title: NASM error: parser instruction expected
body: <pre><code> ;**********************************
   ; Boot1.asm
   ;      - A Simple Bootloader
   ;   Operating System Development
   ;**********************************
  
      org 0x7c00    ;BIOS loaded at 0x7c00
  
      bits 16       ; We are still in 16 bit real mode
  
       Start:
       cli      ; clear all interrupts
       hlt      ; halt the system
  
       times 510 - ($-$$) db 0  ;We have to be 512 bytes.Clear rest of bytes with 0
  
       ddw 0xAA55               ;Boot signature
  </code></pre>
  
  <p>I have written a simple boot-loader program in nasm on Windows 7 but I am getting an error: </p>
  
  <pre><code> error:parser: instruction expected.
  </code></pre>
  
  <p>This problem has been solved previously but I am not getting it in my context.</p>