int cpu_init(void)
{
int cpunum;
/* initialize the interfaces first */
if (cpuintrf_init())
return 1;
/* loop over all our CPUs */
for (cpunum = 0; cpunum < MAX_CPU; cpunum++)
{
int cputype = Machine->drv->cpu[cpunum].cpu_type;
/* if this is a dummy, stop looking */
if (cputype == CPU_DUMMY)
break;
/* set the save state tag */
state_save_set_current_tag(cpunum + 1);
/* initialize the cpuinfo struct */
memset(&cpu[cpunum], 0, sizeof(cpu[cpunum]));
cpu[cpunum].suspend = SUSPEND_REASON_RESET;
cpu[cpunum].clockscale = cputype_get_interface(cputype)->overclock;
/* compute the cycle times */
sec_to_cycles[cpunum] = cpu[cpunum].clockscale * Machine->drv->cpu[cpunum].cpu_clock;
cycles_to_sec[cpunum] = 1.0 / sec_to_cycles[cpunum];
/* initialize this CPU */
if (cpuintrf_init_cpu(cpunum, cputype))
return 1;
}
/* compute the perfect interleave factor */
compute_perfect_interleave();
/* save some stuff in tag 0 */
state_save_set_current_tag(0);
state_save_register_INT32("cpu", 0, "watchdog count", &watchdog_counter, 1);
/* reset the IRQ lines and save those */
if (cpuint_init())
return 1;
return 0;
}
static void init_machine(running_machine *machine)
{
mame_private *mame = machine->mame_data;
int num;
/* initialize basic can't-fail systems here */
cpuintrf_init(machine);
sndintrf_init(machine);
fileio_init(machine);
config_init(machine);
output_init(machine);
state_init(machine);
state_save_allow_registration(TRUE);
drawgfx_init(machine);
palette_init(machine);
render_init(machine);
ui_init(machine);
generic_machine_init(machine);
generic_video_init(machine);
mame->rand_seed = 0x9d14abd7;
/* initialize the base time (if not doing record/playback) */
if (!Machine->record_file && !Machine->playback_file)
time(&mame->base_time);
else
mame->base_time = 0;
/* init the osd layer */
if (osd_init(machine) != 0)
fatalerror("osd_init failed");
/* initialize the input system */
/* this must be done before the input ports are initialized */
if (code_init(machine) != 0)
fatalerror("code_init failed");
/* initialize the input ports for the game */
/* this must be done before memory_init in order to allow specifying */
/* callbacks based on input port tags */
if (input_port_init(machine, machine->gamedrv->ipt) != 0)
fatalerror("input_port_init failed");
/* load the ROMs if we have some */
/* this must be done before memory_init in order to allocate memory regions */
rom_init(machine, machine->gamedrv->rom);
/* initialize the timers and allocate a soft_reset timer */
/* this must be done before cpu_init so that CPU's can allocate timers */
timer_init(machine);
mame->soft_reset_timer = timer_alloc(soft_reset);
/* initialize the memory system for this game */
/* this must be done before cpu_init so that set_context can look up the opcode base */
if (memory_init(machine) != 0)
fatalerror("memory_init failed");
/* now set up all the CPUs */
if (cpuexec_init(machine) != 0)
fatalerror("cpuexec_init failed");
if (cpuint_init(machine) != 0)
fatalerror("cpuint_init failed");
#ifdef MESS
/* initialize the devices */
devices_init(machine);
#endif
/* start the save/load system */
saveload_init(machine);
/* call the game driver's init function */
/* this is where decryption is done and memory maps are altered */
/* so this location in the init order is important */
ui_set_startup_text("Initializing...", TRUE);
if (machine->gamedrv->driver_init != NULL)
(*machine->gamedrv->driver_init)(machine);
/* start the audio system */
if (sound_init(machine) != 0)
fatalerror("sound_init failed");
/* start the video hardware */
if (video_init(machine) != 0)
fatalerror("video_init failed");
/* start the cheat engine */
if (options.cheat)
cheat_init(machine);
/* call the driver's _START callbacks */
if (machine->drv->machine_start != NULL && (*machine->drv->machine_start)(machine) != 0)
fatalerror("Unable to start machine emulation");
if (machine->drv->sound_start != NULL && (*machine->drv->sound_start)(machine) != 0)
fatalerror("Unable to start sound emulation");
if (machine->drv->video_start != NULL && (*machine->drv->video_start)(machine) != 0)
fatalerror("Unable to start video emulation");
/* free memory regions allocated with REGIONFLAG_DISPOSE (typically gfx roms) */
for (num = 0; num < MAX_MEMORY_REGIONS; num++)
if (mame->mem_region[num].flags & ROMREGION_DISPOSE)
free_memory_region(machine, num);
#ifdef MAME_DEBUG
/* initialize the debugger */
if (machine->debug_mode)
mame_debug_init(machine);
#endif
}
