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head/lib/libc/powerpc64/string/memcpy_vsx.S
Property | Old Value | New Value |
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svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* Copyright (c) 2018 Instituto de Pesquisas Eldorado | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* 3. Neither the name of the author nor the names of its contributors may | |||||
* be used to endorse or promote products derived from this software | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#define FN_NAME __memcpy_vsx | |||||
#define BLOCK_BITS 6 | |||||
/* | |||||
* r5: bytes to copy (multiple of BLOCK_BYTES) | |||||
* | |||||
*/ | |||||
#define FN_COPY_LOOP \ | |||||
/* Load CTR with number of blocks */ \ | |||||
srdi %r5, %r5, BLOCK_BITS ;\ | |||||
mtctr %r5 ;\ | |||||
/* Prepare indexes to load and store data */ \ | |||||
xor %r6, %r6, %r6 ;\ | |||||
li %r9, 16 ;\ | |||||
li %r10, 32 ;\ | |||||
li %r11, 48 ;\ | |||||
.Lcopy_vsx_loop: \ | |||||
lxvd2x %vs6, %r6, %r4 ;\ | |||||
lxvd2x %vs7, %r9, %r4 ;\ | |||||
lxvd2x %vs8, %r10, %r4 ;\ | |||||
lxvd2x %vs9, %r11, %r4 ;\ | |||||
stxvd2x %vs6, %r6, %r3 ;\ | |||||
stxvd2x %vs7, %r9, %r3 ;\ | |||||
stxvd2x %vs8, %r10, %r3 ;\ | |||||
stxvd2x %vs9, %r11, %r3 ;\ | |||||
\ | |||||
addi %r3, %r3, BLOCK_BYTES ;\ | |||||
addi %r4, %r4, BLOCK_BYTES ;\ | |||||
bdnz .Lcopy_vsx_loop ;\ | |||||
\ | |||||
/* Check if there is remaining bytes */ \ | |||||
cmpd %r7, 0 ;\ | |||||
beq .Lexit ;\ | |||||
#include "memcpy.S" |