-import sys
-import subprocess
-from random import randint
-from random import seed
-from sfpy import Float32
+from operator import add
from nmigen import Module, Signal
from nmigen.compat.sim import run_simulation
from nmigen_add_experiment import FPADD
-def get_mantissa(x):
- return 0x7fffff & x
-
-def get_exponent(x):
- return ((x & 0x7f800000) >> 23) - 127
-
-def get_sign(x):
- return ((x & 0x80000000) >> 31)
-
-def is_nan(x):
- return get_exponent(x) == 128 and get_mantissa(x) != 0
-
-def is_inf(x):
- return get_exponent(x) == 128 and get_mantissa(x) == 0
-
-def is_pos_inf(x):
- return is_inf(x) and not get_sign(x)
-
-def is_neg_inf(x):
- return is_inf(x) and get_sign(x)
-
-def match(x, y):
- return (
- (is_pos_inf(x) and is_pos_inf(y)) or
- (is_neg_inf(x) and is_neg_inf(y)) or
- (is_nan(x) and is_nan(y)) or
- (x == y)
- )
-
-def get_case(dut, a, b):
- yield dut.in_a.v.eq(a)
- yield dut.in_a.stb.eq(1)
- yield
- yield
- a_ack = (yield dut.in_a.ack)
- assert a_ack == 0
- yield dut.in_b.v.eq(b)
- yield dut.in_b.stb.eq(1)
- b_ack = (yield dut.in_b.ack)
- assert b_ack == 0
-
- while True:
- yield
- out_z_stb = (yield dut.out_z.stb)
- if not out_z_stb:
- continue
- yield dut.in_a.stb.eq(0)
- yield dut.in_b.stb.eq(0)
- yield dut.out_z.ack.eq(1)
- yield
- yield dut.out_z.ack.eq(0)
- yield
- yield
- break
-
- out_z = yield dut.out_z.v
- return out_z
-
-def check_case(dut, a, b, z):
- out_z = yield from get_case(dut, a, b)
- assert out_z == z, "Output z 0x%x not equal to expected 0x%x" % (out_z, z)
-
-
-def run_test(dut, stimulus_a, stimulus_b):
-
- expected_responses = []
- actual_responses = []
- for a, b in zip(stimulus_a, stimulus_b):
- af = Float32.from_bits(a)
- bf = Float32.from_bits(b)
- z = af + bf
- expected_responses.append(z.get_bits())
- #print (af, bf, z)
- actual = yield from get_case(dut, a, b)
- actual_responses.append(actual)
-
- if len(actual_responses) < len(expected_responses):
- print ("Fail ... not enough results")
- exit(0)
-
- for expected, actual, a, b in zip(expected_responses, actual_responses,
- stimulus_a, stimulus_b):
- passed = match(expected, actual)
-
- if not passed:
-
- print ("Fail ... expected:", hex(expected), "actual:", hex(actual))
-
- print (hex(a))
- print ("a mantissa:", a & 0x7fffff)
- print ("a exponent:", ((a & 0x7f800000) >> 23) - 127)
- print ("a sign:", ((a & 0x80000000) >> 31))
-
- print (hex(b))
- print ("b mantissa:", b & 0x7fffff)
- print ("b exponent:", ((b & 0x7f800000) >> 23) - 127)
- print ("b sign:", ((b & 0x80000000) >> 31))
-
- print (hex(expected))
- print ("expected mantissa:", expected & 0x7fffff)
- print ("expected exponent:", ((expected & 0x7f800000) >> 23) - 127)
- print ("expected sign:", ((expected & 0x80000000) >> 31))
-
- print (hex(actual))
- print ("actual mantissa:", actual & 0x7fffff)
- print ("actual exponent:", ((actual & 0x7f800000) >> 23) - 127)
- print ("actual sign:", ((actual & 0x80000000) >> 31))
-
- sys.exit(0)
+from unit_test_single import (get_mantissa, get_exponent, get_sign, is_nan,
+ is_inf, is_pos_inf, is_neg_inf,
+ match, get_rs_case, check_rs_case, run_test,
+ run_edge_cases, run_corner_cases)
def testbench(dut):
- 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, 0x447A0000, 0x4488B000, 0x4502D800)
- yield from check_case(dut, 0x463B800A, 0x42BA8A3D, 0x463CF51E)
- yield from check_case(dut, 0x42BA8A3D, 0x463B800A, 0x463CF51E)
- yield from check_case(dut, 0x463B800A, 0xC2BA8A3D, 0x463A0AF6)
- 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)
- yield from check_case(dut, 0x3F7FFFFE, 0x3F7FFFFE, 0x3FFFFFFE)
- yield from check_case(dut, 0x7EFFFFEE, 0x7EFFFFEE, 0x7F7FFFEE)
- yield from check_case(dut, 0x7F7FFFEE, 0xFEFFFFEE, 0x7EFFFFEE)
- yield from check_case(dut, 0x7F7FFFEE, 0x756CA884, 0x7F7FFFFD)
- yield from check_case(dut, 0x7F7FFFEE, 0x758A0CF8, 0x7F7FFFFF)
- yield from check_case(dut, 0x42500000, 0x51A7A358, 0x51A7A358)
- yield from check_case(dut, 0x51A7A358, 0x42500000, 0x51A7A358)
- yield from check_case(dut, 0x4E5693A4, 0x42500000, 0x4E5693A5)
- yield from check_case(dut, 0x42500000, 0x4E5693A4, 0x4E5693A5)
- #yield from check_case(dut, 1, 0, 1)
- #yield from check_case(dut, 1, 1, 1)
+ yield from check_rs_case(dut, 0x36093399, 0x7f6a12f1, 0x7f6a12f1)
+ yield from check_rs_case(dut, 0x006CE3EE, 0x806CE3EC, 0x00000002)
+ yield from check_rs_case(dut, 0x00000047, 0x80000048, 0x80000001)
+ yield from check_rs_case(dut, 0x000116C2, 0x8001170A, 0x80000048)
+ yield from check_rs_case(dut, 0x7ed01f25, 0xff559e2c, 0xfedb1d33)
+ yield from check_rs_case(dut, 0, 0, 0)
+ yield from check_rs_case(dut, 0xFFFFFFFF, 0xC63B800A, 0x7FC00000)
+ yield from check_rs_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+ #yield from check_rs_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+ yield from check_rs_case(dut, 0x7F800000, 0xFF800000, 0x7FC00000)
+ yield from check_rs_case(dut, 0x42540000, 0xC2540000, 0x00000000)
+ yield from check_rs_case(dut, 0xC2540000, 0x42540000, 0x00000000)
+ yield from check_rs_case(dut, 0xfe34f995, 0xff5d59ad, 0xff800000)
+ yield from check_rs_case(dut, 0x82471f51, 0x243985f, 0x801c3790)
+ yield from check_rs_case(dut, 0x40000000, 0xc0000000, 0x00000000)
+ yield from check_rs_case(dut, 0x3F800000, 0x40000000, 0x40400000)
+ yield from check_rs_case(dut, 0x40000000, 0x3F800000, 0x40400000)
+ yield from check_rs_case(dut, 0x447A0000, 0x4488B000, 0x4502D800)
+ yield from check_rs_case(dut, 0x463B800A, 0x42BA8A3D, 0x463CF51E)
+ yield from check_rs_case(dut, 0x42BA8A3D, 0x463B800A, 0x463CF51E)
+ yield from check_rs_case(dut, 0x463B800A, 0xC2BA8A3D, 0x463A0AF6)
+ yield from check_rs_case(dut, 0xC2BA8A3D, 0x463B800A, 0x463A0AF6)
+ yield from check_rs_case(dut, 0xC63B800A, 0x42BA8A3D, 0xC63A0AF6)
+ yield from check_rs_case(dut, 0x42BA8A3D, 0xC63B800A, 0xC63A0AF6)
+ yield from check_rs_case(dut, 0x7F800000, 0x00000000, 0x7F800000)
+ yield from check_rs_case(dut, 0x00000000, 0x7F800000, 0x7F800000)
+ yield from check_rs_case(dut, 0xFF800000, 0x00000000, 0xFF800000)
+ yield from check_rs_case(dut, 0x00000000, 0xFF800000, 0xFF800000)
+ yield from check_rs_case(dut, 0x7F800000, 0x7F800000, 0x7F800000)
+ yield from check_rs_case(dut, 0xFF800000, 0xFF800000, 0xFF800000)
+ yield from check_rs_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+ yield from check_rs_case(dut, 0x00018643, 0x00FA72A4, 0x00FBF8E7)
+ yield from check_rs_case(dut, 0x001A2239, 0x00FA72A4, 0x010A4A6E)
+ yield from check_rs_case(dut, 0x3F7FFFFE, 0x3F7FFFFE, 0x3FFFFFFE)
+ yield from check_rs_case(dut, 0x7EFFFFEE, 0x7EFFFFEE, 0x7F7FFFEE)
+ yield from check_rs_case(dut, 0x7F7FFFEE, 0xFEFFFFEE, 0x7EFFFFEE)
+ yield from check_rs_case(dut, 0x7F7FFFEE, 0x756CA884, 0x7F7FFFFD)
+ yield from check_rs_case(dut, 0x7F7FFFEE, 0x758A0CF8, 0x7F7FFFFF)
+ yield from check_rs_case(dut, 0x42500000, 0x51A7A358, 0x51A7A358)
+ yield from check_rs_case(dut, 0x51A7A358, 0x42500000, 0x51A7A358)
+ yield from check_rs_case(dut, 0x4E5693A4, 0x42500000, 0x4E5693A5)
+ yield from check_rs_case(dut, 0x42500000, 0x4E5693A4, 0x4E5693A5)
+ #yield from check_rs_case(dut, 1, 0, 1)
+ #yield from check_rs_case(dut, 1, 1, 1)
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, get_rs_case)
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, get_rs_case)
+ yield from run_edge_cases(dut, count, add, get_rs_case)
if __name__ == '__main__':
- dut = FPADD(width=32, single_cycle=True)
+ dut = FPADD(width=32, id_wid=5, single_cycle=True)
run_simulation(dut, testbench(dut), vcd_name="test_add.vcd")
projects / ieee754fpu.git / blobdiff