arch/.unmaintained/m68k-native/clib/__mulsi3.s

   1 | $Id$
   2 |
   3 | Code taken from libnix
   4 |
   5
   6                 .globl  ___mulsi3
   7
   8 | D0 = D0 * D1
   9
  10 ___mulsi3:      moveml  sp@(4),d0/d1
  11                 movel   d3,sp@-
  12                 movel   d2,sp@-
  13                 movew   d1,d2
  14                 mulu    d0,d2
  15                 movel   d1,d3
  16                 swap    d3
  17                 mulu    d0,d3
  18                 swap    d3
  19                 clrw    d3
  20                 addl    d3,d2
  21                 swap    d0
  22                 mulu    d1,d0
  23                 swap    d0
  24                 clrw    d0
  25                 addl    d2,d0
  26                 movel   sp@+,d2
  27                 movel   sp@+,d3
  28                 rts