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SynEcc32asm.inc
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2359 lines (2315 loc) · 70.3 KB
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(*
32-bit version of easy-ecc for secp256r1 curve for static linking as x86 asm
used by SynEcc.pas unit e.g. for Kylix; compiled using gcc -g -O1 -c ecc.c
with some manual enhancements by Arnaud Bouchez to the generated asm
This file is part of Synopse framework.
Synopse framework. Copyright (c) Arnaud Bouchez
Synopse Informatique - https://synopse.info
Using secp256r1 curve from "simple and secure ECDH and ECDSA library"
Copyright (c) 2013, Kenneth MacKay - BSD 2-clause license
https://github.com/esxgx/easy-ecc
*** BEGIN LICENSE BLOCK *****
Copyright (c) 2013, Kenneth MacKay
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
***** END LICENSE BLOCK *****
Version 1.18
- first public release, corresponding to SQLite3 Framework 1.18
*)
procedure _curve_n;
asm
db 51H, 25H, 63H, 0FCH, 0C2H, 0CAH, 0B9H, 0F3H
db 84H, 9EH, 17H, 0A7H, 0ADH, 0FAH, 0E6H, 0BCH
db 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH
db 00H, 00H, 00H, 00H, 0FFH, 0FFH, 0FFH, 0FFH
end;
procedure _curve_G;
asm
db 96H, 0C2H, 98H, 0D8H, 45H, 39H, 0A1H, 0F4H
db 0A0H, 33H, 0EBH, 2DH, 81H, 7DH, 03H, 77H
db 0F2H, 40H, 0A4H, 63H, 0E5H, 0E6H, 0BCH, 0F8H
db 47H, 42H, 2CH, 0E1H, 0F2H, 0D1H, 17H, 6BH
db 0F5H, 51H, 0BFH, 37H, 68H, 40H, 0B6H, 0CBH
db 0CEH, 5EH, 31H, 6BH, 57H, 33H, 0CEH, 2BH
db 16H, 9EH, 0FH, 7CH, 4AH, 0EBH, 0E7H, 8EH
db 9BH, 7FH, 1AH, 0FEH, 0E2H, 42H, 0E3H, 4FH
end;
procedure _curve_b;
asm
db 4BH, 60H, 0D2H, 27H, 3EH, 3CH, 0CEH, 3BH
db 0F6H, 0B0H, 53H, 0CCH, 0B0H, 06H, 1DH, 65H
db 0BCH, 86H, 98H, 76H, 55H, 0BDH, 0EBH, 0B3H
db 0E7H, 93H, 3AH, 0AAH, 0D8H, 35H, 0C6H, 5AH
end;
procedure _curve_p;
asm
db 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH, 0FFH
db 0FFH, 0FFH, 0FFH, 0FFH, 00H, 00H, 00H, 00H
db 00H, 00H, 00H, 00H, 00H, 00H, 00H, 00H
db 01H, 00H, 00H, 00H, 0FFH, 0FFH, 0FFH, 0FFH
end;
procedure _vli_clear;
asm
xor edx, edx
mov dword ptr[eax + 00H], edx
mov dword ptr[eax + 04H], edx
mov dword ptr[eax + 08H], edx
mov dword ptr[eax + 0CH], edx
mov dword ptr[eax + 10H], edx
mov dword ptr[eax + 14H], edx
mov dword ptr[eax + 18H], edx
mov dword ptr[eax + 1CH], edx
end;
procedure _vli_isZero;
asm
mov edx, dword ptr[eax + 00H]
or edx, dword ptr[eax + 04H]
jnz @003
mov edx, dword ptr[eax + 08H]
or edx, dword ptr[eax + 0CH]
jnz @003
mov edx, dword ptr[eax + 10H]
or edx, dword ptr[eax + 14H]
jnz @003
mov edx, dword ptr[eax + 18H]
or edx, dword ptr[eax + 1CH]
jnz @003
mov eax, 1
ret
@003: mov eax, 0
end;
procedure _vli_testBit;
asm
push ebp
push edi
push esi
push ebx
mov ebx, eax
mov ebp, edx
shr ebp, 6
mov ecx, edx
and ecx, 3FH
mov edi, ecx
shr edi, 5
and edi, 01H
mov esi, edi
xor esi, 01H
shl esi, cl
shl edi, cl
mov eax, esi
and eax, dword ptr[ebx + ebp * 8]
mov edx, edi
and edx, dword ptr[ebx + ebp * 8 + 4H]
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_numBits;
asm
push esi
push ebx
mov ecx, dword ptr[eax + 1CH]
mov edx, 2
or ecx, dword ptr[eax + 18H]
jz @006
mov edx, 4
jmp @007
@005: sub edx, 1
cmp edx, - 1
jz @011
@006: mov ecx, dword ptr[eax + edx * 8 + 4H]
or ecx, dword ptr[eax + edx * 8]
jz @005
add edx, 1
jz @012
@007: mov ecx, dword ptr[eax + edx * 8 - 8H]
mov ebx, dword ptr[eax + edx * 8 - 4H]
mov eax, ebx
or eax, ecx
jz @009
mov eax, 0
@008: shrd ecx, ebx, 1
shr ebx, 1
add eax, 1
mov esi, ebx
or esi, ecx
jnz @008
jmp @010
@009: mov eax, 0
@010: add edx, 67108863
shl edx, 6
add edx, eax
jmp @012
@011: mov edx, 0
@012: mov eax, edx
pop ebx
pop esi
end;
procedure _vli_set;
asm
mov ecx, dword ptr[edx + 00H]
mov dword ptr[eax + 00H], ecx
mov ecx, dword ptr[edx + 04H]
mov dword ptr[eax + 04H], ecx
mov ecx, dword ptr[edx + 08H]
mov dword ptr[eax + 08H], ecx
mov ecx, dword ptr[edx + 0CH]
mov dword ptr[eax + 0CH], ecx
mov ecx, dword ptr[edx + 10H]
mov dword ptr[eax + 10H], ecx
mov ecx, dword ptr[edx + 14H]
mov dword ptr[eax + 14H], ecx
mov ecx, dword ptr[edx + 18H]
mov dword ptr[eax + 18H], ecx
mov ecx, dword ptr[edx + 1CH]
mov dword ptr[eax + 1CH], ecx
end;
procedure _vli_cmp;
asm
mov ecx, dword ptr[eax + 1CH]
cmp ecx, dword ptr[edx + 1CH]
ja @a
jc @c
mov ecx, dword ptr[eax + 18H]
cmp ecx, dword ptr[edx + 18H]
ja @a
jc @c
mov ecx, dword ptr[eax + 14H]
cmp ecx, dword ptr[edx + 14H]
ja @a
jc @c
mov ecx, dword ptr[eax + 10H]
cmp ecx, dword ptr[edx + 10H]
ja @a
jc @c
mov ecx, dword ptr[eax + 0CH]
cmp ecx, dword ptr[edx + 0CH]
ja @a
jc @c
mov ecx, dword ptr[eax + 08H]
cmp ecx, dword ptr[edx + 08H]
ja @a
jc @c
mov ecx, dword ptr[eax + 04H]
cmp ecx, dword ptr[edx + 04H]
ja @a
jc @c
mov ecx, dword ptr[eax + 00H]
cmp ecx, dword ptr[edx + 00H]
ja @a
jc @c
mov eax, 0
ret
@a: mov eax, 1
ret
@c: mov eax, -1
end;
procedure _vli_lshift;
asm
push ebp
push edi
push esi
push ebx
sub esp, 28
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], edx
mov ebx, ecx
mov dword ptr[esp + 10H], ecx
mov ebp, 0
mov eax, 0
mov edx, 0
mov ecx, 64
mov edi, ecx
sub edi, ebx
mov dword ptr[esp + 14H], edi
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@024: mov eax, dword ptr[esp + 0CH]
mov esi, dword ptr[eax + ebp * 8]
mov edi, dword ptr[eax + ebp * 8 + 4H]
mov eax, esi
mov edx, edi
movzx ecx, byte ptr[esp + 10H]
shld edx, esi, cl
shl eax, cl
test cl, 20H
jz @025
mov edx, eax
xor eax, eax
@025: mov ecx, eax
mov ebx, edx
or ecx, dword ptr[esp]
mov edx, dword ptr[esp + 8H]
mov dword ptr[edx + ebp * 8], ecx
mov eax, ebx
or eax, dword ptr[esp + 4H]
mov dword ptr[edx + ebp * 8 + 4H], eax
mov eax, esi
mov edx, edi
movzx ecx, byte ptr[esp + 14H]
shrd eax, edi, cl
shr edx, cl
test cl, 20H
jz @026
mov eax, edx
xor edx, edx
@026: mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
add ebp, 1
cmp ebp, 4
jnz @024
add esp, 28
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_rshift1;
asm
push ebp
push edi
push esi
push ebx
sub esp, 20
lea ebx, [eax + 18H]
mov dword ptr[esp + 0CH], ebx
lea edx, [eax + 20H]
cmp eax, edx
jnc @028
mov edx, 0
mov ebx, 0
mov ebp, 0
@027: mov esi, dword ptr[eax + edx + 18H]
mov edi, dword ptr[eax + edx + 1CH]
mov dword ptr[esp], esi
mov dword ptr[esp + 4H], edi
shrd esi, edi, 1
shr edi, 1
or ebx, esi
mov dword ptr[eax + edx + 18H], ebx
or ebp, edi
mov dword ptr[eax + edx + 1CH], ebp
mov ebp, dword ptr[esp]
shl ebp, 31
mov ebx, 0
mov ecx, dword ptr[esp + 0CH]
add ecx, edx
lea edx, [edx - 8H]
cmp ecx, eax
ja @027
@028: add esp, 20
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_add;
asm
push ebp
push edi
push esi
push ebx
sub esp, 28
mov dword ptr[esp + 0CH], eax
mov dword ptr[esp + 10H], edx
mov dword ptr[esp + 14H], ecx
mov ebp, 0
mov eax, 0
mov edx, 0
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@029: mov eax, dword ptr[esp + 10H]
mov ecx, dword ptr[eax + ebp * 8]
mov ebx, dword ptr[eax + ebp * 8 + 4H]
mov eax, dword ptr[esp + 14H]
mov esi, ecx
mov edi, ebx
add esi, dword ptr[eax + ebp * 8]
adc edi, dword ptr[eax + ebp * 8 + 4H]
add esi, dword ptr[esp]
adc edi, dword ptr[esp + 4H]
mov eax, ebx
xor eax, edi
mov edx, ecx
xor edx, esi
or eax, edx
jz @032
mov eax, 1
mov edx, 0
cmp ebx, edi
ja @031
jc @030
cmp ecx, esi
ja @031
@030: mov eax, 0
mov edx, 0
@031: mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@032: mov eax, dword ptr[esp + 0CH]
mov dword ptr[eax + ebp * 8], esi
mov dword ptr[eax + ebp * 8 + 4H], edi
add ebp, 1
cmp ebp, 4
jnz @029
mov eax, dword ptr[esp]
mov edx, dword ptr[esp + 4H]
add esp, 28
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_sub;
asm
push ebp
push edi
push esi
push ebx
sub esp, 28
mov dword ptr[esp + 0CH], eax
mov dword ptr[esp + 10H], edx
mov dword ptr[esp + 14H], ecx
mov ebp, 0
mov eax, 0
mov edx, 0
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@033: mov eax, dword ptr[esp + 10H]
mov ecx, dword ptr[eax + ebp * 8]
mov ebx, dword ptr[eax + ebp * 8 + 4H]
mov eax, dword ptr[esp + 14H]
mov esi, ecx
mov edi, ebx
sub esi, dword ptr[eax + ebp * 8]
sbb edi, dword ptr[eax + ebp * 8 + 4H]
sub esi, dword ptr[esp]
sbb edi, dword ptr[esp + 4H]
mov eax, ebx
xor eax, edi
mov edx, ecx
xor edx, esi
or eax, edx
jz @036
mov eax, 1
mov edx, 0
cmp ebx, edi
jc @035
ja @034
cmp ecx, esi
jc @035
@034: mov eax, 0
mov edx, 0
@035: mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@036: mov eax, dword ptr[esp + 0CH]
mov dword ptr[eax + ebp * 8], esi
mov dword ptr[eax + ebp * 8 + 4H], edi
add ebp, 1
cmp ebp, 4
jnz @033
mov eax, dword ptr[esp]
mov edx, dword ptr[esp + 4H]
add esp, 28
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_mult;
asm
push ebp
push edi
push esi
push ebx
sub esp, 84
mov dword ptr[esp + 48H], eax
mov dword ptr[esp + 4CH], ecx
mov dword ptr[esp + 44H], - 3
mov dword ptr[esp], 0
mov dword ptr[esp + 4H], 0
mov dword ptr[esp + 38H], 0
mov dword ptr[esp + 3CH], 0
mov dword ptr[esp + 34H], 0
mov dword ptr[esp + 40H], edx
@037: mov ebp, 0
mov eax, dword ptr[esp + 34H]
cmp eax, 3
jbe @038
mov ebx, dword ptr[esp + 44H]
cmp ebx, eax
ja @047
cmp ebx, 3
ja @047
mov ebp, ebx
@038: mov eax, dword ptr[esp + 34H]
sub eax, ebp
mov ebx, dword ptr[esp + 4CH]
lea eax, [ebx + eax * 8]
mov edi, eax
mov eax, dword ptr[esp + 38H]
mov edx, dword ptr[esp + 3CH]
mov dword ptr[esp + 20H], eax
mov dword ptr[esp + 24H], edx
mov dword ptr[esp + 38H], 0
mov dword ptr[esp + 3CH], 0
jmp @040
@039: mov eax, dword ptr[esp + 8H]
mov edx, dword ptr[esp + 0CH]
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
@040: mov eax, dword ptr[esp + 40H]
mov ecx, dword ptr[eax + ebp * 8]
mov esi, dword ptr[eax + ebp * 8 + 4H]
mov eax, ecx
mul dword ptr[edi]
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], edx
mov eax, ecx
mul dword ptr[edi + 4H]
mov ecx, eax
mov ebx, edx
mov eax, esi
mul dword ptr[edi + 4H]
mov dword ptr[esp + 28H], eax
mov dword ptr[esp + 2CH], edx
mov eax, esi
mul dword ptr[edi]
add eax, ecx
adc edx, ebx
mov dword ptr[esp + 10H], eax
mov dword ptr[esp + 14H], edx
mov edx, dword ptr[esp + 0CH]
mov eax, edx
xor edx, edx
add eax, dword ptr[esp + 10H]
adc edx, dword ptr[esp + 14H]
mov dword ptr[esp + 10H], eax
mov dword ptr[esp + 14H], edx
cmp ebx, edx
jc @042
ja @041
cmp ecx, eax
jbe @042
@041: add dword ptr[esp + 28H], 0
adc dword ptr[esp + 2CH], 1
@042: mov ebx, dword ptr[esp + 14H]
mov ecx, ebx
xor ebx, ebx
add ecx, dword ptr[esp + 28H]
adc ebx, dword ptr[esp + 2CH]
mov edx, dword ptr[esp + 8H]
mov eax, dword ptr[esp + 10H]
mov dword ptr[esp + 18H], edx
mov dword ptr[esp + 1CH], eax
mov eax, dword ptr[esp + 18H]
mov edx, dword ptr[esp + 1CH]
add eax, dword ptr[esp]
adc edx, dword ptr[esp + 4H]
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], edx
mov eax, 1
mov edx, 0
mov esi, dword ptr[esp + 4H]
cmp dword ptr[esp + 0CH], esi
jc @044
ja @043
mov esi, dword ptr[esp]
cmp dword ptr[esp + 8H], esi
jc @044
@043: mov eax, 0
mov edx, 0
@044: add eax, ecx
adc edx, ebx
add dword ptr[esp + 20H], eax
adc dword ptr[esp + 24H], edx
mov eax, 1
mov edx, 0
cmp dword ptr[esp + 24H], ebx
jc @046
ja @045
cmp dword ptr[esp + 20H], ecx
jc @046
@045: mov eax, 0
mov edx, 0
@046: add dword ptr[esp + 38H], eax
adc dword ptr[esp + 3CH], edx
add ebp, 1
sub edi, 8
cmp ebp, dword ptr[esp + 34H]
ja @048
cmp ebp, 3
jbe @039
mov esi, dword ptr[esp + 8H]
mov edi, dword ptr[esp + 0CH]
jmp @049
@047: mov esi, dword ptr[esp]
mov edi, dword ptr[esp + 4H]
mov eax, dword ptr[esp + 38H]
mov edx, dword ptr[esp + 3CH]
mov dword ptr[esp + 20H], eax
mov dword ptr[esp + 24H], edx
mov dword ptr[esp + 38H], 0
mov dword ptr[esp + 3CH], 0
jmp @049
@048: mov esi, dword ptr[esp + 8H]
mov edi, dword ptr[esp + 0CH]
@049: mov ebx, dword ptr[esp + 48H]
mov eax, dword ptr[esp + 34H]
mov dword ptr[ebx + eax * 8], esi
mov dword ptr[ebx + eax * 8 + 4H], edi
add eax, 1
mov dword ptr[esp + 34H], eax
mov ebx, dword ptr[esp + 20H]
mov esi, dword ptr[esp + 24H]
mov dword ptr[esp], ebx
mov dword ptr[esp + 4H], esi
mov ebx, dword ptr[esp + 44H]
lea ebx, [ebx + 1H]
mov dword ptr[esp + 44H], ebx
cmp eax, 7
jne @037
mov ebx, dword ptr[esp + 48H]
mov eax, dword ptr[esp + 20H]
mov edx, dword ptr[esp + 24H]
mov dword ptr[ebx + 38H], eax
mov dword ptr[ebx + 3CH], edx
add esp, 84
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_modAdd;
asm
push esi
push ebx
sub esp, 4
mov ebx, eax
mov esi, dword ptr[esp + 10H]
call _vli_add
or edx, eax
jnz @050
mov edx, esi
mov eax, ebx
call _vli_cmp
test eax, eax
js @051
@050: mov ecx, esi
mov edx, ebx
mov eax, ebx
call _vli_sub
@051: add esp, 4
pop ebx
pop esi
end;
procedure _vli_modSub;
asm
push ebx
mov ebx, eax
call _vli_sub
or edx, eax
jz @052
mov ecx, dword ptr[esp + 8H]
mov edx, ebx
mov eax, ebx
call _vli_add
@052: pop ebx
end;
procedure _vli_mmod_fast;
asm
push ebp
push edi
push esi
push ebx
sub esp, 36
mov ebx, eax
mov edi, edx
call _vli_set
mov dword ptr[esp], 0
mov dword ptr[esp + 4H], 0
mov dword ptr[esp + 8H], 0
mov eax, dword ptr[edi + 2CH]
mov dword ptr[esp + 0CH], eax
mov eax, dword ptr[edi + 30H]
mov edx, dword ptr[edi + 34H]
mov dword ptr[esp + 10H], eax
mov dword ptr[esp + 14H], edx
mov eax, dword ptr[edi + 38H]
mov edx, dword ptr[edi + 3CH]
mov dword ptr[esp + 18H], eax
mov dword ptr[esp + 1CH], edx
mov ecx, 1
mov edx, esp
mov eax, esp
call _vli_lshift
mov esi, eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_add
add esi, eax
mov eax, dword ptr[edi + 30H]
mov ecx, dword ptr[edi + 34H]
mov dword ptr[esp + 8H], 0
mov dword ptr[esp + 0CH], eax
mov edx, dword ptr[edi + 38H]
mov eax, dword ptr[edi + 3CH]
mov dword ptr[esp + 10H], ecx
mov dword ptr[esp + 14H], edx
mov dword ptr[esp + 18H], eax
mov dword ptr[esp + 1CH], 0
mov ecx, 1
mov edx, esp
mov eax, esp
call _vli_lshift
add esi, eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_add
add esi, eax
mov eax, dword ptr[edi + 20H]
mov edx, dword ptr[edi + 24H]
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
mov eax, dword ptr[edi + 28H]
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], 0
mov dword ptr[esp + 10H], 0
mov dword ptr[esp + 14H], 0
mov eax, dword ptr[edi + 38H]
mov edx, dword ptr[edi + 3CH]
mov dword ptr[esp + 18H], eax
mov dword ptr[esp + 1CH], edx
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_add
add esi, eax
mov ecx, dword ptr[edi + 24H]
mov edx, dword ptr[edi + 28H]
mov eax, dword ptr[edi + 2CH]
mov dword ptr[esp], ecx
mov dword ptr[esp + 4H], edx
mov ecx, dword ptr[edi + 34H]
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], ecx
mov eax, dword ptr[edi + 38H]
mov edx, dword ptr[edi + 3CH]
mov dword ptr[esp + 10H], eax
mov dword ptr[esp + 14H], edx
mov dword ptr[esp + 18H], ecx
mov eax, dword ptr[edi + 20H]
mov dword ptr[esp + 1CH], eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_add
add esi, eax
mov eax, dword ptr[edi + 28H]
mov ecx, dword ptr[edi + 30H]
mov edx, dword ptr[edi + 34H]
mov ebp, dword ptr[edi + 2CH]
mov dword ptr[esp], ebp
mov dword ptr[esp + 4H], ecx
mov dword ptr[esp + 8H], edx
mov dword ptr[esp + 0CH], 0
mov dword ptr[esp + 10H], 0
mov dword ptr[esp + 14H], 0
mov edx, dword ptr[edi + 20H]
mov dword ptr[esp + 18H], edx
mov dword ptr[esp + 1CH], eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_sub
sub esi, eax
mov eax, dword ptr[edi + 30H]
mov edx, dword ptr[edi + 34H]
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
mov eax, dword ptr[edi + 38H]
mov edx, dword ptr[edi + 3CH]
mov dword ptr[esp + 8H], eax
mov dword ptr[esp + 0CH], edx
mov dword ptr[esp + 10H], 0
mov dword ptr[esp + 14H], 0
mov edx, dword ptr[edi + 24H]
mov eax, dword ptr[edi + 2CH]
mov dword ptr[esp + 18H], edx
mov dword ptr[esp + 1CH], eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_sub
sub esi, eax
mov eax, dword ptr[edi + 30H]
mov ecx, dword ptr[edi + 34H]
mov edx, dword ptr[edi + 38H]
mov dword ptr[esp], ecx
mov dword ptr[esp + 4H], edx
mov edx, dword ptr[edi + 20H]
mov ecx, dword ptr[edi + 24H]
mov ebp, dword ptr[edi + 3CH]
mov dword ptr[esp + 8H], ebp
mov dword ptr[esp + 0CH], edx
mov edx, dword ptr[edi + 28H]
mov dword ptr[esp + 10H], ecx
mov dword ptr[esp + 14H], edx
mov dword ptr[esp + 18H], 0
mov dword ptr[esp + 1CH], eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_sub
sub esi, eax
mov eax, dword ptr[edi + 38H]
mov edx, dword ptr[edi + 3CH]
mov dword ptr[esp], eax
mov dword ptr[esp + 4H], edx
mov dword ptr[esp + 8H], 0
mov eax, dword ptr[edi + 24H]
mov dword ptr[esp + 0CH], eax
mov eax, dword ptr[edi + 28H]
mov edx, dword ptr[edi + 2CH]
mov dword ptr[esp + 10H], eax
mov dword ptr[esp + 14H], edx
mov dword ptr[esp + 18H], 0
mov eax, dword ptr[edi + 34H]
mov dword ptr[esp + 1CH], eax
mov ecx, esp
mov edx, ebx
mov eax, ebx
call _vli_sub
sub esi, eax
jns @055
@053: mov ecx, offset _curve_p
mov edx, ebx
mov eax, ebx
call _vli_add
add eax, esi
mov esi, eax
test eax, eax
js @053
jmp @056
@054: mov ecx, offset _curve_p
mov edx, ebx
mov eax, ebx
call _vli_sub
sub esi, eax
@055: test esi, esi
jnz @054
mov edx, ebx
mov eax, offset _curve_p
call _vli_cmp
cmp eax, 1
jnz @054
@056: add esp, 36
pop ebx
pop esi
pop edi
pop ebp
end;
procedure _vli_modMult_fast;
asm
push ebx
sub esp, 64
mov ebx, eax
mov eax, esp
call _vli_mult
mov edx, esp
mov eax, ebx
call _vli_mmod_fast
add esp, 64
pop ebx
end;
procedure _vli_modInv;
asm
push ebp
push edi
push esi
push ebx
sub esp, 132
mov esi, eax
mov edi, edx
mov ebx, ecx
mov eax, edx
call _vli_isZero
test eax, eax
jz @057
mov eax, esi
call _vli_clear
jmp @069
@057: mov edx, edi
lea eax, [esp + 60H]
call _vli_set
mov edx, ebx
lea eax, [esp + 40H]
call _vli_set
lea eax, [esp + 20H]
call _vli_clear
mov dword ptr[esp + 20H], 1
mov dword ptr[esp + 24H], 0
mov eax, esp
call _vli_clear
jmp @064
@058: test byte ptr[esp + 60H], 01H
jnz @059
lea eax, [esp + 60H]
call _vli_rshift1
test byte ptr[esp + 20H], 01H
je @065
mov ecx, ebx
lea edx, [esp + 20H]
mov eax, edx
call _vli_add
mov edi, eax
mov ebp, edx
lea eax, [esp + 20H]
call _vli_rshift1
or ebp, edi
je @064
or dword ptr[esp + 38H], 00H
or dword ptr[esp + 3CH], 80000000H
jmp @064
@059: test byte ptr[esp + 40H], 01H
jnz @060
lea eax, [esp + 40H]
call _vli_rshift1
test byte ptr[esp], 01H
je @066
mov ecx, ebx
mov edx, esp
mov eax, esp
call _vli_add
mov edi, eax
mov ebp, edx
mov eax, esp
call _vli_rshift1
or ebp, edi
je @064
or dword ptr[esp + 18H], 00H
or dword ptr[esp + 1CH], 80000000H
jmp @064
@060: test eax, eax
jle @062
lea ecx, [esp + 40H]
lea edx, [esp + 60H]
mov eax, edx
call _vli_sub
lea eax, [esp + 60H]
call _vli_rshift1
mov edx, esp
lea eax, [esp + 20H]
call _vli_cmp
test eax, eax
jns @061
mov ecx, ebx
lea edx, [esp + 20H]
mov eax, edx
call _vli_add
@061: mov ecx, esp
lea edx, [esp + 20H]
mov eax, edx
call _vli_sub
test byte ptr[esp + 20H], 01H
je @067
mov ecx, ebx
lea edx, [esp + 20H]
mov eax, edx
call _vli_add
mov edi, eax
mov ebp, edx
lea eax, [esp + 20H]
call _vli_rshift1
or ebp, edi
jz @064
or dword ptr[esp + 38H], 00H
or dword ptr[esp + 3CH], 80000000H
jmp @064
@062: lea ecx, [esp + 60H]
lea edx, [esp + 40H]
mov eax, edx
call _vli_sub
lea eax, [esp + 40H]
call _vli_rshift1
lea edx, [esp + 20H]
mov eax, esp
call _vli_cmp
test eax, eax
jns @063
mov ecx, ebx
mov edx, esp
mov eax, esp
call _vli_add
@063: lea ecx, [esp + 20H]
mov edx, esp
mov eax, esp
call _vli_sub
test byte ptr[esp], 01H
jz @068
mov ecx, ebx
mov edx, esp
mov eax, esp