From 515ca52cc95470aee38d3badc91fa7f053938ab6 Mon Sep 17 00:00:00 2001
From: Gianluca Brilli <gianluca.brilli@unimore.it>
Date: Thu, 13 May 2021 22:03:14 +0200
Subject: [PATCH] HLS lab 1

---
 hls/lab1/exercise_0.hpp           | 11 +++++++++++
 hls/lab1/exercise_0_solution.cpp  |  8 ++++----
 hls/lab1/exercise_0_testbench.cpp | 28 ++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+), 4 deletions(-)
 create mode 100644 hls/lab1/exercise_0.hpp
 create mode 100644 hls/lab1/exercise_0_testbench.cpp

diff --git a/hls/lab1/exercise_0.hpp b/hls/lab1/exercise_0.hpp
new file mode 100644
index 0000000..3ca2c2f
--- /dev/null
+++ b/hls/lab1/exercise_0.hpp
@@ -0,0 +1,11 @@
+#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
diff --git a/hls/lab1/exercise_0_solution.cpp b/hls/lab1/exercise_0_solution.cpp
index f1739ee..4eaebfc 100755
--- a/hls/lab1/exercise_0_solution.cpp
+++ b/hls/lab1/exercise_0_solution.cpp
@@ -1,12 +1,12 @@
-#define TEST_DATA_SIZE 4194304 // 2^22
+#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 bundle=mem
-    #pragma HLS INTERFACE m_axi port=b offset=slave bundle=mem
-    #pragma HLS INTERFACE m_axi port=c offset=slave bundle=mem
+    #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
 
diff --git a/hls/lab1/exercise_0_testbench.cpp b/hls/lab1/exercise_0_testbench.cpp
new file mode 100644
index 0000000..bcafd7b
--- /dev/null
+++ b/hls/lab1/exercise_0_testbench.cpp
@@ -0,0 +1,28 @@
+#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;
+}