From: bc@nospicedham.freeuk.com   
      
   On 24/04/2018 10:48, bilsch wrote:   
   > The boot sector jumps to this code.   
   > It should print junk6789 but prints only j   
   > Why it not print junk6789 ?   TIA.   Bill S.   
      
   >   
   > pbuf    times 80 db 0   
   > string    db 'junk'   
      
   >            mov si,pbuf   
   >            mov di,string   
   > lup8:     mov al,[di]   
   >            mov byte[si],al   
   >            inc si   
   >            inc di   
   >            cmp di,4   
   >            jbe lup8   
      
   di starts at label 'string'. Is that address 0? If not then comparing it   
   with 4 looks odd.   
      
   If string has an address of at least 80 as seems likely, then this will   
   compare false and only one character is copied to the buffer.   
      
   --   
   bartc   
      
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