From de4d7401873cfe56ed1387baa4d0cc6706ba21c4 Mon Sep 17 00:00:00 2001
From: Eyck Jentzsch <eyck@minres.com>
Date: Sun, 16 Mar 2025 18:50:10 +0100
Subject: [PATCH] updates scc and adds simspeed test

---
 CMakePresets.json              |  9 ++++++---
 scc                            |  2 +-
 tests/CMakeLists.txt           |  1 +
 tests/sim_speed/CMakeLists.txt |  3 +++
 tests/sim_speed/sc_main.cpp    | 24 ++++++++++++++++++++++++
 5 files changed, 35 insertions(+), 4 deletions(-)
 create mode 100644 tests/sim_speed/CMakeLists.txt
 create mode 100644 tests/sim_speed/sc_main.cpp

diff --git a/CMakePresets.json b/CMakePresets.json
index 86840c3..774d9bb 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -15,7 +15,8 @@
                 "CMAKE_POLICY_DEFAULT_CMP0091": "NEW",
                 "CMAKE_BUILD_TYPE": "Debug",
                 "CMAKE_CXX_STANDARD": "17",
-                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake"
+                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake",
+                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
             }
         },
         {
@@ -24,7 +25,8 @@
                 "CMAKE_POLICY_DEFAULT_CMP0091": "NEW",
                 "CMAKE_BUILD_TYPE": "RelWithDebInfo",
                 "CMAKE_CXX_STANDARD": "17",
-                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake"
+                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake",
+                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
             }
         },
         {
@@ -33,7 +35,8 @@
                 "CMAKE_POLICY_DEFAULT_CMP0091": "NEW",
                 "CMAKE_BUILD_TYPE": "Release",
                 "CMAKE_CXX_STANDARD": "17",
-                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake"
+                "CMAKE_PROJECT_TOP_LEVEL_INCLUDES": "cmake-conan/conan_provider.cmake",
+                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
             }
         }
     ]
diff --git a/scc b/scc
index 414a772..a288c89 160000
--- a/scc
+++ b/scc
@@ -1 +1 @@
-Subproject commit 414a7724e2723acb6cd309ff2fb62a38eb1ab6e5
+Subproject commit a288c896f80f68edcde3b2f17fe49e0a31a3afbe
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 7004527..cf8aa2f 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -9,6 +9,7 @@ add_subdirectory(configuration)
 add_subdirectory(configurer)
 add_subdirectory(sc_fixed_tracing)
 add_subdirectory(cxs_tlm)
+add_subdirectory(sim_speed)
 if(FULL_TEST_SUITE)
 	add_subdirectory(sim_performance)
 endif()
diff --git a/tests/sim_speed/CMakeLists.txt b/tests/sim_speed/CMakeLists.txt
new file mode 100644
index 0000000..8516c5c
--- /dev/null
+++ b/tests/sim_speed/CMakeLists.txt
@@ -0,0 +1,3 @@
+project (sim_speed)
+add_executable(${PROJECT_NAME} sc_main.cpp)
+target_link_libraries (${PROJECT_NAME} LINK_PUBLIC scc-sysc)
diff --git a/tests/sim_speed/sc_main.cpp b/tests/sim_speed/sc_main.cpp
new file mode 100644
index 0000000..a9936b7
--- /dev/null
+++ b/tests/sim_speed/sc_main.cpp
@@ -0,0 +1,24 @@
+#include <chrono>
+#include <stdint.h>
+#include <systemc>
+
+using namespace sc_core;
+
+int sc_main(int argc, char* argv[]) {
+    const uint64_t NS_VAL = 100000000;
+
+    sc_clock clk("clk", 1, SC_NS);
+    sc_time run_time(NS_VAL, SC_NS);
+
+    auto start = std::chrono::high_resolution_clock::now();
+    sc_start(run_time);
+    auto end = std::chrono::high_resolution_clock::now();
+    auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
+
+    double simulated_cycles = (double)NS_VAL;
+    double real_us = duration.count();
+    double speed_Mhz = simulated_cycles / real_us;
+    std::cout << "Simulation speed: " << speed_Mhz << " MHz\n";
+
+    return 0;
+}