548 lines
11 KiB
Perl
548 lines
11 KiB
Perl
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#!/usr/bin/env perl
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#
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# Copyright Supranational LLC
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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open STDOUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""
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or die "can't call $xlate: $!";
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# common argument layout
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($r_ptr,$a_ptr,$b_org,$n_ptr) = ("%rdi","%rsi","%rdx","%rcx");
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$b_ptr = "%rbx";
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{ ############################################################## 256 bits add
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my @acc=map("%r$_",(8..11, "ax", "si", "bx", "bp", 12));
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$code.=<<___;
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.text
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.globl add_mod_256
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.hidden add_mod_256
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.type add_mod_256,\@function,4,"unwind"
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.align 32
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add_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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sub \$8, %rsp
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.cfi_adjust_cfa_offset 8
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.cfi_end_prologue
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mov 8*0($a_ptr), @acc[0]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov 8*3($a_ptr), @acc[3]
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.Loaded_a_add_mod_256:
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add 8*0($b_org), @acc[0]
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adc 8*1($b_org), @acc[1]
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mov @acc[0], @acc[4]
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adc 8*2($b_org), @acc[2]
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mov @acc[1], @acc[5]
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adc 8*3($b_org), @acc[3]
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sbb $b_org, $b_org
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mov @acc[2], @acc[6]
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sub 8*0($n_ptr), @acc[0]
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sbb 8*1($n_ptr), @acc[1]
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sbb 8*2($n_ptr), @acc[2]
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mov @acc[3], @acc[7]
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sbb 8*3($n_ptr), @acc[3]
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sbb \$0, $b_org
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cmovc @acc[4], @acc[0]
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cmovc @acc[5], @acc[1]
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mov @acc[0], 8*0($r_ptr)
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cmovc @acc[6], @acc[2]
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mov @acc[1], 8*1($r_ptr)
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cmovc @acc[7], @acc[3]
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mov @acc[2], 8*2($r_ptr)
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mov @acc[3], 8*3($r_ptr)
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mov 8(%rsp),%rbx
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.cfi_restore %rbx
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mov 16(%rsp),%rbp
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.cfi_restore %rbp
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lea 24(%rsp),%rsp
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.cfi_adjust_cfa_offset -24
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.cfi_epilogue
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ret
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.cfi_endproc
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.size add_mod_256,.-add_mod_256
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########################################################################
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.globl mul_by_3_mod_256
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.hidden mul_by_3_mod_256
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.type mul_by_3_mod_256,\@function,3,"unwind"
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.align 32
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mul_by_3_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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push %r12
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.cfi_push %r12
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.cfi_end_prologue
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mov $b_org,$n_ptr
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mov 8*0($a_ptr), @acc[0]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov $a_ptr,$b_org
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mov 8*3($a_ptr), @acc[3]
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call __lshift_mod_256
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mov 0(%rsp),%r12
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.cfi_restore %r12
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jmp .Loaded_a_add_mod_256
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mov 8(%rsp),%rbx
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.cfi_restore %rbx
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mov 16(%rsp),%rbp
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.cfi_restore %rbp
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lea 24(%rsp),%rsp
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.cfi_adjust_cfa_offset -24
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.cfi_epilogue
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ret
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.cfi_endproc
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.size mul_by_3_mod_256,.-mul_by_3_mod_256
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.type __lshift_mod_256,\@abi-omnipotent
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.align 32
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__lshift_mod_256:
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add @acc[0], @acc[0]
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adc @acc[1], @acc[1]
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mov @acc[0], @acc[4]
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adc @acc[2], @acc[2]
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mov @acc[1], @acc[5]
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adc @acc[3], @acc[3]
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sbb @acc[8], @acc[8]
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mov @acc[2], @acc[6]
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sub 8*0($n_ptr), @acc[0]
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sbb 8*1($n_ptr), @acc[1]
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sbb 8*2($n_ptr), @acc[2]
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mov @acc[3], @acc[7]
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sbb 8*3($n_ptr), @acc[3]
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sbb \$0, @acc[8]
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cmovc @acc[4], @acc[0]
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cmovc @acc[5], @acc[1]
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cmovc @acc[6], @acc[2]
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cmovc @acc[7], @acc[3]
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ret
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.size __lshift_mod_256,.-__lshift_mod_256
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########################################################################
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.globl lshift_mod_256
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.hidden lshift_mod_256
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.type lshift_mod_256,\@function,4,"unwind"
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.align 32
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lshift_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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push %r12
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.cfi_push %r12
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.cfi_end_prologue
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mov 8*0($a_ptr), @acc[0]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov 8*3($a_ptr), @acc[3]
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.Loop_lshift_mod_256:
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call __lshift_mod_256
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dec %edx
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jnz .Loop_lshift_mod_256
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mov @acc[0], 8*0($r_ptr)
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mov @acc[1], 8*1($r_ptr)
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mov @acc[2], 8*2($r_ptr)
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mov @acc[3], 8*3($r_ptr)
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mov 0(%rsp),%r12
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.cfi_restore %r12
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mov 8(%rsp),%rbx
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.cfi_restore %rbx
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mov 16(%rsp),%rbp
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.cfi_restore %rbp
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lea 24(%rsp),%rsp
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.cfi_adjust_cfa_offset -24
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.cfi_epilogue
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ret
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.cfi_endproc
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.size lshift_mod_256,.-lshift_mod_256
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########################################################################
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.globl rshift_mod_256
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.hidden rshift_mod_256
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.type rshift_mod_256,\@function,4,"unwind"
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.align 32
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rshift_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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sub \$8, %rsp
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.cfi_adjust_cfa_offset 8
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.cfi_end_prologue
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mov 8*0($a_ptr), @acc[7]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov 8*3($a_ptr), @acc[3]
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.Loop_rshift_mod_256:
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mov @acc[7], @acc[0]
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and \$1, @acc[7]
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mov 8*0($n_ptr), @acc[4]
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neg @acc[7]
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mov 8*1($n_ptr), @acc[5]
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mov 8*2($n_ptr), @acc[6]
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and @acc[7], @acc[4]
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and @acc[7], @acc[5]
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and @acc[7], @acc[6]
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and 8*3($n_ptr), @acc[7]
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add @acc[4], @acc[0]
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adc @acc[5], @acc[1]
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adc @acc[6], @acc[2]
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adc @acc[7], @acc[3]
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sbb @acc[4], @acc[4]
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shr \$1, @acc[0]
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mov @acc[1], @acc[7]
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shr \$1, @acc[1]
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mov @acc[2], @acc[6]
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shr \$1, @acc[2]
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mov @acc[3], @acc[5]
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shr \$1, @acc[3]
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shl \$63, @acc[7]
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shl \$63, @acc[6]
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or @acc[0], @acc[7]
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shl \$63, @acc[5]
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or @acc[6], @acc[1]
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shl \$63, @acc[4]
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or @acc[5], @acc[2]
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or @acc[4], @acc[3]
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dec %edx
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jnz .Loop_rshift_mod_256
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mov @acc[7], 8*0($r_ptr)
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mov @acc[1], 8*1($r_ptr)
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mov @acc[2], 8*2($r_ptr)
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mov @acc[3], 8*3($r_ptr)
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mov 8(%rsp),%rbx
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.cfi_restore %rbx
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mov 16(%rsp),%rbp
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.cfi_restore %rbp
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lea 24(%rsp),%rsp
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.cfi_adjust_cfa_offset -24
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.cfi_epilogue
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ret
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.cfi_endproc
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.size rshift_mod_256,.-rshift_mod_256
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########################################################################
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.globl cneg_mod_256
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.hidden cneg_mod_256
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.type cneg_mod_256,\@function,4,"unwind"
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.align 32
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cneg_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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push %r12
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.cfi_push %r12
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.cfi_end_prologue
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mov 8*0($a_ptr), @acc[8] # load a[0:3]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov @acc[8], @acc[0]
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mov 8*3($a_ptr), @acc[3]
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or @acc[1], @acc[8]
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or @acc[2], @acc[8]
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or @acc[3], @acc[8]
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mov \$-1, @acc[7]
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mov 8*0($n_ptr), @acc[4] # load n[0:3]
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cmovnz @acc[7], @acc[8] # mask = a[0:3] ? -1 : 0
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mov 8*1($n_ptr), @acc[5]
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mov 8*2($n_ptr), @acc[6]
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and @acc[8], @acc[4] # n[0:3] &= mask
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mov 8*3($n_ptr), @acc[7]
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and @acc[8], @acc[5]
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and @acc[8], @acc[6]
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and @acc[8], @acc[7]
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sub @acc[0], @acc[4] # a[0:3] ? n[0:3]-a[0:3] : 0-0
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sbb @acc[1], @acc[5]
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sbb @acc[2], @acc[6]
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sbb @acc[3], @acc[7]
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or $b_org, $b_org # check condition flag
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cmovz @acc[0], @acc[4] # flag ? n[0:3]-a[0:3] : a[0:3]
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cmovz @acc[1], @acc[5]
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mov @acc[4], 8*0($r_ptr)
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cmovz @acc[2], @acc[6]
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mov @acc[5], 8*1($r_ptr)
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cmovz @acc[3], @acc[7]
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mov @acc[6], 8*2($r_ptr)
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mov @acc[7], 8*3($r_ptr)
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mov 0(%rsp),%r12
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.cfi_restore %r12
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mov 8(%rsp),%rbx
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.cfi_restore %rbx
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mov 16(%rsp),%rbp
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.cfi_restore %rbp
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lea 24(%rsp),%rsp
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.cfi_adjust_cfa_offset -24
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.cfi_epilogue
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ret
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.cfi_endproc
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.size cneg_mod_256,.-cneg_mod_256
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########################################################################
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.globl sub_mod_256
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.hidden sub_mod_256
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.type sub_mod_256,\@function,4,"unwind"
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.align 32
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sub_mod_256:
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.cfi_startproc
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push %rbp
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.cfi_push %rbp
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push %rbx
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.cfi_push %rbx
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sub \$8, %rsp
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.cfi_adjust_cfa_offset 8
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.cfi_end_prologue
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mov 8*0($a_ptr), @acc[0]
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mov 8*1($a_ptr), @acc[1]
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mov 8*2($a_ptr), @acc[2]
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mov 8*3($a_ptr), @acc[3]
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sub 8*0($b_org), @acc[0]
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||
|
|
mov 8*0($n_ptr), @acc[4]
|
||
|
|
sbb 8*1($b_org), @acc[1]
|
||
|
|
mov 8*1($n_ptr), @acc[5]
|
||
|
|
sbb 8*2($b_org), @acc[2]
|
||
|
|
mov 8*2($n_ptr), @acc[6]
|
||
|
|
sbb 8*3($b_org), @acc[3]
|
||
|
|
mov 8*3($n_ptr), @acc[7]
|
||
|
|
sbb $b_org, $b_org
|
||
|
|
|
||
|
|
and $b_org, @acc[4]
|
||
|
|
and $b_org, @acc[5]
|
||
|
|
and $b_org, @acc[6]
|
||
|
|
and $b_org, @acc[7]
|
||
|
|
|
||
|
|
add @acc[4], @acc[0]
|
||
|
|
adc @acc[5], @acc[1]
|
||
|
|
mov @acc[0], 8*0($r_ptr)
|
||
|
|
adc @acc[6], @acc[2]
|
||
|
|
mov @acc[1], 8*1($r_ptr)
|
||
|
|
adc @acc[7], @acc[3]
|
||
|
|
mov @acc[2], 8*2($r_ptr)
|
||
|
|
mov @acc[3], 8*3($r_ptr)
|
||
|
|
|
||
|
|
mov 8(%rsp),%rbx
|
||
|
|
.cfi_restore %rbx
|
||
|
|
mov 16(%rsp),%rbp
|
||
|
|
.cfi_restore %rbp
|
||
|
|
lea 24(%rsp),%rsp
|
||
|
|
.cfi_adjust_cfa_offset -24
|
||
|
|
.cfi_epilogue
|
||
|
|
ret
|
||
|
|
.cfi_endproc
|
||
|
|
.size sub_mod_256,.-sub_mod_256
|
||
|
|
|
||
|
|
########################################################################
|
||
|
|
.globl check_mod_256
|
||
|
|
.hidden check_mod_256
|
||
|
|
.type check_mod_256,\@function,2,"unwind"
|
||
|
|
.align 32
|
||
|
|
check_mod_256:
|
||
|
|
.cfi_startproc
|
||
|
|
mov 8*0($r_ptr), %rax
|
||
|
|
mov 8*1($r_ptr), @acc[1]
|
||
|
|
mov 8*2($r_ptr), @acc[2]
|
||
|
|
mov 8*3($r_ptr), @acc[3]
|
||
|
|
|
||
|
|
mov %rax, @acc[0] # see if it's zero
|
||
|
|
or @acc[1], %rax
|
||
|
|
or @acc[2], %rax
|
||
|
|
or @acc[3], %rax
|
||
|
|
|
||
|
|
sub 8*0($a_ptr), @acc[0] # does subtracting modulus borrow?
|
||
|
|
sbb 8*1($a_ptr), @acc[1]
|
||
|
|
sbb 8*2($a_ptr), @acc[2]
|
||
|
|
sbb 8*3($a_ptr), @acc[3]
|
||
|
|
sbb $a_ptr, $a_ptr
|
||
|
|
|
||
|
|
mov \$1, %rdx
|
||
|
|
cmp \$0, %rax
|
||
|
|
cmovne %rdx, %rax
|
||
|
|
and $a_ptr, %rax
|
||
|
|
.cfi_epilogue
|
||
|
|
ret
|
||
|
|
.cfi_endproc
|
||
|
|
.size check_mod_256,.-check_mod_256
|
||
|
|
|
||
|
|
########################################################################
|
||
|
|
.globl add_n_check_mod_256
|
||
|
|
.hidden add_n_check_mod_256
|
||
|
|
.type add_n_check_mod_256,\@function,4,"unwind"
|
||
|
|
.align 32
|
||
|
|
add_n_check_mod_256:
|
||
|
|
.cfi_startproc
|
||
|
|
push %rbp
|
||
|
|
.cfi_push %rbp
|
||
|
|
push %rbx
|
||
|
|
.cfi_push %rbx
|
||
|
|
sub \$8, %rsp
|
||
|
|
.cfi_adjust_cfa_offset 8
|
||
|
|
.cfi_end_prologue
|
||
|
|
|
||
|
|
mov 8*0($a_ptr), @acc[0]
|
||
|
|
mov 8*1($a_ptr), @acc[1]
|
||
|
|
mov 8*2($a_ptr), @acc[2]
|
||
|
|
mov 8*3($a_ptr), @acc[3]
|
||
|
|
|
||
|
|
add 8*0($b_org), @acc[0]
|
||
|
|
adc 8*1($b_org), @acc[1]
|
||
|
|
mov @acc[0], @acc[4]
|
||
|
|
adc 8*2($b_org), @acc[2]
|
||
|
|
mov @acc[1], @acc[5]
|
||
|
|
adc 8*3($b_org), @acc[3]
|
||
|
|
sbb $b_org, $b_org
|
||
|
|
|
||
|
|
mov @acc[2], @acc[6]
|
||
|
|
sub 8*0($n_ptr), @acc[0]
|
||
|
|
sbb 8*1($n_ptr), @acc[1]
|
||
|
|
sbb 8*2($n_ptr), @acc[2]
|
||
|
|
mov @acc[3], @acc[7]
|
||
|
|
sbb 8*3($n_ptr), @acc[3]
|
||
|
|
sbb \$0, $b_org
|
||
|
|
|
||
|
|
cmovc @acc[4], @acc[0]
|
||
|
|
cmovc @acc[5], @acc[1]
|
||
|
|
mov @acc[0], 8*0($r_ptr)
|
||
|
|
cmovc @acc[6], @acc[2]
|
||
|
|
mov @acc[1], 8*1($r_ptr)
|
||
|
|
cmovc @acc[7], @acc[3]
|
||
|
|
mov @acc[2], 8*2($r_ptr)
|
||
|
|
mov @acc[3], 8*3($r_ptr)
|
||
|
|
|
||
|
|
or @acc[1], @acc[0]
|
||
|
|
or @acc[3], @acc[2]
|
||
|
|
or @acc[2], @acc[0]
|
||
|
|
mov \$1, %rax
|
||
|
|
cmovz @acc[0], %rax
|
||
|
|
|
||
|
|
mov 8(%rsp),%rbx
|
||
|
|
.cfi_restore %rbx
|
||
|
|
mov 16(%rsp),%rbp
|
||
|
|
.cfi_restore %rbp
|
||
|
|
lea 24(%rsp),%rsp
|
||
|
|
.cfi_adjust_cfa_offset -24
|
||
|
|
.cfi_epilogue
|
||
|
|
ret
|
||
|
|
.cfi_endproc
|
||
|
|
.size add_n_check_mod_256,.-add_n_check_mod_256
|
||
|
|
|
||
|
|
########################################################################
|
||
|
|
.globl sub_n_check_mod_256
|
||
|
|
.hidden sub_n_check_mod_256
|
||
|
|
.type sub_n_check_mod_256,\@function,4,"unwind"
|
||
|
|
.align 32
|
||
|
|
sub_n_check_mod_256:
|
||
|
|
.cfi_startproc
|
||
|
|
push %rbp
|
||
|
|
.cfi_push %rbp
|
||
|
|
push %rbx
|
||
|
|
.cfi_push %rbx
|
||
|
|
sub \$8, %rsp
|
||
|
|
.cfi_adjust_cfa_offset 8
|
||
|
|
.cfi_end_prologue
|
||
|
|
|
||
|
|
mov 8*0($a_ptr), @acc[0]
|
||
|
|
mov 8*1($a_ptr), @acc[1]
|
||
|
|
mov 8*2($a_ptr), @acc[2]
|
||
|
|
mov 8*3($a_ptr), @acc[3]
|
||
|
|
|
||
|
|
sub 8*0($b_org), @acc[0]
|
||
|
|
mov 8*0($n_ptr), @acc[4]
|
||
|
|
sbb 8*1($b_org), @acc[1]
|
||
|
|
mov 8*1($n_ptr), @acc[5]
|
||
|
|
sbb 8*2($b_org), @acc[2]
|
||
|
|
mov 8*2($n_ptr), @acc[6]
|
||
|
|
sbb 8*3($b_org), @acc[3]
|
||
|
|
mov 8*3($n_ptr), @acc[7]
|
||
|
|
sbb $b_org, $b_org
|
||
|
|
|
||
|
|
and $b_org, @acc[4]
|
||
|
|
and $b_org, @acc[5]
|
||
|
|
and $b_org, @acc[6]
|
||
|
|
and $b_org, @acc[7]
|
||
|
|
|
||
|
|
add @acc[4], @acc[0]
|
||
|
|
adc @acc[5], @acc[1]
|
||
|
|
mov @acc[0], 8*0($r_ptr)
|
||
|
|
adc @acc[6], @acc[2]
|
||
|
|
mov @acc[1], 8*1($r_ptr)
|
||
|
|
adc @acc[7], @acc[3]
|
||
|
|
mov @acc[2], 8*2($r_ptr)
|
||
|
|
mov @acc[3], 8*3($r_ptr)
|
||
|
|
|
||
|
|
or @acc[1], @acc[0]
|
||
|
|
or @acc[3], @acc[2]
|
||
|
|
or @acc[2], @acc[0]
|
||
|
|
mov \$1, %rax
|
||
|
|
cmovz @acc[0], %rax
|
||
|
|
|
||
|
|
mov 8(%rsp),%rbx
|
||
|
|
.cfi_restore %rbx
|
||
|
|
mov 16(%rsp),%rbp
|
||
|
|
.cfi_restore %rbp
|
||
|
|
lea 24(%rsp),%rsp
|
||
|
|
.cfi_adjust_cfa_offset -24
|
||
|
|
.cfi_epilogue
|
||
|
|
ret
|
||
|
|
.cfi_endproc
|
||
|
|
.size sub_n_check_mod_256,.-sub_n_check_mod_256
|
||
|
|
___
|
||
|
|
}
|
||
|
|
|
||
|
|
print $code;
|
||
|
|
close STDOUT;
|