#include <memory>
#include "processor.h"
#include "mmu.h"
+#include "devices.h"
class htif_isasim_t;
class sim_t
{
public:
- sim_t(size_t _nprocs, size_t mem_mb, const std::vector<std::string>& htif_args);
+ sim_t(const char* isa, size_t _nprocs, size_t mem_mb,
+ const std::vector<std::string>& htif_args);
~sim_t();
// run the simulation to completion
- void run();
+ int run();
bool running();
void stop();
- void set_debug(bool value) { debug = value; }
-
- // deliver an IPI to a specific processor
- void send_ipi(reg_t who);
+ void set_debug(bool value);
+ void set_log(bool value);
+ void set_histogram(bool value);
+ void set_procs_debug(bool value);
+ htif_isasim_t* get_htif() { return htif.get(); }
// returns the number of processors in this simulator
size_t num_cores() { return procs.size(); }
- processor_t* get_core(size_t i) { return procs[i]; }
+ processor_t* get_core(size_t i) { return procs.at(i); }
// read one of the system control registers
reg_t get_scr(int which);
private:
- std::auto_ptr<htif_isasim_t> htif;
+ std::unique_ptr<htif_isasim_t> htif;
char* mem; // main memory
size_t memsz; // memory size in bytes
mmu_t* debug_mmu; // debug port into main memory
std::vector<processor_t*> procs;
+ std::unique_ptr<rom_device_t> config_string;
+ std::unique_ptr<rtc_t> rtc;
+ reg_t config_string_addr;
+ bus_t bus;
- void step(size_t n, bool noisy); // step through simulation
+ processor_t* get_core(const std::string& i);
+ void step(size_t n); // step through simulation
static const size_t INTERLEAVE = 5000;
+ static const size_t INSNS_PER_RTC_TICK = 100; // 10 MHz clock for 1 BIPS core
size_t current_step;
size_t current_proc;
bool debug;
+ bool log;
+ bool histogram_enabled; // provide a histogram of PCs
+
+ // memory-mapped I/O routines
+ bool mmio_load(reg_t addr, size_t len, uint8_t* bytes);
+ bool mmio_store(reg_t addr, size_t len, const uint8_t* bytes);
+ void make_config_string();
// presents a prompt for introspection into the simulation
void interactive();
// functions that help implement interactive()
+ void interactive_help(const std::string& cmd, const std::vector<std::string>& args);
void interactive_quit(const std::string& cmd, const std::vector<std::string>& args);
void interactive_run(const std::string& cmd, const std::vector<std::string>& args, bool noisy);
void interactive_run_noisy(const std::string& cmd, const std::vector<std::string>& args);
void interactive_reg(const std::string& cmd, const std::vector<std::string>& args);
void interactive_fregs(const std::string& cmd, const std::vector<std::string>& args);
void interactive_fregd(const std::string& cmd, const std::vector<std::string>& args);
+ void interactive_pc(const std::string& cmd, const std::vector<std::string>& args);
void interactive_mem(const std::string& cmd, const std::vector<std::string>& args);
void interactive_str(const std::string& cmd, const std::vector<std::string>& args);
void interactive_until(const std::string& cmd, const std::vector<std::string>& args);
reg_t get_tohost(const std::vector<std::string>& args);
friend class htif_isasim_t;
+ friend class processor_t;
+ friend class mmu_t;
};
extern volatile bool ctrlc_pressed;