| Bill Yi | 4e213d5 | 2015-06-23 13:53:11 -0700 | [diff] [blame] | 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 | } |