BYTE save_slot_load(BYTE slot) {
uTCHAR *file;
FILE *fp;
if (tas.type) {
text_add_line_info(1, "[yellow]movie playback interrupted[normal]");
tas_quit();
}
/* game genie */
if (info.mapper.id == GAMEGENIE_MAPPER) {
gamegenie_reset();
gamegenie.phase = GG_LOAD_ROM;
emu_reset(CHANGE_ROM);
gamegenie.phase = GG_FINISH;
}
if (slot < SAVE_SLOT_FILE) {
if ((file = name_slot_file(slot)) == NULL) {
return (EXIT_ERROR);
}
} else {
file = cfg->save_file;
}
if ((fp = ufopen(file, uL("rb"))) == NULL) {
text_add_line_info(1, "[red]error[normal] loading state");
fprintf(stderr, "error loading state\n");
return (EXIT_ERROR);
}
/*
* mi salvo lo stato attuale da ripristinare in caso
* di un file di salvataggio corrotto.
*/
timeline_snap(TL_SAVE_SLOT);
if (slot == SAVE_SLOT_FILE) {
slot_operation(SAVE_SLOT_COUNT, slot, fp);
if (memcmp(info.sha1sum.prg.value, save_slot.sha1sum.prg.value,
sizeof(info.sha1sum.prg.value)) != 0) {
text_add_line_info(1, "[red]state file is not for this rom[normal]");
fprintf(stderr, "state file is not for this rom.\n");
timeline_back(TL_SAVE_SLOT, 0);
fclose(fp);
return (EXIT_ERROR);
}
}
if (slot_operation(SAVE_SLOT_READ, slot, fp)) {
fprintf(stderr, "error loading state, corrupted file.\n");
timeline_back(TL_SAVE_SLOT, 0);
fclose(fp);
return (EXIT_ERROR);
}
fclose(fp);
if (slot < SAVE_SLOT_FILE) {
text_save_slot(SAVE_SLOT_READ);
}
/* riavvio il timeline */
timeline_init();
return (EXIT_OK);
}
BYTE emu_frame(void) {
#if defined (DEBUG)
WORD PCBREAK = 0xA930;
#endif
#if defined (SDL) && defined (__WIN32__)
gfx_sdlwe_tick();
#endif
gui_control_visible_cursor();
tas.lag_frame = TRUE;
/* gestione uscita */
if (info.stop == TRUE) {
emu_quit(EXIT_SUCCESS);
}
/* eseguo un frame dell'emulatore */
if (!(info.no_rom | info.pause)) {
/* controllo se ci sono eventi di input */
if (tas.type) {
tas_frame();
} else {
BYTE i;
for (i = PORT1; i < PORT_MAX; i++) {
if (input_add_event[i]) {
input_add_event[i](i);
}
}
}
/* riprendo a far correre la CPU */
info.execute_cpu = TRUE;
while (info.execute_cpu == TRUE) {
#if defined (DEBUG)
if (cpu.PC == PCBREAK) {
BYTE pippo = 5;
pippo = pippo + 1;
}
#endif
/* eseguo CPU, PPU e APU */
cpu_exe_op();
}
if ((cfg->cheat_mode == GAMEGENIE_MODE) && (gamegenie.phase == GG_LOAD_ROM)) {
emu_reset(CHANGE_ROM);
gamegenie.phase = GG_FINISH;
}
if (tas.lag_frame) {
tas.total_lag_frames++;
}
if (snd_end_frame) {
snd_end_frame();
}
//#if defined (DEBUG)
// gfx_draw_screen(TRUE);
//#else
gfx_draw_screen(FALSE);
//#endif
if (!tas.type && (++tl.frames == tl.frames_snap)) {
timeline_snap(TL_NORMAL);
}
r4011.frames++;
} else {
gfx_draw_screen(FALSE);
}
/* gestione frameskip e calcolo fps */
fps_frameskip();
return (EXIT_OK);
}
