1 /* Compute the sum of the squares of a vector of signed shorts 2 3 * Copyright 2004 Phil Karn, KA9Q 4 * May be used under the terms of the GNU Lesser General Public License (LGPL) 5 */ 6 7 #include <stdlib.h> 8 #include "fec.h" 9 10 unsigned long long sumsq_port(signed short *,int); 11 12 #ifdef __i386__ 13 unsigned long long sumsq_mmx(signed short *,int); 14 unsigned long long sumsq_sse(signed short *,int); 15 unsigned long long sumsq_sse2(signed short *,int); 16 #endif 17 18 #ifdef __VEC__ 19 unsigned long long sumsq_av(signed short *,int); 20 #endif 21 22 unsigned long long sumsq(signed short *in,int cnt){ 23 switch(Cpu_mode){ 24 case PORT: 25 default: 26 return sumsq_port(in,cnt); 27 #ifdef __i386__ 28 case SSE: 29 case MMX: 30 return sumsq_mmx(in,cnt); 31 case SSE2: 32 return sumsq_sse2(in,cnt); 33 #endif 34 35 #ifdef __VEC__ 36 case ALTIVEC: 37 return sumsq_av(in,cnt); 38 #endif 39 } 40 } 41
