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/*
* Copyright (c) 2008 Siarhei Siamashka <ssvb@users.sourceforge.net>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "asm.S"
/**
* Assume that len is a positive number and is multiple of 8
*/
@ void ff_vector_fmul_vfp(float *dst, const float *src0, const float *src1, int len)
function ff_vector_fmul_vfp, export=1
vpush {d8-d15}
fmrx r12, fpscr
orr r12, r12, #(3 << 16) /* set vector size to 4 */
fmxr fpscr, r12
vldmia r1!, {s0-s3}
vldmia r2!, {s8-s11}
vldmia r1!, {s4-s7}
vldmia r2!, {s12-s15}
vmul.f32 s8, s0, s8
1:
subs r3, r3, #16
vmul.f32 s12, s4, s12
itttt ge
vldmiage r1!, {s16-s19}
vldmiage r2!, {s24-s27}
vldmiage r1!, {s20-s23}
vldmiage r2!, {s28-s31}
it ge
vmulge.f32 s24, s16, s24
vstmia r0!, {s8-s11}
vstmia r0!, {s12-s15}
it ge
vmulge.f32 s28, s20, s28
itttt gt
vldmiagt r1!, {s0-s3}
vldmiagt r2!, {s8-s11}
vldmiagt r1!, {s4-s7}
vldmiagt r2!, {s12-s15}
ittt ge
vmulge.f32 s8, s0, s8
vstmiage r0!, {s24-s27}
vstmiage r0!, {s28-s31}
bgt 1b
bic r12, r12, #(7 << 16) /* set vector size back to 1 */
fmxr fpscr, r12
vpop {d8-d15}
bx lr
endfunc
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