+++ /dev/null
-dnl AMD K6-2 mpn_com_n -- mpn bitwise one's complement.
-dnl
-dnl alignment dst/src, A=0mod8 N=4mod8
-dnl A/A A/N N/A N/N
-dnl K6-2 1.0 1.18 1.18 1.18 cycles/limb
-dnl K6 1.5 1.85 1.75 1.85
-
-
-dnl Copyright (C) 1999, 2000 Free Software Foundation, Inc.
-dnl
-dnl This file is part of the GNU MP Library.
-dnl
-dnl The GNU MP Library is free software; you can redistribute it and/or
-dnl modify it under the terms of the GNU Lesser General Public License as
-dnl published by the Free Software Foundation; either version 2.1 of the
-dnl License, or (at your option) any later version.
-dnl
-dnl The GNU MP Library is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-dnl Lesser General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU Lesser General Public
-dnl License along with the GNU MP Library; see the file COPYING.LIB. If
-dnl not, write to the Free Software Foundation, Inc., 59 Temple Place -
-dnl Suite 330, Boston, MA 02111-1307, USA.
-
-
-include(`../config.m4')
-
-
-C void mpn_com_n (mp_ptr dst, mp_srcptr src, mp_size_t size);
-C
-C Take the bitwise ones-complement of src,size and write it to dst,size.
-
-defframe(PARAM_SIZE,12)
-defframe(PARAM_SRC, 8)
-defframe(PARAM_DST, 4)
-
- .text
- ALIGN(32)
-PROLOGUE(mpn_com_n)
-deflit(`FRAME',0)
-
- movl PARAM_SIZE, %ecx
- movl PARAM_SRC, %eax
- movl PARAM_DST, %edx
- shrl %ecx
- jnz L(two_or_more)
-
- movl (%eax), %eax
- notl %eax
- movl %eax, (%edx)
- ret
-
-
-L(two_or_more):
- pushl %ebx
-FRAME_pushl()
- movl %ecx, %ebx
-
- pcmpeqd %mm7, %mm7 C all ones
-
-
- ALIGN(16)
-L(top):
- C eax src
- C ebx floor(size/2)
- C ecx counter
- C edx dst
- C esi
- C edi
- C ebp
-
- movq -8(%eax,%ecx,8), %mm0
- pxor %mm7, %mm0
- movq %mm0, -8(%edx,%ecx,8)
- loop L(top)
-
-
- jnc L(no_extra)
- movl (%eax,%ebx,8), %eax
- notl %eax
- movl %eax, (%edx,%ebx,8)
-L(no_extra):
-
- popl %ebx
- emms_or_femms
- ret
-
-EPILOGUE()