/*
* run_tty_sim - Run the simulator in TTY mode
*/
static void run_tty_sim()
{
int icount = 0;
exc_t status = EXC_NONE;
cc_t result_cc = 0;
int byte_cnt = 0;
mem_t mem0, reg0;
state_ptr isa_state = NULL;
/* In TTY mode, the default object file comes from stdin */
if (!object_file) {
object_file = stdin;
}
/* Initializations */
if (verbosity >= 2)
sim_set_dumpfile(stdout);
sim_init();
/* Emit simulator name */
printf("%s\n", simname);
byte_cnt = load_mem(mem, object_file, 1);
if (byte_cnt == 0) {
fprintf(stderr, "No lines of code found\n");
exit(1);
} else if (verbosity >= 2) {
printf("%d bytes of code read\n", byte_cnt);
}
fclose(object_file);
if (do_check) {
isa_state = new_state(0);
free_mem(isa_state->r);
free_mem(isa_state->m);
isa_state->m = copy_mem(mem);
isa_state->r = copy_mem(reg);
isa_state->cc = cc;
}
mem0 = copy_mem(mem);
reg0 = copy_mem(reg);
icount = sim_run(instr_limit, &status, &result_cc);
if (verbosity > 0) {
printf("%d instructions executed\n", icount);
printf("Exception status = %s\n", exc_name(status));
printf("Condition Codes: %s\n", cc_name(result_cc));
printf("Changed Register State:\n");
diff_reg(reg0, reg, stdout);
printf("Changed Memory State:\n");
diff_mem(mem0, mem, stdout);
}
if (do_check) {
exc_t e = EXC_NONE;
int step;
bool_t match = TRUE;
for (step = 0; step < instr_limit && e == EXC_NONE; step++) {
e = step_state(isa_state, stdout);
}
if (diff_reg(isa_state->r, reg, NULL)) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Register != Pipeline Register File\n");
diff_reg(isa_state->r, reg, stdout);
}
}
if (diff_mem(isa_state->m, mem, NULL)) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Memory != Pipeline Memory\n");
diff_mem(isa_state->m, mem, stdout);
}
}
if (isa_state->cc != result_cc) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Cond. Codes (%s) != Pipeline Cond. Codes (%s)\n",
cc_name(isa_state->cc), cc_name(result_cc));
}
}
if (match) {
printf("ISA Check Succeeds\n");
} else {
printf("ISA Check Fails\n");
}
}
}
/*
* run_tty_sim - Run the simulator in TTY mode
*/
static void run_tty_sim()
{
int icount = 0;
byte_t run_status = STAT_AOK;
cc_t result_cc = 0;
int byte_cnt = 0;
mem_t mem0, reg0;
state_ptr isa_state = NULL;
/* In TTY mode, the default object file comes from stdin */
if (!object_file) {
object_file = stdin;
}
if (verbosity >= 2)
sim_set_dumpfile(stdout);
sim_init();
/* Emit simulator name */
if (verbosity >= 2)
printf("%s\n", simname);
byte_cnt = load_mem(mem, object_file, 1, START_PLACE);
if (byte_cnt == 0) {
fprintf(stderr, "No lines of code found\n");
exit(1);
} else if (verbosity >= 2) {
printf("%d bytes of code read\n", byte_cnt);
}
fclose(object_file);
if (do_check) {
isa_state = new_state(0);
free_reg(isa_state->r);
free_mem(isa_state->m);
isa_state->m = copy_mem(mem);
isa_state->r = copy_reg(reg);
isa_state->cc = cc;
}
if(verbosity > 0){
mem0 = copy_mem(mem);
reg0 = copy_reg(reg);
}
icount = sim_run_pipe(instr_limit, 5*instr_limit, &run_status, &result_cc);
if (verbosity > 0) {
printf("%d instructions executed\n", icount);
printf("Status = %s\n", stat_name(run_status));
printf("Condition Codes: %s\n", cc_name(result_cc));
printf("Changed Register State:\n");
diff_reg(reg0, reg, stdout);
printf("Changed Memory State:\n");
diff_mem(mem0, mem, stdout);
}
if (do_check) {
exit(0);
byte_t e = STAT_AOK;
int step;
bool_t match = TRUE;
for (step = 0; step < instr_limit && e == STAT_AOK; step++) {
e = step_state(isa_state, stdout);
}
if (diff_reg(isa_state->r, reg, NULL)) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Register != Pipeline Register File\n");
diff_reg(isa_state->r, reg, stdout);
}
}
if (diff_mem(isa_state->m, mem, NULL)) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Memory != Pipeline Memory\n");
diff_mem(isa_state->m, mem, stdout);
}
}
if (isa_state->cc != result_cc) {
match = FALSE;
if (verbosity > 0) {
printf("ISA Cond. Codes (%s) != Pipeline Cond. Codes (%s)\n",
cc_name(isa_state->cc), cc_name(result_cc));
}
}
if (match) {
printf("ISA Check Succeeds\n");
} else {
printf("ISA Check Fails\n");
}
}
/* Emit CPI statistics */
{
double cpi = instructions > 0 ? (double) cycles/instructions : 1.0;
printf("%d CPI: %d cycles/%d instructions = %.2f\n", PSIM_ID,
cycles, instructions, cpi);
}
}
