dingusppc/main.cpp

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-20 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
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// The main runfile - main.cpp
// This is where the magic begins
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#include "debugger/debugger.h"
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#include "execution/interpreter_loop.h"
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#include "machines/machinefactory.h"
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#include "machines/machineproperties.h"
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#include "utils/profiler.h"
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#include "ppcemu.h"
#include <cinttypes>
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#include <csignal>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <sstream>
#include <stdio.h>
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#include <CLI11.hpp>
#include <SDL.h>
#include <loguru.hpp>
using namespace std;
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void sigint_handler(int signum) {
enter_debugger();
LOG_F(INFO, "Shutting down...");
delete gMachineObj.release();
SDL_Quit();
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exit(0);
}
void sigabrt_handler(int signum) {
LOG_F(INFO, "Shutting down...");
delete gMachineObj.release();
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SDL_Quit();
}
static string appDescription = string(
"\nDingusPPC - Prototype 5bf5 (8/23/2020) "
"\nWritten by divingkatae and maximumspatium "
"\n(c) 2018-2020 The DingusPPC Dev Team. "
"\nThis is not intended for general use. "
"\nUse at your own discretion. "
"\n"
);
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int main(int argc, char** argv) {
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/*
Execution Type:
0 = Realtime (Interpreter)
1 = Realtime (Debugger)
2 = Recompiler (to-do)
The rest will be decided later
*/
uint32_t execution_mode = 0;
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CLI::App app(appDescription);
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app.allow_windows_style_options(); /* we want Windows-style options */
app.allow_extras();
bool realtime_enabled, debugger_enabled;
string machine_str;
string bootrom_path("bootrom.bin");
app.add_flag("-r,--realtime", realtime_enabled,
"Run the emulator in real-time");
app.add_flag("-d,--debugger", debugger_enabled,
"Enter the built-in debugger");
app.add_option("-b,--bootrom", bootrom_path, "Specifies BootROM path")
->check(CLI::ExistingFile);
CLI::Option* machine_opt = app.add_option("-m,--machine",
machine_str, "Specify machine ID");
auto list_cmd = app.add_subcommand("list",
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"Display available machine configurations and exit");
string sub_arg;
list_cmd->add_option("machines", sub_arg, "List supported machines");
list_cmd->add_option("properties", sub_arg, "List available properties");
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CLI11_PARSE(app, argc, argv);
if (*list_cmd) {
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if (sub_arg == "machines") {
list_machines();
} else if (sub_arg == "properties") {
list_properties();
} else {
cout << "Unknown list subcommand " << sub_arg << endl;
}
return 0;
}
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if (debugger_enabled) {
if (realtime_enabled)
cout << "Both realtime and debugger enabled! Using debugger" << endl;
execution_mode = 1;
}
/* initialize logging */
loguru::g_preamble_date = false;
loguru::g_preamble_time = false;
loguru::g_preamble_thread = false;
if (!execution_mode) {
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loguru::g_stderr_verbosity = loguru::Verbosity_OFF;
loguru::init(argc, argv);
loguru::add_file("dingusppc.log", loguru::Append, 0);
} else {
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loguru::g_stderr_verbosity = loguru::Verbosity_INFO;
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loguru::init(argc, argv);
}
if (*machine_opt) {
LOG_F(INFO, "Machine option was passed in: %s", machine_str.c_str());
} else {
machine_str = machine_name_from_rom(bootrom_path);
if (machine_str.empty()) {
LOG_F(ERROR, "Could not autodetect machine");
return 0;
}
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else {
LOG_F(INFO, "Machine was autodetected as: %s", machine_str.c_str());
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}
}
/* handle overriding of machine settings from command line */
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map<string, string> settings;
if (get_machine_settings(machine_str, settings) < 0) {
return 0;
}
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CLI::App sa;
sa.allow_extras();
for (auto& s : settings) {
sa.add_option("--" + s.first, s.second);
}
sa.parse(app.remaining_for_passthrough()); /* TODO: handle exceptions! */
set_machine_settings(settings);
cout << "BootROM path: " << bootrom_path << endl;
cout << "Execution mode: " << execution_mode << endl;
if (SDL_Init(SDL_INIT_VIDEO)) {
LOG_F(ERROR, "SDL_Init error: %s", SDL_GetError());
return 0;
}
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// initialize global profiler object
gProfilerObj.reset(new Profiler());
if (create_machine_for_id(machine_str, bootrom_path) < 0) {
goto bail;
}
// graceful handling of fatal errors
loguru::set_fatal_handler([](const loguru::Message& message) {
enter_debugger();
abort();
});
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// redirect SIGINT to our own handler
signal(SIGINT, sigint_handler);
// redirect SIGABRT to our own handler
signal(SIGABRT, sigabrt_handler);
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switch (execution_mode) {
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case 0:
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interpreter_main_loop();
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break;
case 1:
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enter_debugger();
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break;
default:
LOG_F(ERROR, "Invalid EXECUTION MODE");
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return 0;
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}
bail:
LOG_F(INFO, "Cleaning up...");
delete gMachineObj.release();
SDL_Quit();
return 0;
}