verilator suppor for opae (partial)

driver/rtlsim/simulator.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#include "Vvortex_afu_sim.h"
+#include "Vvortex_afu_sim__Syms.h"
+#include "verilated.h"
+
+#ifdef VCD_OUTPUT
+#include <verilated_vcd_c.h>
+#endif
+
+#include <VX_config.h>
+#include "ram.h"
+
+#include <ostream>
+#include <vector>
+
+#define ENABLE_DRAM_STALLS
+#define DRAM_LATENCY 100
+#define DRAM_RQ_SIZE 16
+#define DRAM_STALLS_MODULO 16
+
+typedef struct {
+  int cycles_left;  
+  uint8_t *data;
+  unsigned tag;
+} dram_req_t;
+
+class Simulator {
+public:
+  
+  Simulator();
+  virtual ~Simulator();
+
+  void reset();
+  
+  void step();  
+
+  int mmio_read(uint64_t addr, uint64_t* value);
+
+  int mmio_write(uint64_t addr, uint64_t value);
+  
+private:  
+
+  void eval(); 
+
+  void avs_driver();
+
+  void ccip_driver(); 
+  
+  std::vector<dram_req_t> dram_rsp_vec_;
+
+  RAM ram_;
+  Vvortex_afu_sim *vortex_;
+  
+
+#ifdef VCD_OUTPUT
+  VerilatedVcdC *trace_;
+#endif
+};