from nmigen import Module, Signal
from nmigen.compat.sim import run_simulation
+from operator import add
from nmigen_add_experiment import FPADD
from unit_test_double import (get_mantissa, get_exponent, get_sign, is_nan,
is_inf, is_pos_inf, is_neg_inf,
- match, get_case, check_case, run_test)
+ match, get_case, check_case, run_test,
+ run_edge_cases, run_corner_cases)
def testbench(dut):
#regression tests
stimulus_a = [0x3ff00000000000c5, 0xff80000000000000]
stimulus_b = [0xbd28a404211fb72b, 0x7f80000000000000]
- yield from run_test(dut, stimulus_a, stimulus_b)
+ yield from run_test(dut, stimulus_a, stimulus_b, add)
count += len(stimulus_a)
print (count, "vectors passed")
- #corner cases
- from itertools import permutations
- stimulus_a = [i[0] for i in permutations([
- 0x8000000000000000,
- 0x0000000000000000,
- 0x7ff8000000000000,
- 0xfff8000000000000,
- 0x7ff0000000000000,
- 0xfff0000000000000
- ], 2)]
- stimulus_b = [i[1] for i in permutations([
- 0x8000000000000000,
- 0x0000000000000000,
- 0x7ff8000000000000,
- 0xfff8000000000000,
- 0x7ff0000000000000,
- 0xfff0000000000000
- ], 2)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- #edge cases
- stimulus_a = [0x8000000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x0000000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x8000000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x0000000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x7FF8000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0xFFF8000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x7FF8000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0xFFF8000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x7FF0000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0xFFF0000000000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x7FF0000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0xFFF0000000000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- #seed(0)
- for i in range(100000):
- stimulus_a = [randint(0, 1<<64) for i in range(1000)]
- stimulus_b = [randint(0, 1<<64) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += 1000
- print (count, "random vectors passed")
+ yield from run_corner_cases(dut, count, add)
+ yield from run_edge_cases(dut, count, add)
if __name__ == '__main__':
- dut = FPADD(width=64, single_cycle=True)
+ dut = FPADD(width=64, single_cycle=False)
run_simulation(dut, testbench(dut), vcd_name="test_add64.vcd")