diff options
Diffstat (limited to 'c_emulator/riscv_sim.c')
-rw-r--r-- | c_emulator/riscv_sim.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/c_emulator/riscv_sim.c b/c_emulator/riscv_sim.c index 9934613..9dec838 100644 --- a/c_emulator/riscv_sim.c +++ b/c_emulator/riscv_sim.c @@ -91,6 +91,7 @@ void set_config_print(char *var, bool val) { struct timeval init_start, init_end, run_end; int total_insns = 0; +int insn_limit = 0; static struct option options[] = { {"enable-dirty-update", no_argument, 0, 'd'}, @@ -111,6 +112,7 @@ static struct option options[] = { {"help", no_argument, 0, 'h'}, {"trace", optional_argument, 0, 'v'}, {"no-trace", optional_argument, 0, 'V'}, + {"inst-limit", required_argument, 0, 'l'}, {0, 0, 0, 0} }; @@ -194,7 +196,7 @@ char *process_args(int argc, char **argv) int c, idx = 1; uint64_t ram_size = 0; while(true) { - c = getopt_long(argc, argv, "admCIispz:b:t:v:hr:T:V::v::", options, &idx); + c = getopt_long(argc, argv, "admCIispz:b:t:v:hr:T:V::v::l:", options, &idx); if (c == -1) break; switch (c) { case 'a': @@ -269,6 +271,9 @@ char *process_args(int argc, char **argv) case 'v': set_config_print(optarg, true); break; + case 'l': + insn_limit = atoi(optarg); + break; case '?': print_usage(argv[0], 1); break; @@ -655,7 +660,13 @@ void run_sail(void) bool need_instr = true; #endif - while (!zhtif_done) { + struct timeval interval_start; + if (gettimeofday(&interval_start, NULL) < 0) { + fprintf(stderr, "Cannot gettimeofday: %s\n", strerror(errno)); + exit(1); + } + + while (!zhtif_done && (insn_limit == 0 || total_insns < insn_limit)) { #ifdef RVFI_DII if (rvfi_dii) { if (need_instr) { @@ -717,6 +728,15 @@ void run_sail(void) total_insns++; } + if (do_show_times && (total_insns & 0xfffff) == 0) { + uint64_t start_us = 1000000 * ((uint64_t) interval_start.tv_sec) + ((uint64_t)interval_start.tv_usec); + if (gettimeofday(&interval_start, NULL) < 0) { + fprintf(stderr, "Cannot gettimeofday: %s\n", strerror(errno)); + exit(1); + } + uint64_t end_us = 1000000 * ((uint64_t) interval_start.tv_sec) + ((uint64_t)interval_start.tv_usec); + fprintf(stdout, "kips: %" PRIu64 "\n", ((uint64_t)1000) * 0x100000 / (end_us - start_us)); + } #ifdef ENABLE_SPIKE { /* run a Spike step */ tv_step(s); |