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/*-
* 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
#define ALIGN_MASK 0xf
/*
* 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"
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