_modu

 NAME
  _modu - unsigned long modulus 32%32->32 assembly tag
      not callable from C

 ENTRY
  D0 = 32 bit unsigned integer
  D1 = 32 bit unsigned integer

 RETURN
  D0 = D0 % D1

 FUNCTION
  This is an assembly function that DICE uses whenever it needs to do
  an unsigned long modulus.  This function is not callable from C.

 SEE ALSO
  _divs, _mods, _muls, _mulu