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87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdeps/generic/memcopy.h>
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#undef OP_T_THRES
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#define OP_T_THRES 32
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#undef BYTE_COPY_FWD
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#define BYTE_COPY_FWD(dst_bp, src_bp, nbytes) \
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do \
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{ \
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size_t __nbytes = nbytes; \
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asm volatile("mtspr 1,%2\n" \
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"lsx 6,0,%1\n" \
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"stsx 6,0,%0" : /* No outputs. */ : \
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"b" (dst_bp), "b" (src_bp), "r" (__nbytes) : \
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"6", "7", "8", "9", "10", "11", "12", "13"); \
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dst_bp += __nbytes; \
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src_bp += __nbytes; \
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} while (0)
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#undef BYTE_COPY_BWD
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#define BYTE_COPY_BWD(dst_ep, src_ep, nbytes) \
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do \
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{ \
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size_t __nbytes; \
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dst_ep -= __nbytes; \
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src_ep -= __nbytes; \
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asm volatile("mtspr 1,%2\n" \
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"lsx 6,0,%1\n" \
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"stsx 6,0,%0" : /* No outputs. */ : \
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"b" (dst_ep), "b" (src_ep), "r" (__nbytes) : \
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"6", "7", "8", "9", "10", "11", "12", "13"); \
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} while (0)
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#undef WORD_COPY_FWD
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#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \
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do \
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{ \
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size_t __nblocks = (nbytes) / 32; \
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if (__nblocks != 0) \
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asm volatile("mtctr %4\n" \
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"lsi 6,%1,32\n" \
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"ai %1,%1,32\n" \
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"stsi 6,%0,32\n" \
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"ai %0,%0,32\n" \
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"bdn $-16" : \
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"=b" (dst_bp), "=b" (src_bp) : \
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"0" (dst_bp), "1" (src_bp), "r" (__nblocks) : \
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"6", "7", "8", "9", "10", "11", "12", "13"); \
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(nbytes_left) = (nbytes) % 32; \
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} while (0)
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#undef WORD_COPY_BWD
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#define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes) \
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do \
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{ \
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size_t __nblocks = (nbytes) / 32; \
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if (__nblocks != 0) \
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asm volatile("mtctr %4\n" \
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"ai %1,%1,-32\n" \
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"lsi 6,%1,32\n" \
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"ai %0,%0,-32\n" \
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"stsi 6,%0,32\n" \
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"bdn $-16" : \
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"=b" (dst_ep), "=b" (src_ep) : \
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"0" (dst_ep), "1" (src_ep), "r" (__nblocks) : \
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"6", "7", "8", "9", "10", "11", "12", "13"); \
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(nbytes_left) = (nbytes) % 32; \
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} while (0)
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