123 lines
3.0 KiB
NASM
123 lines
3.0 KiB
NASM
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; Core2 mpn_mul_1 -- mpn by limb multiply (with carry)
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; Version 1.0.3.
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;
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; Copyright 2008 Jason Moxham
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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; This file is part of the MPIR Library.
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; The MPIR Library is free software; you can redistribute it and/or modify
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; it under the terms of the GNU Lesser General Public License as published
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; by the Free Software Foundation; either version 2.1 of the License, or (at
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; your option) any later version.
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; The MPIR Library is distributed in the hope that it will be useful, but
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; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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; License for more details.
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; You should have received a copy of the GNU Lesser General Public License
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; along with the MPIR Library; see the file COPYING.LIB. If not, write
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; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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; Boston, MA 02110-1301, USA.
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;
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; Calling interface:
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;
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; mp_limb_t mpn_mul_1 (
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; mp_ptr dst, rcx
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; mp_srcptr src, rdx
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; mp_size_t size, r8
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; mp_limb_t multiplier r9
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; )
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;
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; mp_limb_t mpn_mul_1c (
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; mp_ptr dst, rcx
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; mp_srcptr src, rdx
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; mp_size_t size, r8
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; mp_limb_t multiplier, r9
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; mp_limb_t carry [rsp+0x28]
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; )
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;
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; This is an SEH frame function with two leaf prologues
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%include "..\yasm_mac.inc"
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CPU Core2
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BITS 64
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LEAF_PROC mpn_mul_1c
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mov r11, [rsp+0x28]
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jmp start
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LEAF_PROC mpn_mul_1
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xor r11, r11
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jmp start
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xalign 16
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start:
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FRAME_PROC ?mpn_mul, 0, rbx
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movsxd rax, r8d
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mov r8d, 3
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lea r10, [rdx+rax*8-24]
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sub r8, rax
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lea rcx, [rcx+rax*8-24]
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jc .1
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jmp .2
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xalign 16
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.1: mov rax, [r10+r8*8]
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mov ebx, 0
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mul r9
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add r11, rax
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mov [rcx+r8*8], r11
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mov rax, [r10+r8*8+8]
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adc rbx, rdx
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mul r9
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mov r11d, 0
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add rbx, rax
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mov rax, [r10+r8*8+16]
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adc r11, rdx
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mul r9
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mov [rcx+r8*8+8], rbx
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add r11, rax
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mov ebx, 0
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mov [rcx+r8*8+16], r11
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mov rax, [r10+r8*8+24]
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mov r11d, 0
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adc rbx, rdx
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mul r9
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add rbx, rax
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mov [rcx+r8*8+24], rbx
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adc r11, rdx
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add r8, 4
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jnc .1
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.2: test r8, 2
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jnz .3
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mov rax, [r10+r8*8]
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mov ebx, 0
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mul r9
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add r11, rax
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mov [rcx+r8*8], r11
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mov rax, [r10+r8*8+8]
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adc rbx, rdx
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mul r9
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mov r11d, 0
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add rbx, rax
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adc r11, rdx
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add r8, 2
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mov [rcx+r8*8-8], rbx
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.3: test r8, 1
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mov rax, r11
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jnz .4
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mov rax, [r10+r8*8]
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mov ebx, 0
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mul r9
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add r11, rax
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mov [rcx+r8*8], r11
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adc rbx, rdx
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mov rax, rbx
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.4: END_PROC rbx
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end
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