3070 lines
69 KiB
Raku
Executable file
3070 lines
69 KiB
Raku
Executable file
#!/usr/bin/env perl
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##############################################################################
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# #
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# Copyright 2014 Intel Corporation #
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# #
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# Licensed under the Apache License, Version 2.0 (the "License"); #
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# you may not use this file except in compliance with the License. #
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# You may obtain a copy of the License at #
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# #
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# http://www.apache.org/licenses/LICENSE-2.0 #
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# #
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# Unless required by applicable law or agreed to in writing, software #
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# distributed under the License is distributed on an "AS IS" BASIS, #
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
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# See the License for the specific language governing permissions and #
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# limitations under the License. #
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# #
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##############################################################################
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# #
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# Developers and authors: #
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# Shay Gueron (1, 2), and Vlad Krasnov (1) #
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# (1) Intel Corporation, Israel Development Center #
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# (2) University of Haifa #
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# Reference: #
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# S.Gueron and V.Krasnov, "Fast Prime Field Elliptic Curve Cryptography with#
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# 256 Bit Primes" #
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# #
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##############################################################################
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# Further optimization by <appro@openssl.org>:
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#
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# this/original with/without -DECP_NISTZ256_ASM(*)
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# Opteron +12-49% +110-150%
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# Bulldozer +14-45% +175-210%
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# P4 +18-46% n/a :-(
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# Westmere +12-34% +80-87%
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# Sandy Bridge +9-35% +110-120%
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# Ivy Bridge +9-35% +110-125%
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# Haswell +8-37% +140-160%
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# Broadwell +18-58% +145-210%
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# Atom +15-50% +130-180%
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# VIA Nano +43-160% +300-480%
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#
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# (*) "without -DECP_NISTZ256_ASM" refers to build with
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# "enable-ec_nistp_64_gcc_128";
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#
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# Ranges denote minimum and maximum improvement coefficients depending
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# on benchmark. Lower coefficients are for ECDSA sign, relatively fastest
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# server-side operation. Keep in mind that +100% means 2x improvement.
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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open OUT,"| \"$^X\" $xlate $flavour $output";
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*STDOUT=*OUT;
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if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
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=~ /GNU assembler version ([2-9]\.[0-9]+)/) {
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$avx = ($1>=2.19) + ($1>=2.22);
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$addx = ($1>=2.23);
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}
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if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
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`nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
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$avx = ($1>=2.09) + ($1>=2.10);
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$addx = ($1>=2.10);
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}
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if (!$addx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
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`ml64 2>&1` =~ /Version ([0-9]+)\./) {
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$avx = ($1>=10) + ($1>=11);
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$addx = ($1>=12);
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}
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if (!$addx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9])\.([0-9]+)/) {
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my $ver = $2 + $3/100.0; # 3.1->3.01, 3.10->3.10
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$avx = ($ver>=3.0) + ($ver>=3.01);
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$addx = ($ver>=3.03);
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}
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$code.=<<___;
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.text
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.extern OPENSSL_ia32cap_P
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# The polynomial
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.align 64
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.Lpoly:
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.quad 0xffffffffffffffff, 0x00000000ffffffff, 0x0000000000000000, 0xffffffff00000001
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# 2^512 mod P precomputed for NIST P256 polynomial
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.LRR:
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.quad 0x0000000000000003, 0xfffffffbffffffff, 0xfffffffffffffffe, 0x00000004fffffffd
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.LOne:
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.long 1,1,1,1,1,1,1,1
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.LTwo:
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.long 2,2,2,2,2,2,2,2
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.LThree:
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.long 3,3,3,3,3,3,3,3
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.LONE_mont:
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.quad 0x0000000000000001, 0xffffffff00000000, 0xffffffffffffffff, 0x00000000fffffffe
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___
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{
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################################################################################
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# void ecp_nistz256_mul_by_2(uint64_t res[4], uint64_t a[4]);
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my ($a0,$a1,$a2,$a3)=map("%r$_",(8..11));
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my ($t0,$t1,$t2,$t3,$t4)=("%rax","%rdx","%rcx","%r12","%r13");
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my ($r_ptr,$a_ptr,$b_ptr)=("%rdi","%rsi","%rdx");
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$code.=<<___;
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.globl ecp_nistz256_mul_by_2
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.type ecp_nistz256_mul_by_2,\@function,2
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.align 64
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ecp_nistz256_mul_by_2:
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push %r12
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push %r13
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mov 8*0($a_ptr), $a0
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mov 8*1($a_ptr), $a1
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add $a0, $a0 # a0:a3+a0:a3
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mov 8*2($a_ptr), $a2
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adc $a1, $a1
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mov 8*3($a_ptr), $a3
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lea .Lpoly(%rip), $a_ptr
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mov $a0, $t0
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adc $a2, $a2
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adc $a3, $a3
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mov $a1, $t1
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sbb $t4, $t4
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sub 8*0($a_ptr), $a0
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mov $a2, $t2
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sbb 8*1($a_ptr), $a1
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sbb 8*2($a_ptr), $a2
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mov $a3, $t3
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sbb 8*3($a_ptr), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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mov $a0, 8*0($r_ptr)
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cmovz $t2, $a2
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mov $a1, 8*1($r_ptr)
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cmovz $t3, $a3
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_mul_by_2,.-ecp_nistz256_mul_by_2
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################################################################################
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# void ecp_nistz256_div_by_2(uint64_t res[4], uint64_t a[4]);
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.globl ecp_nistz256_div_by_2
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.type ecp_nistz256_div_by_2,\@function,2
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.align 32
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ecp_nistz256_div_by_2:
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push %r12
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push %r13
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mov 8*0($a_ptr), $a0
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mov 8*1($a_ptr), $a1
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mov 8*2($a_ptr), $a2
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mov $a0, $t0
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mov 8*3($a_ptr), $a3
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lea .Lpoly(%rip), $a_ptr
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mov $a1, $t1
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xor $t4, $t4
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add 8*0($a_ptr), $a0
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mov $a2, $t2
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adc 8*1($a_ptr), $a1
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adc 8*2($a_ptr), $a2
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mov $a3, $t3
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adc 8*3($a_ptr), $a3
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adc \$0, $t4
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xor $a_ptr, $a_ptr # borrow $a_ptr
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test \$1, $t0
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cmovz $t0, $a0
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cmovz $t1, $a1
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cmovz $t2, $a2
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cmovz $t3, $a3
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cmovz $a_ptr, $t4
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mov $a1, $t0 # a0:a3>>1
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shr \$1, $a0
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shl \$63, $t0
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mov $a2, $t1
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shr \$1, $a1
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or $t0, $a0
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shl \$63, $t1
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mov $a3, $t2
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shr \$1, $a2
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or $t1, $a1
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shl \$63, $t2
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shr \$1, $a3
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shl \$63, $t4
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or $t2, $a2
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or $t4, $a3
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mov $a0, 8*0($r_ptr)
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mov $a1, 8*1($r_ptr)
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_div_by_2,.-ecp_nistz256_div_by_2
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################################################################################
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# void ecp_nistz256_mul_by_3(uint64_t res[4], uint64_t a[4]);
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.globl ecp_nistz256_mul_by_3
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.type ecp_nistz256_mul_by_3,\@function,2
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.align 32
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ecp_nistz256_mul_by_3:
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push %r12
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push %r13
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mov 8*0($a_ptr), $a0
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xor $t4, $t4
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mov 8*1($a_ptr), $a1
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add $a0, $a0 # a0:a3+a0:a3
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mov 8*2($a_ptr), $a2
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adc $a1, $a1
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mov 8*3($a_ptr), $a3
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mov $a0, $t0
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adc $a2, $a2
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adc $a3, $a3
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mov $a1, $t1
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adc \$0, $t4
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sub \$-1, $a0
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mov $a2, $t2
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sbb .Lpoly+8*1(%rip), $a1
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sbb \$0, $a2
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mov $a3, $t3
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sbb .Lpoly+8*3(%rip), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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cmovz $t2, $a2
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cmovz $t3, $a3
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xor $t4, $t4
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add 8*0($a_ptr), $a0 # a0:a3+=a_ptr[0:3]
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adc 8*1($a_ptr), $a1
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mov $a0, $t0
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adc 8*2($a_ptr), $a2
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adc 8*3($a_ptr), $a3
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mov $a1, $t1
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adc \$0, $t4
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sub \$-1, $a0
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mov $a2, $t2
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sbb .Lpoly+8*1(%rip), $a1
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sbb \$0, $a2
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mov $a3, $t3
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sbb .Lpoly+8*3(%rip), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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mov $a0, 8*0($r_ptr)
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cmovz $t2, $a2
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mov $a1, 8*1($r_ptr)
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cmovz $t3, $a3
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_mul_by_3,.-ecp_nistz256_mul_by_3
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################################################################################
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# void ecp_nistz256_add(uint64_t res[4], uint64_t a[4], uint64_t b[4]);
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.globl ecp_nistz256_add
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.type ecp_nistz256_add,\@function,3
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.align 32
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ecp_nistz256_add:
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push %r12
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push %r13
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mov 8*0($a_ptr), $a0
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xor $t4, $t4
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mov 8*1($a_ptr), $a1
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mov 8*2($a_ptr), $a2
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mov 8*3($a_ptr), $a3
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lea .Lpoly(%rip), $a_ptr
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add 8*0($b_ptr), $a0
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adc 8*1($b_ptr), $a1
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mov $a0, $t0
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adc 8*2($b_ptr), $a2
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adc 8*3($b_ptr), $a3
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mov $a1, $t1
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adc \$0, $t4
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sub 8*0($a_ptr), $a0
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mov $a2, $t2
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sbb 8*1($a_ptr), $a1
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sbb 8*2($a_ptr), $a2
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mov $a3, $t3
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sbb 8*3($a_ptr), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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mov $a0, 8*0($r_ptr)
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cmovz $t2, $a2
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mov $a1, 8*1($r_ptr)
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cmovz $t3, $a3
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_add,.-ecp_nistz256_add
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################################################################################
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# void ecp_nistz256_sub(uint64_t res[4], uint64_t a[4], uint64_t b[4]);
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.globl ecp_nistz256_sub
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.type ecp_nistz256_sub,\@function,3
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.align 32
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ecp_nistz256_sub:
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push %r12
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push %r13
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mov 8*0($a_ptr), $a0
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xor $t4, $t4
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mov 8*1($a_ptr), $a1
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mov 8*2($a_ptr), $a2
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mov 8*3($a_ptr), $a3
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lea .Lpoly(%rip), $a_ptr
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sub 8*0($b_ptr), $a0
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sbb 8*1($b_ptr), $a1
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mov $a0, $t0
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sbb 8*2($b_ptr), $a2
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sbb 8*3($b_ptr), $a3
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mov $a1, $t1
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sbb \$0, $t4
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add 8*0($a_ptr), $a0
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mov $a2, $t2
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adc 8*1($a_ptr), $a1
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adc 8*2($a_ptr), $a2
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mov $a3, $t3
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adc 8*3($a_ptr), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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mov $a0, 8*0($r_ptr)
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cmovz $t2, $a2
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mov $a1, 8*1($r_ptr)
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cmovz $t3, $a3
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_sub,.-ecp_nistz256_sub
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################################################################################
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# void ecp_nistz256_neg(uint64_t res[4], uint64_t a[4]);
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.globl ecp_nistz256_neg
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.type ecp_nistz256_neg,\@function,2
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.align 32
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ecp_nistz256_neg:
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push %r12
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push %r13
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xor $a0, $a0
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xor $a1, $a1
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xor $a2, $a2
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xor $a3, $a3
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xor $t4, $t4
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sub 8*0($a_ptr), $a0
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sbb 8*1($a_ptr), $a1
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sbb 8*2($a_ptr), $a2
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mov $a0, $t0
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sbb 8*3($a_ptr), $a3
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lea .Lpoly(%rip), $a_ptr
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mov $a1, $t1
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sbb \$0, $t4
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add 8*0($a_ptr), $a0
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mov $a2, $t2
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adc 8*1($a_ptr), $a1
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adc 8*2($a_ptr), $a2
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mov $a3, $t3
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adc 8*3($a_ptr), $a3
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test $t4, $t4
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cmovz $t0, $a0
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cmovz $t1, $a1
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mov $a0, 8*0($r_ptr)
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cmovz $t2, $a2
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mov $a1, 8*1($r_ptr)
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cmovz $t3, $a3
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mov $a2, 8*2($r_ptr)
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mov $a3, 8*3($r_ptr)
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pop %r13
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pop %r12
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ret
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.size ecp_nistz256_neg,.-ecp_nistz256_neg
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___
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}
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{
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my ($r_ptr,$a_ptr,$b_org,$b_ptr)=("%rdi","%rsi","%rdx","%rbx");
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my ($acc0,$acc1,$acc2,$acc3,$acc4,$acc5,$acc6,$acc7)=map("%r$_",(8..15));
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my ($t0,$t1,$t2,$t3,$t4)=("%rcx","%rbp","%rbx","%rdx","%rax");
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my ($poly1,$poly3)=($acc6,$acc7);
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$code.=<<___;
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################################################################################
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# void ecp_nistz256_to_mont(
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# uint64_t res[4],
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# uint64_t in[4]);
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.globl ecp_nistz256_to_mont
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.type ecp_nistz256_to_mont,\@function,2
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.align 32
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ecp_nistz256_to_mont:
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___
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$code.=<<___ if ($addx);
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mov \$0x80100, %ecx
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and OPENSSL_ia32cap_P+8(%rip), %ecx
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___
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$code.=<<___;
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lea .LRR(%rip), $b_org
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jmp .Lmul_mont
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.size ecp_nistz256_to_mont,.-ecp_nistz256_to_mont
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################################################################################
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# void ecp_nistz256_mul_mont(
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# uint64_t res[4],
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# uint64_t a[4],
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# uint64_t b[4]);
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|
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.globl ecp_nistz256_mul_mont
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.type ecp_nistz256_mul_mont,\@function,3
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|
.align 32
|
|
ecp_nistz256_mul_mont:
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
mov \$0x80100, %ecx
|
|
and OPENSSL_ia32cap_P+8(%rip), %ecx
|
|
___
|
|
$code.=<<___;
|
|
.Lmul_mont:
|
|
push %rbp
|
|
push %rbx
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
cmp \$0x80100, %ecx
|
|
je .Lmul_montx
|
|
___
|
|
$code.=<<___;
|
|
mov $b_org, $b_ptr
|
|
mov 8*0($b_org), %rax
|
|
mov 8*0($a_ptr), $acc1
|
|
mov 8*1($a_ptr), $acc2
|
|
mov 8*2($a_ptr), $acc3
|
|
mov 8*3($a_ptr), $acc4
|
|
|
|
call __ecp_nistz256_mul_montq
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
jmp .Lmul_mont_done
|
|
|
|
.align 32
|
|
.Lmul_montx:
|
|
mov $b_org, $b_ptr
|
|
mov 8*0($b_org), %rdx
|
|
mov 8*0($a_ptr), $acc1
|
|
mov 8*1($a_ptr), $acc2
|
|
mov 8*2($a_ptr), $acc3
|
|
mov 8*3($a_ptr), $acc4
|
|
lea -128($a_ptr), $a_ptr # control u-op density
|
|
|
|
call __ecp_nistz256_mul_montx
|
|
___
|
|
$code.=<<___;
|
|
.Lmul_mont_done:
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbx
|
|
pop %rbp
|
|
ret
|
|
.size ecp_nistz256_mul_mont,.-ecp_nistz256_mul_mont
|
|
|
|
.type __ecp_nistz256_mul_montq,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_mul_montq:
|
|
########################################################################
|
|
# Multiply a by b[0]
|
|
mov %rax, $t1
|
|
mulq $acc1
|
|
mov .Lpoly+8*1(%rip),$poly1
|
|
mov %rax, $acc0
|
|
mov $t1, %rax
|
|
mov %rdx, $acc1
|
|
|
|
mulq $acc2
|
|
mov .Lpoly+8*3(%rip),$poly3
|
|
add %rax, $acc1
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $acc2
|
|
|
|
mulq $acc3
|
|
add %rax, $acc2
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $acc3
|
|
|
|
mulq $acc4
|
|
add %rax, $acc3
|
|
mov $acc0, %rax
|
|
adc \$0, %rdx
|
|
xor $acc5, $acc5
|
|
mov %rdx, $acc4
|
|
|
|
########################################################################
|
|
# First reduction step
|
|
# Basically now we want to multiply acc[0] by p256,
|
|
# and add the result to the acc.
|
|
# Due to the special form of p256 we do some optimizations
|
|
#
|
|
# acc[0] x p256[0..1] = acc[0] x 2^96 - acc[0]
|
|
# then we add acc[0] and get acc[0] x 2^96
|
|
|
|
mov $acc0, $t1
|
|
shl \$32, $acc0
|
|
mulq $poly3
|
|
shr \$32, $t1
|
|
add $acc0, $acc1 # +=acc[0]<<96
|
|
adc $t1, $acc2
|
|
adc %rax, $acc3
|
|
mov 8*1($b_ptr), %rax
|
|
adc %rdx, $acc4
|
|
adc \$0, $acc5
|
|
xor $acc0, $acc0
|
|
|
|
########################################################################
|
|
# Multiply by b[1]
|
|
mov %rax, $t1
|
|
mulq 8*0($a_ptr)
|
|
add %rax, $acc1
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*1($a_ptr)
|
|
add $t0, $acc2
|
|
adc \$0, %rdx
|
|
add %rax, $acc2
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*2($a_ptr)
|
|
add $t0, $acc3
|
|
adc \$0, %rdx
|
|
add %rax, $acc3
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*3($a_ptr)
|
|
add $t0, $acc4
|
|
adc \$0, %rdx
|
|
add %rax, $acc4
|
|
mov $acc1, %rax
|
|
adc %rdx, $acc5
|
|
adc \$0, $acc0
|
|
|
|
########################################################################
|
|
# Second reduction step
|
|
mov $acc1, $t1
|
|
shl \$32, $acc1
|
|
mulq $poly3
|
|
shr \$32, $t1
|
|
add $acc1, $acc2
|
|
adc $t1, $acc3
|
|
adc %rax, $acc4
|
|
mov 8*2($b_ptr), %rax
|
|
adc %rdx, $acc5
|
|
adc \$0, $acc0
|
|
xor $acc1, $acc1
|
|
|
|
########################################################################
|
|
# Multiply by b[2]
|
|
mov %rax, $t1
|
|
mulq 8*0($a_ptr)
|
|
add %rax, $acc2
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*1($a_ptr)
|
|
add $t0, $acc3
|
|
adc \$0, %rdx
|
|
add %rax, $acc3
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*2($a_ptr)
|
|
add $t0, $acc4
|
|
adc \$0, %rdx
|
|
add %rax, $acc4
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*3($a_ptr)
|
|
add $t0, $acc5
|
|
adc \$0, %rdx
|
|
add %rax, $acc5
|
|
mov $acc2, %rax
|
|
adc %rdx, $acc0
|
|
adc \$0, $acc1
|
|
|
|
########################################################################
|
|
# Third reduction step
|
|
mov $acc2, $t1
|
|
shl \$32, $acc2
|
|
mulq $poly3
|
|
shr \$32, $t1
|
|
add $acc2, $acc3
|
|
adc $t1, $acc4
|
|
adc %rax, $acc5
|
|
mov 8*3($b_ptr), %rax
|
|
adc %rdx, $acc0
|
|
adc \$0, $acc1
|
|
xor $acc2, $acc2
|
|
|
|
########################################################################
|
|
# Multiply by b[3]
|
|
mov %rax, $t1
|
|
mulq 8*0($a_ptr)
|
|
add %rax, $acc3
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*1($a_ptr)
|
|
add $t0, $acc4
|
|
adc \$0, %rdx
|
|
add %rax, $acc4
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*2($a_ptr)
|
|
add $t0, $acc5
|
|
adc \$0, %rdx
|
|
add %rax, $acc5
|
|
mov $t1, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq 8*3($a_ptr)
|
|
add $t0, $acc0
|
|
adc \$0, %rdx
|
|
add %rax, $acc0
|
|
mov $acc3, %rax
|
|
adc %rdx, $acc1
|
|
adc \$0, $acc2
|
|
|
|
########################################################################
|
|
# Final reduction step
|
|
mov $acc3, $t1
|
|
shl \$32, $acc3
|
|
mulq $poly3
|
|
shr \$32, $t1
|
|
add $acc3, $acc4
|
|
adc $t1, $acc5
|
|
mov $acc4, $t0
|
|
adc %rax, $acc0
|
|
adc %rdx, $acc1
|
|
mov $acc5, $t1
|
|
adc \$0, $acc2
|
|
|
|
########################################################################
|
|
# Branch-less conditional subtraction of P
|
|
sub \$-1, $acc4 # .Lpoly[0]
|
|
mov $acc0, $t2
|
|
sbb $poly1, $acc5 # .Lpoly[1]
|
|
sbb \$0, $acc0 # .Lpoly[2]
|
|
mov $acc1, $t3
|
|
sbb $poly3, $acc1 # .Lpoly[3]
|
|
sbb \$0, $acc2
|
|
|
|
cmovc $t0, $acc4
|
|
cmovc $t1, $acc5
|
|
mov $acc4, 8*0($r_ptr)
|
|
cmovc $t2, $acc0
|
|
mov $acc5, 8*1($r_ptr)
|
|
cmovc $t3, $acc1
|
|
mov $acc0, 8*2($r_ptr)
|
|
mov $acc1, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_mul_montq,.-__ecp_nistz256_mul_montq
|
|
|
|
################################################################################
|
|
# void ecp_nistz256_sqr_mont(
|
|
# uint64_t res[4],
|
|
# uint64_t a[4]);
|
|
|
|
# we optimize the square according to S.Gueron and V.Krasnov,
|
|
# "Speeding up Big-Number Squaring"
|
|
.globl ecp_nistz256_sqr_mont
|
|
.type ecp_nistz256_sqr_mont,\@function,2
|
|
.align 32
|
|
ecp_nistz256_sqr_mont:
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
mov \$0x80100, %ecx
|
|
and OPENSSL_ia32cap_P+8(%rip), %ecx
|
|
___
|
|
$code.=<<___;
|
|
push %rbp
|
|
push %rbx
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
cmp \$0x80100, %ecx
|
|
je .Lsqr_montx
|
|
___
|
|
$code.=<<___;
|
|
mov 8*0($a_ptr), %rax
|
|
mov 8*1($a_ptr), $acc6
|
|
mov 8*2($a_ptr), $acc7
|
|
mov 8*3($a_ptr), $acc0
|
|
|
|
call __ecp_nistz256_sqr_montq
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
jmp .Lsqr_mont_done
|
|
|
|
.align 32
|
|
.Lsqr_montx:
|
|
mov 8*0($a_ptr), %rdx
|
|
mov 8*1($a_ptr), $acc6
|
|
mov 8*2($a_ptr), $acc7
|
|
mov 8*3($a_ptr), $acc0
|
|
lea -128($a_ptr), $a_ptr # control u-op density
|
|
|
|
call __ecp_nistz256_sqr_montx
|
|
___
|
|
$code.=<<___;
|
|
.Lsqr_mont_done:
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbx
|
|
pop %rbp
|
|
ret
|
|
.size ecp_nistz256_sqr_mont,.-ecp_nistz256_sqr_mont
|
|
|
|
.type __ecp_nistz256_sqr_montq,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_sqr_montq:
|
|
mov %rax, $acc5
|
|
mulq $acc6 # a[1]*a[0]
|
|
mov %rax, $acc1
|
|
mov $acc7, %rax
|
|
mov %rdx, $acc2
|
|
|
|
mulq $acc5 # a[0]*a[2]
|
|
add %rax, $acc2
|
|
mov $acc0, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $acc3
|
|
|
|
mulq $acc5 # a[0]*a[3]
|
|
add %rax, $acc3
|
|
mov $acc7, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $acc4
|
|
|
|
#################################
|
|
mulq $acc6 # a[1]*a[2]
|
|
add %rax, $acc3
|
|
mov $acc0, %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t1
|
|
|
|
mulq $acc6 # a[1]*a[3]
|
|
add %rax, $acc4
|
|
mov $acc0, %rax
|
|
adc \$0, %rdx
|
|
add $t1, $acc4
|
|
mov %rdx, $acc5
|
|
adc \$0, $acc5
|
|
|
|
#################################
|
|
mulq $acc7 # a[2]*a[3]
|
|
xor $acc7, $acc7
|
|
add %rax, $acc5
|
|
mov 8*0($a_ptr), %rax
|
|
mov %rdx, $acc6
|
|
adc \$0, $acc6
|
|
|
|
add $acc1, $acc1 # acc1:6<<1
|
|
adc $acc2, $acc2
|
|
adc $acc3, $acc3
|
|
adc $acc4, $acc4
|
|
adc $acc5, $acc5
|
|
adc $acc6, $acc6
|
|
adc \$0, $acc7
|
|
|
|
mulq %rax
|
|
mov %rax, $acc0
|
|
mov 8*1($a_ptr), %rax
|
|
mov %rdx, $t0
|
|
|
|
mulq %rax
|
|
add $t0, $acc1
|
|
adc %rax, $acc2
|
|
mov 8*2($a_ptr), %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq %rax
|
|
add $t0, $acc3
|
|
adc %rax, $acc4
|
|
mov 8*3($a_ptr), %rax
|
|
adc \$0, %rdx
|
|
mov %rdx, $t0
|
|
|
|
mulq %rax
|
|
add $t0, $acc5
|
|
adc %rax, $acc6
|
|
mov $acc0, %rax
|
|
adc %rdx, $acc7
|
|
|
|
mov .Lpoly+8*1(%rip), $a_ptr
|
|
mov .Lpoly+8*3(%rip), $t1
|
|
|
|
##########################################
|
|
# Now the reduction
|
|
# First iteration
|
|
mov $acc0, $t0
|
|
shl \$32, $acc0
|
|
mulq $t1
|
|
shr \$32, $t0
|
|
add $acc0, $acc1 # +=acc[0]<<96
|
|
adc $t0, $acc2
|
|
adc %rax, $acc3
|
|
mov $acc1, %rax
|
|
adc \$0, %rdx
|
|
|
|
##########################################
|
|
# Second iteration
|
|
mov $acc1, $t0
|
|
shl \$32, $acc1
|
|
mov %rdx, $acc0
|
|
mulq $t1
|
|
shr \$32, $t0
|
|
add $acc1, $acc2
|
|
adc $t0, $acc3
|
|
adc %rax, $acc0
|
|
mov $acc2, %rax
|
|
adc \$0, %rdx
|
|
|
|
##########################################
|
|
# Third iteration
|
|
mov $acc2, $t0
|
|
shl \$32, $acc2
|
|
mov %rdx, $acc1
|
|
mulq $t1
|
|
shr \$32, $t0
|
|
add $acc2, $acc3
|
|
adc $t0, $acc0
|
|
adc %rax, $acc1
|
|
mov $acc3, %rax
|
|
adc \$0, %rdx
|
|
|
|
###########################################
|
|
# Last iteration
|
|
mov $acc3, $t0
|
|
shl \$32, $acc3
|
|
mov %rdx, $acc2
|
|
mulq $t1
|
|
shr \$32, $t0
|
|
add $acc3, $acc0
|
|
adc $t0, $acc1
|
|
adc %rax, $acc2
|
|
adc \$0, %rdx
|
|
xor $acc3, $acc3
|
|
|
|
############################################
|
|
# Add the rest of the acc
|
|
add $acc0, $acc4
|
|
adc $acc1, $acc5
|
|
mov $acc4, $acc0
|
|
adc $acc2, $acc6
|
|
adc %rdx, $acc7
|
|
mov $acc5, $acc1
|
|
adc \$0, $acc3
|
|
|
|
sub \$-1, $acc4 # .Lpoly[0]
|
|
mov $acc6, $acc2
|
|
sbb $a_ptr, $acc5 # .Lpoly[1]
|
|
sbb \$0, $acc6 # .Lpoly[2]
|
|
mov $acc7, $t0
|
|
sbb $t1, $acc7 # .Lpoly[3]
|
|
sbb \$0, $acc3
|
|
|
|
cmovc $acc0, $acc4
|
|
cmovc $acc1, $acc5
|
|
mov $acc4, 8*0($r_ptr)
|
|
cmovc $acc2, $acc6
|
|
mov $acc5, 8*1($r_ptr)
|
|
cmovc $t0, $acc7
|
|
mov $acc6, 8*2($r_ptr)
|
|
mov $acc7, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_sqr_montq,.-__ecp_nistz256_sqr_montq
|
|
___
|
|
|
|
if ($addx) {
|
|
$code.=<<___;
|
|
.type __ecp_nistz256_mul_montx,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_mul_montx:
|
|
########################################################################
|
|
# Multiply by b[0]
|
|
mulx $acc1, $acc0, $acc1
|
|
mulx $acc2, $t0, $acc2
|
|
mov \$32, $poly1
|
|
xor $acc5, $acc5 # cf=0
|
|
mulx $acc3, $t1, $acc3
|
|
mov .Lpoly+8*3(%rip), $poly3
|
|
adc $t0, $acc1
|
|
mulx $acc4, $t0, $acc4
|
|
mov $acc0, %rdx
|
|
adc $t1, $acc2
|
|
shlx $poly1,$acc0,$t1
|
|
adc $t0, $acc3
|
|
shrx $poly1,$acc0,$t0
|
|
adc \$0, $acc4
|
|
|
|
########################################################################
|
|
# First reduction step
|
|
add $t1, $acc1
|
|
adc $t0, $acc2
|
|
|
|
mulx $poly3, $t0, $t1
|
|
mov 8*1($b_ptr), %rdx
|
|
adc $t0, $acc3
|
|
adc $t1, $acc4
|
|
adc \$0, $acc5
|
|
xor $acc0, $acc0 # $acc0=0,cf=0,of=0
|
|
|
|
########################################################################
|
|
# Multiply by b[1]
|
|
mulx 8*0+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc1
|
|
adox $t1, $acc2
|
|
|
|
mulx 8*1+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc2
|
|
adox $t1, $acc3
|
|
|
|
mulx 8*2+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc3
|
|
adox $t1, $acc4
|
|
|
|
mulx 8*3+128($a_ptr), $t0, $t1
|
|
mov $acc1, %rdx
|
|
adcx $t0, $acc4
|
|
shlx $poly1, $acc1, $t0
|
|
adox $t1, $acc5
|
|
shrx $poly1, $acc1, $t1
|
|
|
|
adcx $acc0, $acc5
|
|
adox $acc0, $acc0
|
|
adc \$0, $acc0
|
|
|
|
########################################################################
|
|
# Second reduction step
|
|
add $t0, $acc2
|
|
adc $t1, $acc3
|
|
|
|
mulx $poly3, $t0, $t1
|
|
mov 8*2($b_ptr), %rdx
|
|
adc $t0, $acc4
|
|
adc $t1, $acc5
|
|
adc \$0, $acc0
|
|
xor $acc1 ,$acc1 # $acc1=0,cf=0,of=0
|
|
|
|
########################################################################
|
|
# Multiply by b[2]
|
|
mulx 8*0+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc2
|
|
adox $t1, $acc3
|
|
|
|
mulx 8*1+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc3
|
|
adox $t1, $acc4
|
|
|
|
mulx 8*2+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc4
|
|
adox $t1, $acc5
|
|
|
|
mulx 8*3+128($a_ptr), $t0, $t1
|
|
mov $acc2, %rdx
|
|
adcx $t0, $acc5
|
|
shlx $poly1, $acc2, $t0
|
|
adox $t1, $acc0
|
|
shrx $poly1, $acc2, $t1
|
|
|
|
adcx $acc1, $acc0
|
|
adox $acc1, $acc1
|
|
adc \$0, $acc1
|
|
|
|
########################################################################
|
|
# Third reduction step
|
|
add $t0, $acc3
|
|
adc $t1, $acc4
|
|
|
|
mulx $poly3, $t0, $t1
|
|
mov 8*3($b_ptr), %rdx
|
|
adc $t0, $acc5
|
|
adc $t1, $acc0
|
|
adc \$0, $acc1
|
|
xor $acc2, $acc2 # $acc2=0,cf=0,of=0
|
|
|
|
########################################################################
|
|
# Multiply by b[3]
|
|
mulx 8*0+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc3
|
|
adox $t1, $acc4
|
|
|
|
mulx 8*1+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc4
|
|
adox $t1, $acc5
|
|
|
|
mulx 8*2+128($a_ptr), $t0, $t1
|
|
adcx $t0, $acc5
|
|
adox $t1, $acc0
|
|
|
|
mulx 8*3+128($a_ptr), $t0, $t1
|
|
mov $acc3, %rdx
|
|
adcx $t0, $acc0
|
|
shlx $poly1, $acc3, $t0
|
|
adox $t1, $acc1
|
|
shrx $poly1, $acc3, $t1
|
|
|
|
adcx $acc2, $acc1
|
|
adox $acc2, $acc2
|
|
adc \$0, $acc2
|
|
|
|
########################################################################
|
|
# Fourth reduction step
|
|
add $t0, $acc4
|
|
adc $t1, $acc5
|
|
|
|
mulx $poly3, $t0, $t1
|
|
mov $acc4, $t2
|
|
mov .Lpoly+8*1(%rip), $poly1
|
|
adc $t0, $acc0
|
|
mov $acc5, $t3
|
|
adc $t1, $acc1
|
|
adc \$0, $acc2
|
|
|
|
########################################################################
|
|
# Branch-less conditional subtraction of P
|
|
xor %eax, %eax
|
|
mov $acc0, $t0
|
|
sbb \$-1, $acc4 # .Lpoly[0]
|
|
sbb $poly1, $acc5 # .Lpoly[1]
|
|
sbb \$0, $acc0 # .Lpoly[2]
|
|
mov $acc1, $t1
|
|
sbb $poly3, $acc1 # .Lpoly[3]
|
|
sbb \$0, $acc2
|
|
|
|
cmovc $t2, $acc4
|
|
cmovc $t3, $acc5
|
|
mov $acc4, 8*0($r_ptr)
|
|
cmovc $t0, $acc0
|
|
mov $acc5, 8*1($r_ptr)
|
|
cmovc $t1, $acc1
|
|
mov $acc0, 8*2($r_ptr)
|
|
mov $acc1, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_mul_montx,.-__ecp_nistz256_mul_montx
|
|
|
|
.type __ecp_nistz256_sqr_montx,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_sqr_montx:
|
|
mulx $acc6, $acc1, $acc2 # a[0]*a[1]
|
|
mulx $acc7, $t0, $acc3 # a[0]*a[2]
|
|
xor %eax, %eax
|
|
adc $t0, $acc2
|
|
mulx $acc0, $t1, $acc4 # a[0]*a[3]
|
|
mov $acc6, %rdx
|
|
adc $t1, $acc3
|
|
adc \$0, $acc4
|
|
xor $acc5, $acc5 # $acc5=0,cf=0,of=0
|
|
|
|
#################################
|
|
mulx $acc7, $t0, $t1 # a[1]*a[2]
|
|
adcx $t0, $acc3
|
|
adox $t1, $acc4
|
|
|
|
mulx $acc0, $t0, $t1 # a[1]*a[3]
|
|
mov $acc7, %rdx
|
|
adcx $t0, $acc4
|
|
adox $t1, $acc5
|
|
adc \$0, $acc5
|
|
|
|
#################################
|
|
mulx $acc0, $t0, $acc6 # a[2]*a[3]
|
|
mov 8*0+128($a_ptr), %rdx
|
|
xor $acc7, $acc7 # $acc7=0,cf=0,of=0
|
|
adcx $acc1, $acc1 # acc1:6<<1
|
|
adox $t0, $acc5
|
|
adcx $acc2, $acc2
|
|
adox $acc7, $acc6 # of=0
|
|
|
|
mulx %rdx, $acc0, $t1
|
|
mov 8*1+128($a_ptr), %rdx
|
|
adcx $acc3, $acc3
|
|
adox $t1, $acc1
|
|
adcx $acc4, $acc4
|
|
mulx %rdx, $t0, $t4
|
|
mov 8*2+128($a_ptr), %rdx
|
|
adcx $acc5, $acc5
|
|
adox $t0, $acc2
|
|
adcx $acc6, $acc6
|
|
.byte 0x67
|
|
mulx %rdx, $t0, $t1
|
|
mov 8*3+128($a_ptr), %rdx
|
|
adox $t4, $acc3
|
|
adcx $acc7, $acc7
|
|
adox $t0, $acc4
|
|
mov \$32, $a_ptr
|
|
adox $t1, $acc5
|
|
.byte 0x67,0x67
|
|
mulx %rdx, $t0, $t4
|
|
mov $acc0, %rdx
|
|
adox $t0, $acc6
|
|
shlx $a_ptr, $acc0, $t0
|
|
adox $t4, $acc7
|
|
shrx $a_ptr, $acc0, $t4
|
|
mov .Lpoly+8*3(%rip), $t1
|
|
|
|
# reduction step 1
|
|
add $t0, $acc1
|
|
adc $t4, $acc2
|
|
|
|
mulx $t1, $t0, $acc0
|
|
mov $acc1, %rdx
|
|
adc $t0, $acc3
|
|
shlx $a_ptr, $acc1, $t0
|
|
adc \$0, $acc0
|
|
shrx $a_ptr, $acc1, $t4
|
|
|
|
# reduction step 2
|
|
add $t0, $acc2
|
|
adc $t4, $acc3
|
|
|
|
mulx $t1, $t0, $acc1
|
|
mov $acc2, %rdx
|
|
adc $t0, $acc0
|
|
shlx $a_ptr, $acc2, $t0
|
|
adc \$0, $acc1
|
|
shrx $a_ptr, $acc2, $t4
|
|
|
|
# reduction step 3
|
|
add $t0, $acc3
|
|
adc $t4, $acc0
|
|
|
|
mulx $t1, $t0, $acc2
|
|
mov $acc3, %rdx
|
|
adc $t0, $acc1
|
|
shlx $a_ptr, $acc3, $t0
|
|
adc \$0, $acc2
|
|
shrx $a_ptr, $acc3, $t4
|
|
|
|
# reduction step 4
|
|
add $t0, $acc0
|
|
adc $t4, $acc1
|
|
|
|
mulx $t1, $t0, $acc3
|
|
adc $t0, $acc2
|
|
adc \$0, $acc3
|
|
|
|
xor $t3, $t3 # cf=0
|
|
adc $acc0, $acc4 # accumulate upper half
|
|
mov .Lpoly+8*1(%rip), $a_ptr
|
|
adc $acc1, $acc5
|
|
mov $acc4, $acc0
|
|
adc $acc2, $acc6
|
|
adc $acc3, $acc7
|
|
mov $acc5, $acc1
|
|
adc \$0, $t3
|
|
|
|
xor %eax, %eax # cf=0
|
|
sbb \$-1, $acc4 # .Lpoly[0]
|
|
mov $acc6, $acc2
|
|
sbb $a_ptr, $acc5 # .Lpoly[1]
|
|
sbb \$0, $acc6 # .Lpoly[2]
|
|
mov $acc7, $acc3
|
|
sbb $t1, $acc7 # .Lpoly[3]
|
|
sbb \$0, $t3
|
|
|
|
cmovc $acc0, $acc4
|
|
cmovc $acc1, $acc5
|
|
mov $acc4, 8*0($r_ptr)
|
|
cmovc $acc2, $acc6
|
|
mov $acc5, 8*1($r_ptr)
|
|
cmovc $acc3, $acc7
|
|
mov $acc6, 8*2($r_ptr)
|
|
mov $acc7, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_sqr_montx,.-__ecp_nistz256_sqr_montx
|
|
___
|
|
}
|
|
}
|
|
{
|
|
my ($r_ptr,$in_ptr)=("%rdi","%rsi");
|
|
my ($acc0,$acc1,$acc2,$acc3)=map("%r$_",(8..11));
|
|
my ($t0,$t1,$t2)=("%rcx","%r12","%r13");
|
|
|
|
$code.=<<___;
|
|
################################################################################
|
|
# void ecp_nistz256_from_mont(
|
|
# uint64_t res[4],
|
|
# uint64_t in[4]);
|
|
# This one performs Montgomery multiplication by 1, so we only need the reduction
|
|
|
|
.globl ecp_nistz256_from_mont
|
|
.type ecp_nistz256_from_mont,\@function,2
|
|
.align 32
|
|
ecp_nistz256_from_mont:
|
|
push %r12
|
|
push %r13
|
|
|
|
mov 8*0($in_ptr), %rax
|
|
mov .Lpoly+8*3(%rip), $t2
|
|
mov 8*1($in_ptr), $acc1
|
|
mov 8*2($in_ptr), $acc2
|
|
mov 8*3($in_ptr), $acc3
|
|
mov %rax, $acc0
|
|
mov .Lpoly+8*1(%rip), $t1
|
|
|
|
#########################################
|
|
# First iteration
|
|
mov %rax, $t0
|
|
shl \$32, $acc0
|
|
mulq $t2
|
|
shr \$32, $t0
|
|
add $acc0, $acc1
|
|
adc $t0, $acc2
|
|
adc %rax, $acc3
|
|
mov $acc1, %rax
|
|
adc \$0, %rdx
|
|
|
|
#########################################
|
|
# Second iteration
|
|
mov $acc1, $t0
|
|
shl \$32, $acc1
|
|
mov %rdx, $acc0
|
|
mulq $t2
|
|
shr \$32, $t0
|
|
add $acc1, $acc2
|
|
adc $t0, $acc3
|
|
adc %rax, $acc0
|
|
mov $acc2, %rax
|
|
adc \$0, %rdx
|
|
|
|
##########################################
|
|
# Third iteration
|
|
mov $acc2, $t0
|
|
shl \$32, $acc2
|
|
mov %rdx, $acc1
|
|
mulq $t2
|
|
shr \$32, $t0
|
|
add $acc2, $acc3
|
|
adc $t0, $acc0
|
|
adc %rax, $acc1
|
|
mov $acc3, %rax
|
|
adc \$0, %rdx
|
|
|
|
###########################################
|
|
# Last iteration
|
|
mov $acc3, $t0
|
|
shl \$32, $acc3
|
|
mov %rdx, $acc2
|
|
mulq $t2
|
|
shr \$32, $t0
|
|
add $acc3, $acc0
|
|
adc $t0, $acc1
|
|
mov $acc0, $t0
|
|
adc %rax, $acc2
|
|
mov $acc1, $in_ptr
|
|
adc \$0, %rdx
|
|
|
|
###########################################
|
|
# Branch-less conditional subtraction
|
|
sub \$-1, $acc0
|
|
mov $acc2, %rax
|
|
sbb $t1, $acc1
|
|
sbb \$0, $acc2
|
|
mov %rdx, $acc3
|
|
sbb $t2, %rdx
|
|
sbb $t2, $t2
|
|
|
|
cmovnz $t0, $acc0
|
|
cmovnz $in_ptr, $acc1
|
|
mov $acc0, 8*0($r_ptr)
|
|
cmovnz %rax, $acc2
|
|
mov $acc1, 8*1($r_ptr)
|
|
cmovz %rdx, $acc3
|
|
mov $acc2, 8*2($r_ptr)
|
|
mov $acc3, 8*3($r_ptr)
|
|
|
|
pop %r13
|
|
pop %r12
|
|
ret
|
|
.size ecp_nistz256_from_mont,.-ecp_nistz256_from_mont
|
|
___
|
|
}
|
|
{
|
|
my ($val,$in_t,$index)=$win64?("%rcx","%rdx","%r8d"):("%rdi","%rsi","%edx");
|
|
my ($ONE,$INDEX,$Ra,$Rb,$Rc,$Rd,$Re,$Rf)=map("%xmm$_",(0..7));
|
|
my ($M0,$T0a,$T0b,$T0c,$T0d,$T0e,$T0f,$TMP0)=map("%xmm$_",(8..15));
|
|
my ($M1,$T2a,$T2b,$TMP2,$M2,$T2a,$T2b,$TMP2)=map("%xmm$_",(8..15));
|
|
|
|
$code.=<<___;
|
|
################################################################################
|
|
# void ecp_nistz256_scatter_w5(uint64_t *val, uint64_t *in_t, int index);
|
|
.globl ecp_nistz256_scatter_w5
|
|
.type ecp_nistz256_scatter_w5,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_scatter_w5:
|
|
lea -3($index,$index,2), $index
|
|
movdqa 0x00($in_t), %xmm0
|
|
shl \$5, $index
|
|
movdqa 0x10($in_t), %xmm1
|
|
movdqa 0x20($in_t), %xmm2
|
|
movdqa 0x30($in_t), %xmm3
|
|
movdqa 0x40($in_t), %xmm4
|
|
movdqa 0x50($in_t), %xmm5
|
|
movdqa %xmm0, 0x00($val,$index)
|
|
movdqa %xmm1, 0x10($val,$index)
|
|
movdqa %xmm2, 0x20($val,$index)
|
|
movdqa %xmm3, 0x30($val,$index)
|
|
movdqa %xmm4, 0x40($val,$index)
|
|
movdqa %xmm5, 0x50($val,$index)
|
|
|
|
ret
|
|
.size ecp_nistz256_scatter_w5,.-ecp_nistz256_scatter_w5
|
|
|
|
################################################################################
|
|
# void ecp_nistz256_gather_w5(uint64_t *val, uint64_t *in_t, int index);
|
|
.globl ecp_nistz256_gather_w5
|
|
.type ecp_nistz256_gather_w5,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_gather_w5:
|
|
___
|
|
$code.=<<___ if ($avx>1);
|
|
mov OPENSSL_ia32cap_P+8(%rip), %eax
|
|
test \$`1<<5`, %eax
|
|
jnz .Lavx2_gather_w5
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -0x88(%rsp), %rax
|
|
.LSEH_begin_ecp_nistz256_gather_w5:
|
|
.byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax), %rsp
|
|
.byte 0x0f,0x29,0x70,0xe0 #movaps %xmm6, -0x20(%rax)
|
|
.byte 0x0f,0x29,0x78,0xf0 #movaps %xmm7, -0x10(%rax)
|
|
.byte 0x44,0x0f,0x29,0x00 #movaps %xmm8, 0(%rax)
|
|
.byte 0x44,0x0f,0x29,0x48,0x10 #movaps %xmm9, 0x10(%rax)
|
|
.byte 0x44,0x0f,0x29,0x50,0x20 #movaps %xmm10, 0x20(%rax)
|
|
.byte 0x44,0x0f,0x29,0x58,0x30 #movaps %xmm11, 0x30(%rax)
|
|
.byte 0x44,0x0f,0x29,0x60,0x40 #movaps %xmm12, 0x40(%rax)
|
|
.byte 0x44,0x0f,0x29,0x68,0x50 #movaps %xmm13, 0x50(%rax)
|
|
.byte 0x44,0x0f,0x29,0x70,0x60 #movaps %xmm14, 0x60(%rax)
|
|
.byte 0x44,0x0f,0x29,0x78,0x70 #movaps %xmm15, 0x70(%rax)
|
|
___
|
|
$code.=<<___;
|
|
movdqa .LOne(%rip), $ONE
|
|
movd $index, $INDEX
|
|
|
|
pxor $Ra, $Ra
|
|
pxor $Rb, $Rb
|
|
pxor $Rc, $Rc
|
|
pxor $Rd, $Rd
|
|
pxor $Re, $Re
|
|
pxor $Rf, $Rf
|
|
|
|
movdqa $ONE, $M0
|
|
pshufd \$0, $INDEX, $INDEX
|
|
|
|
mov \$16, %rax
|
|
.Lselect_loop_sse_w5:
|
|
|
|
movdqa $M0, $TMP0
|
|
paddd $ONE, $M0
|
|
pcmpeqd $INDEX, $TMP0
|
|
|
|
movdqa 16*0($in_t), $T0a
|
|
movdqa 16*1($in_t), $T0b
|
|
movdqa 16*2($in_t), $T0c
|
|
movdqa 16*3($in_t), $T0d
|
|
movdqa 16*4($in_t), $T0e
|
|
movdqa 16*5($in_t), $T0f
|
|
lea 16*6($in_t), $in_t
|
|
|
|
pand $TMP0, $T0a
|
|
pand $TMP0, $T0b
|
|
por $T0a, $Ra
|
|
pand $TMP0, $T0c
|
|
por $T0b, $Rb
|
|
pand $TMP0, $T0d
|
|
por $T0c, $Rc
|
|
pand $TMP0, $T0e
|
|
por $T0d, $Rd
|
|
pand $TMP0, $T0f
|
|
por $T0e, $Re
|
|
por $T0f, $Rf
|
|
|
|
dec %rax
|
|
jnz .Lselect_loop_sse_w5
|
|
|
|
movdqu $Ra, 16*0($val)
|
|
movdqu $Rb, 16*1($val)
|
|
movdqu $Rc, 16*2($val)
|
|
movdqu $Rd, 16*3($val)
|
|
movdqu $Re, 16*4($val)
|
|
movdqu $Rf, 16*5($val)
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
movaps (%rsp), %xmm6
|
|
movaps 0x10(%rsp), %xmm7
|
|
movaps 0x20(%rsp), %xmm8
|
|
movaps 0x30(%rsp), %xmm9
|
|
movaps 0x40(%rsp), %xmm10
|
|
movaps 0x50(%rsp), %xmm11
|
|
movaps 0x60(%rsp), %xmm12
|
|
movaps 0x70(%rsp), %xmm13
|
|
movaps 0x80(%rsp), %xmm14
|
|
movaps 0x90(%rsp), %xmm15
|
|
lea 0xa8(%rsp), %rsp
|
|
.LSEH_end_ecp_nistz256_gather_w5:
|
|
___
|
|
$code.=<<___;
|
|
ret
|
|
.size ecp_nistz256_gather_w5,.-ecp_nistz256_gather_w5
|
|
|
|
################################################################################
|
|
# void ecp_nistz256_scatter_w7(uint64_t *val, uint64_t *in_t, int index);
|
|
.globl ecp_nistz256_scatter_w7
|
|
.type ecp_nistz256_scatter_w7,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_scatter_w7:
|
|
movdqu 0x00($in_t), %xmm0
|
|
shl \$6, $index
|
|
movdqu 0x10($in_t), %xmm1
|
|
movdqu 0x20($in_t), %xmm2
|
|
movdqu 0x30($in_t), %xmm3
|
|
movdqa %xmm0, 0x00($val,$index)
|
|
movdqa %xmm1, 0x10($val,$index)
|
|
movdqa %xmm2, 0x20($val,$index)
|
|
movdqa %xmm3, 0x30($val,$index)
|
|
|
|
ret
|
|
.size ecp_nistz256_scatter_w7,.-ecp_nistz256_scatter_w7
|
|
|
|
################################################################################
|
|
# void ecp_nistz256_gather_w7(uint64_t *val, uint64_t *in_t, int index);
|
|
.globl ecp_nistz256_gather_w7
|
|
.type ecp_nistz256_gather_w7,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_gather_w7:
|
|
___
|
|
$code.=<<___ if ($avx>1);
|
|
mov OPENSSL_ia32cap_P+8(%rip), %eax
|
|
test \$`1<<5`, %eax
|
|
jnz .Lavx2_gather_w7
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -0x88(%rsp), %rax
|
|
.LSEH_begin_ecp_nistz256_gather_w7:
|
|
.byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax), %rsp
|
|
.byte 0x0f,0x29,0x70,0xe0 #movaps %xmm6, -0x20(%rax)
|
|
.byte 0x0f,0x29,0x78,0xf0 #movaps %xmm7, -0x10(%rax)
|
|
.byte 0x44,0x0f,0x29,0x00 #movaps %xmm8, 0(%rax)
|
|
.byte 0x44,0x0f,0x29,0x48,0x10 #movaps %xmm9, 0x10(%rax)
|
|
.byte 0x44,0x0f,0x29,0x50,0x20 #movaps %xmm10, 0x20(%rax)
|
|
.byte 0x44,0x0f,0x29,0x58,0x30 #movaps %xmm11, 0x30(%rax)
|
|
.byte 0x44,0x0f,0x29,0x60,0x40 #movaps %xmm12, 0x40(%rax)
|
|
.byte 0x44,0x0f,0x29,0x68,0x50 #movaps %xmm13, 0x50(%rax)
|
|
.byte 0x44,0x0f,0x29,0x70,0x60 #movaps %xmm14, 0x60(%rax)
|
|
.byte 0x44,0x0f,0x29,0x78,0x70 #movaps %xmm15, 0x70(%rax)
|
|
___
|
|
$code.=<<___;
|
|
movdqa .LOne(%rip), $M0
|
|
movd $index, $INDEX
|
|
|
|
pxor $Ra, $Ra
|
|
pxor $Rb, $Rb
|
|
pxor $Rc, $Rc
|
|
pxor $Rd, $Rd
|
|
|
|
movdqa $M0, $ONE
|
|
pshufd \$0, $INDEX, $INDEX
|
|
mov \$64, %rax
|
|
|
|
.Lselect_loop_sse_w7:
|
|
movdqa $M0, $TMP0
|
|
paddd $ONE, $M0
|
|
movdqa 16*0($in_t), $T0a
|
|
movdqa 16*1($in_t), $T0b
|
|
pcmpeqd $INDEX, $TMP0
|
|
movdqa 16*2($in_t), $T0c
|
|
movdqa 16*3($in_t), $T0d
|
|
lea 16*4($in_t), $in_t
|
|
|
|
pand $TMP0, $T0a
|
|
pand $TMP0, $T0b
|
|
por $T0a, $Ra
|
|
pand $TMP0, $T0c
|
|
por $T0b, $Rb
|
|
pand $TMP0, $T0d
|
|
por $T0c, $Rc
|
|
prefetcht0 255($in_t)
|
|
por $T0d, $Rd
|
|
|
|
dec %rax
|
|
jnz .Lselect_loop_sse_w7
|
|
|
|
movdqu $Ra, 16*0($val)
|
|
movdqu $Rb, 16*1($val)
|
|
movdqu $Rc, 16*2($val)
|
|
movdqu $Rd, 16*3($val)
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
movaps (%rsp), %xmm6
|
|
movaps 0x10(%rsp), %xmm7
|
|
movaps 0x20(%rsp), %xmm8
|
|
movaps 0x30(%rsp), %xmm9
|
|
movaps 0x40(%rsp), %xmm10
|
|
movaps 0x50(%rsp), %xmm11
|
|
movaps 0x60(%rsp), %xmm12
|
|
movaps 0x70(%rsp), %xmm13
|
|
movaps 0x80(%rsp), %xmm14
|
|
movaps 0x90(%rsp), %xmm15
|
|
lea 0xa8(%rsp), %rsp
|
|
.LSEH_end_ecp_nistz256_gather_w7:
|
|
___
|
|
$code.=<<___;
|
|
ret
|
|
.size ecp_nistz256_gather_w7,.-ecp_nistz256_gather_w7
|
|
___
|
|
}
|
|
if ($avx>1) {
|
|
my ($val,$in_t,$index)=$win64?("%rcx","%rdx","%r8d"):("%rdi","%rsi","%edx");
|
|
my ($TWO,$INDEX,$Ra,$Rb,$Rc)=map("%ymm$_",(0..4));
|
|
my ($M0,$T0a,$T0b,$T0c,$TMP0)=map("%ymm$_",(5..9));
|
|
my ($M1,$T1a,$T1b,$T1c,$TMP1)=map("%ymm$_",(10..14));
|
|
|
|
$code.=<<___;
|
|
################################################################################
|
|
# void ecp_nistz256_avx2_gather_w5(uint64_t *val, uint64_t *in_t, int index);
|
|
.type ecp_nistz256_avx2_gather_w5,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_avx2_gather_w5:
|
|
.Lavx2_gather_w5:
|
|
vzeroupper
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -0x88(%rsp), %rax
|
|
.LSEH_begin_ecp_nistz256_avx2_gather_w5:
|
|
.byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax), %rsp
|
|
.byte 0xc5,0xf8,0x29,0x70,0xe0 #vmovaps %xmm6, -0x20(%rax)
|
|
.byte 0xc5,0xf8,0x29,0x78,0xf0 #vmovaps %xmm7, -0x10(%rax)
|
|
.byte 0xc5,0x78,0x29,0x40,0x00 #vmovaps %xmm8, 8(%rax)
|
|
.byte 0xc5,0x78,0x29,0x48,0x10 #vmovaps %xmm9, 0x10(%rax)
|
|
.byte 0xc5,0x78,0x29,0x50,0x20 #vmovaps %xmm10, 0x20(%rax)
|
|
.byte 0xc5,0x78,0x29,0x58,0x30 #vmovaps %xmm11, 0x30(%rax)
|
|
.byte 0xc5,0x78,0x29,0x60,0x40 #vmovaps %xmm12, 0x40(%rax)
|
|
.byte 0xc5,0x78,0x29,0x68,0x50 #vmovaps %xmm13, 0x50(%rax)
|
|
.byte 0xc5,0x78,0x29,0x70,0x60 #vmovaps %xmm14, 0x60(%rax)
|
|
.byte 0xc5,0x78,0x29,0x78,0x70 #vmovaps %xmm15, 0x70(%rax)
|
|
___
|
|
$code.=<<___;
|
|
vmovdqa .LTwo(%rip), $TWO
|
|
|
|
vpxor $Ra, $Ra, $Ra
|
|
vpxor $Rb, $Rb, $Rb
|
|
vpxor $Rc, $Rc, $Rc
|
|
|
|
vmovdqa .LOne(%rip), $M0
|
|
vmovdqa .LTwo(%rip), $M1
|
|
|
|
vmovd $index, %xmm1
|
|
vpermd $INDEX, $Ra, $INDEX
|
|
|
|
mov \$8, %rax
|
|
.Lselect_loop_avx2_w5:
|
|
|
|
vmovdqa 32*0($in_t), $T0a
|
|
vmovdqa 32*1($in_t), $T0b
|
|
vmovdqa 32*2($in_t), $T0c
|
|
|
|
vmovdqa 32*3($in_t), $T1a
|
|
vmovdqa 32*4($in_t), $T1b
|
|
vmovdqa 32*5($in_t), $T1c
|
|
|
|
vpcmpeqd $INDEX, $M0, $TMP0
|
|
vpcmpeqd $INDEX, $M1, $TMP1
|
|
|
|
vpaddd $TWO, $M0, $M0
|
|
vpaddd $TWO, $M1, $M1
|
|
lea 32*6($in_t), $in_t
|
|
|
|
vpand $TMP0, $T0a, $T0a
|
|
vpand $TMP0, $T0b, $T0b
|
|
vpand $TMP0, $T0c, $T0c
|
|
vpand $TMP1, $T1a, $T1a
|
|
vpand $TMP1, $T1b, $T1b
|
|
vpand $TMP1, $T1c, $T1c
|
|
|
|
vpxor $T0a, $Ra, $Ra
|
|
vpxor $T0b, $Rb, $Rb
|
|
vpxor $T0c, $Rc, $Rc
|
|
vpxor $T1a, $Ra, $Ra
|
|
vpxor $T1b, $Rb, $Rb
|
|
vpxor $T1c, $Rc, $Rc
|
|
|
|
dec %rax
|
|
jnz .Lselect_loop_avx2_w5
|
|
|
|
vmovdqu $Ra, 32*0($val)
|
|
vmovdqu $Rb, 32*1($val)
|
|
vmovdqu $Rc, 32*2($val)
|
|
vzeroupper
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
movaps (%rsp), %xmm6
|
|
movaps 0x10(%rsp), %xmm7
|
|
movaps 0x20(%rsp), %xmm8
|
|
movaps 0x30(%rsp), %xmm9
|
|
movaps 0x40(%rsp), %xmm10
|
|
movaps 0x50(%rsp), %xmm11
|
|
movaps 0x60(%rsp), %xmm12
|
|
movaps 0x70(%rsp), %xmm13
|
|
movaps 0x80(%rsp), %xmm14
|
|
movaps 0x90(%rsp), %xmm15
|
|
lea 0xa8(%rsp), %rsp
|
|
.LSEH_end_ecp_nistz256_avx2_gather_w5:
|
|
___
|
|
$code.=<<___;
|
|
ret
|
|
.size ecp_nistz256_avx2_gather_w5,.-ecp_nistz256_avx2_gather_w5
|
|
___
|
|
}
|
|
if ($avx>1) {
|
|
my ($val,$in_t,$index)=$win64?("%rcx","%rdx","%r8d"):("%rdi","%rsi","%edx");
|
|
my ($THREE,$INDEX,$Ra,$Rb)=map("%ymm$_",(0..3));
|
|
my ($M0,$T0a,$T0b,$TMP0)=map("%ymm$_",(4..7));
|
|
my ($M1,$T1a,$T1b,$TMP1)=map("%ymm$_",(8..11));
|
|
my ($M2,$T2a,$T2b,$TMP2)=map("%ymm$_",(12..15));
|
|
|
|
$code.=<<___;
|
|
|
|
################################################################################
|
|
# void ecp_nistz256_avx2_gather_w7(uint64_t *val, uint64_t *in_t, int index);
|
|
.globl ecp_nistz256_avx2_gather_w7
|
|
.type ecp_nistz256_avx2_gather_w7,\@abi-omnipotent
|
|
.align 32
|
|
ecp_nistz256_avx2_gather_w7:
|
|
.Lavx2_gather_w7:
|
|
vzeroupper
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
lea -0x88(%rsp), %rax
|
|
.LSEH_begin_ecp_nistz256_avx2_gather_w7:
|
|
.byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax), %rsp
|
|
.byte 0xc5,0xf8,0x29,0x70,0xe0 #vmovaps %xmm6, -0x20(%rax)
|
|
.byte 0xc5,0xf8,0x29,0x78,0xf0 #vmovaps %xmm7, -0x10(%rax)
|
|
.byte 0xc5,0x78,0x29,0x40,0x00 #vmovaps %xmm8, 8(%rax)
|
|
.byte 0xc5,0x78,0x29,0x48,0x10 #vmovaps %xmm9, 0x10(%rax)
|
|
.byte 0xc5,0x78,0x29,0x50,0x20 #vmovaps %xmm10, 0x20(%rax)
|
|
.byte 0xc5,0x78,0x29,0x58,0x30 #vmovaps %xmm11, 0x30(%rax)
|
|
.byte 0xc5,0x78,0x29,0x60,0x40 #vmovaps %xmm12, 0x40(%rax)
|
|
.byte 0xc5,0x78,0x29,0x68,0x50 #vmovaps %xmm13, 0x50(%rax)
|
|
.byte 0xc5,0x78,0x29,0x70,0x60 #vmovaps %xmm14, 0x60(%rax)
|
|
.byte 0xc5,0x78,0x29,0x78,0x70 #vmovaps %xmm15, 0x70(%rax)
|
|
___
|
|
$code.=<<___;
|
|
vmovdqa .LThree(%rip), $THREE
|
|
|
|
vpxor $Ra, $Ra, $Ra
|
|
vpxor $Rb, $Rb, $Rb
|
|
|
|
vmovdqa .LOne(%rip), $M0
|
|
vmovdqa .LTwo(%rip), $M1
|
|
vmovdqa .LThree(%rip), $M2
|
|
|
|
vmovd $index, %xmm1
|
|
vpermd $INDEX, $Ra, $INDEX
|
|
# Skip index = 0, because it is implicitly the point at infinity
|
|
|
|
mov \$21, %rax
|
|
.Lselect_loop_avx2_w7:
|
|
|
|
vmovdqa 32*0($in_t), $T0a
|
|
vmovdqa 32*1($in_t), $T0b
|
|
|
|
vmovdqa 32*2($in_t), $T1a
|
|
vmovdqa 32*3($in_t), $T1b
|
|
|
|
vmovdqa 32*4($in_t), $T2a
|
|
vmovdqa 32*5($in_t), $T2b
|
|
|
|
vpcmpeqd $INDEX, $M0, $TMP0
|
|
vpcmpeqd $INDEX, $M1, $TMP1
|
|
vpcmpeqd $INDEX, $M2, $TMP2
|
|
|
|
vpaddd $THREE, $M0, $M0
|
|
vpaddd $THREE, $M1, $M1
|
|
vpaddd $THREE, $M2, $M2
|
|
lea 32*6($in_t), $in_t
|
|
|
|
vpand $TMP0, $T0a, $T0a
|
|
vpand $TMP0, $T0b, $T0b
|
|
vpand $TMP1, $T1a, $T1a
|
|
vpand $TMP1, $T1b, $T1b
|
|
vpand $TMP2, $T2a, $T2a
|
|
vpand $TMP2, $T2b, $T2b
|
|
|
|
vpxor $T0a, $Ra, $Ra
|
|
vpxor $T0b, $Rb, $Rb
|
|
vpxor $T1a, $Ra, $Ra
|
|
vpxor $T1b, $Rb, $Rb
|
|
vpxor $T2a, $Ra, $Ra
|
|
vpxor $T2b, $Rb, $Rb
|
|
|
|
dec %rax
|
|
jnz .Lselect_loop_avx2_w7
|
|
|
|
|
|
vmovdqa 32*0($in_t), $T0a
|
|
vmovdqa 32*1($in_t), $T0b
|
|
|
|
vpcmpeqd $INDEX, $M0, $TMP0
|
|
|
|
vpand $TMP0, $T0a, $T0a
|
|
vpand $TMP0, $T0b, $T0b
|
|
|
|
vpxor $T0a, $Ra, $Ra
|
|
vpxor $T0b, $Rb, $Rb
|
|
|
|
vmovdqu $Ra, 32*0($val)
|
|
vmovdqu $Rb, 32*1($val)
|
|
vzeroupper
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
movaps (%rsp), %xmm6
|
|
movaps 0x10(%rsp), %xmm7
|
|
movaps 0x20(%rsp), %xmm8
|
|
movaps 0x30(%rsp), %xmm9
|
|
movaps 0x40(%rsp), %xmm10
|
|
movaps 0x50(%rsp), %xmm11
|
|
movaps 0x60(%rsp), %xmm12
|
|
movaps 0x70(%rsp), %xmm13
|
|
movaps 0x80(%rsp), %xmm14
|
|
movaps 0x90(%rsp), %xmm15
|
|
lea 0xa8(%rsp), %rsp
|
|
.LSEH_end_ecp_nistz256_avx2_gather_w7:
|
|
___
|
|
$code.=<<___;
|
|
ret
|
|
.size ecp_nistz256_avx2_gather_w7,.-ecp_nistz256_avx2_gather_w7
|
|
___
|
|
} else {
|
|
$code.=<<___;
|
|
.globl ecp_nistz256_avx2_gather_w7
|
|
.type ecp_nistz256_avx2_gather_w7,\@function,3
|
|
.align 32
|
|
ecp_nistz256_avx2_gather_w7:
|
|
.byte 0x0f,0x0b # ud2
|
|
ret
|
|
.size ecp_nistz256_avx2_gather_w7,.-ecp_nistz256_avx2_gather_w7
|
|
___
|
|
}
|
|
{{{
|
|
########################################################################
|
|
# This block implements higher level point_double, point_add and
|
|
# point_add_affine. The key to performance in this case is to allow
|
|
# out-of-order execution logic to overlap computations from next step
|
|
# with tail processing from current step. By using tailored calling
|
|
# sequence we minimize inter-step overhead to give processor better
|
|
# shot at overlapping operations...
|
|
#
|
|
# You will notice that input data is copied to stack. Trouble is that
|
|
# there are no registers to spare for holding original pointers and
|
|
# reloading them, pointers, would create undesired dependencies on
|
|
# effective addresses calculation paths. In other words it's too done
|
|
# to favour out-of-order execution logic.
|
|
# <appro@openssl.org>
|
|
|
|
my ($r_ptr,$a_ptr,$b_org,$b_ptr)=("%rdi","%rsi","%rdx","%rbx");
|
|
my ($acc0,$acc1,$acc2,$acc3,$acc4,$acc5,$acc6,$acc7)=map("%r$_",(8..15));
|
|
my ($t0,$t1,$t2,$t3,$t4)=("%rax","%rbp","%rcx",$acc4,$acc4);
|
|
my ($poly1,$poly3)=($acc6,$acc7);
|
|
|
|
sub load_for_mul () {
|
|
my ($a,$b,$src0) = @_;
|
|
my $bias = $src0 eq "%rax" ? 0 : -128;
|
|
|
|
" mov $b, $src0
|
|
lea $b, $b_ptr
|
|
mov 8*0+$a, $acc1
|
|
mov 8*1+$a, $acc2
|
|
lea $bias+$a, $a_ptr
|
|
mov 8*2+$a, $acc3
|
|
mov 8*3+$a, $acc4"
|
|
}
|
|
|
|
sub load_for_sqr () {
|
|
my ($a,$src0) = @_;
|
|
my $bias = $src0 eq "%rax" ? 0 : -128;
|
|
|
|
" mov 8*0+$a, $src0
|
|
mov 8*1+$a, $acc6
|
|
lea $bias+$a, $a_ptr
|
|
mov 8*2+$a, $acc7
|
|
mov 8*3+$a, $acc0"
|
|
}
|
|
|
|
{
|
|
########################################################################
|
|
# operate in 4-5-0-1 "name space" that matches multiplication output
|
|
#
|
|
my ($a0,$a1,$a2,$a3,$t3,$t4)=($acc4,$acc5,$acc0,$acc1,$acc2,$acc3);
|
|
|
|
$code.=<<___;
|
|
.type __ecp_nistz256_add_toq,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_add_toq:
|
|
add 8*0($b_ptr), $a0
|
|
adc 8*1($b_ptr), $a1
|
|
mov $a0, $t0
|
|
adc 8*2($b_ptr), $a2
|
|
adc 8*3($b_ptr), $a3
|
|
mov $a1, $t1
|
|
sbb $t4, $t4
|
|
|
|
sub \$-1, $a0
|
|
mov $a2, $t2
|
|
sbb $poly1, $a1
|
|
sbb \$0, $a2
|
|
mov $a3, $t3
|
|
sbb $poly3, $a3
|
|
test $t4, $t4
|
|
|
|
cmovz $t0, $a0
|
|
cmovz $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovz $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovz $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_add_toq,.-__ecp_nistz256_add_toq
|
|
|
|
.type __ecp_nistz256_sub_fromq,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_sub_fromq:
|
|
sub 8*0($b_ptr), $a0
|
|
sbb 8*1($b_ptr), $a1
|
|
mov $a0, $t0
|
|
sbb 8*2($b_ptr), $a2
|
|
sbb 8*3($b_ptr), $a3
|
|
mov $a1, $t1
|
|
sbb $t4, $t4
|
|
|
|
add \$-1, $a0
|
|
mov $a2, $t2
|
|
adc $poly1, $a1
|
|
adc \$0, $a2
|
|
mov $a3, $t3
|
|
adc $poly3, $a3
|
|
test $t4, $t4
|
|
|
|
cmovz $t0, $a0
|
|
cmovz $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovz $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovz $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_sub_fromq,.-__ecp_nistz256_sub_fromq
|
|
|
|
.type __ecp_nistz256_subq,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_subq:
|
|
sub $a0, $t0
|
|
sbb $a1, $t1
|
|
mov $t0, $a0
|
|
sbb $a2, $t2
|
|
sbb $a3, $t3
|
|
mov $t1, $a1
|
|
sbb $t4, $t4
|
|
|
|
add \$-1, $t0
|
|
mov $t2, $a2
|
|
adc $poly1, $t1
|
|
adc \$0, $t2
|
|
mov $t3, $a3
|
|
adc $poly3, $t3
|
|
test $t4, $t4
|
|
|
|
cmovnz $t0, $a0
|
|
cmovnz $t1, $a1
|
|
cmovnz $t2, $a2
|
|
cmovnz $t3, $a3
|
|
|
|
ret
|
|
.size __ecp_nistz256_subq,.-__ecp_nistz256_subq
|
|
|
|
.type __ecp_nistz256_mul_by_2q,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_mul_by_2q:
|
|
add $a0, $a0 # a0:a3+a0:a3
|
|
adc $a1, $a1
|
|
mov $a0, $t0
|
|
adc $a2, $a2
|
|
adc $a3, $a3
|
|
mov $a1, $t1
|
|
sbb $t4, $t4
|
|
|
|
sub \$-1, $a0
|
|
mov $a2, $t2
|
|
sbb $poly1, $a1
|
|
sbb \$0, $a2
|
|
mov $a3, $t3
|
|
sbb $poly3, $a3
|
|
test $t4, $t4
|
|
|
|
cmovz $t0, $a0
|
|
cmovz $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovz $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovz $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_mul_by_2q,.-__ecp_nistz256_mul_by_2q
|
|
___
|
|
}
|
|
sub gen_double () {
|
|
my $x = shift;
|
|
my ($src0,$sfx,$bias);
|
|
my ($S,$M,$Zsqr,$in_x,$tmp0)=map(32*$_,(0..4));
|
|
|
|
if ($x ne "x") {
|
|
$src0 = "%rax";
|
|
$sfx = "";
|
|
$bias = 0;
|
|
|
|
$code.=<<___;
|
|
.globl ecp_nistz256_point_double
|
|
.type ecp_nistz256_point_double,\@function,2
|
|
.align 32
|
|
ecp_nistz256_point_double:
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
mov \$0x80100, %ecx
|
|
and OPENSSL_ia32cap_P+8(%rip), %ecx
|
|
cmp \$0x80100, %ecx
|
|
je .Lpoint_doublex
|
|
___
|
|
} else {
|
|
$src0 = "%rdx";
|
|
$sfx = "x";
|
|
$bias = 128;
|
|
|
|
$code.=<<___;
|
|
.type ecp_nistz256_point_doublex,\@function,2
|
|
.align 32
|
|
ecp_nistz256_point_doublex:
|
|
.Lpoint_doublex:
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
push %rbp
|
|
push %rbx
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
sub \$32*5+8, %rsp
|
|
|
|
movdqu 0x00($a_ptr), %xmm0 # copy *(P256_POINT *)$a_ptr.x
|
|
mov $a_ptr, $b_ptr # backup copy
|
|
movdqu 0x10($a_ptr), %xmm1
|
|
mov 0x20+8*0($a_ptr), $acc4 # load in_y in "5-4-0-1" order
|
|
mov 0x20+8*1($a_ptr), $acc5
|
|
mov 0x20+8*2($a_ptr), $acc0
|
|
mov 0x20+8*3($a_ptr), $acc1
|
|
mov .Lpoly+8*1(%rip), $poly1
|
|
mov .Lpoly+8*3(%rip), $poly3
|
|
movdqa %xmm0, $in_x(%rsp)
|
|
movdqa %xmm1, $in_x+0x10(%rsp)
|
|
lea 0x20($r_ptr), $acc2
|
|
lea 0x40($r_ptr), $acc3
|
|
movq $r_ptr, %xmm0
|
|
movq $acc2, %xmm1
|
|
movq $acc3, %xmm2
|
|
|
|
lea $S(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_by_2$x # p256_mul_by_2(S, in_y);
|
|
|
|
mov 0x40+8*0($a_ptr), $src0
|
|
mov 0x40+8*1($a_ptr), $acc6
|
|
mov 0x40+8*2($a_ptr), $acc7
|
|
mov 0x40+8*3($a_ptr), $acc0
|
|
lea 0x40-$bias($a_ptr), $a_ptr
|
|
lea $Zsqr(%rsp), $r_ptr
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Zsqr, in_z);
|
|
|
|
`&load_for_sqr("$S(%rsp)", "$src0")`
|
|
lea $S(%rsp), $r_ptr
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(S, S);
|
|
|
|
mov 0x20($b_ptr), $src0 # $b_ptr is still valid
|
|
mov 0x40+8*0($b_ptr), $acc1
|
|
mov 0x40+8*1($b_ptr), $acc2
|
|
mov 0x40+8*2($b_ptr), $acc3
|
|
mov 0x40+8*3($b_ptr), $acc4
|
|
lea 0x40-$bias($b_ptr), $a_ptr
|
|
lea 0x20($b_ptr), $b_ptr
|
|
movq %xmm2, $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(res_z, in_z, in_y);
|
|
call __ecp_nistz256_mul_by_2$x # p256_mul_by_2(res_z, res_z);
|
|
|
|
mov $in_x+8*0(%rsp), $acc4 # "5-4-0-1" order
|
|
mov $in_x+8*1(%rsp), $acc5
|
|
lea $Zsqr(%rsp), $b_ptr
|
|
mov $in_x+8*2(%rsp), $acc0
|
|
mov $in_x+8*3(%rsp), $acc1
|
|
lea $M(%rsp), $r_ptr
|
|
call __ecp_nistz256_add_to$x # p256_add(M, in_x, Zsqr);
|
|
|
|
mov $in_x+8*0(%rsp), $acc4 # "5-4-0-1" order
|
|
mov $in_x+8*1(%rsp), $acc5
|
|
lea $Zsqr(%rsp), $b_ptr
|
|
mov $in_x+8*2(%rsp), $acc0
|
|
mov $in_x+8*3(%rsp), $acc1
|
|
lea $Zsqr(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(Zsqr, in_x, Zsqr);
|
|
|
|
`&load_for_sqr("$S(%rsp)", "$src0")`
|
|
movq %xmm1, $r_ptr
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(res_y, S);
|
|
___
|
|
{
|
|
######## ecp_nistz256_div_by_2(res_y, res_y); ##########################
|
|
# operate in 4-5-6-7 "name space" that matches squaring output
|
|
#
|
|
my ($poly1,$poly3)=($a_ptr,$t1);
|
|
my ($a0,$a1,$a2,$a3,$t3,$t4,$t1)=($acc4,$acc5,$acc6,$acc7,$acc0,$acc1,$acc2);
|
|
|
|
$code.=<<___;
|
|
xor $t4, $t4
|
|
mov $a0, $t0
|
|
add \$-1, $a0
|
|
mov $a1, $t1
|
|
adc $poly1, $a1
|
|
mov $a2, $t2
|
|
adc \$0, $a2
|
|
mov $a3, $t3
|
|
adc $poly3, $a3
|
|
adc \$0, $t4
|
|
xor $a_ptr, $a_ptr # borrow $a_ptr
|
|
test \$1, $t0
|
|
|
|
cmovz $t0, $a0
|
|
cmovz $t1, $a1
|
|
cmovz $t2, $a2
|
|
cmovz $t3, $a3
|
|
cmovz $a_ptr, $t4
|
|
|
|
mov $a1, $t0 # a0:a3>>1
|
|
shr \$1, $a0
|
|
shl \$63, $t0
|
|
mov $a2, $t1
|
|
shr \$1, $a1
|
|
or $t0, $a0
|
|
shl \$63, $t1
|
|
mov $a3, $t2
|
|
shr \$1, $a2
|
|
or $t1, $a1
|
|
shl \$63, $t2
|
|
mov $a0, 8*0($r_ptr)
|
|
shr \$1, $a3
|
|
mov $a1, 8*1($r_ptr)
|
|
shl \$63, $t4
|
|
or $t2, $a2
|
|
or $t4, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
`&load_for_mul("$M(%rsp)", "$Zsqr(%rsp)", "$src0")`
|
|
lea $M(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(M, M, Zsqr);
|
|
|
|
lea $tmp0(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_by_2$x
|
|
|
|
lea $M(%rsp), $b_ptr
|
|
lea $M(%rsp), $r_ptr
|
|
call __ecp_nistz256_add_to$x # p256_mul_by_3(M, M);
|
|
|
|
`&load_for_mul("$S(%rsp)", "$in_x(%rsp)", "$src0")`
|
|
lea $S(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S, S, in_x);
|
|
|
|
lea $tmp0(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_by_2$x # p256_mul_by_2(tmp0, S);
|
|
|
|
`&load_for_sqr("$M(%rsp)", "$src0")`
|
|
movq %xmm0, $r_ptr
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(res_x, M);
|
|
|
|
lea $tmp0(%rsp), $b_ptr
|
|
mov $acc6, $acc0 # harmonize sqr output and sub input
|
|
mov $acc7, $acc1
|
|
mov $a_ptr, $poly1
|
|
mov $t1, $poly3
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_x, res_x, tmp0);
|
|
|
|
mov $S+8*0(%rsp), $t0
|
|
mov $S+8*1(%rsp), $t1
|
|
mov $S+8*2(%rsp), $t2
|
|
mov $S+8*3(%rsp), $acc2 # "4-5-0-1" order
|
|
lea $S(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub$x # p256_sub(S, S, res_x);
|
|
|
|
mov $M(%rsp), $src0
|
|
lea $M(%rsp), $b_ptr
|
|
mov $acc4, $acc6 # harmonize sub output and mul input
|
|
xor %ecx, %ecx
|
|
mov $acc4, $S+8*0(%rsp) # have to save:-(
|
|
mov $acc5, $acc2
|
|
mov $acc5, $S+8*1(%rsp)
|
|
cmovz $acc0, $acc3
|
|
mov $acc0, $S+8*2(%rsp)
|
|
lea $S-$bias(%rsp), $a_ptr
|
|
cmovz $acc1, $acc4
|
|
mov $acc1, $S+8*3(%rsp)
|
|
mov $acc6, $acc1
|
|
lea $S(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S, S, M);
|
|
|
|
movq %xmm1, $b_ptr
|
|
movq %xmm1, $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_y, S, res_y);
|
|
|
|
add \$32*5+8, %rsp
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbx
|
|
pop %rbp
|
|
ret
|
|
.size ecp_nistz256_point_double$sfx,.-ecp_nistz256_point_double$sfx
|
|
___
|
|
}
|
|
&gen_double("q");
|
|
|
|
sub gen_add () {
|
|
my $x = shift;
|
|
my ($src0,$sfx,$bias);
|
|
my ($H,$Hsqr,$R,$Rsqr,$Hcub,
|
|
$U1,$U2,$S1,$S2,
|
|
$res_x,$res_y,$res_z,
|
|
$in1_x,$in1_y,$in1_z,
|
|
$in2_x,$in2_y,$in2_z)=map(32*$_,(0..17));
|
|
my ($Z1sqr, $Z2sqr) = ($Hsqr, $Rsqr);
|
|
|
|
if ($x ne "x") {
|
|
$src0 = "%rax";
|
|
$sfx = "";
|
|
$bias = 0;
|
|
|
|
$code.=<<___;
|
|
.globl ecp_nistz256_point_add
|
|
.type ecp_nistz256_point_add,\@function,3
|
|
.align 32
|
|
ecp_nistz256_point_add:
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
mov \$0x80100, %ecx
|
|
and OPENSSL_ia32cap_P+8(%rip), %ecx
|
|
cmp \$0x80100, %ecx
|
|
je .Lpoint_addx
|
|
___
|
|
} else {
|
|
$src0 = "%rdx";
|
|
$sfx = "x";
|
|
$bias = 128;
|
|
|
|
$code.=<<___;
|
|
.type ecp_nistz256_point_addx,\@function,3
|
|
.align 32
|
|
ecp_nistz256_point_addx:
|
|
.Lpoint_addx:
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
push %rbp
|
|
push %rbx
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
sub \$32*18+8, %rsp
|
|
|
|
movdqu 0x00($a_ptr), %xmm0 # copy *(P256_POINT *)$a_ptr
|
|
movdqu 0x10($a_ptr), %xmm1
|
|
movdqu 0x20($a_ptr), %xmm2
|
|
movdqu 0x30($a_ptr), %xmm3
|
|
movdqu 0x40($a_ptr), %xmm4
|
|
movdqu 0x50($a_ptr), %xmm5
|
|
mov $a_ptr, $b_ptr # reassign
|
|
mov $b_org, $a_ptr # reassign
|
|
movdqa %xmm0, $in1_x(%rsp)
|
|
movdqa %xmm1, $in1_x+0x10(%rsp)
|
|
por %xmm0, %xmm1
|
|
movdqa %xmm2, $in1_y(%rsp)
|
|
movdqa %xmm3, $in1_y+0x10(%rsp)
|
|
por %xmm2, %xmm3
|
|
movdqa %xmm4, $in1_z(%rsp)
|
|
movdqa %xmm5, $in1_z+0x10(%rsp)
|
|
por %xmm1, %xmm3
|
|
|
|
movdqu 0x00($a_ptr), %xmm0 # copy *(P256_POINT *)$b_ptr
|
|
pshufd \$0xb1, %xmm3, %xmm5
|
|
movdqu 0x10($a_ptr), %xmm1
|
|
movdqu 0x20($a_ptr), %xmm2
|
|
por %xmm3, %xmm5
|
|
movdqu 0x30($a_ptr), %xmm3
|
|
mov 0x40+8*0($a_ptr), $src0 # load original in2_z
|
|
mov 0x40+8*1($a_ptr), $acc6
|
|
mov 0x40+8*2($a_ptr), $acc7
|
|
mov 0x40+8*3($a_ptr), $acc0
|
|
movdqa %xmm0, $in2_x(%rsp)
|
|
pshufd \$0x1e, %xmm5, %xmm4
|
|
movdqa %xmm1, $in2_x+0x10(%rsp)
|
|
por %xmm0, %xmm1
|
|
movq $r_ptr, %xmm0 # save $r_ptr
|
|
movdqa %xmm2, $in2_y(%rsp)
|
|
movdqa %xmm3, $in2_y+0x10(%rsp)
|
|
por %xmm2, %xmm3
|
|
por %xmm4, %xmm5
|
|
pxor %xmm4, %xmm4
|
|
por %xmm1, %xmm3
|
|
|
|
lea 0x40-$bias($a_ptr), $a_ptr # $a_ptr is still valid
|
|
mov $src0, $in2_z+8*0(%rsp) # make in2_z copy
|
|
mov $acc6, $in2_z+8*1(%rsp)
|
|
mov $acc7, $in2_z+8*2(%rsp)
|
|
mov $acc0, $in2_z+8*3(%rsp)
|
|
lea $Z2sqr(%rsp), $r_ptr # Z2^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Z2sqr, in2_z);
|
|
|
|
pcmpeqd %xmm4, %xmm5
|
|
pshufd \$0xb1, %xmm3, %xmm4
|
|
por %xmm3, %xmm4
|
|
pshufd \$0, %xmm5, %xmm5 # in1infty
|
|
pshufd \$0x1e, %xmm4, %xmm3
|
|
por %xmm3, %xmm4
|
|
pxor %xmm3, %xmm3
|
|
pcmpeqd %xmm3, %xmm4
|
|
pshufd \$0, %xmm4, %xmm4 # in2infty
|
|
mov 0x40+8*0($b_ptr), $src0 # load original in1_z
|
|
mov 0x40+8*1($b_ptr), $acc6
|
|
mov 0x40+8*2($b_ptr), $acc7
|
|
mov 0x40+8*3($b_ptr), $acc0
|
|
|
|
lea 0x40-$bias($b_ptr), $a_ptr
|
|
lea $Z1sqr(%rsp), $r_ptr # Z1^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Z1sqr, in1_z);
|
|
|
|
`&load_for_mul("$Z2sqr(%rsp)", "$in2_z(%rsp)", "$src0")`
|
|
lea $S1(%rsp), $r_ptr # S1 = Z2^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S1, Z2sqr, in2_z);
|
|
|
|
`&load_for_mul("$Z1sqr(%rsp)", "$in1_z(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr # S2 = Z1^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, Z1sqr, in1_z);
|
|
|
|
`&load_for_mul("$S1(%rsp)", "$in1_y(%rsp)", "$src0")`
|
|
lea $S1(%rsp), $r_ptr # S1 = Y1*Z2^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S1, S1, in1_y);
|
|
|
|
`&load_for_mul("$S2(%rsp)", "$in2_y(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr # S2 = Y2*Z1^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, S2, in2_y);
|
|
|
|
lea $S1(%rsp), $b_ptr
|
|
lea $R(%rsp), $r_ptr # R = S2 - S1
|
|
call __ecp_nistz256_sub_from$x # p256_sub(R, S2, S1);
|
|
|
|
or $acc5, $acc4 # see if result is zero
|
|
movdqa %xmm4, %xmm2
|
|
or $acc0, $acc4
|
|
or $acc1, $acc4
|
|
por %xmm5, %xmm2 # in1infty || in2infty
|
|
movq $acc4, %xmm3
|
|
|
|
`&load_for_mul("$Z2sqr(%rsp)", "$in1_x(%rsp)", "$src0")`
|
|
lea $U1(%rsp), $r_ptr # U1 = X1*Z2^2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(U1, in1_x, Z2sqr);
|
|
|
|
`&load_for_mul("$Z1sqr(%rsp)", "$in2_x(%rsp)", "$src0")`
|
|
lea $U2(%rsp), $r_ptr # U2 = X2*Z1^2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(U2, in2_x, Z1sqr);
|
|
|
|
lea $U1(%rsp), $b_ptr
|
|
lea $H(%rsp), $r_ptr # H = U2 - U1
|
|
call __ecp_nistz256_sub_from$x # p256_sub(H, U2, U1);
|
|
|
|
or $acc5, $acc4 # see if result is zero
|
|
or $acc0, $acc4
|
|
or $acc1, $acc4
|
|
|
|
.byte 0x3e # predict taken
|
|
jnz .Ladd_proceed$x # is_equal(U1,U2)?
|
|
movq %xmm2, $acc0
|
|
movq %xmm3, $acc1
|
|
test $acc0, $acc0
|
|
jnz .Ladd_proceed$x # (in1infty || in2infty)?
|
|
test $acc1, $acc1
|
|
jz .Ladd_proceed$x # is_equal(S1,S2)?
|
|
|
|
movq %xmm0, $r_ptr # restore $r_ptr
|
|
pxor %xmm0, %xmm0
|
|
movdqu %xmm0, 0x00($r_ptr)
|
|
movdqu %xmm0, 0x10($r_ptr)
|
|
movdqu %xmm0, 0x20($r_ptr)
|
|
movdqu %xmm0, 0x30($r_ptr)
|
|
movdqu %xmm0, 0x40($r_ptr)
|
|
movdqu %xmm0, 0x50($r_ptr)
|
|
jmp .Ladd_done$x
|
|
|
|
.align 32
|
|
.Ladd_proceed$x:
|
|
`&load_for_sqr("$R(%rsp)", "$src0")`
|
|
lea $Rsqr(%rsp), $r_ptr # R^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Rsqr, R);
|
|
|
|
`&load_for_mul("$H(%rsp)", "$in1_z(%rsp)", "$src0")`
|
|
lea $res_z(%rsp), $r_ptr # Z3 = H*Z1*Z2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(res_z, H, in1_z);
|
|
|
|
`&load_for_sqr("$H(%rsp)", "$src0")`
|
|
lea $Hsqr(%rsp), $r_ptr # H^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Hsqr, H);
|
|
|
|
`&load_for_mul("$res_z(%rsp)", "$in2_z(%rsp)", "$src0")`
|
|
lea $res_z(%rsp), $r_ptr # Z3 = H*Z1*Z2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(res_z, res_z, in2_z);
|
|
|
|
`&load_for_mul("$Hsqr(%rsp)", "$H(%rsp)", "$src0")`
|
|
lea $Hcub(%rsp), $r_ptr # H^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(Hcub, Hsqr, H);
|
|
|
|
`&load_for_mul("$Hsqr(%rsp)", "$U1(%rsp)", "$src0")`
|
|
lea $U2(%rsp), $r_ptr # U1*H^2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(U2, U1, Hsqr);
|
|
___
|
|
{
|
|
#######################################################################
|
|
# operate in 4-5-0-1 "name space" that matches multiplication output
|
|
#
|
|
my ($acc0,$acc1,$acc2,$acc3,$t3,$t4)=($acc4,$acc5,$acc0,$acc1,$acc2,$acc3);
|
|
my ($poly1, $poly3)=($acc6,$acc7);
|
|
|
|
$code.=<<___;
|
|
#lea $U2(%rsp), $a_ptr
|
|
#lea $Hsqr(%rsp), $r_ptr # 2*U1*H^2
|
|
#call __ecp_nistz256_mul_by_2 # ecp_nistz256_mul_by_2(Hsqr, U2);
|
|
|
|
add $acc0, $acc0 # a0:a3+a0:a3
|
|
lea $Rsqr(%rsp), $a_ptr
|
|
adc $acc1, $acc1
|
|
mov $acc0, $t0
|
|
adc $acc2, $acc2
|
|
adc $acc3, $acc3
|
|
mov $acc1, $t1
|
|
sbb $t4, $t4
|
|
|
|
sub \$-1, $acc0
|
|
mov $acc2, $t2
|
|
sbb $poly1, $acc1
|
|
sbb \$0, $acc2
|
|
mov $acc3, $t3
|
|
sbb $poly3, $acc3
|
|
test $t4, $t4
|
|
|
|
cmovz $t0, $acc0
|
|
mov 8*0($a_ptr), $t0
|
|
cmovz $t1, $acc1
|
|
mov 8*1($a_ptr), $t1
|
|
cmovz $t2, $acc2
|
|
mov 8*2($a_ptr), $t2
|
|
cmovz $t3, $acc3
|
|
mov 8*3($a_ptr), $t3
|
|
|
|
call __ecp_nistz256_sub$x # p256_sub(res_x, Rsqr, Hsqr);
|
|
|
|
lea $Hcub(%rsp), $b_ptr
|
|
lea $res_x(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_x, res_x, Hcub);
|
|
|
|
mov $U2+8*0(%rsp), $t0
|
|
mov $U2+8*1(%rsp), $t1
|
|
mov $U2+8*2(%rsp), $t2
|
|
mov $U2+8*3(%rsp), $t3
|
|
lea $res_y(%rsp), $r_ptr
|
|
|
|
call __ecp_nistz256_sub$x # p256_sub(res_y, U2, res_x);
|
|
|
|
mov $acc0, 8*0($r_ptr) # save the result, as
|
|
mov $acc1, 8*1($r_ptr) # __ecp_nistz256_sub doesn't
|
|
mov $acc2, 8*2($r_ptr)
|
|
mov $acc3, 8*3($r_ptr)
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
`&load_for_mul("$S1(%rsp)", "$Hcub(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, S1, Hcub);
|
|
|
|
`&load_for_mul("$R(%rsp)", "$res_y(%rsp)", "$src0")`
|
|
lea $res_y(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(res_y, R, res_y);
|
|
|
|
lea $S2(%rsp), $b_ptr
|
|
lea $res_y(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_y, res_y, S2);
|
|
|
|
movq %xmm0, $r_ptr # restore $r_ptr
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_z, in2_z, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_z(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_z+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand $in2_z(%rsp), %xmm2
|
|
pand $in2_z+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_z, in1_z, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_z(%rsp), %xmm2
|
|
pand $in1_z+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x40($r_ptr)
|
|
movdqu %xmm3, 0x50($r_ptr)
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_x, in2_x, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_x(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_x+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand $in2_x(%rsp), %xmm2
|
|
pand $in2_x+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_x, in1_x, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_x(%rsp), %xmm2
|
|
pand $in1_x+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x00($r_ptr)
|
|
movdqu %xmm3, 0x10($r_ptr)
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_y, in2_y, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_y(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_y+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand $in2_y(%rsp), %xmm2
|
|
pand $in2_y+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_y, in1_y, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_y(%rsp), %xmm2
|
|
pand $in1_y+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x20($r_ptr)
|
|
movdqu %xmm3, 0x30($r_ptr)
|
|
|
|
.Ladd_done$x:
|
|
add \$32*18+8, %rsp
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbx
|
|
pop %rbp
|
|
ret
|
|
.size ecp_nistz256_point_add$sfx,.-ecp_nistz256_point_add$sfx
|
|
___
|
|
}
|
|
&gen_add("q");
|
|
|
|
sub gen_add_affine () {
|
|
my $x = shift;
|
|
my ($src0,$sfx,$bias);
|
|
my ($U2,$S2,$H,$R,$Hsqr,$Hcub,$Rsqr,
|
|
$res_x,$res_y,$res_z,
|
|
$in1_x,$in1_y,$in1_z,
|
|
$in2_x,$in2_y)=map(32*$_,(0..14));
|
|
my $Z1sqr = $S2;
|
|
|
|
if ($x ne "x") {
|
|
$src0 = "%rax";
|
|
$sfx = "";
|
|
$bias = 0;
|
|
|
|
$code.=<<___;
|
|
.globl ecp_nistz256_point_add_affine
|
|
.type ecp_nistz256_point_add_affine,\@function,3
|
|
.align 32
|
|
ecp_nistz256_point_add_affine:
|
|
___
|
|
$code.=<<___ if ($addx);
|
|
mov \$0x80100, %ecx
|
|
and OPENSSL_ia32cap_P+8(%rip), %ecx
|
|
cmp \$0x80100, %ecx
|
|
je .Lpoint_add_affinex
|
|
___
|
|
} else {
|
|
$src0 = "%rdx";
|
|
$sfx = "x";
|
|
$bias = 128;
|
|
|
|
$code.=<<___;
|
|
.type ecp_nistz256_point_add_affinex,\@function,3
|
|
.align 32
|
|
ecp_nistz256_point_add_affinex:
|
|
.Lpoint_add_affinex:
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
push %rbp
|
|
push %rbx
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
sub \$32*15+8, %rsp
|
|
|
|
movdqu 0x00($a_ptr), %xmm0 # copy *(P256_POINT *)$a_ptr
|
|
mov $b_org, $b_ptr # reassign
|
|
movdqu 0x10($a_ptr), %xmm1
|
|
movdqu 0x20($a_ptr), %xmm2
|
|
movdqu 0x30($a_ptr), %xmm3
|
|
movdqu 0x40($a_ptr), %xmm4
|
|
movdqu 0x50($a_ptr), %xmm5
|
|
mov 0x40+8*0($a_ptr), $src0 # load original in1_z
|
|
mov 0x40+8*1($a_ptr), $acc6
|
|
mov 0x40+8*2($a_ptr), $acc7
|
|
mov 0x40+8*3($a_ptr), $acc0
|
|
movdqa %xmm0, $in1_x(%rsp)
|
|
movdqa %xmm1, $in1_x+0x10(%rsp)
|
|
por %xmm0, %xmm1
|
|
movdqa %xmm2, $in1_y(%rsp)
|
|
movdqa %xmm3, $in1_y+0x10(%rsp)
|
|
por %xmm2, %xmm3
|
|
movdqa %xmm4, $in1_z(%rsp)
|
|
movdqa %xmm5, $in1_z+0x10(%rsp)
|
|
por %xmm1, %xmm3
|
|
|
|
movdqu 0x00($b_ptr), %xmm0 # copy *(P256_POINT_AFFINE *)$b_ptr
|
|
pshufd \$0xb1, %xmm3, %xmm5
|
|
movdqu 0x10($b_ptr), %xmm1
|
|
movdqu 0x20($b_ptr), %xmm2
|
|
por %xmm3, %xmm5
|
|
movdqu 0x30($b_ptr), %xmm3
|
|
movdqa %xmm0, $in2_x(%rsp)
|
|
pshufd \$0x1e, %xmm5, %xmm4
|
|
movdqa %xmm1, $in2_x+0x10(%rsp)
|
|
por %xmm0, %xmm1
|
|
movq $r_ptr, %xmm0 # save $r_ptr
|
|
movdqa %xmm2, $in2_y(%rsp)
|
|
movdqa %xmm3, $in2_y+0x10(%rsp)
|
|
por %xmm2, %xmm3
|
|
por %xmm4, %xmm5
|
|
pxor %xmm4, %xmm4
|
|
por %xmm1, %xmm3
|
|
|
|
lea 0x40-$bias($a_ptr), $a_ptr # $a_ptr is still valid
|
|
lea $Z1sqr(%rsp), $r_ptr # Z1^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Z1sqr, in1_z);
|
|
|
|
pcmpeqd %xmm4, %xmm5
|
|
pshufd \$0xb1, %xmm3, %xmm4
|
|
mov 0x00($b_ptr), $src0 # $b_ptr is still valid
|
|
#lea 0x00($b_ptr), $b_ptr
|
|
mov $acc4, $acc1 # harmonize sqr output and mul input
|
|
por %xmm3, %xmm4
|
|
pshufd \$0, %xmm5, %xmm5 # in1infty
|
|
pshufd \$0x1e, %xmm4, %xmm3
|
|
mov $acc5, $acc2
|
|
por %xmm3, %xmm4
|
|
pxor %xmm3, %xmm3
|
|
mov $acc6, $acc3
|
|
pcmpeqd %xmm3, %xmm4
|
|
pshufd \$0, %xmm4, %xmm4 # in2infty
|
|
|
|
lea $Z1sqr-$bias(%rsp), $a_ptr
|
|
mov $acc7, $acc4
|
|
lea $U2(%rsp), $r_ptr # U2 = X2*Z1^2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(U2, Z1sqr, in2_x);
|
|
|
|
lea $in1_x(%rsp), $b_ptr
|
|
lea $H(%rsp), $r_ptr # H = U2 - U1
|
|
call __ecp_nistz256_sub_from$x # p256_sub(H, U2, in1_x);
|
|
|
|
`&load_for_mul("$Z1sqr(%rsp)", "$in1_z(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr # S2 = Z1^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, Z1sqr, in1_z);
|
|
|
|
`&load_for_mul("$H(%rsp)", "$in1_z(%rsp)", "$src0")`
|
|
lea $res_z(%rsp), $r_ptr # Z3 = H*Z1*Z2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(res_z, H, in1_z);
|
|
|
|
`&load_for_mul("$S2(%rsp)", "$in2_y(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr # S2 = Y2*Z1^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, S2, in2_y);
|
|
|
|
lea $in1_y(%rsp), $b_ptr
|
|
lea $R(%rsp), $r_ptr # R = S2 - S1
|
|
call __ecp_nistz256_sub_from$x # p256_sub(R, S2, in1_y);
|
|
|
|
`&load_for_sqr("$H(%rsp)", "$src0")`
|
|
lea $Hsqr(%rsp), $r_ptr # H^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Hsqr, H);
|
|
|
|
`&load_for_sqr("$R(%rsp)", "$src0")`
|
|
lea $Rsqr(%rsp), $r_ptr # R^2
|
|
call __ecp_nistz256_sqr_mont$x # p256_sqr_mont(Rsqr, R);
|
|
|
|
`&load_for_mul("$H(%rsp)", "$Hsqr(%rsp)", "$src0")`
|
|
lea $Hcub(%rsp), $r_ptr # H^3
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(Hcub, Hsqr, H);
|
|
|
|
`&load_for_mul("$Hsqr(%rsp)", "$in1_x(%rsp)", "$src0")`
|
|
lea $U2(%rsp), $r_ptr # U1*H^2
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(U2, in1_x, Hsqr);
|
|
___
|
|
{
|
|
#######################################################################
|
|
# operate in 4-5-0-1 "name space" that matches multiplication output
|
|
#
|
|
my ($acc0,$acc1,$acc2,$acc3,$t3,$t4)=($acc4,$acc5,$acc0,$acc1,$acc2,$acc3);
|
|
my ($poly1, $poly3)=($acc6,$acc7);
|
|
|
|
$code.=<<___;
|
|
#lea $U2(%rsp), $a_ptr
|
|
#lea $Hsqr(%rsp), $r_ptr # 2*U1*H^2
|
|
#call __ecp_nistz256_mul_by_2 # ecp_nistz256_mul_by_2(Hsqr, U2);
|
|
|
|
add $acc0, $acc0 # a0:a3+a0:a3
|
|
lea $Rsqr(%rsp), $a_ptr
|
|
adc $acc1, $acc1
|
|
mov $acc0, $t0
|
|
adc $acc2, $acc2
|
|
adc $acc3, $acc3
|
|
mov $acc1, $t1
|
|
sbb $t4, $t4
|
|
|
|
sub \$-1, $acc0
|
|
mov $acc2, $t2
|
|
sbb $poly1, $acc1
|
|
sbb \$0, $acc2
|
|
mov $acc3, $t3
|
|
sbb $poly3, $acc3
|
|
test $t4, $t4
|
|
|
|
cmovz $t0, $acc0
|
|
mov 8*0($a_ptr), $t0
|
|
cmovz $t1, $acc1
|
|
mov 8*1($a_ptr), $t1
|
|
cmovz $t2, $acc2
|
|
mov 8*2($a_ptr), $t2
|
|
cmovz $t3, $acc3
|
|
mov 8*3($a_ptr), $t3
|
|
|
|
call __ecp_nistz256_sub$x # p256_sub(res_x, Rsqr, Hsqr);
|
|
|
|
lea $Hcub(%rsp), $b_ptr
|
|
lea $res_x(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_x, res_x, Hcub);
|
|
|
|
mov $U2+8*0(%rsp), $t0
|
|
mov $U2+8*1(%rsp), $t1
|
|
mov $U2+8*2(%rsp), $t2
|
|
mov $U2+8*3(%rsp), $t3
|
|
lea $H(%rsp), $r_ptr
|
|
|
|
call __ecp_nistz256_sub$x # p256_sub(H, U2, res_x);
|
|
|
|
mov $acc0, 8*0($r_ptr) # save the result, as
|
|
mov $acc1, 8*1($r_ptr) # __ecp_nistz256_sub doesn't
|
|
mov $acc2, 8*2($r_ptr)
|
|
mov $acc3, 8*3($r_ptr)
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
`&load_for_mul("$Hcub(%rsp)", "$in1_y(%rsp)", "$src0")`
|
|
lea $S2(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(S2, Hcub, in1_y);
|
|
|
|
`&load_for_mul("$H(%rsp)", "$R(%rsp)", "$src0")`
|
|
lea $H(%rsp), $r_ptr
|
|
call __ecp_nistz256_mul_mont$x # p256_mul_mont(H, H, R);
|
|
|
|
lea $S2(%rsp), $b_ptr
|
|
lea $res_y(%rsp), $r_ptr
|
|
call __ecp_nistz256_sub_from$x # p256_sub(res_y, H, S2);
|
|
|
|
movq %xmm0, $r_ptr # restore $r_ptr
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_z, ONE, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_z(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_z+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand .LONE_mont(%rip), %xmm2
|
|
pand .LONE_mont+0x10(%rip), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_z, in1_z, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_z(%rsp), %xmm2
|
|
pand $in1_z+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x40($r_ptr)
|
|
movdqu %xmm3, 0x50($r_ptr)
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_x, in2_x, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_x(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_x+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand $in2_x(%rsp), %xmm2
|
|
pand $in2_x+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_x, in1_x, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_x(%rsp), %xmm2
|
|
pand $in1_x+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x00($r_ptr)
|
|
movdqu %xmm3, 0x10($r_ptr)
|
|
|
|
movdqa %xmm5, %xmm0 # copy_conditional(res_y, in2_y, in1infty);
|
|
movdqa %xmm5, %xmm1
|
|
pandn $res_y(%rsp), %xmm0
|
|
movdqa %xmm5, %xmm2
|
|
pandn $res_y+0x10(%rsp), %xmm1
|
|
movdqa %xmm5, %xmm3
|
|
pand $in2_y(%rsp), %xmm2
|
|
pand $in2_y+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
|
|
movdqa %xmm4, %xmm0 # copy_conditional(res_y, in1_y, in2infty);
|
|
movdqa %xmm4, %xmm1
|
|
pandn %xmm2, %xmm0
|
|
movdqa %xmm4, %xmm2
|
|
pandn %xmm3, %xmm1
|
|
movdqa %xmm4, %xmm3
|
|
pand $in1_y(%rsp), %xmm2
|
|
pand $in1_y+0x10(%rsp), %xmm3
|
|
por %xmm0, %xmm2
|
|
por %xmm1, %xmm3
|
|
movdqu %xmm2, 0x20($r_ptr)
|
|
movdqu %xmm3, 0x30($r_ptr)
|
|
|
|
add \$32*15+8, %rsp
|
|
pop %r15
|
|
pop %r14
|
|
pop %r13
|
|
pop %r12
|
|
pop %rbx
|
|
pop %rbp
|
|
ret
|
|
.size ecp_nistz256_point_add_affine$sfx,.-ecp_nistz256_point_add_affine$sfx
|
|
___
|
|
}
|
|
&gen_add_affine("q");
|
|
|
|
########################################################################
|
|
# AD*X magic
|
|
#
|
|
if ($addx) { {
|
|
########################################################################
|
|
# operate in 4-5-0-1 "name space" that matches multiplication output
|
|
#
|
|
my ($a0,$a1,$a2,$a3,$t3,$t4)=($acc4,$acc5,$acc0,$acc1,$acc2,$acc3);
|
|
|
|
$code.=<<___;
|
|
.type __ecp_nistz256_add_tox,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_add_tox:
|
|
xor $t4, $t4
|
|
adc 8*0($b_ptr), $a0
|
|
adc 8*1($b_ptr), $a1
|
|
mov $a0, $t0
|
|
adc 8*2($b_ptr), $a2
|
|
adc 8*3($b_ptr), $a3
|
|
mov $a1, $t1
|
|
adc \$0, $t4
|
|
|
|
xor $t3, $t3
|
|
sbb \$-1, $a0
|
|
mov $a2, $t2
|
|
sbb $poly1, $a1
|
|
sbb \$0, $a2
|
|
mov $a3, $t3
|
|
sbb $poly3, $a3
|
|
|
|
bt \$0, $t4
|
|
cmovnc $t0, $a0
|
|
cmovnc $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovnc $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovnc $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_add_tox,.-__ecp_nistz256_add_tox
|
|
|
|
.type __ecp_nistz256_sub_fromx,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_sub_fromx:
|
|
xor $t4, $t4
|
|
sbb 8*0($b_ptr), $a0
|
|
sbb 8*1($b_ptr), $a1
|
|
mov $a0, $t0
|
|
sbb 8*2($b_ptr), $a2
|
|
sbb 8*3($b_ptr), $a3
|
|
mov $a1, $t1
|
|
sbb \$0, $t4
|
|
|
|
xor $t3, $t3
|
|
adc \$-1, $a0
|
|
mov $a2, $t2
|
|
adc $poly1, $a1
|
|
adc \$0, $a2
|
|
mov $a3, $t3
|
|
adc $poly3, $a3
|
|
|
|
bt \$0, $t4
|
|
cmovnc $t0, $a0
|
|
cmovnc $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovnc $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovnc $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_sub_fromx,.-__ecp_nistz256_sub_fromx
|
|
|
|
.type __ecp_nistz256_subx,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_subx:
|
|
xor $t4, $t4
|
|
sbb $a0, $t0
|
|
sbb $a1, $t1
|
|
mov $t0, $a0
|
|
sbb $a2, $t2
|
|
sbb $a3, $t3
|
|
mov $t1, $a1
|
|
sbb \$0, $t4
|
|
|
|
xor $a3 ,$a3
|
|
adc \$-1, $t0
|
|
mov $t2, $a2
|
|
adc $poly1, $t1
|
|
adc \$0, $t2
|
|
mov $t3, $a3
|
|
adc $poly3, $t3
|
|
|
|
bt \$0, $t4
|
|
cmovc $t0, $a0
|
|
cmovc $t1, $a1
|
|
cmovc $t2, $a2
|
|
cmovc $t3, $a3
|
|
|
|
ret
|
|
.size __ecp_nistz256_subx,.-__ecp_nistz256_subx
|
|
|
|
.type __ecp_nistz256_mul_by_2x,\@abi-omnipotent
|
|
.align 32
|
|
__ecp_nistz256_mul_by_2x:
|
|
xor $t4, $t4
|
|
adc $a0, $a0 # a0:a3+a0:a3
|
|
adc $a1, $a1
|
|
mov $a0, $t0
|
|
adc $a2, $a2
|
|
adc $a3, $a3
|
|
mov $a1, $t1
|
|
adc \$0, $t4
|
|
|
|
xor $t3, $t3
|
|
sbb \$-1, $a0
|
|
mov $a2, $t2
|
|
sbb $poly1, $a1
|
|
sbb \$0, $a2
|
|
mov $a3, $t3
|
|
sbb $poly3, $a3
|
|
|
|
bt \$0, $t4
|
|
cmovnc $t0, $a0
|
|
cmovnc $t1, $a1
|
|
mov $a0, 8*0($r_ptr)
|
|
cmovnc $t2, $a2
|
|
mov $a1, 8*1($r_ptr)
|
|
cmovnc $t3, $a3
|
|
mov $a2, 8*2($r_ptr)
|
|
mov $a3, 8*3($r_ptr)
|
|
|
|
ret
|
|
.size __ecp_nistz256_mul_by_2x,.-__ecp_nistz256_mul_by_2x
|
|
___
|
|
}
|
|
&gen_double("x");
|
|
&gen_add("x");
|
|
&gen_add_affine("x");
|
|
}
|
|
}}}
|
|
|
|
########################################################################
|
|
# Convert ecp_nistz256_table.c to layout expected by ecp_nistz_gather_w7
|
|
#
|
|
open TABLE,"<ecp_nistz256_table.c" or
|
|
open TABLE,"<${dir}../ecp_nistz256_table.c" or
|
|
die "failed to open ecp_nistz256_table.c:",$!;
|
|
|
|
use integer;
|
|
|
|
foreach(<TABLE>) {
|
|
s/TOBN\(\s*(0x[0-9a-f]+),\s*(0x[0-9a-f]+)\s*\)/push @arr,hex($2),hex($1)/geo;
|
|
}
|
|
close TABLE;
|
|
|
|
die "insane number of elements" if ($#arr != 64*16*37-1);
|
|
|
|
print <<___;
|
|
.text
|
|
.globl ecp_nistz256_precomputed
|
|
.type ecp_nistz256_precomputed,\@object
|
|
.align 4096
|
|
ecp_nistz256_precomputed:
|
|
___
|
|
while (@line=splice(@arr,0,16)) {
|
|
print ".long\t",join(',',map { sprintf "0x%08x",$_} @line),"\n";
|
|
}
|
|
print <<___;
|
|
.size ecp_nistz256_precomputed,.-ecp_nistz256_precomputed
|
|
___
|
|
|
|
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
|
print $code;
|
|
close STDOUT;
|