[NQH]:~/BO$ cat hw.asm
USE32           ; tell nasm we're using 32-bit system
  jmp short string
code:
  pop ecx       ; write(1, "Hello, World!", 13);
  mov ebx, 1    ; output file descriptor for write
  mov edx, 14   ; length of output string
  mov eax, 4    ; 4 is the system call number of write
  int 0x80      ; finally, invoke the system call
  mov ebx, 0    ;
  mov eax, 1
  int 0x80
string:
  call code
  db 'Hello, World!', 0x0a
[NQH]:~/BO$ nasm hw.asm
[NQH]:~/BO$ bct hw
----------------------
Calling your code ...
----------------------
Hello, World!
[NQH]:~/BO$ bct -p hw
----------------------
Printing your code ...
----------------------

char bytecode[] = 
   "\xeb\x1e\x59\xbb\x01\x00\x00\x00\xba\x0e\x00\x00\x00\xb8\x04\x00"
   "\x00\x00\xcd\x80\xbb\x00\x00\x00\x00\xb8\x01\x00\x00\x00\xcd\x80"
   "\xe8\xdd\xff\xff\xff\x48\x65\x6c\x6c\x6f\x2c\x20\x57\x6f\x72\x6c"
   "\x64\x21\x0a"

• Open a file named "yourLastName.txt" (replace yourLastName by YOUR last name)
• Write to the file the string "Gotcha! Gotcha! Gotcha!", in which the middle 2 whitespaces are actually be NULL bytes.
• Close the file and exit.