1 files changed, 108 insertions, 0 deletions
diff --git a/util/systemc/systemc_within_gem5/systemc_sc_main/sc_main.cc b/util/systemc/systemc_within_gem5/systemc_sc_main/sc_main.cc
new file mode 100644
index 000000000..13da38cd5
--- /dev/null
+++ b/util/systemc/systemc_within_gem5/systemc_sc_main/sc_main.cc
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include <vector>
+
+#include "base/trace.hh"
+
+#include "systemc/ext/systemc"
+
+class Printer : public sc_core::sc_module
+{
+  public:
+    sc_core::sc_in<const char *> input;
+
+    SC_CTOR(Printer)
+    {
+        SC_THREAD(print);
+    }
+
+    void
+    print()
+    {
+        int i = 0;
+        while (true) {
+            wait(input.value_changed_event());
+            DPRINTFN("Word %d: %s\n", i++, input.read());
+        }
+    }
+};
+
+class Feeder : public sc_core::sc_module
+{
+  public:
+    sc_core::sc_in<bool> clk;
+    sc_core::sc_out<const char *> output;
+
+    std::vector<const char *> strings;
+
+    SC_HAS_PROCESS(Feeder);
+    Feeder(sc_core::sc_module_name, std::vector<const char *> _strings) :
+        strings(_strings)
+    {
+        SC_THREAD(feed);
+        sensitive << clk.pos();
+    }
+
+    void
+    feed()
+    {
+        int i = 0;
+        while (true) {
+            wait();
+            if (i >= strings.size())
+                sc_core::sc_stop();
+            else
+                output = strings[i];
+            i++;
+        }
+    }
+};
+
+int
+sc_main(int argc, char *argv[])
+{
+    std::vector<const char *> strings;
+    for (int i = 0; i < argc; i++)
+        strings.push_back(argv[i]);
+
+    sc_core::sc_clock clk;
+    sc_core::sc_buffer<const char *> buf;
+
+    Feeder feeder("feeder", strings);
+    feeder.clk(clk);
+    feeder.output(buf);
+
+    Printer printer("printer");
+    printer.input(buf);
+
+    sc_core::sc_start();
+
+    return 0;
+}