src/ieee754/fpmul/test/test_mul.py

   1 import sys
   2 from random import randint
   3 from random import seed
   4 from operator import mul
   5
   6 from nmigen import Module, Signal
   7 from nmigen.compat.sim import run_simulation
   8
   9 from ieee754.fpmul.fmul import FPMUL
  10
  11 from ieee754.fpcommon.test.unit_test_single import (get_mantissa, get_exponent,
  12                                 get_sign, is_nan,
  13                                 is_inf, is_pos_inf, is_neg_inf,
  14                                 match, get_case, check_case, run_fpunit,
  15                                 run_edge_cases, run_corner_cases)
  16
  17
  18 def tbench(dut, maxcount, num_loops):
  19
  20     yield from check_case(dut, 0x40000000, 0x40000000, 0x40800000, 0xffcaeefa)
  21     yield from check_case(dut, 0x41400000, 0x40A00000, 0x42700000, 0x3f803262)
  22
  23     count = 0
  24
  25     #regression tests
  26
  27     stimulus_a = [0xffcaeefa, 0xae430313, 0xa4504d7,
  28                   0xba57711a, 0xbf9b1e94, 0x34082401, 0x5e8ef81,
  29                   0x5c75da81, 0x2b017]
  30     stimulus_b = [0x3f803262, 0x901c3214, 0xb4658540,
  31                   0xee1818c5, 0xc038ed3a, 0xb328cd45, 0x114f3db,
  32                   0x2f642a39, 0xff3807ab]
  33     yield from run_fpunit(dut, stimulus_a, stimulus_b, mul, get_case)
  34     count += len(stimulus_a)
  35     print (count, "vectors passed")
  36
  37     yield from run_corner_cases(dut, count, mul, get_case)
  38     yield from run_edge_cases(dut, count, mul, get_case, maxcount, num_loops)
  39
  40
  41 def test1(maxcount=10, num_loops=5):
  42     dut = FPMUL(width=32)
  43     run_simulation(dut, tbench(dut, maxcount, num_loops),
  44                         vcd_name="test_mul.vcd")
  45
  46 if __name__ == '__main__':
  47     test1(maxcount=1000, num_loops=1000)