void terminal_scroll(){
        for(unsigned int i = 0; i < VGA_HEIGHT; i++){
                for (unsigned int m = 0; m < VGA_WIDTH; m++){
                        terminal_buffer[i * VGA_WIDTH + m] = terminal_buffer[(i + 1) * VGA_WIDTH + m];
                }
        }
}

void terminal_putchar(char c) {
        if (c == '\n') {
                terminal_column = 0;
                terminal_row++;
        } else if (c == '\b') {
        if (terminal_column != 0) {
            terminal_column--;
            terminal_putentryat(0, terminal_color, terminal_column, terminal_row);
        } else {
            terminal_row--;
        }
        update_cursor_pos();
    } else {
        terminal_putentryat(c, terminal_color, terminal_column, terminal_row);
        if (++terminal_column == VGA_WIDTH) {
                    terminal_column = 0;
                if (++terminal_row == VGA_HEIGHT) terminal_scroll();
            }
        }
}