long print(const void *buf, long count) {
    asm volatile (
        "syscall"
        :
        : "a"(1), "D"(1), "S"(buf), "d"(count)  // RDI, RSI, RDX are used in x86-64 for write args
        : "rcx", "r11", "memory"
    );
    return 0;
}

void exit(int e) {
  asm volatile(
    "syscall"
    :
    : "a"(60), "D"(e)
    :
    );
  for(;;);
}


int main() {
//void _start() {
  char *msg = "Hello World!\n";
  print(msg, 13);
  return 69;
}
void __libc_start_main() {exit(main());}

/*
#if defined(__x86_64__)
        printf("Compiled for x86_64 architecture\n");
    #elif defined(__i386__)
        printf("Compiled for x86 architecture\n");
    #elif defined(__arm__)
        printf("Compiled for ARM architecture\n");
    #elif defined(__aarch64__)
        printf("Compiled for ARM64 architecture\n");
    #elif defined(__mips__)
        printf("Compiled for ARM architecture\n");
    #else
        printf("Unknown architecture\n");
    #endif
*/