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lib/libc/powerpc64/string/memcpy_vsx.S
- This file was added.
| /*- | |||||
| * 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. | |||||
| * | |||||
| */ | |||||
| #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" | |||||