src/nmutil/divmod.py

   1 # this is a POWER ISA 3.0B compatible div function
   2 # however it is also the c, c++, rust, java *and* x86 way of doing things
   3 def trunc_div(n, d):
   4     abs_n = abs(n)
   5     abs_d = abs(d)
   6     abs_q = abs_n // abs_d
   7     #print ("trunc_div", n.value, d.value,
   8     #                    abs_n.value, abs_d.value, abs_q.value,
   9     #                    n == abs_n, d == abs_d)
  10     if (n == abs_n) == (d == abs_d):
  11         return abs_q
  12     return -abs_q
  13
  14
  15 # this is a POWER ISA 3.0B compatible mod / remainder function
  16 # however it is also the c, c++, rust, java *and* x86 way of doing things
  17 def trunc_rem(n, d):
  18     return n - d * trunc_div(n, d)
  19
  20