From 503957e2883e754fc8424c420c3d9838bd639ed3 Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Sun, 18 Sep 2022 17:16:46 -0600
Subject: Fix memory simulation

---
 tb/top/conspiracion.cpp | 66 ++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 55 insertions(+), 11 deletions(-)

(limited to 'tb/top/conspiracion.cpp')

diff --git a/tb/top/conspiracion.cpp b/tb/top/conspiracion.cpp
index b8f803c..bce5546 100644
--- a/tb/top/conspiracion.cpp
+++ b/tb/top/conspiracion.cpp
@@ -1,11 +1,14 @@
-#include <verilated.h>
 #include <cstdio>
 
+#include <verilated.h>
+#include <verilated_vcd_c.h>
+
 #include "Vconspiracion.h"
 #include "Vconspiracion_conspiracion.h"
 #include "Vconspiracion_platform.h"
 
 #include "../avalon.hpp"
+#include "../mem.hpp"
 
 int main(int argc, char **argv)
 {
@@ -14,18 +17,49 @@ int main(int argc, char **argv)
     Verilated::commandArgs(argc, argv);
 
 	Vconspiracion top;
+
+#ifdef TRACE
+	Verilated::traceEverOn(true);
+	VerilatedVcdC trace;
+
+	top.trace(&trace, 0);
+	trace.open("trace.vcd");
+#endif
+
 	interconnect<Vconspiracion_platform> avl(*top.conspiracion->plat);
+	mem hps_ddr3(0x0000'0000, 512 << 20);
+
+	avl.attach(hps_ddr3);
 
 	int time = 0;
+	top.clk_clk = 1;
+
 	auto tick = [&]()
 	{
-		top.clk_clk = 0;
-		top.eval();
-		top.clk_clk = 1;
+		top.clk_clk = !top.clk_clk;
 		top.eval();
-		avl.tick();
+		avl.tick(top.clk_clk);
+#ifdef TRACE
+		trace.dump(time++);
+#endif
+	};
+
+	auto cycle = [&]()
+	{
+		tick();
+		tick();
+		std::printf("[%02d] out=0x%02x, done=%d\n", time, top.out, top.done);
+	};
 
-		std::printf("[%02d] out=0x%02x, done=%d\n", ++time, top.out, top.done);
+	auto io = [&]()
+	{
+		top.io = 0;
+		cycle();
+		top.io = 1;
+		for(int i = 0; i < 4; ++i)
+		{
+			cycle();
+		}
 	};
 
 	top.dir = 1;
@@ -36,14 +70,24 @@ int main(int argc, char **argv)
 	for(int i = 0; i < 5; ++i)
 	{
 		top.add = 0;
-		tick();
+		cycle();
 		top.add = 1;
-		tick();
+		cycle();
 	}
 
-	top.io = 0;
-	tick();
-	tick();
+	io();
+
+	top.clr = 0;
+	cycle();
+	top.clr = 1;
+	cycle();
+
+	top.dir = 0;
+	io();
+
+#ifdef TRACE
+	trace.close();
+#endif
 
     top.final();
 }
-- 
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