added o1 to Makefile, changed float to int in daxpy

aufgaben/blatt02/exec/Makefile

@@ -2,5 +2,8 @@
 all:
 	arm-linux-gnueabihf-gcc -static -O3 daxpy.c -o daxpy
 
+o1:
+	arm-linux-gnueabihf-gcc -static -O1 daxpy.c -o daxpy	
+
 clean:
-	rm daxpy
+	rm daxpy daxpy.s

aufgaben/blatt02/exec/daxpy.c

-#include<stdio.h>
-#define N 8  // size of vector
-#define R 10 // number of repetitions
+/* #include<stdio.h> */
+#define N 1000 // size of vector
+#define R 1 // number of repetitions
 
 
 // daxpy: Y = aX + Y (n size vector, a constant, X,Y vectors)
-void daxpy(double* x, double* y, double a, int n)
+void daxpy(int* x, int* y, int a, int n)
 {
   int i;
   for (i = 0; i < n; i++) {
@@ -13,32 +13,32 @@ void daxpy(double* x, double* y, double a, int n)
 }
 
 // pretty print vector
-void print_vector(double* vec, int n)
-{
-  int i;
-  for (i=0; i<n-1; i++) {
-    printf("%f,\t",vec[i]);
-  }
-  printf("%f",vec[n-1]);
-  printf("\n");
-}
+/* void print_vector(double* vec, int n) */
+/* { */
+/*   int i; */
+/*   for (i=0; i<n-1; i++) { */
+/*     printf("%f,\t",vec[i]); */
+/*   } */
+/*   printf("%f",vec[n-1]); */
+/*   printf("\n"); */
+/* } */
 
 void main()
 {
-  static double x[N], y[N];
-  double a = 5.5;
+  static int x[N], y[N];
+  int a = 5;
   int i;
   
   for (i = 0; i<N; i++) {
-    x[i] = 7.833667;
+    x[i] = 7+i;
     y[i] = 0;
   }
 
-  print_vector(y, N);
+  /* print_vector(y, N); */
 
   for (i = 0; i<R; i++) {
     daxpy(x,y,a,N);
   }
 
-  print_vector(y,N);
+  /* print_vector(y,N); */
 }

aufgaben/blatt02/exec/daxpy_float.c

+/* #include<stdio.h> */
+#define N 1000 // size of vector
+#define R 1 // number of repetitions
+
+
+// daxpy: Y = aX + Y (n size vector, a constant, X,Y vectors)
+void daxpy(double* x, double* y, double a, int n)
+{
+  int i;
+  for (i = 0; i < n; i++) {
+    y[i] = a * x[i] + y[i];
+  }
+}
+
+// pretty print vector
+/* void print_vector(double* vec, int n) */
+/* { */
+/*   int i; */
+/*   for (i=0; i<n-1; i++) { */
+/*     printf("%f,\t",vec[i]); */
+/*   } */
+/*   printf("%f",vec[n-1]); */
+/*   printf("\n"); */
+/* } */
+
+void main()
+{
+  static double x[N], y[N];
+  double a = 5.5;
+  int i;
+  
+  for (i = 0; i<N; i++) {
+    x[i] = 7.833667+i;
+    y[i] = 0;
+  }
+
+  /* print_vector(y, N); */
+
+  for (i = 0; i<R; i++) {
+    daxpy(x,y,a,N);
+  }
+
+  /* print_vector(y,N); */
+}