1 from nmigen
import Module
, Signal
2 from nmigen
.back
.pysim
import Simulator
, Delay
3 from nmigen
.test
.utils
import FHDLTestCase
4 from nmigen
.cli
import rtlil
9 from power_decoder
import (PowerDecoder
, pdecode
)
10 from power_enums
import (Function
, InternalOp
, In1Sel
, In2Sel
, In3Sel
,
11 OutSel
, RC
, LdstLen
, CryIn
, single_bit_flags
,
12 get_signal_name
, get_csv
)
15 class DecoderTestCase(FHDLTestCase
):
17 def run_tst(self
, bitsel
, csvname
, minor
=None, suffix
=None, opint
=True):
21 function_unit
= Signal(Function
)
22 internal_op
= Signal(InternalOp
)
23 in1_sel
= Signal(In1Sel
)
24 in2_sel
= Signal(In2Sel
)
25 in3_sel
= Signal(In3Sel
)
26 out_sel
= Signal(OutSel
)
28 ldst_len
= Signal(LdstLen
)
29 cry_in
= Signal(CryIn
)
31 # opcodes = get_csv(csvname)
32 # m.submodules.dut = dut = PowerDecoder(32, opcodes, bitsel=bitsel,
33 # opint=opint, suffix=suffix)
34 m
.submodules
.dut
= dut
= pdecode
35 comb
+= [dut
.opcode_in
.eq(opcode
),
36 function_unit
.eq(dut
.op
.function_unit
),
37 in1_sel
.eq(dut
.op
.in1_sel
),
38 in2_sel
.eq(dut
.op
.in2_sel
),
39 in3_sel
.eq(dut
.op
.in3_sel
),
40 out_sel
.eq(dut
.op
.out_sel
),
41 rc_sel
.eq(dut
.op
.rc_sel
),
42 ldst_len
.eq(dut
.op
.ldst_len
),
43 cry_in
.eq(dut
.op
.cry_in
),
44 internal_op
.eq(dut
.op
.internal_op
)]
47 opcodes
= get_csv(csvname
)
54 if not opint
: # HACK: convert 001---10 to 0b00100010
55 op
= "0b" + op
.replace('-', '0')
56 print ("opint", opint
, row
['opcode'], op
)
59 yield opcode
[bitsel
[0]:bitsel
[1]].eq(int(op
, 0))
63 yield opcode
[minorbits
[0]:minorbits
[1]].eq(minor
[0])
65 signals
= [(function_unit
, Function
, 'unit'),
66 (internal_op
, InternalOp
, 'internal op'),
67 (in1_sel
, In1Sel
, 'in1'),
68 (in2_sel
, In2Sel
, 'in2'),
69 (in3_sel
, In3Sel
, 'in3'),
70 (out_sel
, OutSel
, 'out'),
72 (cry_in
, CryIn
, 'cry in'),
73 (ldst_len
, LdstLen
, 'ldst len')]
74 for sig
, enm
, name
in signals
:
76 expected
= enm
[row
[name
]]
77 msg
= f
"{sig.name} == {enm(result)}, expected: {expected}"
78 self
.assertEqual(enm(result
), expected
, msg
)
79 for bit
in single_bit_flags
:
80 sig
= getattr(dut
.op
, get_signal_name(bit
))
82 expected
= int(row
[bit
])
83 msg
= f
"{sig.name} == {result}, expected: {expected}"
84 self
.assertEqual(expected
, result
, msg
)
85 sim
.add_process(process
)
86 prefix
= os
.path
.splitext(csvname
)[0]
87 with sim
.write_vcd("%s.vcd" % prefix
, "%s.gtkw" % prefix
, traces
=[
88 opcode
, function_unit
, internal_op
,
92 def generate_ilang(self
):
93 vl
= rtlil
.convert(pdecode
, ports
=pdecode
.ports())
94 with
open("decoder.il", "w") as f
:
98 self
.run_tst((26, 32), "major.csv")
101 def test_minor_19(self
):
102 self
.run_tst((1, 11), "minor_19.csv", minor
=(19, (26, 32)),
105 # def test_minor_19_00000(self):
106 # self.run_tst((1, 11), "minor_19_00000.csv")
108 def test_minor_30(self
):
109 self
.run_tst((1, 5), "minor_30.csv", minor
=(30, (26, 32)))
111 def test_minor_31(self
):
112 self
.run_tst((1, 11), "minor_31.csv", minor
=(31, (26, 32)))
114 def test_minor_58(self
):
115 self
.run_tst((0, 2), "minor_58.csv", minor
=(58, (26, 32)))
117 def test_minor_62(self
):
118 self
.run_tst((0, 2), "minor_62.csv", minor
=(62, (26, 32)))
121 # #def test_minor_31_prefix(self):
122 # # self.run_tst(10, "minor_31.csv", suffix=(5, 10))
124 # def test_extra(self):
125 # self.run_tst(32, "extra.csv", opint=False)
126 # self.generate_ilang(32, "extra.csv", opint=False)
129 if __name__
== "__main__":