From: address@nospicedham.not.available   
      
   Wolfgang   
      
   > 81 00 80 FF   add word [bx+si], 0xFF80  ;unsigned   
   > 83 00 80      add word [bx+si],-128     ;sign extended byte   
   >   
   > both do the same ...   
      
   :-) You got me, there are indeed a few more instructions that actually do   
   consider signed immediate values   
      
   Though did you /have/ to use that particular decimal value ?   As a byte its   
   one of two special values that can't be negated (made negative), which   
   rather distracted me. :-p   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)