241 lines
5.4 KiB
C
241 lines
5.4 KiB
C
/***************************************************************************
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Copyright (c) 2013 - 2015, The OpenBLAS Project
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All rights reserved.
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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 are
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met:
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1. 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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2. 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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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; 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 LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#if defined(BULLDOZER) || defined(PILEDRIVER) || defined(STEAMROLLER) || defined(EXCAVATOR)
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#include "dscal_microk_bulldozer-2.c"
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#elif defined(SANDYBRIDGE)
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#include "dscal_microk_sandy-2.c"
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#elif defined(HASWELL) || defined(ZEN)
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#include "dscal_microk_haswell-2.c"
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#elif defined (SKYLAKEX) || defined (COOPERLAKE) || defined (SAPPHIRERAPIDS)
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#include "dscal_microk_skylakex-2.c"
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#endif
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#if !defined(HAVE_KERNEL_8)
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static void dscal_kernel_8( BLASLONG n, FLOAT *da , FLOAT *x )
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{
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BLASLONG i;
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FLOAT alpha = *da;
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for( i=0; i<n; i+=8 )
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{
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x[0] *= alpha;
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x[1] *= alpha;
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x[2] *= alpha;
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x[3] *= alpha;
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x[4] *= alpha;
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x[5] *= alpha;
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x[6] *= alpha;
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x[7] *= alpha;
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x+=8;
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}
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}
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static void dscal_kernel_8_zero( BLASLONG n, FLOAT *alpha , FLOAT *x )
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{
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BLASLONG i;
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for( i=0; i<n; i+=8 )
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{
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x[0] = 0.0;
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x[1] = 0.0;
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x[2] = 0.0;
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x[3] = 0.0;
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x[4] = 0.0;
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x[5] = 0.0;
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x[6] = 0.0;
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x[7] = 0.0;
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x+=8;
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}
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}
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#endif
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static void dscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x) __attribute__ ((noinline));
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static void dscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x)
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{
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FLOAT *x1=NULL;
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BLASLONG inc_x3;
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inc_x <<= 3;
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inc_x3 = (inc_x << 1) + inc_x;
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__asm__ __volatile__
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(
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"movddup (%3), %%xmm0 \n\t" // alpha
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"leaq (%1,%4,4), %2 \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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"movsd (%1) , %%xmm4 \n\t"
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"movhpd (%1,%4,1), %%xmm4 \n\t"
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"movsd (%1,%4,2), %%xmm5 \n\t"
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"movhpd (%1,%5,1), %%xmm5 \n\t"
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"movsd (%2) , %%xmm6 \n\t"
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"movhpd (%2,%4,1), %%xmm6 \n\t"
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"movsd (%2,%4,2), %%xmm7 \n\t"
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"movhpd (%2,%5,1), %%xmm7 \n\t"
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"mulpd %%xmm0, %%xmm4 \n\t"
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"mulpd %%xmm0, %%xmm5 \n\t"
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"mulpd %%xmm0, %%xmm6 \n\t"
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"mulpd %%xmm0, %%xmm7 \n\t"
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"movsd %%xmm4 , (%1) \n\t"
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"movhpd %%xmm4 , (%1,%4,1) \n\t"
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"movsd %%xmm5 , (%1,%4,2) \n\t"
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"movhpd %%xmm5 , (%1,%5,1) \n\t"
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"movsd %%xmm6 , (%2) \n\t"
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"movhpd %%xmm6 , (%2,%4,1) \n\t"
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"movsd %%xmm7 , (%2,%4,2) \n\t"
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"movhpd %%xmm7 , (%2,%5,1) \n\t"
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"leaq (%1,%4,8), %1 \n\t"
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"leaq (%2,%4,8), %2 \n\t"
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"subq $8, %0 \n\t"
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"jnz 1b \n\t"
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:
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"+r" (n), // 0
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"+r" (x), // 1
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"+r" (x1) // 2
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:
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"r" (alpha), // 3
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"r" (inc_x), // 4
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"r" (inc_x3) // 5
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: "cc", //"%0", "%1", "%2",
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"%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7",
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
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"memory"
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);
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}
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i=0,j=0;
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if ( inc_x != 1 )
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{
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if ( da == 0.0 )
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{
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BLASLONG n1 = n & -2;
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while(j < n1)
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{
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x[i]=0.0;
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x[i+inc_x]=0.0;
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i += 2*inc_x ;
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j+=2;
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}
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while(j < n)
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{
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x[i]=0.0;
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i += inc_x ;
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j++;
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}
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}
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else
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{
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BLASLONG n1 = n & -8;
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if ( n1 > 0 )
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{
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dscal_kernel_inc_8(n1, &da, x, inc_x);
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i = n1 * inc_x;
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j = n1;
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}
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while(j < n)
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{
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x[i] *= da;
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i += inc_x ;
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j++;
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}
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}
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return(0);
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}
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BLASLONG n1 = n & -8;
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if ( n1 > 0 )
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{
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if ( da == 0.0 )
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dscal_kernel_8_zero(n1 , &da , x);
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else
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dscal_kernel_8(n1 , &da , x);
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}
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if ( da == 0.0 )
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{
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for ( i=n1 ; i<n; i++ )
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{
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x[i] = 0.0;
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}
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}
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else
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{
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for ( i=n1 ; i<n; i++ )
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{
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x[i] *= da;
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}
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}
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return(0);
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}
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