@@ -90,6 +90,8 @@ uxnemu orca.rom | shim

 - `-2x` Force medium scale

 - `-3x` Force large scale

+- `-f`  Force fullscreen mode

+- `--`  Force next argument to be read as ROM name. (This is useful if your ROM file is named `-v`, `-2x`, and so forth.)

 ## GUI Emulator Controls

@@ -98,6 +100,7 @@ uxnemu orca.rom | shim

 - `F3` capture screen

 - `F4` reboot

 - `F5` soft reboot

+- `F11` toggle fullscreen

 ### GUI Buttons

@@ -56,6 +56,7 @@ static SDL_Thread *stdin_thread;

 /* devices */

 static int window_created = 0;

+static int fullscreen = 0;

 static Uint32 stdin_event, audio0_event, zoom = 1;

 static Uint64 exec_deadline, deadline_interval, ms_interval;

@@ -187,6 +188,18 @@ set_zoom(Uint8 z, int win)

 	}

 }

+static void

+set_fullscreen(int new_fullscreen, int win)

+{

+	fullscreen = new_fullscreen;

+	Uint32 flags = 0; /* windowed mode; SDL2 has no constant for this */

+	if(fullscreen) {

+		flags = SDL_WINDOW_FULLSCREEN_DESKTOP;

+	}

+		if(win)

+			SDL_SetWindowFullscreen(emu_window, flags);

+}

+

 /* emulator primitives */

 int

@@ -390,6 +403,8 @@ handle_events(Uxn *u)

 				emu_restart(u, boot_rom, 0);

 			else if(event.key.keysym.sym == SDLK_F5)

 				emu_restart(u, boot_rom, 1);

+			else if(event.key.keysym.sym == SDLK_F11)

+				set_fullscreen(!fullscreen, 1);

 			ksym = event.key.keysym.sym;

 			if(SDL_PeepEvents(&event, 1, SDL_PEEKEVENT, SDL_KEYUP, SDL_KEYUP) == 1 && ksym == event.key.keysym.sym)

 				return 1;

@@ -455,7 +470,10 @@ emu_run(Uxn *u, char *rom)

 	Uint64 frame_interval = SDL_GetPerformanceFrequency() / 60;

 	Uint8 *vector_addr = &u->dev[0x20];

 	window_created = 1;

-	emu_window = SDL_CreateWindow(rom, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, (uxn_screen.width + PAD2) * zoom, (uxn_screen.height + PAD2) * zoom, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);

+	Uint32 window_flags = SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI;

+	if (fullscreen)

+		window_flags = window_flags | SDL_WINDOW_FULLSCREEN_DESKTOP;

+	emu_window = SDL_CreateWindow(rom, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, (uxn_screen.width + PAD2) * zoom, (uxn_screen.height + PAD2) * zoom, window_flags);

 	if(emu_window == NULL)

 		return system_error("sdl_window", SDL_GetError());

 	emu_renderer = SDL_CreateRenderer(emu_window, -1, SDL_RENDERER_ACCELERATED);

@@ -508,7 +526,7 @@ main(int argc, char **argv)

 	Uxn u = {0};

 	int i = 1;

 	if(i == argc)

-		return system_error("usage", "uxnemu [-v][-2x][-3x] file.rom [args...]");

+		return system_error("usage", "uxnemu [-v] | uxnemu [-f | -2x | -3x | --] file.rom [args...]");

 	/* Connect Varvara */

 	system_connect(0x0, SYSTEM_VERSION, SYSTEM_DEIMASK, SYSTEM_DEOMASK);

 	system_connect(0x1, CONSOLE_VERSION, CONSOLE_DEIMASK, CONSOLE_DEOMASK);

@@ -522,11 +540,20 @@ main(int argc, char **argv)

 	system_connect(0xa, FILE_VERSION, FILE_DEIMASK, FILE_DEOMASK);

 	system_connect(0xb, FILE_VERSION, FILE_DEIMASK, FILE_DEOMASK);

 	system_connect(0xc, DATETIME_VERSION, DATETIME_DEIMASK, DATETIME_DEOMASK);

-	/* Read flags */

-	if(argv[i][0] == '-' && argv[i][1] == 'v')

-		return system_version("Uxnemu - Graphical Varvara Emulator", "2 Sep 2023");

-	if(strcmp(argv[i], "-2x") == 0 || strcmp(argv[i], "-3x") == 0)

-		set_zoom(argv[i++][1] - '0', 0);

+	/* Read flag. Right now, there can be only one. */

+	if(argv[i][0] == '-') {

+		if(argv[i][1] == 'v')

+			return system_version("Uxnemu - Graphical Varvara Emulator", "2 Sep 2023");

+		if(argv[i][1] == '-')

+			i++;

+		if(strcmp(argv[i], "-2x") == 0 || strcmp(argv[i], "-3x") == 0)

+			set_zoom(argv[i++][1] - '0', 0);

+		if(strcmp(argv[i], "-f") == 0) {

+			i++;

+			set_fullscreen(1, 0);

+		}

+	}

+	/* Start system. */

 	if(!emu_init())

 		return system_error("Init", "Failed to initialize varvara.");

 	if(!system_init(&u, (Uint8 *)calloc(0x10000 * RAM_PAGES, sizeof(Uint8)), argv[i++]))