git.sur5r.net Git - cc65/blob - libsrc/common/cc65_umul8x8r16.s

   1 ;
   2 ; Oliver Schmidt, 2014-03-27
   3 ;
   4 ; CC65 library: 8x8 => 16 unsigned multiplication
   5 ;
   6
   7         .export         _cc65_umul8x8r16
   8         .import         umul8x8r16, popa
   9
  10         .include        "zeropage.inc"
  11
  12
  13 ;---------------------------------------------------------------------------
  14 ; 8x8 => 16 unsigned multiplication routine.
  15
  16
  17 .proc   _cc65_umul8x8r16
  18
  19         sta     ptr1
  20         jsr     popa
  21         jmp     umul8x8r16
  22
  23 .endproc