zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/poly1305/asm/poly1305-ppcfp.pl b/ap/lib/libssl/openssl-1.1.1o/crypto/poly1305/asm/poly1305-ppcfp.pl
new file mode 100755
index 0000000..a9ab207
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/poly1305/asm/poly1305-ppcfp.pl
@@ -0,0 +1,739 @@
+#! /usr/bin/env perl
+# Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License"). You may not use
+# this file except in compliance with the License. You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+#
+# ====================================================================
+# 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/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for PowerPC FPU.
+#
+# June 2015
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# and improvement coefficients relative to gcc-generated code.
+#
+# Freescale e300 9.78/+30%
+# PPC74x0 6.92/+50%
+# PPC970 6.03/+80%
+# POWER7 3.50/+30%
+# POWER8 3.75/+10%
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $UCMP ="cmpld";
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $UCMP ="cmplw";
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+} else { die "nonsense $flavour"; }
+
+$LITTLE_ENDIAN = ($flavour=~/le$/) ? 4 : 0;
+
+$LWXLE = $LITTLE_ENDIAN ? "lwzx" : "lwbrx";
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
+die "can't locate ppc-xlate.pl";
+
+open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
+
+$LOCALS=6*$SIZE_T;
+$FRAME=$LOCALS+6*8+18*8;
+
+my $sp="r1";
+
+my ($ctx,$inp,$len,$padbit) = map("r$_",(3..6));
+my ($in0,$in1,$in2,$in3,$i1,$i2,$i3) = map("r$_",(7..12,6));
+
+my ($h0lo,$h0hi,$h1lo,$h1hi,$h2lo,$h2hi,$h3lo,$h3hi,
+ $two0,$two32,$two64,$two96,$two130,$five_two130,
+ $r0lo,$r0hi,$r1lo,$r1hi,$r2lo,$r2hi,
+ $s2lo,$s2hi,$s3lo,$s3hi,
+ $c0lo,$c0hi,$c1lo,$c1hi,$c2lo,$c2hi,$c3lo,$c3hi) = map("f$_",(0..31));
+# borrowings
+my ($r3lo,$r3hi,$s1lo,$s1hi) = ($c0lo,$c0hi,$c1lo,$c1hi);
+my ($x0,$x1,$x2,$x3) = ($c2lo,$c2hi,$c3lo,$c3hi);
+my ($y0,$y1,$y2,$y3) = ($c3lo,$c3hi,$c1lo,$c1hi);
+
+$code.=<<___;
+.machine "any"
+.text
+
+.globl .poly1305_init_fpu
+.align 6
+.poly1305_init_fpu:
+ $STU $sp,-$LOCALS($sp) # minimal frame
+ mflr $padbit
+ $PUSH $padbit,`$LOCALS+$LRSAVE`($sp)
+
+ bl LPICmeup
+
+ xor r0,r0,r0
+ mtlr $padbit # restore lr
+
+ lfd $two0,8*0($len) # load constants
+ lfd $two32,8*1($len)
+ lfd $two64,8*2($len)
+ lfd $two96,8*3($len)
+ lfd $two130,8*4($len)
+ lfd $five_two130,8*5($len)
+
+ stfd $two0,8*0($ctx) # initial hash value, biased 0
+ stfd $two32,8*1($ctx)
+ stfd $two64,8*2($ctx)
+ stfd $two96,8*3($ctx)
+
+ $UCMP $inp,r0
+ beq- Lno_key
+
+ lfd $h3lo,8*13($len) # new fpscr
+ mffs $h3hi # old fpscr
+
+ stfd $two0,8*4($ctx) # key "template"
+ stfd $two32,8*5($ctx)
+ stfd $two64,8*6($ctx)
+ stfd $two96,8*7($ctx)
+
+ li $in1,4
+ li $in2,8
+ li $in3,12
+ $LWXLE $in0,0,$inp # load key
+ $LWXLE $in1,$in1,$inp
+ $LWXLE $in2,$in2,$inp
+ $LWXLE $in3,$in3,$inp
+
+ lis $i1,0xf000 # 0xf0000000
+ ori $i2,$i1,3 # 0xf0000003
+ andc $in0,$in0,$i1 # &=0x0fffffff
+ andc $in1,$in1,$i2 # &=0x0ffffffc
+ andc $in2,$in2,$i2
+ andc $in3,$in3,$i2
+
+ stw $in0,`8*4+(4^$LITTLE_ENDIAN)`($ctx) # fill "template"
+ stw $in1,`8*5+(4^$LITTLE_ENDIAN)`($ctx)
+ stw $in2,`8*6+(4^$LITTLE_ENDIAN)`($ctx)
+ stw $in3,`8*7+(4^$LITTLE_ENDIAN)`($ctx)
+
+ mtfsf 255,$h3lo # fpscr
+ stfd $two0,8*18($ctx) # copy constants to context
+ stfd $two32,8*19($ctx)
+ stfd $two64,8*20($ctx)
+ stfd $two96,8*21($ctx)
+ stfd $two130,8*22($ctx)
+ stfd $five_two130,8*23($ctx)
+
+ lfd $h0lo,8*4($ctx) # load [biased] key
+ lfd $h1lo,8*5($ctx)
+ lfd $h2lo,8*6($ctx)
+ lfd $h3lo,8*7($ctx)
+
+ fsub $h0lo,$h0lo,$two0 # r0
+ fsub $h1lo,$h1lo,$two32 # r1
+ fsub $h2lo,$h2lo,$two64 # r2
+ fsub $h3lo,$h3lo,$two96 # r3
+
+ lfd $two0,8*6($len) # more constants
+ lfd $two32,8*7($len)
+ lfd $two64,8*8($len)
+ lfd $two96,8*9($len)
+
+ fmul $h1hi,$h1lo,$five_two130 # s1
+ fmul $h2hi,$h2lo,$five_two130 # s2
+ stfd $h3hi,8*15($ctx) # borrow slot for original fpscr
+ fmul $h3hi,$h3lo,$five_two130 # s3
+
+ fadd $h0hi,$h0lo,$two0
+ stfd $h1hi,8*12($ctx) # put aside for now
+ fadd $h1hi,$h1lo,$two32
+ stfd $h2hi,8*13($ctx)
+ fadd $h2hi,$h2lo,$two64
+ stfd $h3hi,8*14($ctx)
+ fadd $h3hi,$h3lo,$two96
+
+ fsub $h0hi,$h0hi,$two0
+ fsub $h1hi,$h1hi,$two32
+ fsub $h2hi,$h2hi,$two64
+ fsub $h3hi,$h3hi,$two96
+
+ lfd $two0,8*10($len) # more constants
+ lfd $two32,8*11($len)
+ lfd $two64,8*12($len)
+
+ fsub $h0lo,$h0lo,$h0hi
+ fsub $h1lo,$h1lo,$h1hi
+ fsub $h2lo,$h2lo,$h2hi
+ fsub $h3lo,$h3lo,$h3hi
+
+ stfd $h0hi,8*5($ctx) # r0hi
+ stfd $h1hi,8*7($ctx) # r1hi
+ stfd $h2hi,8*9($ctx) # r2hi
+ stfd $h3hi,8*11($ctx) # r3hi
+
+ stfd $h0lo,8*4($ctx) # r0lo
+ stfd $h1lo,8*6($ctx) # r1lo
+ stfd $h2lo,8*8($ctx) # r2lo
+ stfd $h3lo,8*10($ctx) # r3lo
+
+ lfd $h1lo,8*12($ctx) # s1
+ lfd $h2lo,8*13($ctx) # s2
+ lfd $h3lo,8*14($ctx) # s3
+ lfd $h0lo,8*15($ctx) # pull original fpscr
+
+ fadd $h1hi,$h1lo,$two0
+ fadd $h2hi,$h2lo,$two32
+ fadd $h3hi,$h3lo,$two64
+
+ fsub $h1hi,$h1hi,$two0
+ fsub $h2hi,$h2hi,$two32
+ fsub $h3hi,$h3hi,$two64
+
+ fsub $h1lo,$h1lo,$h1hi
+ fsub $h2lo,$h2lo,$h2hi
+ fsub $h3lo,$h3lo,$h3hi
+
+ stfd $h1hi,8*13($ctx) # s1hi
+ stfd $h2hi,8*15($ctx) # s2hi
+ stfd $h3hi,8*17($ctx) # s3hi
+
+ stfd $h1lo,8*12($ctx) # s1lo
+ stfd $h2lo,8*14($ctx) # s2lo
+ stfd $h3lo,8*16($ctx) # s3lo
+
+ mtfsf 255,$h0lo # restore fpscr
+Lno_key:
+ xor r3,r3,r3
+ addi $sp,$sp,$LOCALS
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,0,2,0
+.size .poly1305_init_fpu,.-.poly1305_init_fpu
+
+.globl .poly1305_blocks_fpu
+.align 4
+.poly1305_blocks_fpu:
+ srwi. $len,$len,4
+ beq- Labort
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ stfd f14,`$FRAME-8*18`($sp)
+ stfd f15,`$FRAME-8*17`($sp)
+ stfd f16,`$FRAME-8*16`($sp)
+ stfd f17,`$FRAME-8*15`($sp)
+ stfd f18,`$FRAME-8*14`($sp)
+ stfd f19,`$FRAME-8*13`($sp)
+ stfd f20,`$FRAME-8*12`($sp)
+ stfd f21,`$FRAME-8*11`($sp)
+ stfd f22,`$FRAME-8*10`($sp)
+ stfd f23,`$FRAME-8*9`($sp)
+ stfd f24,`$FRAME-8*8`($sp)
+ stfd f25,`$FRAME-8*7`($sp)
+ stfd f26,`$FRAME-8*6`($sp)
+ stfd f27,`$FRAME-8*5`($sp)
+ stfd f28,`$FRAME-8*4`($sp)
+ stfd f29,`$FRAME-8*3`($sp)
+ stfd f30,`$FRAME-8*2`($sp)
+ stfd f31,`$FRAME-8*1`($sp)
+ $PUSH r0,`$FRAME+$LRSAVE`($sp)
+
+ xor r0,r0,r0
+ li $in3,1
+ mtctr $len
+ neg $len,$len
+ stw r0,`$LOCALS+8*4+(0^$LITTLE_ENDIAN)`($sp)
+ stw $in3,`$LOCALS+8*4+(4^$LITTLE_ENDIAN)`($sp)
+
+ lfd $two0,8*18($ctx) # load constants
+ lfd $two32,8*19($ctx)
+ lfd $two64,8*20($ctx)
+ lfd $two96,8*21($ctx)
+ lfd $two130,8*22($ctx)
+ lfd $five_two130,8*23($ctx)
+
+ lfd $h0lo,8*0($ctx) # load [biased] hash value
+ lfd $h1lo,8*1($ctx)
+ lfd $h2lo,8*2($ctx)
+ lfd $h3lo,8*3($ctx)
+
+ stfd $two0,`$LOCALS+8*0`($sp) # input "template"
+ oris $in3,$padbit,`(1023+52+96)<<4`
+ stfd $two32,`$LOCALS+8*1`($sp)
+ stfd $two64,`$LOCALS+8*2`($sp)
+ stw $in3,`$LOCALS+8*3+(0^$LITTLE_ENDIAN)`($sp)
+
+ li $i1,4
+ li $i2,8
+ li $i3,12
+ $LWXLE $in0,0,$inp # load input
+ $LWXLE $in1,$i1,$inp
+ $LWXLE $in2,$i2,$inp
+ $LWXLE $in3,$i3,$inp
+ addi $inp,$inp,16
+
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+
+ mffs $x0 # original fpscr
+ lfd $x1,`$LOCALS+8*4`($sp) # new fpscr
+ lfd $r0lo,8*4($ctx) # load key
+ lfd $r0hi,8*5($ctx)
+ lfd $r1lo,8*6($ctx)
+ lfd $r1hi,8*7($ctx)
+ lfd $r2lo,8*8($ctx)
+ lfd $r2hi,8*9($ctx)
+ lfd $r3lo,8*10($ctx)
+ lfd $r3hi,8*11($ctx)
+ lfd $s1lo,8*12($ctx)
+ lfd $s1hi,8*13($ctx)
+ lfd $s2lo,8*14($ctx)
+ lfd $s2hi,8*15($ctx)
+ lfd $s3lo,8*16($ctx)
+ lfd $s3hi,8*17($ctx)
+
+ stfd $x0,`$LOCALS+8*4`($sp) # save original fpscr
+ mtfsf 255,$x1
+
+ addic $len,$len,1
+ addze r0,r0
+ slwi. r0,r0,4
+ sub $inp,$inp,r0 # conditional rewind
+
+ lfd $x0,`$LOCALS+8*0`($sp)
+ lfd $x1,`$LOCALS+8*1`($sp)
+ lfd $x2,`$LOCALS+8*2`($sp)
+ lfd $x3,`$LOCALS+8*3`($sp)
+
+ fsub $h0lo,$h0lo,$two0 # de-bias hash value
+ $LWXLE $in0,0,$inp # modulo-scheduled input load
+ fsub $h1lo,$h1lo,$two32
+ $LWXLE $in1,$i1,$inp
+ fsub $h2lo,$h2lo,$two64
+ $LWXLE $in2,$i2,$inp
+ fsub $h3lo,$h3lo,$two96
+ $LWXLE $in3,$i3,$inp
+
+ fsub $x0,$x0,$two0 # de-bias input
+ addi $inp,$inp,16
+ fsub $x1,$x1,$two32
+ fsub $x2,$x2,$two64
+ fsub $x3,$x3,$two96
+
+ fadd $x0,$x0,$h0lo # accumulate input
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x1,$x1,$h1lo
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x2,$x2,$h2lo
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x3,$x3,$h3lo
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+
+ b Lentry
+
+.align 4
+Loop:
+ fsub $y0,$y0,$two0 # de-bias input
+ addic $len,$len,1
+ fsub $y1,$y1,$two32
+ addze r0,r0
+ fsub $y2,$y2,$two64
+ slwi. r0,r0,4
+ fsub $y3,$y3,$two96
+ sub $inp,$inp,r0 # conditional rewind
+
+ fadd $h0lo,$h0lo,$y0 # accumulate input
+ fadd $h0hi,$h0hi,$y1
+ fadd $h2lo,$h2lo,$y2
+ fadd $h2hi,$h2hi,$y3
+
+ ######################################### base 2^48 -> base 2^32
+ fadd $c1lo,$h1lo,$two64
+ $LWXLE $in0,0,$inp # modulo-scheduled input load
+ fadd $c1hi,$h1hi,$two64
+ $LWXLE $in1,$i1,$inp
+ fadd $c3lo,$h3lo,$two130
+ $LWXLE $in2,$i2,$inp
+ fadd $c3hi,$h3hi,$two130
+ $LWXLE $in3,$i3,$inp
+ fadd $c0lo,$h0lo,$two32
+ addi $inp,$inp,16
+ fadd $c0hi,$h0hi,$two32
+ fadd $c2lo,$h2lo,$two96
+ fadd $c2hi,$h2hi,$two96
+
+ fsub $c1lo,$c1lo,$two64
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
+ fsub $c1hi,$c1hi,$two64
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c3lo,$c3lo,$two130
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c3hi,$c3hi,$two130
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c0lo,$c0lo,$two32
+ fsub $c0hi,$c0hi,$two32
+ fsub $c2lo,$c2lo,$two96
+ fsub $c2hi,$c2hi,$two96
+
+ fsub $h1lo,$h1lo,$c1lo
+ fsub $h1hi,$h1hi,$c1hi
+ fsub $h3lo,$h3lo,$c3lo
+ fsub $h3hi,$h3hi,$c3hi
+ fsub $h2lo,$h2lo,$c2lo
+ fsub $h2hi,$h2hi,$c2hi
+ fsub $h0lo,$h0lo,$c0lo
+ fsub $h0hi,$h0hi,$c0hi
+
+ fadd $h1lo,$h1lo,$c0lo
+ fadd $h1hi,$h1hi,$c0hi
+ fadd $h3lo,$h3lo,$c2lo
+ fadd $h3hi,$h3hi,$c2hi
+ fadd $h2lo,$h2lo,$c1lo
+ fadd $h2hi,$h2hi,$c1hi
+ fmadd $h0lo,$c3lo,$five_two130,$h0lo
+ fmadd $h0hi,$c3hi,$five_two130,$h0hi
+
+ fadd $x1,$h1lo,$h1hi
+ lfd $s1lo,8*12($ctx) # reload constants
+ fadd $x3,$h3lo,$h3hi
+ lfd $s1hi,8*13($ctx)
+ fadd $x2,$h2lo,$h2hi
+ lfd $r3lo,8*10($ctx)
+ fadd $x0,$h0lo,$h0hi
+ lfd $r3hi,8*11($ctx)
+Lentry:
+ fmul $h0lo,$s3lo,$x1
+ fmul $h0hi,$s3hi,$x1
+ fmul $h2lo,$r1lo,$x1
+ fmul $h2hi,$r1hi,$x1
+ fmul $h1lo,$r0lo,$x1
+ fmul $h1hi,$r0hi,$x1
+ fmul $h3lo,$r2lo,$x1
+ fmul $h3hi,$r2hi,$x1
+
+ fmadd $h0lo,$s1lo,$x3,$h0lo
+ fmadd $h0hi,$s1hi,$x3,$h0hi
+ fmadd $h2lo,$s3lo,$x3,$h2lo
+ fmadd $h2hi,$s3hi,$x3,$h2hi
+ fmadd $h1lo,$s2lo,$x3,$h1lo
+ fmadd $h1hi,$s2hi,$x3,$h1hi
+ fmadd $h3lo,$r0lo,$x3,$h3lo
+ fmadd $h3hi,$r0hi,$x3,$h3hi
+
+ fmadd $h0lo,$s2lo,$x2,$h0lo
+ fmadd $h0hi,$s2hi,$x2,$h0hi
+ fmadd $h2lo,$r0lo,$x2,$h2lo
+ fmadd $h2hi,$r0hi,$x2,$h2hi
+ fmadd $h1lo,$s3lo,$x2,$h1lo
+ fmadd $h1hi,$s3hi,$x2,$h1hi
+ fmadd $h3lo,$r1lo,$x2,$h3lo
+ fmadd $h3hi,$r1hi,$x2,$h3hi
+
+ fmadd $h0lo,$r0lo,$x0,$h0lo
+ lfd $y0,`$LOCALS+8*0`($sp) # load [biased] input
+ fmadd $h0hi,$r0hi,$x0,$h0hi
+ lfd $y1,`$LOCALS+8*1`($sp)
+ fmadd $h2lo,$r2lo,$x0,$h2lo
+ lfd $y2,`$LOCALS+8*2`($sp)
+ fmadd $h2hi,$r2hi,$x0,$h2hi
+ lfd $y3,`$LOCALS+8*3`($sp)
+ fmadd $h1lo,$r1lo,$x0,$h1lo
+ fmadd $h1hi,$r1hi,$x0,$h1hi
+ fmadd $h3lo,$r3lo,$x0,$h3lo
+ fmadd $h3hi,$r3hi,$x0,$h3hi
+
+ bdnz Loop
+
+ ######################################### base 2^48 -> base 2^32
+ fadd $c0lo,$h0lo,$two32
+ fadd $c0hi,$h0hi,$two32
+ fadd $c2lo,$h2lo,$two96
+ fadd $c2hi,$h2hi,$two96
+ fadd $c1lo,$h1lo,$two64
+ fadd $c1hi,$h1hi,$two64
+ fadd $c3lo,$h3lo,$two130
+ fadd $c3hi,$h3hi,$two130
+
+ fsub $c0lo,$c0lo,$two32
+ fsub $c0hi,$c0hi,$two32
+ fsub $c2lo,$c2lo,$two96
+ fsub $c2hi,$c2hi,$two96
+ fsub $c1lo,$c1lo,$two64
+ fsub $c1hi,$c1hi,$two64
+ fsub $c3lo,$c3lo,$two130
+ fsub $c3hi,$c3hi,$two130
+
+ fsub $h1lo,$h1lo,$c1lo
+ fsub $h1hi,$h1hi,$c1hi
+ fsub $h3lo,$h3lo,$c3lo
+ fsub $h3hi,$h3hi,$c3hi
+ fsub $h2lo,$h2lo,$c2lo
+ fsub $h2hi,$h2hi,$c2hi
+ fsub $h0lo,$h0lo,$c0lo
+ fsub $h0hi,$h0hi,$c0hi
+
+ fadd $h1lo,$h1lo,$c0lo
+ fadd $h1hi,$h1hi,$c0hi
+ fadd $h3lo,$h3lo,$c2lo
+ fadd $h3hi,$h3hi,$c2hi
+ fadd $h2lo,$h2lo,$c1lo
+ fadd $h2hi,$h2hi,$c1hi
+ fmadd $h0lo,$c3lo,$five_two130,$h0lo
+ fmadd $h0hi,$c3hi,$five_two130,$h0hi
+
+ fadd $x1,$h1lo,$h1hi
+ fadd $x3,$h3lo,$h3hi
+ fadd $x2,$h2lo,$h2hi
+ fadd $x0,$h0lo,$h0hi
+
+ lfd $h0lo,`$LOCALS+8*4`($sp) # pull saved fpscr
+ fadd $x1,$x1,$two32 # bias
+ fadd $x3,$x3,$two96
+ fadd $x2,$x2,$two64
+ fadd $x0,$x0,$two0
+
+ stfd $x1,8*1($ctx) # store [biased] hash value
+ stfd $x3,8*3($ctx)
+ stfd $x2,8*2($ctx)
+ stfd $x0,8*0($ctx)
+
+ mtfsf 255,$h0lo # restore original fpscr
+ lfd f14,`$FRAME-8*18`($sp)
+ lfd f15,`$FRAME-8*17`($sp)
+ lfd f16,`$FRAME-8*16`($sp)
+ lfd f17,`$FRAME-8*15`($sp)
+ lfd f18,`$FRAME-8*14`($sp)
+ lfd f19,`$FRAME-8*13`($sp)
+ lfd f20,`$FRAME-8*12`($sp)
+ lfd f21,`$FRAME-8*11`($sp)
+ lfd f22,`$FRAME-8*10`($sp)
+ lfd f23,`$FRAME-8*9`($sp)
+ lfd f24,`$FRAME-8*8`($sp)
+ lfd f25,`$FRAME-8*7`($sp)
+ lfd f26,`$FRAME-8*6`($sp)
+ lfd f27,`$FRAME-8*5`($sp)
+ lfd f28,`$FRAME-8*4`($sp)
+ lfd f29,`$FRAME-8*3`($sp)
+ lfd f30,`$FRAME-8*2`($sp)
+ lfd f31,`$FRAME-8*1`($sp)
+ addi $sp,$sp,$FRAME
+Labort:
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,0,4,0
+.size .poly1305_blocks_fpu,.-.poly1305_blocks_fpu
+___
+{
+my ($mac,$nonce)=($inp,$len);
+
+my ($h0,$h1,$h2,$h3,$h4, $d0,$d1,$d2,$d3
+ ) = map("r$_",(7..11,28..31));
+my $mask = "r0";
+my $FRAME = (6+4)*$SIZE_T;
+
+$code.=<<___;
+.globl .poly1305_emit_fpu
+.align 4
+.poly1305_emit_fpu:
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ $PUSH r28,`$FRAME-$SIZE_T*4`($sp)
+ $PUSH r29,`$FRAME-$SIZE_T*3`($sp)
+ $PUSH r30,`$FRAME-$SIZE_T*2`($sp)
+ $PUSH r31,`$FRAME-$SIZE_T*1`($sp)
+ $PUSH r0,`$FRAME+$LRSAVE`($sp)
+
+ lwz $d0,`8*0+(0^$LITTLE_ENDIAN)`($ctx) # load hash
+ lwz $h0,`8*0+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d1,`8*1+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h1,`8*1+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d2,`8*2+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h2,`8*2+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d3,`8*3+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h3,`8*3+(4^$LITTLE_ENDIAN)`($ctx)
+
+ lis $mask,0xfff0
+ andc $d0,$d0,$mask # mask exponent
+ andc $d1,$d1,$mask
+ andc $d2,$d2,$mask
+ andc $d3,$d3,$mask # can be partially reduced...
+ li $mask,3
+
+ srwi $padbit,$d3,2 # ... so reduce
+ and $h4,$d3,$mask
+ andc $d3,$d3,$mask
+ add $d3,$d3,$padbit
+___
+ if ($SIZE_T==4) {
+$code.=<<___;
+ addc $h0,$h0,$d3
+ adde $h1,$h1,$d0
+ adde $h2,$h2,$d1
+ adde $h3,$h3,$d2
+ addze $h4,$h4
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h1
+ addze $d2,$h2
+ addze $d3,$h3
+ addze $mask,$h4
+
+ srwi $mask,$mask,2 # did it carry/borrow?
+ neg $mask,$mask
+ srawi $mask,$mask,31 # mask
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h1,$h1,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ lwz $d0,0($nonce) # load nonce
+ andc $h2,$h2,$mask
+ and $d2,$d2,$mask
+ or $h1,$h1,$d1
+ lwz $d1,4($nonce)
+ andc $h3,$h3,$mask
+ and $d3,$d3,$mask
+ or $h2,$h2,$d2
+ lwz $d2,8($nonce)
+ or $h3,$h3,$d3
+ lwz $d3,12($nonce)
+
+ addc $h0,$h0,$d0 # accumulate nonce
+ adde $h1,$h1,$d1
+ adde $h2,$h2,$d2
+ adde $h3,$h3,$d3
+___
+ } else {
+$code.=<<___;
+ add $h0,$h0,$d3
+ add $h1,$h1,$d0
+ add $h2,$h2,$d1
+ add $h3,$h3,$d2
+
+ srdi $d0,$h0,32
+ add $h1,$h1,$d0
+ srdi $d1,$h1,32
+ add $h2,$h2,$d1
+ srdi $d2,$h2,32
+ add $h3,$h3,$d2
+ srdi $d3,$h3,32
+ add $h4,$h4,$d3
+
+ insrdi $h0,$h1,32,0
+ insrdi $h2,$h3,32,0
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h2
+ addze $d2,$h4
+
+ srdi $mask,$d2,2 # did it carry/borrow?
+ neg $mask,$mask
+ sradi $mask,$mask,63 # mask
+ ld $d2,0($nonce) # load nonce
+ ld $d3,8($nonce)
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h2,$h2,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ or $h2,$h2,$d1
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ rotldi $d2,$d2,32 # flip nonce words
+ rotldi $d3,$d3,32
+___
+$code.=<<___;
+ addc $h0,$h0,$d2 # accumulate nonce
+ adde $h2,$h2,$d3
+
+ srdi $h1,$h0,32
+ srdi $h3,$h2,32
+___
+ }
+$code.=<<___ if ($LITTLE_ENDIAN);
+ stw $h0,0($mac) # write result
+ stw $h1,4($mac)
+ stw $h2,8($mac)
+ stw $h3,12($mac)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $d1,4
+ stwbrx $h0,0,$mac # write result
+ li $d2,8
+ stwbrx $h1,$d1,$mac
+ li $d3,12
+ stwbrx $h2,$d2,$mac
+ stwbrx $h3,$d3,$mac
+___
+$code.=<<___;
+ $POP r28,`$FRAME-$SIZE_T*4`($sp)
+ $POP r29,`$FRAME-$SIZE_T*3`($sp)
+ $POP r30,`$FRAME-$SIZE_T*2`($sp)
+ $POP r31,`$FRAME-$SIZE_T*1`($sp)
+ addi $sp,$sp,$FRAME
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,4,3,0
+.size .poly1305_emit_fpu,.-.poly1305_emit_fpu
+___
+}
+# Ugly hack here, because PPC assembler syntax seem to vary too
+# much from platforms to platform...
+$code.=<<___;
+.align 6
+LPICmeup:
+ mflr r0
+ bcl 20,31,\$+4
+ mflr $len # vvvvvv "distance" between . and 1st data entry
+ addi $len,$len,`64-8` # borrow $len
+ mtlr r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+ .space `64-9*4`
+
+.quad 0x4330000000000000 # 2^(52+0)
+.quad 0x4530000000000000 # 2^(52+32)
+.quad 0x4730000000000000 # 2^(52+64)
+.quad 0x4930000000000000 # 2^(52+96)
+.quad 0x4b50000000000000 # 2^(52+130)
+
+.quad 0x37f4000000000000 # 5/2^130
+
+.quad 0x4430000000000000 # 2^(52+16+0)
+.quad 0x4630000000000000 # 2^(52+16+32)
+.quad 0x4830000000000000 # 2^(52+16+64)
+.quad 0x4a30000000000000 # 2^(52+16+96)
+.quad 0x3e30000000000000 # 2^(52+16+0-96)
+.quad 0x4030000000000000 # 2^(52+16+32-96)
+.quad 0x4230000000000000 # 2^(52+16+64-96)
+
+.quad 0x0000000000000001 # fpscr: truncate, no exceptions
+.asciz "Poly1305 for PPC FPU, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT or die "error closing STDOUT: $!";