void initialize_system ()
{
FILE *fconfig;
fconfig = fopen ("config.sys", "r");
fscanf (fconfig, "%d\n", &Observe);
fscanf (fconfig, "%d %d\n", &cpuQuantum, &idleQuantum);
fscanf (fconfig, "%d %d %d %d\n", &pageSize, &memSize, &swapSize, &OSmemSize);
fscanf (fconfig, "%d\n", &periodAgeScan);
fscanf (fconfig, "%d\n", &spoolPsize);
fclose (fconfig);
OriginalPages= find_pages(memSize,pageSize);
OriginalPages_swapspace = find_pages(swapSize,pageSize);
rem_pages = OriginalPages;
rem_pages_swapspace = OriginalPages_swapspace;
#undef num_pages
#define num_pages OriginalPages;
OSpages= find_pages(OSmemSize,pageSize);
printf("OS Size is %d , OS pages are %d\n", OSmemSize, OSpages);
rem_pages= OriginalPages-OSpages;
idlePages= find_pages(3, pageSize);
/*printf("Idle Size is 256, Idle pages are %d, rem pages are %d \n", idlePages, rem_pages);
rem_pages = rem_pages-idlePages;*/
printf("remaining pages are %d\n", rem_pages);
#undef num_pages
#define num_pages rem_pages;
printf("Number of frames in Main memory is %d remaininng pages are %d\n", OriginalPages, rem_pages);
initialize_cpu ();
printf("initialized CPU \n");
initialize_swap_freelist(rem_pages_swapspace, OriginalPages_swapspace);
printf("initialized Swap Space \n");
initialize_freelist(rem_pages, OriginalPages);
printf("initialized Main Memory \n");
initialize_timer ();
printf("initialized timer \n");
initialize_memory ();
printf("initialized memory \n");
initialize_process ();
printf("initialized process \n");
// initialize_memory ();
// printf("initialized memory \n");
}
// sudo apt-get install libncurses5-dev
// http://stackoverflow.com/questions/4025891/create-a-function-to-check-for-key-press-in-unix-using-ncurses
// https://viget.com/extend/game-programming-in-c-with-the-ncurses-library
int main(int argc, char **argv) {
char *debug_filename = NULL;
char *input_filename = NULL;
int c;
opterr = 0;
while ((c = getopt(argc, argv, "d:p:")) != -1) {
switch (c) {
case 'd':
debug_filename = optarg;
break;
case 'p':
input_filename = optarg;
break;
case '?':
fprintf(stderr, "Unknown option: %c\n", optopt);
print_usage();
return 1;
default:
print_usage();
return 1;
}
}
if (optind < argc || input_filename == NULL || (ends_with(input_filename, required_input_ext, 0) != 1)) {
print_usage();
return 1;
}
FILE *input_file = fopen(input_filename, "rb");
if (!input_file) {
fprintf(stderr, "Fatal error when opening input file: '%s'\n", argv[1]);
exit(1);
}
FILE *debug_file = NULL;
if (debug_filename) {
debug_file = fopen(debug_filename, "w");
}
chip_8_cpu cpu = initialize_cpu();
initialize_memory(cpu, input_file);
fclose(input_file);
execute_loop(cpu, debug_file);
free_cpu(cpu);
return EXIT_SUCCESS;
}
int main(int args, char *argv[]) {
char *save_file;
ines_file *nes_rom;
/* Print NOW everything :D */
#ifdef _MSC_VER
setvbuf(stdout,NULL,_IONBF,0);
setvbuf(stderr,NULL,_IONBF,0);
#else
setbuf(stdout,NULL);
setbuf(stderr,NULL);
#endif
/* i18n stuff */
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
/* Parse command line options */
initialize_configuration();
switch ( parse_options(args, argv) ) {
case -1:
usage(stderr,argv);
exit(EXIT_FAILURE);
case 0:
exit(EXIT_SUCCESS);
default:
break;
}
load_user_configuration();
/* Initialize static data */
initialize_palette();
initialize_instruction_set();
initialize_playback();
initialize_apu();
initialize_cpu();
initialize_ppu();
initialize_clock();
initialize_pads();
/* Read the ines file and get all the ROM/VROM */
config.rom_file = argv[optind];
nes_rom = check_ines_file(config.rom_file);
map_rom_memory(nes_rom);
save_file = load_sram(config.rom_file);
/* Init the graphics engine */
init_screen();
init_gui();
/* Main execution loop */
main_loop();
/* After finishing the emulation, save the SRAM if necessary */
save_sram(save_file);
free(save_file);
/* Free all the used resources */
mapper->end_mapper();
end_screen();
end_gui();
end_ppu();
end_cpu();
end_apu();
end_playback();
free_ines_file(nes_rom);
return 0;
}