142 lines
3.8 KiB
NASM
142 lines
3.8 KiB
NASM
;*!
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;* \copy
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;* Copyright (c) 2009-2013, Cisco Systems
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;* All rights reserved.
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;*
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;* Redistribution and use in source and binary forms, with or without
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;* modification, are permitted provided that the following conditions
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;* are met:
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;*
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;* * Redistributions of source code must retain the above copyright
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;* notice, this list of conditions and the following disclaimer.
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;*
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;* * Redistributions in binary form must reproduce the above copyright
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;* notice, this list of conditions and the following disclaimer in
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;* the documentation and/or other materials provided with the
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;* distribution.
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;*
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;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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;* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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;* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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;* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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;* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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;* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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;* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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;* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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;* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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;* POSSIBILITY OF SUCH DAMAGE.
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;*
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;*
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;* memzero.asm
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;*
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;* Abstract
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;*
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;*
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;* History
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;* 9/16/2009 Created
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;*
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;*
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;*************************************************************************/
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%include "asm_inc.asm"
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;***********************************************************************
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; Code
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;***********************************************************************
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SECTION .text
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ALIGN 16
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;***********************************************************************
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;void WelsPrefetchZero_mmx(int8_t const*_A);
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;***********************************************************************
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WELS_EXTERN WelsPrefetchZero_mmx
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WelsPrefetchZero_mmx:
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%assign push_num 0
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LOAD_1_PARA
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;mov eax,[esp+4]
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prefetchnta [r0]
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ret
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ALIGN 16
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;***********************************************************************
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; void WelsSetMemZeroAligned64_sse2(void *dst, int32_t size)
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;***********************************************************************
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WELS_EXTERN WelsSetMemZeroAligned64_sse2
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WelsSetMemZeroAligned64_sse2:
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%assign push_num 0
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LOAD_2_PARA
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SIGN_EXTENSION r1, r1d
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neg r1
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pxor xmm0, xmm0
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.memzeroa64_sse2_loops:
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movdqa [r0], xmm0
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movdqa [r0+16], xmm0
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movdqa [r0+32], xmm0
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movdqa [r0+48], xmm0
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add r0, 0x40
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add r1, 0x40
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jnz near .memzeroa64_sse2_loops
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ret
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ALIGN 16
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;***********************************************************************
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; void WelsSetMemZeroSize64_mmx(void *dst, int32_t size)
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;***********************************************************************
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WELS_EXTERN WelsSetMemZeroSize64_mmx
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WelsSetMemZeroSize64_mmx:
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%assign push_num 0
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LOAD_2_PARA
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SIGN_EXTENSION r1, r1d
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neg r1
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pxor mm0, mm0
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.memzero64_mmx_loops:
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movq [r0], mm0
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movq [r0+8], mm0
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movq [r0+16], mm0
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movq [r0+24], mm0
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movq [r0+32], mm0
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movq [r0+40], mm0
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movq [r0+48], mm0
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movq [r0+56], mm0
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add r0, 0x40
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add r1, 0x40
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jnz near .memzero64_mmx_loops
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WELSEMMS
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ret
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ALIGN 16
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;***********************************************************************
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; void WelsSetMemZeroSize8_mmx(void *dst, int32_t size)
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;***********************************************************************
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WELS_EXTERN WelsSetMemZeroSize8_mmx
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WelsSetMemZeroSize8_mmx:
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%assign push_num 0
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LOAD_2_PARA
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SIGN_EXTENSION r1, r1d
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neg r1
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pxor mm0, mm0
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.memzero8_mmx_loops:
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movq [r0], mm0
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add r0, 0x08
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add r1, 0x08
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jnz near .memzero8_mmx_loops
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WELSEMMS
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ret
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