Apply my old patch from 2012 for x86_64

1 files changed, 27 insertions, 0 deletions

diff --git a/cpu_mode_x86_64.c b/cpu_mode_x86_64.c
new file mode 100644
index 0000000..758096a
--- /dev/null
+++ b/cpu_mode_x86_64.c
@@ -0,0 +1,27 @@
+/* Determine CPU support for SIMD
+ * Copyright 2004 Phil Karn, KA9Q
+ *
+ * Modified in 2012 by Matthias P. Braendli, HB9EGM
+ */
+#include <stdio.h>
+#include "fec.h"
+
+/* Various SIMD instruction set names */
+char *Cpu_modes[] = {"Unknown","Portable C","x86 Multi Media Extensions (MMX)",
+		   "x86 Streaming SIMD Extensions (SSE)",
+		   "x86 Streaming SIMD Extensions 2 (SSE2)",
+		   "PowerPC G4/G5 Altivec/Velocity Engine"};
+
+enum cpu_mode Cpu_mode;
+
+void find_cpu_mode(void){
+
+  int f;
+  if(Cpu_mode != UNKNOWN)
+    return;
+
+  /* According to the wikipedia entry x86-64, all x86-64 processors have SSE2 */
+  /* The same assumption is also in other source files ! */
+  Cpu_mode = SSE2;
+  fprintf(stderr,"CPU: x86-64, using portable C implementation\n");
+}