42 lines
2.3 KiB
ArmAsm
42 lines
2.3 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ 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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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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.align 16
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/ Mixes audio.
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/
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/ @param rdi is # aligned int16[16] sample chunks to process
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/ @param rsi points to aligned pcm s16le input/output memory
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/ @param rdx points to aligned pcm s16le [0..1] input memory
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sad16x8n:
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.leafprologue
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.profilable
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test %rdi,%rdi
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jz 1f
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shl $3,%rdi
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0: sub $8,%rdi
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movdqa (%rsi,%rdi,2),%xmm0
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paddsw (%rdx,%rdi,2),%xmm0
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movdqa %xmm0,(%rsi,%rdi,2)
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jnz 0b
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1: .leafepilogue
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.endfn sad16x8n,globl,hidden
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.source __FILE__
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