void
clear_screen()
{
if (!iflags.grmode) {
txt_clear_screen();
#ifdef SCREEN_VGA
} else if (iflags.usevga) {
vga_clear_screen(BACKGROUND_VGA_COLOR);
#endif
}
}
void console_main(void){
//Init games
num_games = 3;
game_definitions = malloc(sizeof(struct game_definition)*num_games);
game_definitions[0].main_entry = &line_racer_main;
game_definitions[0].name = "Line Racer";
game_definitions[0].name_len = 10;
game_definitions[1].main_entry = &pong_main;
game_definitions[1].name = "Pong";
game_definitions[1].name_len = 4;
game_definitions[2].main_entry = &_256_main;
game_definitions[2].name = "256 Color Demo";
game_definitions[2].name_len = 14;
unsigned char selection = 0;
while(1){
vga_draw_string(20, 20, COLOR_WHITE, "Select Game", 11);
int i = 0;
for(i = 0; i < num_games; i++){
if(selection == i){
vga_draw_character(29, 30 + i*8, COLOR_RED, '>');
vga_draw_string(35, 30 + i*8, COLOR_RED, game_definitions[i].name, game_definitions[i].name_len);
}else{
vga_draw_character(29, 30 + i*8, COLOR_BLACK, '>');
vga_draw_string(35, 30 + i*8, COLOR_WHITE, game_definitions[i].name, game_definitions[i].name_len);
}
}
if(controller_is_down(0, ps_start)){
void (*game_entry) ();
game_entry = game_definitions[selection].main_entry;
game_entry();
vga_clear_screen(COLOR_BLACK);
}else if(controller_is_down(0, ps_dpad_down)){
selection++;
if(selection >= num_games)
selection = 0;
sleep_frames(25);
}else if(controller_is_down(0, ps_dpad_up)){
selection--;
if(selection >= num_games)
selection = num_games-1;
sleep_frames(25);
}
sleep_frame();
}
}
void
clear_screen()
{
if (!iflags.grmode) {
txt_clear_screen();
# ifdef SCREEN_VGA
} else if (iflags.usevga) {
vga_clear_screen(BACKGROUND_VGA_COLOR);
# endif
# ifdef ALLEG_FX
} else if (iflags.usealleg) {
alleg_clear_screen(BACKGROUND_ALLEGRO_COLOR);
# endif
}
}
void kernel_main(void)
{
vga_clear_screen();
//Load the GDT
gdt_create_flat_layout();
gdt_load_global_descriptor_table();
vga_print_string("GDT loading: OK\n", attribute_white_on_black);
//Create the ISR's and load the IDT
isr_create_exception_isrs();
isr_create_interrupt_isrs();
idt_load_interrupt_descriptor_table();
vga_print_string("IDT loading: OK\n", attribute_white_on_black);
vga_print_string("Hanging the CPU...\n", attribute_white_on_black);
for(;;){}
}