-import sys
-import subprocess
-from random import randint
-from random import seed
+from operator import add
from nmigen import Module, Signal
from nmigen.compat.sim import run_simulation
from unit_test_single 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):
+ yield from check_case(dut, 0x006CE3EE, 0x806CE3EC, 0x00000002)
+ yield from check_case(dut, 0x00000047, 0x80000048, 0x80000001)
+ yield from check_case(dut, 0x000116C2, 0x8001170A, 0x80000048)
+ yield from check_case(dut, 0x7ed01f25, 0xff559e2c, 0xfedb1d33)
+ yield from check_case(dut, 0, 0, 0)
+ yield from check_case(dut, 0xFFFFFFFF, 0xC63B800A, 0x7FC00000)
+ yield from check_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+ #yield from check_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+ yield from check_case(dut, 0x7F800000, 0xFF800000, 0x7FC00000)
+ yield from check_case(dut, 0x42540000, 0xC2540000, 0x00000000)
+ yield from check_case(dut, 0xC2540000, 0x42540000, 0x00000000)
yield from check_case(dut, 0xfe34f995, 0xff5d59ad, 0xff800000)
yield from check_case(dut, 0x82471f51, 0x243985f, 0x801c3790)
- yield from check_case(dut, 0, 0, 0)
yield from check_case(dut, 0x40000000, 0xc0000000, 0x00000000)
yield from check_case(dut, 0x3F800000, 0x40000000, 0x40400000)
yield from check_case(dut, 0x40000000, 0x3F800000, 0x40400000)
yield from check_case(dut, 0xC2BA8A3D, 0x463B800A, 0x463A0AF6)
yield from check_case(dut, 0xC63B800A, 0x42BA8A3D, 0xC63A0AF6)
yield from check_case(dut, 0x42BA8A3D, 0xC63B800A, 0xC63A0AF6)
- yield from check_case(dut, 0xFFFFFFFF, 0xC63B800A, 0xFFC00000)
yield from check_case(dut, 0x7F800000, 0x00000000, 0x7F800000)
yield from check_case(dut, 0x00000000, 0x7F800000, 0x7F800000)
yield from check_case(dut, 0xFF800000, 0x00000000, 0xFF800000)
yield from check_case(dut, 0x00000000, 0xFF800000, 0xFF800000)
yield from check_case(dut, 0x7F800000, 0x7F800000, 0x7F800000)
yield from check_case(dut, 0xFF800000, 0xFF800000, 0xFF800000)
- yield from check_case(dut, 0x7F800000, 0xFF800000, 0xFFC00000)
yield from check_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
yield from check_case(dut, 0x00018643, 0x00FA72A4, 0x00FBF8E7)
yield from check_case(dut, 0x001A2239, 0x00FA72A4, 0x010A4A6E)
count = 0
#regression tests
- stimulus_a = [0x22cb525a, 0x40000000, 0x83e73d5c, 0xbf9b1e94, 0x34082401, 0x5e8ef81, 0x5c75da81, 0x2b017]
- stimulus_b = [0xadd79efa, 0xC0000000, 0x1c800000, 0xc038ed3a, 0xb328cd45, 0x114f3db, 0x2f642a39, 0xff3807ab]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- #corner cases
- from itertools import permutations
- stimulus_a = [i[0] for i in permutations([0x80000000, 0x00000000, 0x7f800000, 0xff800000, 0x7fc00000, 0xffc00000], 2)]
- stimulus_b = [i[1] for i in permutations([0x80000000, 0x00000000, 0x7f800000, 0xff800000, 0x7fc00000, 0xffc00000], 2)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- #edge cases
- stimulus_a = [0x80000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x00000000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x80000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x00000000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x7F800000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0xFF800000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x7F800000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0xFF800000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0x7FC00000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_a = [0xFFC00000 for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0x7FC00000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
- count += len(stimulus_a)
- print (count, "vectors passed")
-
- stimulus_b = [0xFFC00000 for i in range(1000)]
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- yield from run_test(dut, stimulus_a, stimulus_b)
+ stimulus_a = [0x80000000, 0x22cb525a, 0x40000000, 0x83e73d5c,
+ 0xbf9b1e94, 0x34082401,
+ 0x5e8ef81, 0x5c75da81, 0x2b017]
+ stimulus_b = [0xff800001, 0xadd79efa, 0xC0000000, 0x1c800000,
+ 0xc038ed3a, 0xb328cd45,
+ 0x114f3db, 0x2f642a39, 0xff3807ab]
+ yield from run_test(dut, stimulus_a, stimulus_b, add)
count += len(stimulus_a)
print (count, "vectors passed")
- #seed(0)
- for i in range(100000):
- stimulus_a = [randint(0, 1<<32) for i in range(1000)]
- stimulus_b = [randint(0, 1<<32) 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=32, single_cycle=True)