diff options
Diffstat (limited to 'sysdeps/x86_64/add_n.S')
| -rw-r--r-- | sysdeps/x86_64/add_n.S | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/sysdeps/x86_64/add_n.S b/sysdeps/x86_64/add_n.S deleted file mode 100644 index 4ba83c0bdb..0000000000 --- a/sysdeps/x86_64/add_n.S +++ /dev/null @@ -1,100 +0,0 @@ -/* x86-64 __mpn_add_n -- Add two limb vectors of the same length > 0 and store - sum in a third limb vector. - Copyright (C) 2006-2017 Free Software Foundation, Inc. - This file is part of the GNU MP Library. - - The GNU MP 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 GNU MP 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 GNU MP Library; see the file COPYING.LIB. If not, - see <http://www.gnu.org/licenses/>. */ - -#include "sysdep.h" -#include "asm-syntax.h" - -#define rp %rdi -#define up %rsi -#define vp %rdx -#define n %rcx -#define cy %r8 - -#ifndef func -# define func __mpn_add_n -# define ADCSBB adc -#endif - - .text -ENTRY (func) - xor %r8, %r8 - mov (up), %r10 - mov (vp), %r11 - - lea -8(up,n,8), up - lea -8(vp,n,8), vp - lea -16(rp,n,8), rp - mov %ecx, %eax - neg n - and $3, %eax - je L(b00) - add %rax, n /* clear low rcx bits for jrcxz */ - cmp $2, %eax - jl L(b01) - je L(b10) - -L(b11): shr %r8 /* set cy */ - jmp L(e11) - -L(b00): shr %r8 /* set cy */ - mov %r10, %r8 - mov %r11, %r9 - lea 4(n), n - jmp L(e00) - -L(b01): shr %r8 /* set cy */ - jmp L(e01) - -L(b10): shr %r8 /* set cy */ - mov %r10, %r8 - mov %r11, %r9 - jmp L(e10) - -L(end): ADCSBB %r11, %r10 - mov %r10, 8(rp) - mov %ecx, %eax /* clear eax, ecx contains 0 */ - adc %eax, %eax - ret - - .p2align 4 -L(top): - mov -24(up,n,8), %r8 - mov -24(vp,n,8), %r9 - ADCSBB %r11, %r10 - mov %r10, -24(rp,n,8) -L(e00): - mov -16(up,n,8), %r10 - mov -16(vp,n,8), %r11 - ADCSBB %r9, %r8 - mov %r8, -16(rp,n,8) -L(e11): - mov -8(up,n,8), %r8 - mov -8(vp,n,8), %r9 - ADCSBB %r11, %r10 - mov %r10, -8(rp,n,8) -L(e10): - mov (up,n,8), %r10 - mov (vp,n,8), %r11 - ADCSBB %r9, %r8 - mov %r8, (rp,n,8) -L(e01): - jrcxz L(end) - lea 4(n), n - jmp L(top) -END (func) |