x38,0x56
+.byte	0x3d,0xae,0xd5,0x1e,	0x36,0x2d,0x39,0x27
+.byte	0x0a,0x0f,0xd9,0x64,	0x68,0x5c,0xa6,0x21
+.byte	0x9b,0x5b,0x54,0xd1,	0x24,0x36,0x2e,0x3a
+.byte	0x0c,0x0a,0x67,0xb1,	0x93,0x57,0xe7,0x0f
+.byte	0xb4,0xee,0x96,0xd2,	0x1b,0x9b,0x91,0x9e
+.byte	0x80,0xc0,0xc5,0x4f,	0x61,0xdc,0x20,0xa2
+.byte	0x5a,0x77,0x4b,0x69,	0x1c,0x12,0x1a,0x16
+.byte	0xe2,0x93,0xba,0x0a,	0xc0,0xa0,0x2a,0xe5
+.byte	0x3c,0x22,0xe0,0x43,	0x12,0x1b,0x17,0x1d
+.byte	0x0e,0x09,0x0d,0x0b,	0xf2,0x8b,0xc7,0xad
+.byte	0x2d,0xb6,0xa8,0xb9,	0x14,0x1e,0xa9,0xc8
+.byte	0x57,0xf1,0x19,0x85,	0xaf,0x75,0x07,0x4c
+.byte	0xee,0x99,0xdd,0xbb,	0xa3,0x7f,0x60,0xfd
+.byte	0xf7,0x01,0x26,0x9f,	0x5c,0x72,0xf5,0xbc
+.byte	0x44,0x66,0x3b,0xc5,	0x5b,0xfb,0x7e,0x34
+.byte	0x8b,0x43,0x29,0x76,	0xcb,0x23,0xc6,0xdc
+.byte	0xb6,0xed,0xfc,0x68,	0xb8,0xe4,0xf1,0x63
+.byte	0xd7,0x31,0xdc,0xca,	0x42,0x63,0x85,0x10
+.byte	0x13,0x97,0x22,0x40,	0x84,0xc6,0x11,0x20
+.byte	0x85,0x4a,0x24,0x7d,	0xd2,0xbb,0x3d,0xf8
+.byte	0xae,0xf9,0x32,0x11,	0xc7,0x29,0xa1,0x6d
+.byte	0x1d,0x9e,0x2f,0x4b,	0xdc,0xb2,0x30,0xf3
+.byte	0x0d,0x86,0x52,0xec,	0x77,0xc1,0xe3,0xd0
+.byte	0x2b,0xb3,0x16,0x6c,	0xa9,0x70,0xb9,0x99
+.byte	0x11,0x94,0x48,0xfa,	0x47,0xe9,0x64,0x22
+.byte	0xa8,0xfc,0x8c,0xc4,	0xa0,0xf0,0x3f,0x1a
+.byte	0x56,0x7d,0x2c,0xd8,	0x22,0x33,0x90,0xef
+.byte	0x87,0x49,0x4e,0xc7,	0xd9,0x38,0xd1,0xc1
+.byte	0x8c,0xca,0xa2,0xfe,	0x98,0xd4,0x0b,0x36
+.byte	0xa6,0xf5,0x81,0xcf,	0xa5,0x7a,0xde,0x28
+.byte	0xda,0xb7,0x8e,0x26,	0x3f,0xad,0xbf,0xa4
+.byte	0x2c,0x3a,0x9d,0xe4,	0x50,0x78,0x92,0x0d
+.byte	0x6a,0x5f,0xcc,0x9b,	0x54,0x7e,0x46,0x62
+.byte	0xf6,0x8d,0x13,0xc2,	0x90,0xd8,0xb8,0xe8
+.byte	0x2e,0x39,0xf7,0x5e,	0x82,0xc3,0xaf,0xf5
+.byte	0x9f,0x5d,0x80,0xbe,	0x69,0xd0,0x93,0x7c
+.byte	0x6f,0xd5,0x2d,0xa9,	0xcf,0x25,0x12,0xb3
+.byte	0xc8,0xac,0x99,0x3b,	0x10,0x18,0x7d,0xa7
+.byte	0xe8,0x9c,0x63,0x6e,	0xdb,0x3b,0xbb,0x7b
+.byte	0xcd,0x26,0x78,0x09,	0x6e,0x59,0x18,0xf4
+.byte	0xec,0x9a,0xb7,0x01,	0x83,0x4f,0x9a,0xa8
+.byte	0xe6,0x95,0x6e,0x65,	0xaa,0xff,0xe6,0x7e
+.byte	0x21,0xbc,0xcf,0x08,	0xef,0x15,0xe8,0xe6
+.byte	0xba,0xe7,0x9b,0xd9,	0x4a,0x6f,0x36,0xce
+.byte	0xea,0x9f,0x09,0xd4,	0x29,0xb0,0x7c,0xd6
+.byte	0x31,0xa4,0xb2,0xaf,	0x2a,0x3f,0x23,0x31
+.byte	0xc6,0xa5,0x94,0x30,	0x35,0xa2,0x66,0xc0
+.byte	0x74,0x4e,0xbc,0x37,	0xfc,0x82,0xca,0xa6
+.byte	0xe0,0x90,0xd0,0xb0,	0x33,0xa7,0xd8,0x15
+.byte	0xf1,0x04,0x98,0x4a,	0x41,0xec,0xda,0xf7
+.byte	0x7f,0xcd,0x50,0x0e,	0x17,0x91,0xf6,0x2f
+.byte	0x76,0x4d,0xd6,0x8d,	0x43,0xef,0xb0,0x4d
+.byte	0xcc,0xaa,0x4d,0x54,	0xe4,0x96,0x04,0xdf
+.byte	0x9e,0xd1,0xb5,0xe3,	0x4c,0x6a,0x88,0x1b
+.byte	0xc1,0x2c,0x1f,0xb8,	0x46,0x65,0x51,0x7f
+.byte	0x9d,0x5e,0xea,0x04,	0x01,0x8c,0x35,0x5d
+.byte	0xfa,0x87,0x74,0x73,	0xfb,0x0b,0x41,0x2e
+.byte	0xb3,0x67,0x1d,0x5a,	0x92,0xdb,0xd2,0x52
+.byte	0xe9,0x10,0x56,0x33,	0x6d,0xd6,0x47,0x13
+.byte	0x9a,0xd7,0x61,0x8c,	0x37,0xa1,0x0c,0x7a
+.byte	0x59,0xf8,0x14,0x8e,	0xeb,0x13,0x3c,0x89
+.byte	0xce,0xa9,0x27,0xee,	0xb7,0x61,0xc9,0x35
+.byte	0xe1,0x1c,0xe5,0xed,	0x7a,0x47,0xb1,0x3c
+.byte	0x9c,0xd2,0xdf,0x59,	0x55,0xf2,0x73,0x3f
+.byte	0x18,0x14,0xce,0x79,	0x73,0xc7,0x37,0xbf
+.byte	0x53,0xf7,0xcd,0xea,	0x5f,0xfd,0xaa,0x5b
+.byte	0xdf,0x3d,0x6f,0x14,	0x78,0x44,0xdb,0x86
+.byte	0xca,0xaf,0xf3,0x81,	0xb9,0x68,0xc4,0x3e
+.byte	0x38,0x24,0x34,0x2c,	0xc2,0xa3,0x40,0x5f
+.byte	0x16,0x1d,0xc3,0x72,	0xbc,0xe2,0x25,0x0c
+.byte	0x28,0x3c,0x49,0x8b,	0xff,0x0d,0x95,0x41
+.byte	0x39,0xa8,0x01,0x71,	0x08,0x0c,0xb3,0xde
+.byte	0xd8,0xb4,0xe4,0x9c,	0x64,0x56,0xc1,0x90
+.byte	0x7b,0xcb,0x84,0x61,	0xd5,0x32,0xb6,0x70
+.byte	0x48,0x6c,0x5c,0x74,	0xd0,0xb8,0x57,0x42
+
+.byte	0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38	# Td4
+.byte	0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
+.byte	0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
+.byte	0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
+.byte	0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
+.byte	0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
+.byte	0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
+.byte	0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
+.byte	0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
+.byte	0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
+.byte	0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
+.byte	0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
+.byte	0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
+.byte	0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
+.byte	0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
+.byte	0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
+.byte	0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
+.byte	0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
+.byte	0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
+.byte	0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
+.byte	0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
+.byte	0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
+.byte	0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
+.byte	0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
+.byte	0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
+.byte	0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
+.byte	0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
+.byte	0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
+.byte	0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
+.byte	0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
+.byte	0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
+.byte	0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
+___
+
+foreach (split("\n",$code)) {
+	s/\`([^\`]*)\`/eval $1/ge;
+
+	# made-up _instructions, _xtr, _ins, _ror and _bias, cope
+	# with byte order dependencies...
+	if (/^\s+_/) {
+	    s/(_[a-z]+\s+)(\$[0-9]+),([^,]+)(#.*)*$/$1$2,$2,$3/;
+
+	    s/_xtr\s+(\$[0-9]+),(\$[0-9]+),([0-9]+(\-2)*)/
+		sprintf("srl\t$1,$2,%d",$big_endian ?	eval($3)
+					:		eval("24-$3"))/e or
+	    s/_ins\s+(\$[0-9]+),(\$[0-9]+),([0-9]+)/
+		sprintf("sll\t$1,$2,%d",$big_endian ?	eval($3)
+					:		eval("24-$3"))/e or
+	    s/_ror\s+(\$[0-9]+),(\$[0-9]+),(\-?[0-9]+)/
+		sprintf("srl\t$1,$2,%d",$big_endian ?	eval($3)
+					:		eval("$3*-1"))/e or
+	    s/_bias\s+(\$[0-9]+),(\$[0-9]+),([0-9]+)/
+		sprintf("sll\t$1,$2,%d",$big_endian ?	eval($3)
+					:		eval("($3-16)&31"))/e;
+
+	    s/srl\s+(\$[0-9]+),(\$[0-9]+),\-([0-9]+)/
+		sprintf("sll\t$1,$2,$3")/e				or
+	    s/srl\s+(\$[0-9]+),(\$[0-9]+),0/
+		sprintf("and\t$1,$2,0xff")/e				or
+	    s/(sll\s+\$[0-9]+,\$[0-9]+,0)/#$1/;
+	}
+
+	# convert lwl/lwr and swr/swl to little-endian order
+	if (!$big_endian && /^\s+[sl]w[lr]\s+/) {
+	    s/([sl]wl.*)([0-9]+)\((\$[0-9]+)\)/
+		sprintf("$1%d($3)",eval("$2-$2%4+($2%4-1)&3"))/e	or
+	    s/([sl]wr.*)([0-9]+)\((\$[0-9]+)\)/
+		sprintf("$1%d($3)",eval("$2-$2%4+($2%4+1)&3"))/e;
+	}
+
+	print $_,"\n";
+}
+
+close STDOUT;