int machine_manager::execute()
{
bool started_empty = false;
bool firstgame = true;
bool firstrun = true;
// loop across multiple hard resets
bool exit_pending = false;
int error = MAMERR_NONE;
if (m_options.console()) {
m_lua->start_console();
}
while (error == MAMERR_NONE && !exit_pending)
{
m_new_driver_pending = nullptr;
// if no driver, use the internal empty driver
const game_driver *system = m_options.system();
if (system == nullptr)
{
system = &GAME_NAME(___empty);
if (firstgame)
started_empty = true;
}
firstgame = false;
// parse any INI files as the first thing
if (m_options.read_config())
{
m_options.revert(OPTION_PRIORITY_INI);
std::string errors;
m_options.parse_standard_inis(errors);
}
// otherwise, perform validity checks before anything else
if (system != nullptr)
{
validity_checker valid(m_options);
valid.set_verbose(false);
valid.check_shared_source(*system);
}
// create the machine configuration
machine_config config(*system, m_options);
// create the machine structure and driver
running_machine machine(config, *this);
set_machine(&machine);
// run the machine
error = machine.run(firstrun);
firstrun = false;
// check the state of the machine
if (m_new_driver_pending)
{
std::string old_system_name(m_options.system_name());
bool new_system = (old_system_name.compare(m_new_driver_pending->name)!=0);
// first: if we scheduled a new system, remove device options of the old system
// notice that, if we relaunch the same system, there is no effect on the emulation
if (new_system)
m_options.remove_device_options();
// second: set up new system name (and the related device options)
m_options.set_system_name(m_new_driver_pending->name);
// third: if we scheduled a new system, take also care of ramsize options
if (new_system)
{
std::string error_string;
m_options.set_value(OPTION_RAMSIZE, "", OPTION_PRIORITY_CMDLINE, error_string);
}
firstrun = true;
if (m_options.software_name())
{
std::string sw_load(m_options.software_name());
std::string sw_list, sw_name, sw_part, sw_instance, option_errors, error_string;
int left = sw_load.find_first_of(':');
int middle = sw_load.find_first_of(':', left + 1);
int right = sw_load.find_last_of(':');
sw_list = sw_load.substr(0, left - 1);
sw_name = sw_load.substr(left + 1, middle - left - 1);
sw_part = sw_load.substr(middle + 1, right - middle - 1);
sw_instance = sw_load.substr(right + 1);
sw_load.assign(sw_load.substr(0, right));
char arg[] = "ume";
char *argv = &arg[0];
m_options.set_value(OPTION_SOFTWARENAME, sw_name.c_str(), OPTION_PRIORITY_CMDLINE, error_string);
m_options.parse_slot_devices(1, &argv, option_errors, sw_instance.c_str(), sw_load.c_str());
}
}
else
{
if (machine.exit_pending()) m_options.set_system_name("");
}
if (machine.exit_pending() && (!started_empty || (system == &GAME_NAME(___empty))))
exit_pending = true;
// machine will go away when we exit scope
set_machine(nullptr);
}
// return an error
return error;
}
void emu_options::set_system_name(const char *name)
{
// remember the original system name
std::string old_system_name(system_name());
bool new_system = old_system_name.compare(name)!=0;
// if the system name changed, fix up the device options
if (new_system)
{
// first set the new name
std::string error;
set_value(OPTION_SYSTEMNAME, name, OPTION_PRIORITY_CMDLINE, error);
assert(error.empty());
// remove any existing device options
remove_device_options();
}
else
{
// revert device options set for the old software
revert(OPTION_PRIORITY_SUBCMD, OPTION_PRIORITY_SUBCMD);
}
// get the new system
const game_driver *cursystem = system();
if (cursystem == nullptr)
return;
if (*software_name() != 0)
{
std::string sw_load(software_name());
std::string sw_list, sw_name, sw_part, sw_instance, option_errors, error_string;
int left = sw_load.find_first_of(':');
int middle = sw_load.find_first_of(':', left + 1);
int right = sw_load.find_last_of(':');
sw_list = sw_load.substr(0, left - 1);
sw_name = sw_load.substr(left + 1, middle - left - 1);
sw_part = sw_load.substr(middle + 1, right - middle - 1);
sw_instance = sw_load.substr(right + 1);
sw_load.assign(sw_load.substr(0, right));
// look up the software part
machine_config config(*cursystem, *this);
software_list_device *swlist = software_list_device::find_by_name(config, sw_list.c_str());
software_info *swinfo = swlist != nullptr ? swlist->find(sw_name.c_str()) : nullptr;
software_part *swpart = swinfo != nullptr ? swinfo->find_part(sw_part.c_str()) : nullptr;
// then add the options
if (new_system)
{
while (add_slot_options(swpart)) { }
add_device_options();
}
set_value(OPTION_SOFTWARENAME, sw_name.c_str(), OPTION_PRIORITY_CMDLINE, error_string);
if (exists(sw_instance.c_str()))
set_value(sw_instance.c_str(), sw_load.c_str(), OPTION_PRIORITY_SUBCMD, error_string);
int num;
do {
num = options_count();
update_slot_options(swpart);
} while(num != options_count());
}
else if (new_system)
{
// add the options afresh
while (add_slot_options()) { }
add_device_options();
int num;
do {
num = options_count();
update_slot_options();
} while(num != options_count());
}
}