rebase master update

hw/unit_tests/generic_queue/vl_simulator.h

@@ -0,0 +1,81 @@
+#pragma once
+
+#include <array>
+#include <cstdint>
+#include "verilated.h"
+
+#ifdef VM_TRACE
+#include <verilated_vcd_c.h>	// Trace file format header
+#endif
+
+template <typename T>
+class vl_simulator {
+private:
+
+  T top_;
+#ifdef VM_TRACE
+  VerilatedVcdC tfp_;
+#endif
+
+public:
+
+  vl_simulator() {
+    top_.clk = 0;
+    top_.reset = 0;
+  #ifdef VM_TRACE
+    Verilated::traceEverOn(true);
+    top_.trace(&tfp_, 99);
+    tfp_.open("trace.vcd");
+  #endif
+  }
+
+  ~vl_simulator() {
+  #ifdef VM_TRACE
+    tfp_.close();
+  #endif
+    top_.final();
+  }
+
+  uint64_t reset(uint64_t ticks) {
+    top_.reset = 1;
+    ticks = this->step(ticks, 2);
+    top_.reset = 0;
+    return ticks;
+  }
+
+  uint64_t step(uint64_t ticks, uint32_t count = 1) {
+    while (count--) {
+      top_.eval();
+    #ifdef VM_TRACE
+      tfp_.dump(ticks);
+    #endif
+      top_.clk = !top_.clk;
+      ++ticks;
+    }
+    return ticks;
+  }
+
+  T* operator->() {
+    return &top_;
+  }
+};
+
+template <typename... Args>
+void vl_setw(uint32_t* sig, Args&&... args) {
+  std::array<uint32_t, sizeof... (Args)> arr{static_cast<uint32_t>(std::forward<Args>(args))...};
+  for (size_t i = 0; i < sizeof... (Args); ++i) {
+    sig[i] = arr[i];
+  }
+}
+
+template <typename... Args>
+int  vl_cmpw(const uint32_t* sig, Args&&... args) {
+  std::array<uint32_t, sizeof... (Args)> arr{static_cast<uint32_t>(std::forward<Args>(args))...};
+  for (size_t i = 0; i < sizeof... (Args); ++i) {
+    if (sig[i] < arr[i])
+      return -1;
+    if (sig[i] > arr[i])
+      return 1;
+  }
+  return 0;
+}