#! /usr/bin/env perl # Copyright 2014-2024 The OpenSSL Project Authors. All Rights Reserved. # Copyright (c) 2014, Intel Corporation. All Rights Reserved. # Copyright (c) 2015 CloudFlare, Inc. # # Licensed under the Apache License 2.0 (the "License"). You may not use # this file except in compliance with the License. You can obtain a copy # in the file LICENSE in the source distribution or at # https://www.openssl.org/source/license.html # # Originally written by Shay Gueron (1, 2), and Vlad Krasnov (1, 3) # (1) Intel Corporation, Israel Development Center, Haifa, Israel # (2) University of Haifa, Israel # (3) CloudFlare, Inc. # # Reference: # S.Gueron and V.Krasnov, "Fast Prime Field Elliptic Curve Cryptography with # 256 Bit Primes" # Further optimization by : # # this/original with/without -DECP_NISTZ256_ASM(*) # Opteron +15-49% +150-195% # Bulldozer +18-45% +175-240% # P4 +24-46% +100-150% # Westmere +18-34% +87-160% # Sandy Bridge +14-35% +120-185% # Ivy Bridge +11-35% +125-180% # Haswell +10-37% +160-200% # Broadwell +24-58% +210-270% # Atom +20-50% +180-240% # VIA Nano +50-160% +480-480% # # (*) "without -DECP_NISTZ256_ASM" refers to build with # "enable-ec_nistp_64_gcc_128"; # # Ranges denote minimum and maximum improvement coefficients depending # on benchmark. In "this/original" column lower coefficient is for # ECDSA sign, while in "with/without" - for ECDH key agreement, and # higher - for ECDSA sign, relatively fastest server-side operation. # Keep in mind that +100% means 2x improvement. # $output is the last argument if it looks like a file (it has an extension) # $flavour is the first argument if it doesn't look like a file $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef; $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef; $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or die "can't locate x86_64-xlate.pl"; open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"" or die "can't call $xlate: $!"; *STDOUT=*OUT; if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1` =~ /GNU assembler version ([2-9]\.[0-9]+)/) { $avx = ($1>=2.19) + ($1>=2.22); $addx = ($1>=2.23); } if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) && `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) { $avx = ($1>=2.09) + ($1>=2.10); $addx = ($1>=2.10); } if (!$addx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) && `ml64 2>&1` =~ /Version ([0-9]+)\./) { $avx = ($1>=10) + ($1>=11); $addx = ($1>=12); } if (!$addx && `$ENV{CC} -v 2>&1` =~ /((?:clang|LLVM) version|.*based on LLVM) ([0-9]+)\.([0-9]+)/) { my $ver = $2 + $3/100.0; # 3.1->3.01, 3.10->3.10 $avx = ($ver>=3.0) + ($ver>=3.01); $addx = ($ver>=3.03); } $code.=<<___; .text .extern OPENSSL_ia32cap_P # The polynomial .section .rodata align=4096 .align 64 .Lpoly: .quad 0xffffffffffffffff, 0x00000000ffffffff, 0x0000000000000000, 0xffffffff00000001 # 2^512 mod P precomputed for NIST P256 polynomial .LRR: .quad 0x0000000000000003, 0xfffffffbffffffff, 0xfffffffffffffffe, 0x00000004fffffffd .LOne: .long 1,1,1,1,1,1,1,1 .LTwo: .long 2,2,2,2,2,2,2,2 .LThree: .long 3,3,3,3,3,3,3,3 .LONE_mont: .quad 0x0000000000000001, 0xffffffff00000000, 0xffffffffffffffff, 0x00000000fffffffe # Constants for computations modulo ord(p256) .Lord: .quad 0xf3b9cac2fc632551, 0xbce6faada7179e84, 0xffffffffffffffff, 0xffffffff00000000 .LordK: .quad 0xccd1c8aaee00bc4f .previous ___ { ################################################################################ # void ecp_nistz256_mul_by_2(uint64_t res[4], uint64_t a[4]); my ($a0,$a1,$a2,$a3)=map("%r$_",(8..11)); my ($t0,$t1,$t2,$t3,$t4)=("%rax","%rdx","%rcx","%r12","%r13"); my ($r_ptr,$a_ptr,$b_ptr)=("%rdi","%rsi","%rdx"); $code.=<<___; .globl ecp_nistz256_mul_by_2 .type ecp_nistz256_mul_by_2,\@function,2 .align 64 ecp_nistz256_mul_by_2: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Lmul_by_2_body: mov 8*0($a_ptr), $a0 xor $t4,$t4 mov 8*1($a_ptr), $a1 add $a0, $a0 # a0:a3+a0:a3 mov 8*2($a_ptr), $a2 adc $a1, $a1 mov 8*3($a_ptr), $a3 lea .Lpoly(%rip), $a_ptr mov $a0, $t0 adc $a2, $a2 adc $a3, $a3 mov $a1, $t1 adc \$0, $t4 sub 8*0($a_ptr), $a0 mov $a2, $t2 sbb 8*1($a_ptr), $a1 sbb 8*2($a_ptr), $a2 mov $a3, $t3 sbb 8*3($a_ptr), $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Lmul_by_2_epilogue: ret .cfi_endproc .size ecp_nistz256_mul_by_2,.-ecp_nistz256_mul_by_2 ################################################################################ # void ecp_nistz256_div_by_2(uint64_t res[4], uint64_t a[4]); .globl ecp_nistz256_div_by_2 .type ecp_nistz256_div_by_2,\@function,2 .align 32 ecp_nistz256_div_by_2: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Ldiv_by_2_body: mov 8*0($a_ptr), $a0 mov 8*1($a_ptr), $a1 mov 8*2($a_ptr), $a2 mov $a0, $t0 mov 8*3($a_ptr), $a3 lea .Lpoly(%rip), $a_ptr mov $a1, $t1 xor $t4, $t4 add 8*0($a_ptr), $a0 mov $a2, $t2 adc 8*1($a_ptr), $a1 adc 8*2($a_ptr), $a2 mov $a3, $t3 adc 8*3($a_ptr), $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 shr \$1, $a3 shl \$63, $t4 or $t2, $a2 or $t4, $a3 mov $a0, 8*0($r_ptr) mov $a1, 8*1($r_ptr) mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Ldiv_by_2_epilogue: ret .cfi_endproc .size ecp_nistz256_div_by_2,.-ecp_nistz256_div_by_2 ################################################################################ # void ecp_nistz256_mul_by_3(uint64_t res[4], uint64_t a[4]); .globl ecp_nistz256_mul_by_3 .type ecp_nistz256_mul_by_3,\@function,2 .align 32 ecp_nistz256_mul_by_3: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Lmul_by_3_body: mov 8*0($a_ptr), $a0 xor $t4, $t4 mov 8*1($a_ptr), $a1 add $a0, $a0 # a0:a3+a0:a3 mov 8*2($a_ptr), $a2 adc $a1, $a1 mov 8*3($a_ptr), $a3 mov $a0, $t0 adc $a2, $a2 adc $a3, $a3 mov $a1, $t1 adc \$0, $t4 sub \$-1, $a0 mov $a2, $t2 sbb .Lpoly+8*1(%rip), $a1 sbb \$0, $a2 mov $a3, $t3 sbb .Lpoly+8*3(%rip), $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 cmovc $t2, $a2 cmovc $t3, $a3 xor $t4, $t4 add 8*0($a_ptr), $a0 # a0:a3+=a_ptr[0:3] adc 8*1($a_ptr), $a1 mov $a0, $t0 adc 8*2($a_ptr), $a2 adc 8*3($a_ptr), $a3 mov $a1, $t1 adc \$0, $t4 sub \$-1, $a0 mov $a2, $t2 sbb .Lpoly+8*1(%rip), $a1 sbb \$0, $a2 mov $a3, $t3 sbb .Lpoly+8*3(%rip), $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Lmul_by_3_epilogue: ret .cfi_endproc .size ecp_nistz256_mul_by_3,.-ecp_nistz256_mul_by_3 ################################################################################ # void ecp_nistz256_add(uint64_t res[4], uint64_t a[4], uint64_t b[4]); .globl ecp_nistz256_add .type ecp_nistz256_add,\@function,3 .align 32 ecp_nistz256_add: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Ladd_body: mov 8*0($a_ptr), $a0 xor $t4, $t4 mov 8*1($a_ptr), $a1 mov 8*2($a_ptr), $a2 mov 8*3($a_ptr), $a3 lea .Lpoly(%rip), $a_ptr add 8*0($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 adc \$0, $t4 sub 8*0($a_ptr), $a0 mov $a2, $t2 sbb 8*1($a_ptr), $a1 sbb 8*2($a_ptr), $a2 mov $a3, $t3 sbb 8*3($a_ptr), $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Ladd_epilogue: ret .cfi_endproc .size ecp_nistz256_add,.-ecp_nistz256_add ################################################################################ # void ecp_nistz256_sub(uint64_t res[4], uint64_t a[4], uint64_t b[4]); .globl ecp_nistz256_sub .type ecp_nistz256_sub,\@function,3 .align 32 ecp_nistz256_sub: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Lsub_body: mov 8*0($a_ptr), $a0 xor $t4, $t4 mov 8*1($a_ptr), $a1 mov 8*2($a_ptr), $a2 mov 8*3($a_ptr), $a3 lea .Lpoly(%rip), $a_ptr sub 8*0($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 \$0, $t4 add 8*0($a_ptr), $a0 mov $a2, $t2 adc 8*1($a_ptr), $a1 adc 8*2($a_ptr), $a2 mov $a3, $t3 adc 8*3($a_ptr), $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) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Lsub_epilogue: ret .cfi_endproc .size ecp_nistz256_sub,.-ecp_nistz256_sub ################################################################################ # void ecp_nistz256_neg(uint64_t res[4], uint64_t a[4]); .globl ecp_nistz256_neg .type ecp_nistz256_neg,\@function,2 .align 32 ecp_nistz256_neg: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Lneg_body: xor $a0, $a0 xor $a1, $a1 xor $a2, $a2 xor $a3, $a3 xor $t4, $t4 sub 8*0($a_ptr), $a0 sbb 8*1($a_ptr), $a1 sbb 8*2($a_ptr), $a2 mov $a0, $t0 sbb 8*3($a_ptr), $a3 lea .Lpoly(%rip), $a_ptr mov $a1, $t1 sbb \$0, $t4 add 8*0($a_ptr), $a0 mov $a2, $t2 adc 8*1($a_ptr), $a1 adc 8*2($a_ptr), $a2 mov $a3, $t3 adc 8*3($a_ptr), $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) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Lneg_epilogue: ret .cfi_endproc .size ecp_nistz256_neg,.-ecp_nistz256_neg ___ } { 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)=("%rcx","%rbp","%rbx","%rdx","%rax"); my ($poly1,$poly3)=($acc6,$acc7); $code.=<<___; ################################################################################ # void ecp_nistz256_ord_mul_mont( # uint64_t res[4], # uint64_t a[4], # uint64_t b[4]); .globl ecp_nistz256_ord_mul_mont .type ecp_nistz256_ord_mul_mont,\@function,3 .align 32 ecp_nistz256_ord_mul_mont: .cfi_startproc ___ $code.=<<___ if ($addx); mov \$0x80100, %ecx and OPENSSL_ia32cap_P+8(%rip), %ecx cmp \$0x80100, %ecx je .Lecp_nistz256_ord_mul_montx ___ $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lord_mul_body: mov 8*0($b_org), %rax mov $b_org, $b_ptr lea .Lord(%rip), %r14 mov .LordK(%rip), %r15 ################################# * b[0] mov %rax, $t0 mulq 8*0($a_ptr) mov %rax, $acc0 mov $t0, %rax mov %rdx, $acc1 mulq 8*1($a_ptr) add %rax, $acc1 mov $t0, %rax adc \$0, %rdx mov %rdx, $acc2 mulq 8*2($a_ptr) add %rax, $acc2 mov $t0, %rax adc \$0, %rdx mov $acc0, $acc5 imulq %r15,$acc0 mov %rdx, $acc3 mulq 8*3($a_ptr) add %rax, $acc3 mov $acc0, %rax adc \$0, %rdx mov %rdx, $acc4 ################################# First reduction step mulq 8*0(%r14) mov $acc0, $t1 add %rax, $acc5 # guaranteed to be zero mov $acc0, %rax adc \$0, %rdx mov %rdx, $t0 sub $acc0, $acc2 sbb \$0, $acc0 # can't borrow mulq 8*1(%r14) add $t0, $acc1 adc \$0, %rdx add %rax, $acc1 mov $t1, %rax adc %rdx, $acc2 mov $t1, %rdx adc \$0, $acc0 # can't overflow shl \$32, %rax shr \$32, %rdx sub %rax, $acc3 mov 8*1($b_ptr), %rax sbb %rdx, $t1 # can't borrow add $acc0, $acc3 adc $t1, $acc4 adc \$0, $acc5 ################################# * b[1] mov %rax, $t0 mulq 8*0($a_ptr) add %rax, $acc1 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*1($a_ptr) add $t1, $acc2 adc \$0, %rdx add %rax, $acc2 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*2($a_ptr) add $t1, $acc3 adc \$0, %rdx add %rax, $acc3 mov $t0, %rax adc \$0, %rdx mov $acc1, $t0 imulq %r15, $acc1 mov %rdx, $t1 mulq 8*3($a_ptr) add $t1, $acc4 adc \$0, %rdx xor $acc0, $acc0 add %rax, $acc4 mov $acc1, %rax adc %rdx, $acc5 adc \$0, $acc0 ################################# Second reduction step mulq 8*0(%r14) mov $acc1, $t1 add %rax, $t0 # guaranteed to be zero mov $acc1, %rax adc %rdx, $t0 sub $acc1, $acc3 sbb \$0, $acc1 # can't borrow mulq 8*1(%r14) add $t0, $acc2 adc \$0, %rdx add %rax, $acc2 mov $t1, %rax adc %rdx, $acc3 mov $t1, %rdx adc \$0, $acc1 # can't overflow shl \$32, %rax shr \$32, %rdx sub %rax, $acc4 mov 8*2($b_ptr), %rax sbb %rdx, $t1 # can't borrow add $acc1, $acc4 adc $t1, $acc5 adc \$0, $acc0 ################################## * b[2] mov %rax, $t0 mulq 8*0($a_ptr) add %rax, $acc2 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*1($a_ptr) add $t1, $acc3 adc \$0, %rdx add %rax, $acc3 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*2($a_ptr) add $t1, $acc4 adc \$0, %rdx add %rax, $acc4 mov $t0, %rax adc \$0, %rdx mov $acc2, $t0 imulq %r15, $acc2 mov %rdx, $t1 mulq 8*3($a_ptr) add $t1, $acc5 adc \$0, %rdx xor $acc1, $acc1 add %rax, $acc5 mov $acc2, %rax adc %rdx, $acc0 adc \$0, $acc1 ################################# Third reduction step mulq 8*0(%r14) mov $acc2, $t1 add %rax, $t0 # guaranteed to be zero mov $acc2, %rax adc %rdx, $t0 sub $acc2, $acc4 sbb \$0, $acc2 # can't borrow mulq 8*1(%r14) add $t0, $acc3 adc \$0, %rdx add %rax, $acc3 mov $t1, %rax adc %rdx, $acc4 mov $t1, %rdx adc \$0, $acc2 # can't overflow shl \$32, %rax shr \$32, %rdx sub %rax, $acc5 mov 8*3($b_ptr), %rax sbb %rdx, $t1 # can't borrow add $acc2, $acc5 adc $t1, $acc0 adc \$0, $acc1 ################################# * b[3] mov %rax, $t0 mulq 8*0($a_ptr) add %rax, $acc3 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*1($a_ptr) add $t1, $acc4 adc \$0, %rdx add %rax, $acc4 mov $t0, %rax adc \$0, %rdx mov %rdx, $t1 mulq 8*2($a_ptr) add $t1, $acc5 adc \$0, %rdx add %rax, $acc5 mov $t0, %rax adc \$0, %rdx mov $acc3, $t0 imulq %r15, $acc3 mov %rdx, $t1 mulq 8*3($a_ptr) add $t1, $acc0 adc \$0, %rdx xor $acc2, $acc2 add %rax, $acc0 mov $acc3, %rax adc %rdx, $acc1 adc \$0, $acc2 ################################# Last reduction step mulq 8*0(%r14) mov $acc3, $t1 add %rax, $t0 # guaranteed to be zero mov $acc3, %rax adc %rdx, $t0 sub $acc3, $acc5 sbb \$0, $acc3 # can't borrow mulq 8*1(%r14) add $t0, $acc4 adc \$0, %rdx add %rax, $acc4 mov $t1, %rax adc %rdx, $acc5 mov $t1, %rdx adc \$0, $acc3 # can't overflow shl \$32, %rax shr \$32, %rdx sub %rax, $acc0 sbb %rdx, $t1 # can't borrow add $acc3, $acc0 adc $t1, $acc1 adc \$0, $acc2 ################################# Subtract ord mov $acc4, $a_ptr sub 8*0(%r14), $acc4 mov $acc5, $acc3 sbb 8*1(%r14), $acc5 mov $acc0, $t0 sbb 8*2(%r14), $acc0 mov $acc1, $t1 sbb 8*3(%r14), $acc1 sbb \$0, $acc2 cmovc $a_ptr, $acc4 cmovc $acc3, $acc5 cmovc $t0, $acc0 cmovc $t1, $acc1 mov $acc4, 8*0($r_ptr) mov $acc5, 8*1($r_ptr) mov $acc0, 8*2($r_ptr) mov $acc1, 8*3($r_ptr) mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lord_mul_epilogue: ret .cfi_endproc .size ecp_nistz256_ord_mul_mont,.-ecp_nistz256_ord_mul_mont ################################################################################ # void ecp_nistz256_ord_sqr_mont( # uint64_t res[4], # uint64_t a[4], # uint64_t rep); .globl ecp_nistz256_ord_sqr_mont .type ecp_nistz256_ord_sqr_mont,\@function,3 .align 32 ecp_nistz256_ord_sqr_mont: .cfi_startproc ___ $code.=<<___ if ($addx); mov \$0x80100, %ecx and OPENSSL_ia32cap_P+8(%rip), %ecx cmp \$0x80100, %ecx je .Lecp_nistz256_ord_sqr_montx ___ $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lord_sqr_body: mov 8*0($a_ptr), $acc0 mov 8*1($a_ptr), %rax mov 8*2($a_ptr), $acc6 mov 8*3($a_ptr), $acc7 lea .Lord(%rip), $a_ptr # pointer to modulus mov $b_org, $b_ptr jmp .Loop_ord_sqr .align 32 .Loop_ord_sqr: ################################# a[1:] * a[0] mov %rax, $t1 # put aside a[1] mul $acc0 # a[1] * a[0] mov %rax, $acc1 movq $t1, %xmm1 # offload a[1] mov $acc6, %rax mov %rdx, $acc2 mul $acc0 # a[2] * a[0] add %rax, $acc2 mov $acc7, %rax movq $acc6, %xmm2 # offload a[2] adc \$0, %rdx mov %rdx, $acc3 mul $acc0 # a[3] * a[0] add %rax, $acc3 mov $acc7, %rax movq $acc7, %xmm3 # offload a[3] adc \$0, %rdx mov %rdx, $acc4 ################################# a[3] * a[2] mul $acc6 # a[3] * a[2] mov %rax, $acc5 mov $acc6, %rax mov %rdx, $acc6 ################################# a[2:] * a[1] mul $t1 # a[2] * a[1] add %rax, $acc3 mov $acc7, %rax adc \$0, %rdx mov %rdx, $acc7 mul $t1 # a[3] * a[1] add %rax, $acc4 adc \$0, %rdx add $acc7, $acc4 adc %rdx, $acc5 adc \$0, $acc6 # can't overflow ################################# *2 xor $acc7, $acc7 mov $acc0, %rax add $acc1, $acc1 adc $acc2, $acc2 adc $acc3, $acc3 adc $acc4, $acc4 adc $acc5, $acc5 adc $acc6, $acc6 adc \$0, $acc7 ################################# Missing products mul %rax # a[0] * a[0] mov %rax, $acc0 movq %xmm1, %rax mov %rdx, $t1 mul %rax # a[1] * a[1] add $t1, $acc1 adc %rax, $acc2 movq %xmm2, %rax adc \$0, %rdx mov %rdx, $t1 mul %rax # a[2] * a[2] add $t1, $acc3 adc %rax, $acc4 movq %xmm3, %rax adc \$0, %rdx mov %rdx, $t1 mov $acc0, $t0 imulq 8*4($a_ptr), $acc0 # *= .LordK mul %rax # a[3] * a[3] add $t1, $acc5 adc %rax, $acc6 mov 8*0($a_ptr), %rax # modulus[0] adc %rdx, $acc7 # can't overflow ################################# First reduction step mul $acc0 mov $acc0, $t1 add %rax, $t0 # guaranteed to be zero mov 8*1($a_ptr), %rax # modulus[1] adc %rdx, $t0 sub $acc0, $acc2 sbb \$0, $t1 # can't borrow mul $acc0 add $t0, $acc1 adc \$0, %rdx add %rax, $acc1 mov $acc0, %rax adc %rdx, $acc2 mov $acc0, %rdx adc \$0, $t1 # can't overflow mov $acc1, $t0 imulq 8*4($a_ptr), $acc1 # *= .LordK shl \$32, %rax shr \$32, %rdx sub %rax, $acc3 mov 8*0($a_ptr), %rax sbb %rdx, $acc0 # can't borrow add $t1, $acc3 adc \$0, $acc0 # can't overflow ################################# Second reduction step mul $acc1 mov $acc1, $t1 add %rax, $t0 # guaranteed to be zero mov 8*1($a_ptr), %rax adc %rdx, $t0 sub $acc1, $acc3 sbb \$0, $t1 # can't borrow mul $acc1 add $t0, $acc2 adc \$0, %rdx add %rax, $acc2 mov $acc1, %rax adc %rdx, $acc3 mov $acc1, %rdx adc \$0, $t1 # can't overflow mov $acc2, $t0 imulq 8*4($a_ptr), $acc2 # *= .LordK shl \$32, %rax shr \$32, %rdx sub %rax, $acc0 mov 8*0($a_ptr), %rax sbb %rdx, $acc1 # can't borrow add $t1, $acc0 adc \$0, $acc1 # can't overflow ################################# Third reduction step mul $acc2 mov $acc2, $t1 add %rax, $t0 # guaranteed to be zero mov 8*1($a_ptr), %rax adc %rdx, $t0 sub $acc2, $acc0 sbb \$0, $t1 # can't borrow mul $acc2 add $t0, $acc3 adc \$0, %rdx add %rax, $acc3 mov $acc2, %rax adc %rdx, $acc0 mov $acc2, %rdx adc \$0, $t1 # can't overflow mov $acc3, $t0 imulq 8*4($a_ptr), $acc3 # *= .LordK shl \$32, %rax shr \$32, %rdx sub %rax, $acc1 mov 8*0($a_ptr), %rax sbb %rdx, $acc2 # can't borrow add $t1, $acc1 adc \$0, $acc2 # can't overflow ################################# Last reduction step mul $acc3 mov $acc3, $t1 add %rax, $t0 # guaranteed to be zero mov 8*1($a_ptr), %rax adc %rdx, $t0 sub $acc3, $acc1 sbb \$0, $t1 # can't borrow mul $acc3 add $t0, $acc0 adc \$0, %rdx add %rax, $acc0 mov $acc3, %rax adc %rdx, $acc1 mov $acc3, %rdx adc \$0, $t1 # can't overflow shl \$32, %rax shr \$32, %rdx sub %rax, $acc2 sbb %rdx, $acc3 # can't borrow add $t1, $acc2 adc \$0, $acc3 # can't overflow ################################# Add bits [511:256] of the sqr result xor %rdx, %rdx add $acc4, $acc0 adc $acc5, $acc1 mov $acc0, $acc4 adc $acc6, $acc2 adc $acc7, $acc3 mov $acc1, %rax adc \$0, %rdx ################################# Compare to modulus sub 8*0($a_ptr), $acc0 mov $acc2, $acc6 sbb 8*1($a_ptr), $acc1 sbb 8*2($a_ptr), $acc2 mov $acc3, $acc7 sbb 8*3($a_ptr), $acc3 sbb \$0, %rdx cmovc $acc4, $acc0 cmovnc $acc1, %rax cmovnc $acc2, $acc6 cmovnc $acc3, $acc7 dec $b_ptr jnz .Loop_ord_sqr mov $acc0, 8*0($r_ptr) mov %rax, 8*1($r_ptr) pxor %xmm1, %xmm1 mov $acc6, 8*2($r_ptr) pxor %xmm2, %xmm2 mov $acc7, 8*3($r_ptr) pxor %xmm3, %xmm3 mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lord_sqr_epilogue: ret .cfi_endproc .size ecp_nistz256_ord_sqr_mont,.-ecp_nistz256_ord_sqr_mont ___ $code.=<<___ if ($addx); ################################################################################ .type ecp_nistz256_ord_mul_montx,\@function,3 .align 32 ecp_nistz256_ord_mul_montx: .cfi_startproc .Lecp_nistz256_ord_mul_montx: push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lord_mulx_body: 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 lea .Lord-128(%rip), %r14 mov .LordK(%rip), %r15 ################################# Multiply by b[0] mulx $acc1, $acc0, $acc1 mulx $acc2, $t0, $acc2 mulx $acc3, $t1, $acc3 add $t0, $acc1 mulx $acc4, $t0, $acc4 mov $acc0, %rdx mulx %r15, %rdx, %rax adc $t1, $acc2 adc $t0, $acc3 adc \$0, $acc4 ################################# reduction xor $acc5, $acc5 # $acc5=0, cf=0, of=0 mulx 8*0+128(%r14), $t0, $t1 adcx $t0, $acc0 # guaranteed to be zero adox $t1, $acc1 mulx 8*1+128(%r14), $t0, $t1 adcx $t0, $acc1 adox $t1, $acc2 mulx 8*2+128(%r14), $t0, $t1 adcx $t0, $acc2 adox $t1, $acc3 mulx 8*3+128(%r14), $t0, $t1 mov 8*1($b_ptr), %rdx adcx $t0, $acc3 adox $t1, $acc4 adcx $acc0, $acc4 adox $acc0, $acc5 adc \$0, $acc5 # cf=0, of=0 ################################# Multiply by b[1] mulx 8*0+128($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 mulx %r15, %rdx, %rax adcx $t0, $acc4 adox $t1, $acc5 adcx $acc0, $acc5 adox $acc0, $acc0 adc \$0, $acc0 # cf=0, of=0 ################################# reduction mulx 8*0+128(%r14), $t0, $t1 adcx $t0, $acc1 # guaranteed to be zero adox $t1, $acc2 mulx 8*1+128(%r14), $t0, $t1 adcx $t0, $acc2 adox $t1, $acc3 mulx 8*2+128(%r14), $t0, $t1 adcx $t0, $acc3 adox $t1, $acc4 mulx 8*3+128(%r14), $t0, $t1 mov 8*2($b_ptr), %rdx adcx $t0, $acc4 adox $t1, $acc5 adcx $acc1, $acc5 adox $acc1, $acc0 adc \$0, $acc0 # cf=0, of=0 ################################# Multiply by b[2] mulx 8*0+128($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 mulx %r15, %rdx, %rax adcx $t0, $acc5 adox $t1, $acc0 adcx $acc1, $acc0 adox $acc1, $acc1 adc \$0, $acc1 # cf=0, of=0 ################################# reduction mulx 8*0+128(%r14), $t0, $t1 adcx $t0, $acc2 # guaranteed to be zero adox $t1, $acc3 mulx 8*1+128(%r14), $t0, $t1 adcx $t0, $acc3 adox $t1, $acc4 mulx 8*2+128(%r14), $t0, $t1 adcx $t0, $acc4 adox $t1, $acc5 mulx 8*3+128(%r14), $t0, $t1 mov 8*3($b_ptr), %rdx adcx $t0, $acc5 adox $t1, $acc0 adcx $acc2, $acc0 adox $acc2, $acc1 adc \$0, $acc1 # cf=0, of=0 ################################# Multiply by b[3] mulx 8*0+128($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 mulx %r15, %rdx, %rax adcx $t0, $acc0 adox $t1, $acc1 adcx $acc2, $acc1 adox $acc2, $acc2 adc \$0, $acc2 # cf=0, of=0 ################################# reduction mulx 8*0+128(%r14), $t0, $t1 adcx $t0, $acc3 # guaranteed to be zero adox $t1, $acc4 mulx 8*1+128(%r14), $t0, $t1 adcx $t0, $acc4 adox $t1, $acc5 mulx 8*2+128(%r14), $t0, $t1 adcx $t0, $acc5 adox $t1, $acc0 mulx 8*3+128(%r14), $t0, $t1 lea 128(%r14),%r14 mov $acc4, $t2 adcx $t0, $acc0 adox $t1, $acc1 mov $acc5, $t3 adcx $acc3, $acc1 adox $acc3, $acc2 adc \$0, $acc2 ################################# # Branch-less conditional subtraction of P mov $acc0, $t0 sub 8*0(%r14), $acc4 sbb 8*1(%r14), $acc5 sbb 8*2(%r14), $acc0 mov $acc1, $t1 sbb 8*3(%r14), $acc1 sbb \$0, $acc2 cmovc $t2, $acc4 cmovc $t3, $acc5 cmovc $t0, $acc0 cmovc $t1, $acc1 mov $acc4, 8*0($r_ptr) mov $acc5, 8*1($r_ptr) mov $acc0, 8*2($r_ptr) mov $acc1, 8*3($r_ptr) mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lord_mulx_epilogue: ret .cfi_endproc .size ecp_nistz256_ord_mul_montx,.-ecp_nistz256_ord_mul_montx .type ecp_nistz256_ord_sqr_montx,\@function,3 .align 32 ecp_nistz256_ord_sqr_montx: .cfi_startproc .Lecp_nistz256_ord_sqr_montx: push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lord_sqrx_body: mov $b_org, $b_ptr mov 8*0($a_ptr), %rdx mov 8*1($a_ptr), $acc6 mov 8*2($a_ptr), $acc7 mov 8*3($a_ptr), $acc0 lea .Lord(%rip), $a_ptr jmp .Loop_ord_sqrx .align 32 .Loop_ord_sqrx: mulx $acc6, $acc1, $acc2 # a[0]*a[1] mulx $acc7, $t0, $acc3 # a[0]*a[2] mov %rdx, %rax # offload a[0] movq $acc6, %xmm1 # offload a[1] mulx $acc0, $t1, $acc4 # a[0]*a[3] mov $acc6, %rdx add $t0, $acc2 movq $acc7, %xmm2 # offload a[2] 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 %rax, %rdx movq $acc0, %xmm3 # offload a[3] 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 ################################# a[i]*a[i] mulx %rdx, $acc0, $t1 movq %xmm1, %rdx adcx $acc3, $acc3 adox $t1, $acc1 adcx $acc4, $acc4 mulx %rdx, $t0, $t4 movq %xmm2, %rdx adcx $acc5, $acc5 adox $t0, $acc2 adcx $acc6, $acc6 mulx %rdx, $t0, $t1 .byte 0x67 movq %xmm3, %rdx adox $t4, $acc3 adcx $acc7, $acc7 adox $t0, $acc4 adox $t1, $acc5 mulx %rdx, $t0, $t4 adox $t0, $acc6 adox $t4, $acc7 ################################# reduction mov $acc0, %rdx mulx 8*4($a_ptr), %rdx, $t0 xor %rax, %rax # cf=0, of=0 mulx 8*0($a_ptr), $t0, $t1 adcx $t0, $acc0 # guaranteed to be zero adox $t1, $acc1 mulx 8*1($a_ptr), $t0, $t1 adcx $t0, $acc1 adox $t1, $acc2 mulx 8*2($a_ptr), $t0, $t1 adcx $t0, $acc2 adox $t1, $acc3 mulx 8*3($a_ptr), $t0, $t1 adcx $t0, $acc3 adox $t1, $acc0 # of=0 adcx %rax, $acc0 # cf=0 ################################# mov $acc1, %rdx mulx 8*4($a_ptr), %rdx, $t0 mulx 8*0($a_ptr), $t0, $t1 adox $t0, $acc1 # guaranteed to be zero adcx $t1, $acc2 mulx 8*1($a_ptr), $t0, $t1 adox $t0, $acc2 adcx $t1, $acc3 mulx 8*2($a_ptr), $t0, $t1 adox $t0, $acc3 adcx $t1, $acc0 mulx 8*3($a_ptr), $t0, $t1 adox $t0, $acc0 adcx $t1, $acc1 # cf=0 adox %rax, $acc1 # of=0 ################################# mov $acc2, %rdx mulx 8*4($a_ptr), %rdx, $t0 mulx 8*0($a_ptr), $t0, $t1 adcx $t0, $acc2 # guaranteed to be zero adox $t1, $acc3 mulx 8*1($a_ptr), $t0, $t1 adcx $t0, $acc3 adox $t1, $acc0 mulx 8*2($a_ptr), $t0, $t1 adcx $t0, $acc0 adox $t1, $acc1 mulx 8*3($a_ptr), $t0, $t1 adcx $t0, $acc1 adox $t1, $acc2 # of=0 adcx %rax, $acc2 # cf=0 ################################# mov $acc3, %rdx mulx 8*4($a_ptr), %rdx, $t0 mulx 8*0($a_ptr), $t0, $t1 adox $t0, $acc3 # guaranteed to be zero adcx $t1, $acc0 mulx 8*1($a_ptr), $t0, $t1 adox $t0, $acc0 adcx $t1, $acc1 mulx 8*2($a_ptr), $t0, $t1 adox $t0, $acc1 adcx $t1, $acc2 mulx 8*3($a_ptr), $t0, $t1 adox $t0, $acc2 adcx $t1, $acc3 adox %rax, $acc3 ################################# accumulate upper half add $acc0, $acc4 # add $acc4, $acc0 adc $acc5, $acc1 mov $acc4, %rdx adc $acc6, $acc2 adc $acc7, $acc3 mov $acc1, $acc6 adc \$0, %rax ################################# compare to modulus sub 8*0($a_ptr), $acc4 mov $acc2, $acc7 sbb 8*1($a_ptr), $acc1 sbb 8*2($a_ptr), $acc2 mov $acc3, $acc0 sbb 8*3($a_ptr), $acc3 sbb \$0, %rax cmovnc $acc4, %rdx cmovnc $acc1, $acc6 cmovnc $acc2, $acc7 cmovnc $acc3, $acc0 dec $b_ptr jnz .Loop_ord_sqrx mov %rdx, 8*0($r_ptr) mov $acc6, 8*1($r_ptr) pxor %xmm1, %xmm1 mov $acc7, 8*2($r_ptr) pxor %xmm2, %xmm2 mov $acc0, 8*3($r_ptr) pxor %xmm3, %xmm3 mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lord_sqrx_epilogue: ret .cfi_endproc .size ecp_nistz256_ord_sqr_montx,.-ecp_nistz256_ord_sqr_montx ___ $code.=<<___; ################################################################################ # void ecp_nistz256_to_mont( # uint64_t res[4], # uint64_t in[4]); .globl ecp_nistz256_to_mont .type ecp_nistz256_to_mont,\@function,2 .align 32 ecp_nistz256_to_mont: .cfi_startproc ___ $code.=<<___ if ($addx); mov \$0x80100, %ecx and OPENSSL_ia32cap_P+8(%rip), %ecx ___ $code.=<<___; lea .LRR(%rip), $b_org jmp .Lmul_mont .cfi_endproc .size ecp_nistz256_to_mont,.-ecp_nistz256_to_mont ################################################################################ # void ecp_nistz256_mul_mont( # uint64_t res[4], # uint64_t a[4], # uint64_t b[4]); .globl ecp_nistz256_mul_mont .type ecp_nistz256_mul_mont,\@function,3 .align 32 ecp_nistz256_mul_mont: .cfi_startproc ___ $code.=<<___ if ($addx); mov \$0x80100, %ecx and OPENSSL_ia32cap_P+8(%rip), %ecx ___ $code.=<<___; .Lmul_mont: push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lmul_body: ___ $code.=<<___ if ($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: mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lmul_epilogue: ret .cfi_endproc .size ecp_nistz256_mul_mont,.-ecp_nistz256_mul_mont .type __ecp_nistz256_mul_montq,\@abi-omnipotent .align 32 __ecp_nistz256_mul_montq: .cfi_startproc ######################################################################## # 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 .cfi_endproc .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: .cfi_startproc ___ $code.=<<___ if ($addx); mov \$0x80100, %ecx and OPENSSL_ia32cap_P+8(%rip), %ecx ___ $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 .Lsqr_body: ___ $code.=<<___ if ($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: mov 0(%rsp),%r15 .cfi_restore %r15 mov 8(%rsp),%r14 .cfi_restore %r14 mov 16(%rsp),%r13 .cfi_restore %r13 mov 24(%rsp),%r12 .cfi_restore %r12 mov 32(%rsp),%rbx .cfi_restore %rbx mov 40(%rsp),%rbp .cfi_restore %rbp lea 48(%rsp),%rsp .cfi_adjust_cfa_offset -48 .Lsqr_epilogue: ret .cfi_endproc .size ecp_nistz256_sqr_mont,.-ecp_nistz256_sqr_mont .type __ecp_nistz256_sqr_montq,\@abi-omnipotent .align 32 __ecp_nistz256_sqr_montq: .cfi_startproc 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 .cfi_endproc .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: .cfi_startproc ######################################################################## # 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 .cfi_endproc .size __ecp_nistz256_mul_montx,.-__ecp_nistz256_mul_montx .type __ecp_nistz256_sqr_montx,\@abi-omnipotent .align 32 __ecp_nistz256_sqr_montx: .cfi_startproc 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 .Lpoly+8*3(%rip), %rdx adox $t0, $acc6 shlx $a_ptr, $acc0, $t0 adox $t4, $acc7 shrx $a_ptr, $acc0, $t4 mov %rdx,$t1 # reduction step 1 add $t0, $acc1 adc $t4, $acc2 mulx $acc0, $t0, $acc0 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 $acc1, $t0, $acc1 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 $acc2, $t0, $acc2 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 $acc3, $t0, $acc3 adc $t0, $acc2 adc \$0, $acc3 xor $t3, $t3 add $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 sub \$-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 .cfi_endproc .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"); $code.=<<___; ################################################################################ # void ecp_nistz256_from_mont( # uint64_t res[4], # uint64_t in[4]); # This one performs Montgomery multiplication by 1, so we only need the reduction .globl ecp_nistz256_from_mont .type ecp_nistz256_from_mont,\@function,2 .align 32 ecp_nistz256_from_mont: .cfi_startproc push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 .Lfrom_body: mov 8*0($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) mov 0(%rsp),%r13 .cfi_restore %r13 mov 8(%rsp),%r12 .cfi_restore %r12 lea 16(%rsp),%rsp .cfi_adjust_cfa_offset -16 .Lfrom_epilogue: ret .cfi_endproc .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)); $code.=<<___; ################################################################################ # void ecp_nistz256_scatter_w5(uint64_t *val, uint64_t *in_t, int index); .globl ecp_nistz256_scatter_w5 .type ecp_nistz256_scatter_w5,\@abi-omnipotent .align 32 ecp_nistz256_scatter_w5: .cfi_startproc lea -3($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 .cfi_endproc .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: .cfi_startproc ___ $code.=<<___ if ($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 ___ $code.=<<___; ret .cfi_endproc .LSEH_end_ecp_nistz256_gather_w5: .size ecp_nistz256_gather_w5,.-ecp_nistz256_gather_w5 ################################################################################ # void ecp_nistz256_scatter_w7(uint64_t *val, uint64_t *in_t, int index); .globl ecp_nistz256_scatter_w7 .type ecp_nistz256_scatter_w7,\@abi-omnipotent .align 32 ecp_nistz256_scatter_w7: .cfi_startproc movdqu 0x00($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 .cfi_endproc .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: .cfi_startproc ___ $code.=<<___ if ($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 ___ $code.=<<___; ret .cfi_endproc .LSEH_end_ecp_nistz256_gather_w7: .size ecp_nistz256_gather_w7,.-ecp_nistz256_gather_w7 ___ } if ($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: .cfi_startproc .Lavx2_gather_w5: vzeroupper ___ $code.=<<___ if ($win64); lea -0x88(%rsp), %rax mov %rsp,%r11 .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 (%r11), %rsp ___ $code.=<<___; ret .cfi_endproc .LSEH_end_ecp_nistz256_avx2_gather_w5: .size ecp_nistz256_avx2_gather_w5,.-ecp_nistz256_avx2_gather_w5 ___ } if ($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: .cfi_startproc .Lavx2_gather_w7: vzeroupper ___ $code.=<<___ if ($win64); mov %rsp,%r11 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 (%r11), %rsp ___ $code.=<<___; ret .cfi_endproc .LSEH_end_ecp_nistz256_avx2_gather_w7: .size ecp_nistz256_avx2_gather_w7,.-ecp_nistz256_avx2_gather_w7 ___ } else { $code.=<<___; .globl ecp_nistz256_avx2_gather_w7 .type ecp_nistz256_avx2_gather_w7,\@function,3 .align 32 ecp_nistz256_avx2_gather_w7: .cfi_startproc .byte 0x0f,0x0b # ud2 ret .cfi_endproc .size ecp_nistz256_avx2_gather_w7,.-ecp_nistz256_avx2_gather_w7 ___ } {{{ ######################################################################## # This block implements higher level point_double, point_add and # point_add_affine. The key to performance in this case is to allow # out-of-order execution logic to overlap computations from next step # with tail processing from current step. By using tailored calling # sequence we minimize inter-step overhead to give processor better # shot at overlapping operations... # # You will notice that input data is copied to stack. Trouble is that # there are no registers to spare for holding original pointers and # reloading them, pointers, would create undesired dependencies on # effective addresses calculation paths. In other words it's too done # to favour out-of-order execution logic. # my ($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: .cfi_startproc xor $t4,$t4 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 adc \$0, $t4 sub \$-1, $a0 mov $a2, $t2 sbb $poly1, $a1 sbb \$0, $a2 mov $a3, $t3 sbb $poly3, $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) ret .cfi_endproc .size __ecp_nistz256_add_toq,.-__ecp_nistz256_add_toq .type __ecp_nistz256_sub_fromq,\@abi-omnipotent .align 32 __ecp_nistz256_sub_fromq: .cfi_startproc 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 .cfi_endproc .size __ecp_nistz256_sub_fromq,.-__ecp_nistz256_sub_fromq .type __ecp_nistz256_subq,\@abi-omnipotent .align 32 __ecp_nistz256_subq: .cfi_startproc 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 .cfi_endproc .size __ecp_nistz256_subq,.-__ecp_nistz256_subq .type __ecp_nistz256_mul_by_2q,\@abi-omnipotent .align 32 __ecp_nistz256_mul_by_2q: .cfi_startproc xor $t4, $t4 add $a0, $a0 # a0:a3+a0:a3 adc $a1, $a1 mov $a0, $t0 adc $a2, $a2 adc $a3, $a3 mov $a1, $t1 adc \$0, $t4 sub \$-1, $a0 mov $a2, $t2 sbb $poly1, $a1 sbb \$0, $a2 mov $a3, $t3 sbb $poly3, $a3 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) ret .cfi_endproc .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: .cfi_startproc ___ $code.=<<___ if ($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: .cfi_startproc .Lpoint_doublex: ___ } $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 sub \$32*5+8, %rsp .cfi_adjust_cfa_offset 32*5+8 .Lpoint_double${x}_body: .Lpoint_double_shortcut$x: movdqu 0x00($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); lea 32*5+56(%rsp), %rsi .cfi_def_cfa %rsi,8 mov -48(%rsi),%r15 .cfi_restore %r15 mov -40(%rsi),%r14 .cfi_restore %r14 mov -32(%rsi),%r13 .cfi_restore %r13 mov -24(%rsi),%r12 .cfi_restore %r12 mov -16(%rsi),%rbx .cfi_restore %rbx mov -8(%rsi),%rbp .cfi_restore %rbp lea (%rsi),%rsp .cfi_def_cfa_register %rsp .Lpoint_double${x}_epilogue: ret .cfi_endproc .size ecp_nistz256_point_double$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: .cfi_startproc ___ $code.=<<___ if ($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: .cfi_startproc .Lpoint_addx: ___ } $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 sub \$32*18+8, %rsp .cfi_adjust_cfa_offset 32*18+8 .Lpoint_add${x}_body: 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) movdqa %xmm2, $in1_y(%rsp) movdqa %xmm3, $in1_y+0x10(%rsp) movdqa %xmm4, $in1_z(%rsp) movdqa %xmm5, $in1_z+0x10(%rsp) por %xmm4, %xmm5 movdqu 0x00($a_ptr), %xmm0 # copy *(P256_POINT *)$b_ptr pshufd \$0xb1, %xmm5, %xmm3 movdqu 0x10($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, $in2_x+0x10(%rsp) movdqu 0x40($a_ptr),%xmm0 # in2_z again movdqu 0x50($a_ptr),%xmm1 movdqa %xmm2, $in2_y(%rsp) movdqa %xmm3, $in2_y+0x10(%rsp) por %xmm4, %xmm5 pxor %xmm4, %xmm4 por %xmm0, %xmm1 movq $r_ptr, %xmm0 # save $r_ptr lea 0x40-$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, %xmm1, %xmm4 por %xmm1, %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 movq $b_ptr, %xmm1 lea 0x40-$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 # !is_equal(U1, U2) movq %xmm2, $acc0 # in1infty | in2infty movq %xmm3, $acc1 # !is_equal(S1, S2) or $acc0, $acc4 or $acc1, $acc4 # if (!is_equal(U1, U2) | in1infty | in2infty | !is_equal(S1, S2)) .byte 0x3e # predict taken jnz .Ladd_proceed$x .Ladd_double$x: movq %xmm1, $a_ptr # restore $a_ptr movq %xmm0, $r_ptr # restore $r_ptr add \$`32*(18-5)`, %rsp # difference in frame sizes .cfi_adjust_cfa_offset `-32*(18-5)` jmp .Lpoint_double_shortcut$x .cfi_adjust_cfa_offset `32*(18-5)` .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); xor $t4, $t4 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 adc \$0, $t4 sub \$-1, $acc0 mov $acc2, $t2 sbb $poly1, $acc1 sbb \$0, $acc2 mov $acc3, $t3 sbb $poly3, $acc3 sbb \$0, $t4 cmovc $t0, $acc0 mov 8*0($a_ptr), $t0 cmovc $t1, $acc1 mov 8*1($a_ptr), $t1 cmovc $t2, $acc2 mov 8*2($a_ptr), $t2 cmovc $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: lea 32*18+56(%rsp), %rsi .cfi_def_cfa %rsi,8 mov -48(%rsi),%r15 .cfi_restore %r15 mov -40(%rsi),%r14 .cfi_restore %r14 mov -32(%rsi),%r13 .cfi_restore %r13 mov -24(%rsi),%r12 .cfi_restore %r12 mov -16(%rsi),%rbx .cfi_restore %rbx mov -8(%rsi),%rbp .cfi_restore %rbp lea (%rsi),%rsp .cfi_def_cfa_register %rsp .Lpoint_add${x}_epilogue: ret .cfi_endproc .size ecp_nistz256_point_add$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: .cfi_startproc ___ $code.=<<___ if ($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: .cfi_startproc .Lpoint_add_affinex: ___ } $code.=<<___; push %rbp .cfi_push %rbp push %rbx .cfi_push %rbx push %r12 .cfi_push %r12 push %r13 .cfi_push %r13 push %r14 .cfi_push %r14 push %r15 .cfi_push %r15 sub \$32*15+8, %rsp .cfi_adjust_cfa_offset 32*15+8 .Ladd_affine${x}_body: 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) movdqa %xmm2, $in1_y(%rsp) movdqa %xmm3, $in1_y+0x10(%rsp) movdqa %xmm4, $in1_z(%rsp) movdqa %xmm5, $in1_z+0x10(%rsp) por %xmm4, %xmm5 movdqu 0x00($b_ptr), %xmm0 # copy *(P256_POINT_AFFINE *)$b_ptr pshufd \$0xb1, %xmm5, %xmm3 movdqu 0x10($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); xor $t4, $t4 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 adc \$0, $t4 sub \$-1, $acc0 mov $acc2, $t2 sbb $poly1, $acc1 sbb \$0, $acc2 mov $acc3, $t3 sbb $poly3, $acc3 sbb \$0, $t4 cmovc $t0, $acc0 mov 8*0($a_ptr), $t0 cmovc $t1, $acc1 mov 8*1($a_ptr), $t1 cmovc $t2, $acc2 mov 8*2($a_ptr), $t2 cmovc $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($r_ptr) lea 32*15+56(%rsp), %rsi .cfi_def_cfa %rsi,8 mov -48(%rsi),%r15 .cfi_restore %r15 mov -40(%rsi),%r14 .cfi_restore %r14 mov -32(%rsi),%r13 .cfi_restore %r13 mov -24(%rsi),%r12 .cfi_restore %r12 mov -16(%rsi),%rbx .cfi_restore %rbx mov -8(%rsi),%rbp .cfi_restore %rbp lea (%rsi),%rsp .cfi_def_cfa_register %rsp .Ladd_affine${x}_epilogue: ret .cfi_endproc .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: .cfi_startproc 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 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) ret .cfi_endproc .size __ecp_nistz256_add_tox,.-__ecp_nistz256_add_tox .type __ecp_nistz256_sub_fromx,\@abi-omnipotent .align 32 __ecp_nistz256_sub_fromx: .cfi_startproc 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 .cfi_endproc .size __ecp_nistz256_sub_fromx,.-__ecp_nistz256_sub_fromx .type __ecp_nistz256_subx,\@abi-omnipotent .align 32 __ecp_nistz256_subx: .cfi_startproc 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 .cfi_endproc .size __ecp_nistz256_subx,.-__ecp_nistz256_subx .type __ecp_nistz256_mul_by_2x,\@abi-omnipotent .align 32 __ecp_nistz256_mul_by_2x: .cfi_startproc 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 sbb \$0, $t4 cmovc $t0, $a0 cmovc $t1, $a1 mov $a0, 8*0($r_ptr) cmovc $t2, $a2 mov $a1, 8*1($r_ptr) cmovc $t3, $a3 mov $a2, 8*2($r_ptr) mov $a3, 8*3($r_ptr) ret .cfi_endproc .size __ecp_nistz256_mul_by_2x,.-__ecp_nistz256_mul_by_2x ___ } &gen_double("x"); &gen_add("x"); &gen_add_affine("x"); } }}} # EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, # CONTEXT *context,DISPATCHER_CONTEXT *disp) if ($win64) { $rec="%rcx"; $frame="%rdx"; $context="%r8"; $disp="%r9"; $code.=<<___; .extern __imp_RtlVirtualUnwind .type short_handler,\@abi-omnipotent .align 16 short_handler: push %rsi push %rdi push %rbx push %rbp push %r12 push %r13 push %r14 push %r15 pushfq sub \$64,%rsp mov 120($context),%rax # pull context->Rax mov 248($context),%rbx # pull context->Rip mov 8($disp),%rsi # disp->ImageBase mov 56($disp),%r11 # disp->HandlerData mov 0(%r11),%r10d # HandlerData[0] lea (%rsi,%r10),%r10 # end of prologue label cmp %r10,%rbx # context->RipRsp mov 4(%r11),%r10d # HandlerData[1] lea (%rsi,%r10),%r10 # epilogue label cmp %r10,%rbx # context->Rip>=epilogue label jae .Lcommon_seh_tail lea 16(%rax),%rax mov -8(%rax),%r12 mov -16(%rax),%r13 mov %r12,216($context) # restore context->R12 mov %r13,224($context) # restore context->R13 jmp .Lcommon_seh_tail .size short_handler,.-short_handler .type full_handler,\@abi-omnipotent .align 16 full_handler: push %rsi push %rdi push %rbx push %rbp push %r12 push %r13 push %r14 push %r15 pushfq sub \$64,%rsp mov 120($context),%rax # pull context->Rax mov 248($context),%rbx # pull context->Rip mov 8($disp),%rsi # disp->ImageBase mov 56($disp),%r11 # disp->HandlerData mov 0(%r11),%r10d # HandlerData[0] lea (%rsi,%r10),%r10 # end of prologue label cmp %r10,%rbx # context->RipRsp mov 4(%r11),%r10d # HandlerData[1] lea (%rsi,%r10),%r10 # epilogue label cmp %r10,%rbx # context->Rip>=epilogue label jae .Lcommon_seh_tail mov 8(%r11),%r10d # HandlerData[2] lea (%rax,%r10),%rax mov -8(%rax),%rbp mov -16(%rax),%rbx mov -24(%rax),%r12 mov -32(%rax),%r13 mov -40(%rax),%r14 mov -48(%rax),%r15 mov %rbx,144($context) # restore context->Rbx mov %rbp,160($context) # restore context->Rbp mov %r12,216($context) # restore context->R12 mov %r13,224($context) # restore context->R13 mov %r14,232($context) # restore context->R14 mov %r15,240($context) # restore context->R15 .Lcommon_seh_tail: mov 8(%rax),%rdi mov 16(%rax),%rsi mov %rax,152($context) # restore context->Rsp mov %rsi,168($context) # restore context->Rsi mov %rdi,176($context) # restore context->Rdi mov 40($disp),%rdi # disp->ContextRecord mov $context,%rsi # context mov \$154,%ecx # sizeof(CONTEXT) .long 0xa548f3fc # cld; rep movsq mov $disp,%rsi xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER mov 8(%rsi),%rdx # arg2, disp->ImageBase mov 0(%rsi),%r8 # arg3, disp->ControlPc mov 16(%rsi),%r9 # arg4, disp->FunctionEntry mov 40(%rsi),%r10 # disp->ContextRecord lea 56(%rsi),%r11 # &disp->HandlerData lea 24(%rsi),%r12 # &disp->EstablisherFrame mov %r10,32(%rsp) # arg5 mov %r11,40(%rsp) # arg6 mov %r12,48(%rsp) # arg7 mov %rcx,56(%rsp) # arg8, (NULL) call *__imp_RtlVirtualUnwind(%rip) mov \$1,%eax # ExceptionContinueSearch add \$64,%rsp popfq pop %r15 pop %r14 pop %r13 pop %r12 pop %rbp pop %rbx pop %rdi pop %rsi ret .size full_handler,.-full_handler .section .pdata .align 4 .rva .LSEH_begin_ecp_nistz256_mul_by_2 .rva .LSEH_end_ecp_nistz256_mul_by_2 .rva .LSEH_info_ecp_nistz256_mul_by_2 .rva .LSEH_begin_ecp_nistz256_div_by_2 .rva .LSEH_end_ecp_nistz256_div_by_2 .rva .LSEH_info_ecp_nistz256_div_by_2 .rva .LSEH_begin_ecp_nistz256_mul_by_3 .rva .LSEH_end_ecp_nistz256_mul_by_3 .rva .LSEH_info_ecp_nistz256_mul_by_3 .rva .LSEH_begin_ecp_nistz256_add .rva .LSEH_end_ecp_nistz256_add .rva .LSEH_info_ecp_nistz256_add .rva .LSEH_begin_ecp_nistz256_sub .rva .LSEH_end_ecp_nistz256_sub .rva .LSEH_info_ecp_nistz256_sub .rva .LSEH_begin_ecp_nistz256_neg .rva .LSEH_end_ecp_nistz256_neg .rva .LSEH_info_ecp_nistz256_neg .rva .LSEH_begin_ecp_nistz256_ord_mul_mont .rva .LSEH_end_ecp_nistz256_ord_mul_mont .rva .LSEH_info_ecp_nistz256_ord_mul_mont .rva .LSEH_begin_ecp_nistz256_ord_sqr_mont .rva .LSEH_end_ecp_nistz256_ord_sqr_mont .rva .LSEH_info_ecp_nistz256_ord_sqr_mont ___ $code.=<<___ if ($addx); .rva .LSEH_begin_ecp_nistz256_ord_mul_montx .rva .LSEH_end_ecp_nistz256_ord_mul_montx .rva .LSEH_info_ecp_nistz256_ord_mul_montx .rva .LSEH_begin_ecp_nistz256_ord_sqr_montx .rva .LSEH_end_ecp_nistz256_ord_sqr_montx .rva .LSEH_info_ecp_nistz256_ord_sqr_montx ___ $code.=<<___; .rva .LSEH_begin_ecp_nistz256_to_mont .rva .LSEH_end_ecp_nistz256_to_mont .rva .LSEH_info_ecp_nistz256_to_mont .rva .LSEH_begin_ecp_nistz256_mul_mont .rva .LSEH_end_ecp_nistz256_mul_mont .rva .LSEH_info_ecp_nistz256_mul_mont .rva .LSEH_begin_ecp_nistz256_sqr_mont .rva .LSEH_end_ecp_nistz256_sqr_mont .rva .LSEH_info_ecp_nistz256_sqr_mont .rva .LSEH_begin_ecp_nistz256_from_mont .rva .LSEH_end_ecp_nistz256_from_mont .rva .LSEH_info_ecp_nistz256_from_mont .rva .LSEH_begin_ecp_nistz256_gather_w5 .rva .LSEH_end_ecp_nistz256_gather_w5 .rva .LSEH_info_ecp_nistz256_gather_wX .rva .LSEH_begin_ecp_nistz256_gather_w7 .rva .LSEH_end_ecp_nistz256_gather_w7 .rva .LSEH_info_ecp_nistz256_gather_wX ___ $code.=<<___ if ($avx>1); .rva .LSEH_begin_ecp_nistz256_avx2_gather_w5 .rva .LSEH_end_ecp_nistz256_avx2_gather_w5 .rva .LSEH_info_ecp_nistz256_avx2_gather_wX .rva .LSEH_begin_ecp_nistz256_avx2_gather_w7 .rva .LSEH_end_ecp_nistz256_avx2_gather_w7 .rva .LSEH_info_ecp_nistz256_avx2_gather_wX ___ $code.=<<___; .rva .LSEH_begin_ecp_nistz256_point_double .rva .LSEH_end_ecp_nistz256_point_double .rva .LSEH_info_ecp_nistz256_point_double .rva .LSEH_begin_ecp_nistz256_point_add .rva .LSEH_end_ecp_nistz256_point_add .rva .LSEH_info_ecp_nistz256_point_add .rva .LSEH_begin_ecp_nistz256_point_add_affine .rva .LSEH_end_ecp_nistz256_point_add_affine .rva .LSEH_info_ecp_nistz256_point_add_affine ___ $code.=<<___ if ($addx); .rva .LSEH_begin_ecp_nistz256_point_doublex .rva .LSEH_end_ecp_nistz256_point_doublex .rva .LSEH_info_ecp_nistz256_point_doublex .rva .LSEH_begin_ecp_nistz256_point_addx .rva .LSEH_end_ecp_nistz256_point_addx .rva .LSEH_info_ecp_nistz256_point_addx .rva .LSEH_begin_ecp_nistz256_point_add_affinex .rva .LSEH_end_ecp_nistz256_point_add_affinex .rva .LSEH_info_ecp_nistz256_point_add_affinex ___ $code.=<<___; .section .xdata .align 8 .LSEH_info_ecp_nistz256_mul_by_2: .byte 9,0,0,0 .rva short_handler .rva .Lmul_by_2_body,.Lmul_by_2_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_div_by_2: .byte 9,0,0,0 .rva short_handler .rva .Ldiv_by_2_body,.Ldiv_by_2_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_mul_by_3: .byte 9,0,0,0 .rva short_handler .rva .Lmul_by_3_body,.Lmul_by_3_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_add: .byte 9,0,0,0 .rva short_handler .rva .Ladd_body,.Ladd_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_sub: .byte 9,0,0,0 .rva short_handler .rva .Lsub_body,.Lsub_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_neg: .byte 9,0,0,0 .rva short_handler .rva .Lneg_body,.Lneg_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_ord_mul_mont: .byte 9,0,0,0 .rva full_handler .rva .Lord_mul_body,.Lord_mul_epilogue # HandlerData[] .long 48,0 .LSEH_info_ecp_nistz256_ord_sqr_mont: .byte 9,0,0,0 .rva full_handler .rva .Lord_sqr_body,.Lord_sqr_epilogue # HandlerData[] .long 48,0 ___ $code.=<<___ if ($addx); .LSEH_info_ecp_nistz256_ord_mul_montx: .byte 9,0,0,0 .rva full_handler .rva .Lord_mulx_body,.Lord_mulx_epilogue # HandlerData[] .long 48,0 .LSEH_info_ecp_nistz256_ord_sqr_montx: .byte 9,0,0,0 .rva full_handler .rva .Lord_sqrx_body,.Lord_sqrx_epilogue # HandlerData[] .long 48,0 ___ $code.=<<___; .LSEH_info_ecp_nistz256_to_mont: .byte 9,0,0,0 .rva full_handler .rva .Lmul_body,.Lmul_epilogue # HandlerData[] .long 48,0 .LSEH_info_ecp_nistz256_mul_mont: .byte 9,0,0,0 .rva full_handler .rva .Lmul_body,.Lmul_epilogue # HandlerData[] .long 48,0 .LSEH_info_ecp_nistz256_sqr_mont: .byte 9,0,0,0 .rva full_handler .rva .Lsqr_body,.Lsqr_epilogue # HandlerData[] .long 48,0 .LSEH_info_ecp_nistz256_from_mont: .byte 9,0,0,0 .rva short_handler .rva .Lfrom_body,.Lfrom_epilogue # HandlerData[] .LSEH_info_ecp_nistz256_gather_wX: .byte 0x01,0x33,0x16,0x00 .byte 0x33,0xf8,0x09,0x00 #movaps 0x90(rsp),xmm15 .byte 0x2e,0xe8,0x08,0x00 #movaps 0x80(rsp),xmm14 .byte 0x29,0xd8,0x07,0x00 #movaps 0x70(rsp),xmm13 .byte 0x24,0xc8,0x06,0x00 #movaps 0x60(rsp),xmm12 .byte 0x1f,0xb8,0x05,0x00 #movaps 0x50(rsp),xmm11 .byte 0x1a,0xa8,0x04,0x00 #movaps 0x40(rsp),xmm10 .byte 0x15,0x98,0x03,0x00 #movaps 0x30(rsp),xmm9 .byte 0x10,0x88,0x02,0x00 #movaps 0x20(rsp),xmm8 .byte 0x0c,0x78,0x01,0x00 #movaps 0x10(rsp),xmm7 .byte 0x08,0x68,0x00,0x00 #movaps 0x00(rsp),xmm6 .byte 0x04,0x01,0x15,0x00 #sub rsp,0xa8 .align 8 ___ $code.=<<___ if ($avx>1); .LSEH_info_ecp_nistz256_avx2_gather_wX: .byte 0x01,0x36,0x17,0x0b .byte 0x36,0xf8,0x09,0x00 # vmovaps 0x90(rsp),xmm15 .byte 0x31,0xe8,0x08,0x00 # vmovaps 0x80(rsp),xmm14 .byte 0x2c,0xd8,0x07,0x00 # vmovaps 0x70(rsp),xmm13 .byte 0x27,0xc8,0x06,0x00 # vmovaps 0x60(rsp),xmm12 .byte 0x22,0xb8,0x05,0x00 # vmovaps 0x50(rsp),xmm11 .byte 0x1d,0xa8,0x04,0x00 # vmovaps 0x40(rsp),xmm10 .byte 0x18,0x98,0x03,0x00 # vmovaps 0x30(rsp),xmm9 .byte 0x13,0x88,0x02,0x00 # vmovaps 0x20(rsp),xmm8 .byte 0x0e,0x78,0x01,0x00 # vmovaps 0x10(rsp),xmm7 .byte 0x09,0x68,0x00,0x00 # vmovaps 0x00(rsp),xmm6 .byte 0x04,0x01,0x15,0x00 # sub rsp,0xa8 .byte 0x00,0xb3,0x00,0x00 # set_frame r11 .align 8 ___ $code.=<<___; .LSEH_info_ecp_nistz256_point_double: .byte 9,0,0,0 .rva full_handler .rva .Lpoint_doubleq_body,.Lpoint_doubleq_epilogue # HandlerData[] .long 32*5+56,0 .LSEH_info_ecp_nistz256_point_add: .byte 9,0,0,0 .rva full_handler .rva .Lpoint_addq_body,.Lpoint_addq_epilogue # HandlerData[] .long 32*18+56,0 .LSEH_info_ecp_nistz256_point_add_affine: .byte 9,0,0,0 .rva full_handler .rva .Ladd_affineq_body,.Ladd_affineq_epilogue # HandlerData[] .long 32*15+56,0 ___ $code.=<<___ if ($addx); .align 8 .LSEH_info_ecp_nistz256_point_doublex: .byte 9,0,0,0 .rva full_handler .rva .Lpoint_doublex_body,.Lpoint_doublex_epilogue # HandlerData[] .long 32*5+56,0 .LSEH_info_ecp_nistz256_point_addx: .byte 9,0,0,0 .rva full_handler .rva .Lpoint_addx_body,.Lpoint_addx_epilogue # HandlerData[] .long 32*18+56,0 .LSEH_info_ecp_nistz256_point_add_affinex: .byte 9,0,0,0 .rva full_handler .rva .Ladd_affinex_body,.Ladd_affinex_epilogue # HandlerData[] .long 32*15+56,0 ___ } ######################################################################## # Convert ecp_nistz256_table.c to layout expected by ecp_nistz_gather_w7 # open 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 <<___; .section .rodata align=4096 .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 or die "error closing STDOUT: $!";