def test_fsm0(self):
word_bytes = 2
f_len = (1, 1)
streams = [
HStream(Bits(8), frame_len=f_len, start_offsets=[1]),
]
out_offset = 0
sju = FrameAlignmentUtils(word_bytes, out_offset)
input_B_dst = sju.resolve_input_bytes_destinations(streams)
tt = input_B_dst_to_fsm(word_bytes, len(streams), input_B_dst)
def st(d):
return StateTransItem.from_dict(tt, d)
ref = [
[
st({
'st': '0->0',
'in': [[{
'keep': [0, 1],
'relict': 0,
'last': 1
}]],
'in.keep_mask': [[[0, 0]]],
'in.rd': [1],
'out.keep': [1, 0],
'out.mux': [(0, 0, 1), None],
'out.last': 1
})
],
]
self.assertSequenceEqual(tt.state_trans, ref)
def test_fsm_1x3B_on_2B_offset_1(self):
word_bytes = 2
streams = [
HStream(Bits(8 * 3), (1, 1), [1]),
]
out_offset = 0
sju = FrameAlignmentUtils(word_bytes, out_offset)
input_B_dst = sju.resolve_input_bytes_destinations(streams)
tt = input_B_dst_to_fsm(word_bytes, len(streams), input_B_dst)
def st(d):
return StateTransItem.from_dict(tt, d)
ref = [[
st({
'st':
'0->0',
'in': [[{
'keep': [0, 1],
'relict': 1,
'last': 1
}, {
'keep': ['X', 'X'],
'relict': 'X',
'last': 'X'
}]],
'in.keep_mask': [[[0, 0], [1, 1]]],
'in.rd': [1],
'out.keep': [1, 0],
'out.mux': [(0, 0, 1), None],
'out.last':
1
}),
st({
'st':
'0->0',
'in': [[{
'keep': [0, 1],
'relict': 'X',
'last': 0
}, {
'keep': [1, 1],
'relict': 'X',
'last': 1
}]],
'in.keep_mask': [[[0, 0], [0, 1]]],
'in.rd': [1],
'out.keep': [1, 1],
'out.mux': [(0, 0, 1), (0, 1, 0)],
'out.last':
0
})
]]
self.assertSequenceEqual(tt.state_trans, ref)
def _declr(self):
assert self.USE_KEEP
t = self.T
assert isinstance(t, HStruct)
word_bytes = self.word_bytes = self.DATA_WIDTH // 8
input_cnt = self.input_cnt = len(t.fields)
streams = [f.dtype for f in t.fields]
fju = FrameAlignmentUtils(word_bytes, self.OUT_OFFSET)
input_B_dst = fju.resolve_input_bytes_destinations(
streams)
self.state_trans_table = input_B_dst_to_fsm(
word_bytes, input_cnt, input_B_dst)
addClkRstn(self)
with self._paramsShared():
self.dataOut = AxiStream()._m()
self.dataIn = HObjList(AxiStream() for _ in range(self.input_cnt))
