mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 17:11:06 +00:00
893a5fd440
* sysdeps/x86_64/add_n.S: New file. * sysdeps/x86_64/addmul_1.S: New file. * sysdeps/x86_64/lshift.S: New file. * sysdeps/x86_64/mul_1.S: New file. * sysdeps/x86_64/rshift.S: New file. * sysdeps/x86_64/sub_n.S: New file. * sysdeps/x86_64/submul_1.S: New file.
43 lines
1.4 KiB
ArmAsm
43 lines
1.4 KiB
ArmAsm
/* AMD64 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store
|
|
sum in a third limb vector.
|
|
Copyright (C) 2004 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, write to
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include "sysdep.h"
|
|
#include "asm-syntax.h"
|
|
|
|
.text
|
|
ENTRY (__mpn_sub_n)
|
|
leaq (%rsi,%rcx,8), %rsi
|
|
leaq (%rdi,%rcx,8), %rdi
|
|
leaq (%rdx,%rcx,8), %rdx
|
|
negq %rcx
|
|
xorl %eax, %eax # clear cy
|
|
.p2align 2
|
|
L(loop):
|
|
movq (%rsi,%rcx,8), %rax
|
|
movq (%rdx,%rcx,8), %r10
|
|
sbbq %r10, %rax
|
|
movq %rax, (%rdi,%rcx,8)
|
|
incq %rcx
|
|
jne L(loop)
|
|
movq %rcx, %rax # zero %rax
|
|
adcq %rax, %rax
|
|
ret
|
|
END (__mpn_sub_n)
|