hls vector add co-simulation

hls/lab1/exercise_0.hpp

@@ -1,11 +0,0 @@
-#ifndef VADD_HPP
-#define VADD_HPP
-
-	#include <stdio.h>
-
-	//#define TEST_DATA_SIZE 4194304 // 2^22
-	#define TEST_DATA_SIZE 12
-
-	void vadd(int *a, int *b, int *c, const int len);
-
-#endif

hls/lab1/exercise_0/main_tb.cpp

@@ -0,0 +1,41 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "vadd.h"
+
+int main () {
+
+	int n = max_elem;
+
+	int * a = (int *) malloc(n*sizeof(int));
+	int * b = (int *) malloc(n*sizeof(int));
+	int * c = (int *) malloc(n*sizeof(int));
+
+	for (int i = 0; i < n; i++) {
+		a[i] =   i;
+		b[i] = 2*i;
+	}
+
+	sum (a, b, c, n);
+
+	FILE *fp = fopen("ground_truth.txt", "r");
+
+	for (int i = 0; i < n; i++) {
+
+		int buff;
+
+		fscanf(fp, "%d", &buff);
+
+		if (buff != c[i]) {
+			return 1;
+		}
+	}
+
+	fclose(fp);
+
+	free(a);
+	free(b);
+	free(c);
+
+	return 0;
+}

hls/lab1/exercise_0/vadd.cpp

@@ -0,0 +1,15 @@
+#include "vadd.h"
+
+void sum (int *a, int *b, int *c, int n) {
+
+#pragma HLS INTERFACE s_axilite port=n bundle=regfile
+#pragma HLS_INTERFACE s_axilite port=return bundle=regfile
+#pragma HLS INTERFACE m_axi port=a offset=slave depth=max_elem bundle=a_mem
+#pragma HLS INTERFACE m_axi port=b offset=slave depth=max_elem bundle=bc_mem
+#pragma HLS INTERFACE m_axi port=c offset=slave depth=max_elem bundle=bc_mem
+
+	for (int i = 0; i < n; i++) {
+	#pragma HLS LOOP_TRIPCOUNT min=max_elem max=max_elem
+		c[i] = a[i] + b[i];
+	}
+}

hls/lab1/exercise_0/vadd.h

@@ -0,0 +1,5 @@
+//const int max_elem = 4194304;	// for testing
+const int max_elem = 1024;		// for co-simulation
+
+
+void sum (int *a, int *b, int *c, int n);

hls/lab1/exercise_0_solution.cpp

@@ -1,17 +0,0 @@
-#include "exercise_0.hpp"
-
-const unsigned int c_dim = TEST_DATA_SIZE;
-
-void vadd(int *a, int *b, int *c, const int len)
-{
-    #pragma HLS INTERFACE m_axi port=a offset=slave depth=c_dim bundle=mem
-    #pragma HLS INTERFACE m_axi port=b offset=slave depth=c_dim bundle=mem
-    #pragma HLS INTERFACE m_axi port=c offset=slave depth=c_dim bundle=mem
-    #pragma HLS INTERFACE s_axilite port=len bundle=params
-    #pragma HLS INTERFACE s_axilite port=return bundle=params
-
-    loop: for(int i = 0; i < len; i++) {
-	    #pragma HLS LOOP_TRIPCOUNT min=c_dim max=c_dim
-        c[i] = a[i] + b[i];
-    }
-}

hls/lab1/exercise_0_testbench.cpp

@@ -1,28 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "exercise_0.hpp"
-
-int main(int argc, char ** argv) {
-
-	int * a = (int *)malloc(TEST_DATA_SIZE*sizeof(int));
-	int * b = (int *)malloc(TEST_DATA_SIZE*sizeof(int));
-	int * c = (int *)malloc(TEST_DATA_SIZE*sizeof(int));
-
-	for(int i = 0; i < TEST_DATA_SIZE; i++) {
-		a[i] = i*i;
-		b[i] = i;
-	}
-
-	vadd(a, b, c, TEST_DATA_SIZE);
-
-	for(int i = 0; i < TEST_DATA_SIZE; i++) {
-		printf("%d\n", c[i]);
-	}
-
-	free(a);
-	free(b);
-	free(c);
-
-	return 0;
-}