diff options
Diffstat (limited to 'sysdeps/i386/memcopy.h')
| -rw-r--r-- | sysdeps/i386/memcopy.h | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/sysdeps/i386/memcopy.h b/sysdeps/i386/memcopy.h deleted file mode 100644 index dc6173ee29..0000000000 --- a/sysdeps/i386/memcopy.h +++ /dev/null @@ -1,92 +0,0 @@ -/* memcopy.h -- definitions for memory copy functions. i386 version. - Copyright (C) 1991-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Torbjorn Granlund (tege@sics.se). - - The GNU C 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 C 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 C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdeps/generic/memcopy.h> - -#undef OP_T_THRES -#define OP_T_THRES 8 - -#undef BYTE_COPY_FWD -#define BYTE_COPY_FWD(dst_bp, src_bp, nbytes) \ - do { \ - int __d0; \ - asm volatile(/* Clear the direction flag, so copying goes forward. */ \ - "cld\n" \ - /* Copy bytes. */ \ - "rep\n" \ - "movsb" : \ - "=D" (dst_bp), "=S" (src_bp), "=c" (__d0) : \ - "0" (dst_bp), "1" (src_bp), "2" (nbytes) : \ - "memory"); \ - } while (0) - -#undef BYTE_COPY_BWD -#define BYTE_COPY_BWD(dst_ep, src_ep, nbytes) \ - do \ - { \ - int __d0; \ - asm volatile(/* Set the direction flag, so copying goes backwards. */ \ - "std\n" \ - /* Copy bytes. */ \ - "rep\n" \ - "movsb\n" \ - /* Clear the dir flag. Convention says it should be 0. */ \ - "cld" : \ - "=D" (dst_ep), "=S" (src_ep), "=c" (__d0) : \ - "0" (dst_ep - 1), "1" (src_ep - 1), "2" (nbytes) : \ - "memory"); \ - dst_ep += 1; \ - src_ep += 1; \ - } while (0) - -#undef WORD_COPY_FWD -#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \ - do \ - { \ - int __d0; \ - asm volatile(/* Clear the direction flag, so copying goes forward. */ \ - "cld\n" \ - /* Copy longwords. */ \ - "rep\n" \ - "movsl" : \ - "=D" (dst_bp), "=S" (src_bp), "=c" (__d0) : \ - "0" (dst_bp), "1" (src_bp), "2" ((nbytes) / 4) : \ - "memory"); \ - (nbytes_left) = (nbytes) % 4; \ - } while (0) - -#undef WORD_COPY_BWD -#define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes) \ - do \ - { \ - int __d0; \ - asm volatile(/* Set the direction flag, so copying goes backwards. */ \ - "std\n" \ - /* Copy longwords. */ \ - "rep\n" \ - "movsl\n" \ - /* Clear the dir flag. Convention says it should be 0. */ \ - "cld" : \ - "=D" (dst_ep), "=S" (src_ep), "=c" (__d0) : \ - "0" (dst_ep - 4), "1" (src_ep - 4), "2" ((nbytes) / 4) : \ - "memory"); \ - dst_ep += 4; \ - src_ep += 4; \ - (nbytes_left) = (nbytes) % 4; \ - } while (0) |