6615ab007b131874c54981bed70ca21729130f9b
1 // See LICENSE for license details.
14 // this class encapsulates the processors and memory in a RISC-V machine.
18 sim_t(const char* isa
, size_t _nprocs
, size_t mem_mb
,
19 const std::vector
<std::string
>& htif_args
);
22 // run the simulation to completion
26 void set_debug(bool value
);
27 void set_histogram(bool value
);
28 void set_procs_debug(bool value
);
29 htif_isasim_t
* get_htif() { return htif
.get(); }
31 // deliver an IPI to a specific processor
32 void send_ipi(reg_t who
);
34 // returns the number of processors in this simulator
35 size_t num_cores() { return procs
.size(); }
36 processor_t
* get_core(size_t i
) { return procs
.at(i
); }
38 // read one of the system control registers
39 reg_t
get_scr(int which
);
42 std::unique_ptr
<htif_isasim_t
> htif
;
43 char* mem
; // main memory
44 size_t memsz
; // memory size in bytes
45 mmu_t
* debug_mmu
; // debug port into main memory
46 std::vector
<processor_t
*> procs
;
48 void step(size_t n
); // step through simulation
49 static const size_t INTERLEAVE
= 5000;
50 static const size_t INSNS_PER_RTC_TICK
= 100; // 10 MHz clock for 1 BIPS core
55 bool histogram_enabled
; // provide a histogram of PCs
57 // presents a prompt for introspection into the simulation
60 // functions that help implement interactive()
61 void interactive_quit(const std::string
& cmd
, const std::vector
<std::string
>& args
);
62 void interactive_run(const std::string
& cmd
, const std::vector
<std::string
>& args
, bool noisy
);
63 void interactive_run_noisy(const std::string
& cmd
, const std::vector
<std::string
>& args
);
64 void interactive_run_silent(const std::string
& cmd
, const std::vector
<std::string
>& args
);
65 void interactive_reg(const std::string
& cmd
, const std::vector
<std::string
>& args
);
66 void interactive_fregs(const std::string
& cmd
, const std::vector
<std::string
>& args
);
67 void interactive_fregd(const std::string
& cmd
, const std::vector
<std::string
>& args
);
68 void interactive_mem(const std::string
& cmd
, const std::vector
<std::string
>& args
);
69 void interactive_str(const std::string
& cmd
, const std::vector
<std::string
>& args
);
70 void interactive_until(const std::string
& cmd
, const std::vector
<std::string
>& args
);
71 reg_t
get_reg(const std::vector
<std::string
>& args
);
72 reg_t
get_freg(const std::vector
<std::string
>& args
);
73 reg_t
get_mem(const std::vector
<std::string
>& args
);
74 reg_t
get_pc(const std::vector
<std::string
>& args
);
75 reg_t
get_tohost(const std::vector
<std::string
>& args
);
77 friend class htif_isasim_t
;
78 friend class processor_t
;
81 extern volatile bool ctrlc_pressed
;