08a704dc3165dfe746dc37b543118c93d8a88187
1 from nmigen
import Module
, Signal
2 from nmigen
.back
.pysim
import Simulator
, Delay
, Settle
3 from nmigen
.test
.utils
import FHDLTestCase
4 from nmigen
.cli
import rtlil
6 from soc
.decoder
.isa
.caller
import ISACaller
, special_sprs
7 from soc
.decoder
.power_decoder
import (create_pdecode
)
8 from soc
.decoder
.power_decoder2
import (PowerDecode2
)
9 from soc
.decoder
.power_enums
import (XER_bits
, Function
, InternalOp
)
10 from soc
.decoder
.selectable_int
import SelectableInt
11 from soc
.simulator
.program
import Program
12 from soc
.decoder
.isa
.all
import ISA
14 from soc
.fu
.alu
.test
.test_pipe_caller
import TestCase
, ALUTestCase
, test_data
15 from soc
.experiment
.compalu_multi
import find_ok
# hack
18 def set_cu_input(cu
, idx
, data
):
19 rdop
= cu
.get_in_name(idx
)
20 yield cu
.src_i
[idx
].eq(data
)
22 rd_rel_o
= yield cu
.rd
.rel
[idx
]
23 print ("rd_rel %d wait HI" % idx
, rd_rel_o
, rdop
, hex(data
))
27 yield cu
.rd
.go
[idx
].eq(1)
30 rd_rel_o
= yield cu
.rd
.rel
[idx
]
33 print ("rd_rel %d wait HI" % idx
, rd_rel_o
)
35 yield cu
.rd
.go
[idx
].eq(0)
36 yield cu
.src_i
[idx
].eq(0)
39 def get_cu_output(cu
, idx
, code
):
40 wrmask
= yield cu
.wrmask
41 wrop
= cu
.get_out_name(idx
)
42 wrok
= cu
.get_out(idx
)
43 fname
= find_ok(wrok
.fields
)
44 wrok
= yield getattr(wrok
, fname
)
45 print ("wr_rel mask", repr(code
), idx
, wrop
, bin(wrmask
), fname
, wrok
)
46 assert wrmask
& (1<<idx
), \
47 "get_cu_output '%s': mask bit %d not set\n" \
48 "write-operand '%s' Data.ok likely not set (%s)" \
49 % (code
, idx
, wrop
, hex(wrok
))
51 wr_relall_o
= yield cu
.wr
.rel
52 wr_rel_o
= yield cu
.wr
.rel
[idx
]
53 print ("wr_rel %d wait" % idx
, hex(wr_relall_o
), wr_rel_o
)
57 yield cu
.wr
.go
[idx
].eq(1)
59 result
= yield cu
.dest
[idx
]
61 yield cu
.wr
.go
[idx
].eq(0)
62 print ("result", repr(code
), idx
, wrop
, wrok
, hex(result
))
66 def set_cu_inputs(cu
, inp
):
67 for idx
, data
in inp
.items():
68 yield from set_cu_input(cu
, idx
, data
)
71 def set_operand(cu
, dec2
, sim
):
72 yield from cu
.oper_i
.eq_from_execute1(dec2
.e
)
73 yield cu
.issue_i
.eq(1)
75 yield cu
.issue_i
.eq(0)
79 def get_cu_outputs(cu
, code
):
81 for i
in range(cu
.n_dst
):
82 wr_rel_o
= yield cu
.wr
.rel
[i
]
84 result
= yield from get_cu_output(cu
, i
, code
)
85 wrop
= cu
.get_out_name(i
)
86 print ("output", i
, wrop
, hex(result
))
91 def get_inp_indexed(cu
, inp
):
93 for i
in range(cu
.n_src
):
94 wrop
= cu
.get_in_name(i
)
99 def get_cu_rd_mask(n_src
, inp
):
101 for i
in range(n_src
):
107 class TestRunner(FHDLTestCase
):
108 def __init__(self
, test_data
, fukls
, iodef
, funit
):
109 super().__init
__("run_all")
110 self
.test_data
= test_data
118 instruction
= Signal(32)
120 pdecode
= create_pdecode()
122 m
.submodules
.pdecode2
= pdecode2
= PowerDecode2(pdecode
)
123 m
.submodules
.cu
= cu
= self
.fukls()
125 comb
+= pdecode2
.dec
.raw_opcode_in
.eq(instruction
)
131 yield cu
.issue_i
.eq(0)
134 for test
in self
.test_data
:
136 program
= test
.program
137 self
.subTest(test
.name
)
138 sim
= ISA(pdecode2
, test
.regs
, test
.sprs
, 0)
139 gen
= program
.generate_instructions()
140 instructions
= list(zip(gen
, program
.assembly
.splitlines()))
142 index
= sim
.pc
.CIA
.value
//4
143 while index
< len(instructions
):
144 ins
, code
= instructions
[index
]
146 print("0x{:X}".format(ins
& 0xffffffff))
149 # ask the decoder to decode this binary data (endian'd)
150 yield pdecode2
.dec
.bigendian
.eq(0) # little / big?
151 yield instruction
.eq(ins
) # raw binary instr.
153 fn_unit
= yield pdecode2
.e
.fn_unit
154 fuval
= self
.funit
.value
155 self
.assertEqual(fn_unit
& fuval
, fuval
)
157 # set operand and get inputs
158 yield from set_operand(cu
, pdecode2
, sim
)
159 iname
= yield from self
.iodef
.get_cu_inputs(pdecode2
, sim
)
160 inp
= get_inp_indexed(cu
, iname
)
162 # reset read-operand mask
163 rdmask
= get_cu_rd_mask(cu
.n_src
, inp
)
164 yield cu
.rdmaskn
.eq(~rdmask
)
166 # reset write-operand mask
167 for idx
in range(cu
.n_dst
):
168 wrok
= cu
.get_out(idx
)
169 fname
= find_ok(wrok
.fields
)
170 yield getattr(wrok
, fname
).eq(0)
172 # first set inputs to zero
173 for idx
in range(cu
.n_src
):
174 cu_in
= cu
.get_in(idx
)
178 rd_rel_o
= yield cu
.rd
.rel
179 wr_rel_o
= yield cu
.wr
.rel
180 print ("before inputs, rd_rel, wr_rel: ",
181 bin(rd_rel_o
), bin(wr_rel_o
))
182 yield from set_cu_inputs(cu
, inp
)
184 rd_rel_o
= yield cu
.rd
.rel
185 wr_rel_o
= yield cu
.wr
.rel
186 wrmask
= yield cu
.wrmask
187 print ("after inputs, rd_rel, wr_rel, wrmask: ",
188 bin(rd_rel_o
), bin(wr_rel_o
), bin(wrmask
))
190 # call simulated operation
191 opname
= code
.split(' ')[0]
192 yield from sim
.call(opname
)
193 index
= sim
.pc
.CIA
.value
//4
195 # get all outputs (one by one, just "because")
196 res
= yield from get_cu_outputs(cu
, code
)
198 yield from self
.iodef
.check_cu_outputs(res
, pdecode2
,
201 sim
.add_sync_process(process
)
202 with sim
.write_vcd("simulator.vcd", "simulator.gtkw",