14. Assembly program example

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      .eqv  SYSCALL_PRINT_STRING 4
      .eqv  SYSCALL_EXIT_PROG    10
       
      .data   # data segment begins
  
  #  Define a greeting message:
  Message:  .asciiz    "Hello World!\n"
  
      .text
  
  # Print the greeting message:
      li $v0, SYSCALL_PRINT_STRING
      la $a0, Message
      syscall               # print string
  
  # Return to the operating system:
      li $v0, SYSCALL_EXIT_PROG
      syscall               # exit program