65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
/* Instruction set simulator for Y86-64 Architecture */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "isa.h"
|
|
|
|
/* YIS never runs in GUI mode */
|
|
int gui_mode = 0;
|
|
|
|
void usage(char *pname)
|
|
{
|
|
printf("Usage: %s code_file [max_steps]\n", pname);
|
|
exit(0);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
FILE *code_file;
|
|
int max_steps = 10000;
|
|
|
|
state_ptr s = new_state(MEM_SIZE);
|
|
mem_t saver = copy_reg(s->r);
|
|
mem_t savem;
|
|
int step = 0;
|
|
|
|
stat_t e = STAT_AOK;
|
|
|
|
if (argc < 2 || argc > 3)
|
|
usage(argv[0]);
|
|
code_file = fopen(argv[1], "r");
|
|
if (!code_file) {
|
|
fprintf(stderr, "Can't open code file '%s'\n", argv[1]);
|
|
exit(1);
|
|
}
|
|
|
|
if (!load_mem(s->m, code_file, 1)) {
|
|
printf("Exiting\n");
|
|
return 1;
|
|
}
|
|
|
|
savem = copy_mem(s->m);
|
|
|
|
if (argc > 2)
|
|
max_steps = atoi(argv[2]);
|
|
|
|
for (step = 0; step < max_steps && e == STAT_AOK; step++)
|
|
e = step_state(s, stdout);
|
|
|
|
printf("Stopped in %d steps at PC = 0x%llx. Status '%s', CC %s\n",
|
|
step, s->pc, stat_name(e), cc_name(s->cc));
|
|
|
|
printf("Changes to registers:\n");
|
|
diff_reg(saver, s->r, stdout);
|
|
|
|
printf("\nChanges to memory:\n");
|
|
diff_mem(savem, s->m, stdout);
|
|
|
|
free_state(s);
|
|
free_reg(saver);
|
|
free_mem(savem);
|
|
|
|
return 0;
|
|
}
|