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scal_vfp.S
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/***************************************************************************
Copyright (c) 2013, The OpenBLAS Project
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 OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 OPENBLAS PROJECT 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.
*****************************************************************************/
/**************************************************************************************
* 2013/11/15 Saar
* BLASTEST : OK
* CTEST : OK
* TEST : OK
*
**************************************************************************************/
#define ASSEMBLER
#include "common.h"
#define STACKSIZE 256
#define OLD_INC_X [sp, #0 ]
#define N r0
#define INC_X r1
#define X r3
#define I r12
#define X_PRE 512
/**************************************************************************************
* Macro definitions
**************************************************************************************/
/*****************************************************************************************/
#if !defined(COMPLEX)
#if defined(DOUBLE)
.macro KERNEL_F4
pld [ X, #X_PRE ]
vldmia.f64 X, { d4 - d7 }
vmul.f64 d4, d4, d0
vmul.f64 d5, d5, d0
vmul.f64 d6, d6, d0
vstmia.f64 X!, { d4 - d5 }
vmul.f64 d7, d7, d0
vstmia.f64 X!, { d6 - d7 }
.endm
.macro KERNEL_F1
vldmia.f64 X, { d4 }
vmul.f64 d4, d4, d0
vstmia.f64 X!, { d4 }
.endm
.macro KERNEL_S1
vldmia.f64 X, { d4 }
vmul.f64 d4, d4, d0
vstmia.f64 X, { d4 }
add X, X, INC_X
.endm
#else
.macro KERNEL_F4
vldmia.f32 X, { s4 - s7 }
vmul.f32 s4, s4, s0
vmul.f32 s5, s5, s0
vmul.f32 s6, s6, s0
vstmia.f32 X!, { s4 - s5 }
vmul.f32 s7, s7, s0
vstmia.f32 X!, { s6 - s7 }
.endm
.macro KERNEL_F1
vldmia.f32 X, { s4 }
vmul.f32 s4, s4, s0
vstmia.f32 X!, { s4 }
.endm
.macro KERNEL_S1
vldmia.f32 X, { s4 }
vmul.f32 s4, s4, s0
vstmia.f32 X, { s4 }
add X, X, INC_X
.endm
#endif
#else
#if defined(DOUBLE)
.macro KERNEL_F4
pld [ X, #X_PRE ]
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X!, { d2 - d3 }
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X!, { d2 - d3 }
pld [ X, #X_PRE ]
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X!, { d2 - d3 }
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X!, { d2 - d3 }
.endm
.macro KERNEL_F1
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X!, { d2 - d3 }
.endm
.macro KERNEL_S1
vldmia.f64 X, { d4 - d5 }
vmul.f64 d2, d0, d4
vmls.f64 d2, d1, d5
vmul.f64 d3, d0, d5
fmacd d3, d1, d4
vstmia.f64 X, { d2 - d3 }
add X, X, INC_X
.endm
#else
.macro KERNEL_F4
pld [ X, #X_PRE ]
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X!, { s2 - s3 }
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X!, { s2 - s3 }
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X!, { s2 - s3 }
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X!, { s2 - s3 }
.endm
.macro KERNEL_F1
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X!, { s2 - s3 }
.endm
.macro KERNEL_S1
vldmia.f32 X, { s4 - s5 }
vmul.f32 s2, s0, s4
vmls.f32 s2, s1, s5
vmul.f32 s3, s0, s5
fmacs s3, s1, s4
vstmia.f32 X, { s2 - s3 }
add X, X, INC_X
.endm
#endif
#endif
/**************************************************************************************
* End of macro definitions
**************************************************************************************/
PROLOGUE
.align 5
ldr INC_X , OLD_INC_X
cmp N, #0
ble scal_kernel_L999
cmp INC_X, #0
ble scal_kernel_L999
cmp INC_X, #1
bne scal_kernel_S_BEGIN
scal_kernel_F_BEGIN:
asrs I, N, #2 // I = N / 4
ble scal_kernel_F1
.align 5
scal_kernel_F4:
#if !defined(COMPLEX) && !defined(DOUBLE)
pld [ X, #X_PRE ]
#endif
KERNEL_F4
subs I, I, #1
ble scal_kernel_F1
KERNEL_F4
subs I, I, #1
bne scal_kernel_F4
scal_kernel_F1:
ands I, N, #3
ble scal_kernel_L999
scal_kernel_F10:
KERNEL_F1
subs I, I, #1
bne scal_kernel_F10
b scal_kernel_L999
scal_kernel_S_BEGIN:
#if defined(COMPLEX)
#if defined(DOUBLE)
lsl INC_X, INC_X, #4 // INC_X * SIZE * 2
#else
lsl INC_X, INC_X, #3 // INC_X * SIZE * 2
#endif
#else
#if defined(DOUBLE)
lsl INC_X, INC_X, #3 // INC_X * SIZE
#else
lsl INC_X, INC_X, #2 // INC_X * SIZE
#endif
#endif
asrs I, N, #2 // I = N / 4
ble scal_kernel_S1
.align 5
scal_kernel_S4:
KERNEL_S1
KERNEL_S1
KERNEL_S1
KERNEL_S1
subs I, I, #1
bne scal_kernel_S4
scal_kernel_S1:
ands I, N, #3
ble scal_kernel_L999
scal_kernel_S10:
KERNEL_S1
subs I, I, #1
bne scal_kernel_S10
scal_kernel_L999:
mov r0, #0 // set return value
bx lr
EPILOGUE