1c091e67a4
This obscure functionality was likely only ever used in old MiSoC code, and doesn't justify the added complexity. It was also not provided (and could not be reasonably provided) in SyncFIFOBuffered, which made its utility extremely marginal.
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
import unittest
|
|
from itertools import count
|
|
|
|
from ...compat import *
|
|
from ...compat.genlib.fifo import SyncFIFO
|
|
|
|
from .support import SimCase
|
|
|
|
|
|
class SyncFIFOCase(SimCase, unittest.TestCase):
|
|
class TestBench(Module):
|
|
def __init__(self):
|
|
self.submodules.dut = SyncFIFO(64, 2)
|
|
|
|
self.sync += [
|
|
If(self.dut.we & self.dut.writable,
|
|
self.dut.din[:32].eq(self.dut.din[:32] + 1),
|
|
self.dut.din[32:].eq(self.dut.din[32:] + 2)
|
|
)
|
|
]
|
|
|
|
def test_run_sequence(self):
|
|
seq = list(range(20))
|
|
def gen():
|
|
for cycle in count():
|
|
# fire re and we at "random"
|
|
yield self.tb.dut.we.eq(cycle % 2 == 0)
|
|
yield self.tb.dut.re.eq(cycle % 3 == 0)
|
|
# the output if valid must be correct
|
|
if (yield self.tb.dut.readable) and (yield self.tb.dut.re):
|
|
try:
|
|
i = seq.pop(0)
|
|
except IndexError:
|
|
break
|
|
self.assertEqual((yield self.tb.dut.dout[:32]), i)
|
|
self.assertEqual((yield self.tb.dut.dout[32:]), i*2)
|
|
yield
|
|
self.run_with(gen())
|