// kernel for the bad dos.
void print(const char* str) {
    while (*str) {
        __asm__ __volatile__(
            "mov ah, 0x0E"
            "mov al, %[char];"
            "int 0x10;"
            :
            : [char] "r" (*str)
        );
    }
}

void main() {
    print("Welcome to BadDOS!\r\n");
    print("type something or die:\r\n");

    while (1) {
        print("/dev/flp/> ");
        char c = get_char();
        print_char(c);
        if (c == '\r') print("\r\n");
    }
}