static void statement()
{
int index = iselect;
int index2;
instruction_display(apc - 1, 1, flag['l'-'a']);
printf("%6.6x %8.8x\n", psr, apc - memory.array);
instruction_display(apc, 6, flag['l'-'a']);
while (index < (iselect | 24))
{
print_register_row(index);
putchar('\n');
index += 8;
}
index = sp;
printf("[%6.6x]->", index);
index2 = 7;
while (index2--)
{
if (index > 255) break;
printf(" %6.6x", _register[index++]);
}
printf("\n ");
index2 = 8;
while (index2--)
{
if (index > 255) break;
printf(" %6.6x", _register[index++]);
}
printf("\n ");
index2 = 8;
while (index2--)
{
if (index > 255) break;
printf(" %6.6x", _register[index++]);
}
putchar('\n');
}
int main(int argc, char* argv[]) {
int status = 0;
/** Part 0: argument setting **/
glb_argc = argc;
glb_argv = argv;
argument_setting();
/** Part 1: Initialization **/
initialization();
/** Part 2: Read the data image into the D-disk. **/
read_Dimage_into_Ddisk();
/** Part 3: Read the instruction image into the I-disk. **/
read_Iimage_into_Idisk();
/** Part 4: Execute the instructions. **/
/* open the files */
fout = fopen("snapshot.rpt", "w");
//ferr = fopen("error_dump.rpt", "w");
file_open_failure_process( fout, "snapshot.rpt" );
//file_open_failure_process( ferr, "error_dump.rpt" );
/* start executing */
printf("#5 The following is the tracing of the execution.\n\n");
cycle = 0;
while(1)
{
/* PC validity check and instruction fetching setting */
if( pc<0 || pc>1023 || pc%4!=0 )
testcase_invalid_process("The program counter is not on a valid position.");
/* register data display */
register_data_display(cycle);
cycle++;
/* cycle overflows interruption */
if( cycle>500002 )
testcase_invalid_process("The process has run for too many cycles.");
/* find instruction */
find_instruction();
/* register index setting */
instruction_decomposition(fetched_instruction);
/* instruction display */
instruction_display();
/* mapping from instruction bit to real operation */
status = choose_instruction_to_execute(fetched_instruction);
/* avoid write 0 error */
reg[0] = 0;
/*error handling */
if( status==1 )
break;
/*getchar();*/
}
hit_miss_situation_write_to_file();
fclose( fout );
//fclose( ferr );
return 0;
}
