mpir/mpn/x86_64w/umul.asm

46 lines
1.2 KiB
NASM

; Copyright 2008 Brian Gladman
;
; This file is part of the MPIR Library.
;
; The MPIR Library is free software; you can redistribute it and/or
; modify it under the terms of the GNU Lesser General Public License as
; published by the Free Software Foundation; either version 2.1 of the
; License, or (at your option) any later version.
;
; The MPIR Library is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; Lesser General Public License for more details.
;
; You should have received a copy of the GNU Lesser General Public
; License along with the MPIR Library; see the file COPYING.LIB. If
; not, write to the Free Software Foundation, Inc., 51 Franklin Street,
; Fifth Floor, Boston, MA 02110-1301, USA.
; mpn_umul_ppmm -- 1x1->2 limb multiplication
;
; mp_limb_t mpn_umul_ppmm (
; mp_limb_t *lowptr, rcx
; mp_limb_t m1, rdx
; mp_limb_t m2 r8
; );
bits 64
section .text
global __gmpn_umul_ppmm
%ifdef DLL
export __gmpn_umul_ppmm
%endif
__gmpn_umul_ppmm:
mov rax,rdx
mul r8
mov [rcx],rax
mov rax,rdx
ret
end