init commit

2026-06-22 11:39:50 +03:00
commit ba6f1bde22
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+/* Compute the sum of the squares of a vector of signed shorts
+
+ * Copyright 2004 Phil Karn, KA9Q
+ * May be used under the terms of the GNU Lesser General Public License (LGPL)
+ */
+
+#include <stdlib.h>
+#include "fec.h"
+
+unsigned long long sumsq_port(signed short *,int);
+
+#ifdef __i386__
+unsigned long long sumsq_mmx(signed short *,int);
+unsigned long long sumsq_sse(signed short *,int);
+unsigned long long sumsq_sse2(signed short *,int);
+#endif
+
+#ifdef __VEC__
+unsigned long long sumsq_av(signed short *,int);
+#endif
+
+unsigned long long sumsq(signed short *in,int cnt){
+  switch(Cpu_mode){
+  case PORT:
+  default:
+    return sumsq_port(in,cnt);
+#ifdef __i386__
+  case SSE:
+  case MMX:
+    return sumsq_mmx(in,cnt);
+  case SSE2:
+    return sumsq_sse2(in,cnt);
+#endif
+
+#ifdef __VEC__
+  case ALTIVEC:
+    return sumsq_av(in,cnt);
+#endif
+  }
+}