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Encoding:
Text File  |  1999-06-23  |  144 b   |  13 lines
  1. ; d0 - character
  2.  
  3.     xdef    _IsBin
  4.  
  5. _IsBin    cmp.b    #"0",d0
  6.     blt.s    .false
  7.     cmp.b    #"1",d0
  8.     bgt.s    .false
  9. .true    moveq    #-1,d0
  10.     rts
  11. .false    moveq    #0,d0
  12.     rts
  13.