1 from nmigen
import Module
, Signal
2 from nmigen
.back
.pysim
import Simulator
, Delay
, Settle
3 from nmigen
.test
.utils
import FHDLTestCase
5 from soc
.decoder
.power_decoder
import (create_pdecode
)
6 from soc
.decoder
.power_enums
import (Function
, InternalOp
,
7 In1Sel
, In2Sel
, In3Sel
,
8 OutSel
, RC
, LdstLen
, CryIn
,
9 single_bit_flags
, Form
, SPR
,
10 get_signal_name
, get_csv
)
11 from soc
.decoder
.power_decoder2
import (PowerDecode2
)
12 from soc
.simulator
.program
import Program
13 from soc
.simulator
.qemu
import run_program
14 from soc
.decoder
.isa
.all
import ISA
15 from soc
.fu
.test
.common
import TestCase
18 class AttnTestCase(FHDLTestCase
):
21 def __init__(self
, name
="general"):
22 super().__init
__(name
)
25 def test_0_attn(self
):
26 """simple test of attn. program is 4 long: should halt at 2nd op
28 lst
= ["addi 6, 0, 0x10",
33 with
Program(lst
) as program
:
34 self
.run_tst_program(program
, [1])
36 def run_tst_program(self
, prog
, initial_regs
=None, initial_sprs
=None,
38 initial_regs
= [0] * 32
39 tc
= TestCase(prog
, self
.test_name
, initial_regs
, initial_sprs
, 0,
41 self
.test_data
.append(tc
)
44 class GeneralTestCases(FHDLTestCase
):
47 def __init__(self
, name
="general"):
48 super().__init
__(name
)
51 @unittest.skip("disable")
53 lst
= ["addi 6, 0, 0x10",
58 with
Program(lst
) as program
:
59 self
.run_tst_program(program
, [1])
61 @unittest.skip("disable")
62 def test_example(self
):
63 lst
= ["addi 1, 0, 0x5678",
67 with
Program(lst
) as program
:
68 self
.run_tst_program(program
, [1, 2, 3, 4])
70 @unittest.skip("disable")
72 lst
= ["addi 1, 0, 0x5678",
77 initial_mem
= {0x1230: (0x5432123412345678, 8),
78 0x1238: (0xabcdef0187654321, 8),
80 with
Program(lst
) as program
:
81 self
.run_tst_program(program
,
85 @unittest.skip("disable")
86 def test_ld_rev_ext(self
):
87 lst
= ["addi 1, 0, 0x5678",
92 with
Program(lst
) as program
:
93 self
.run_tst_program(program
, [1, 2, 3])
95 @unittest.skip("disable")
96 def test_st_rev_ext(self
):
97 lst
= ["addi 1, 0, 0x5678",
102 with
Program(lst
) as program
:
103 self
.run_tst_program(program
, [1, 2, 3])
105 @unittest.skip("disable")
106 def test_ldst_extended(self
):
107 lst
= ["addi 1, 0, 0x5678",
112 with
Program(lst
) as program
:
113 self
.run_tst_program(program
, [1, 2, 3])
115 @unittest.skip("disable")
116 def test_0_ldst_widths(self
):
117 lst
= ["addis 1, 0, 0xdead",
127 with
Program(lst
) as program
:
128 self
.run_tst_program(program
, [1, 2, 3, 4, 5])
130 @unittest.skip("disable")
132 lst
= ["addi 1, 0, 0x1234",
135 "subfic 4, 1, 0x1337",
137 with
Program(lst
) as program
:
138 self
.run_tst_program(program
, [1, 2, 3, 4, 5])
140 @unittest.skip("disable")
141 def test_add_with_carry(self
):
142 lst
= ["addi 1, 0, 5",
149 with
Program(lst
) as program
:
150 self
.run_tst_program(program
, [1, 2, 3])
152 @unittest.skip("disable")
153 def test_addis(self
):
154 lst
= ["addi 1, 0, 0x0FFF",
157 with
Program(lst
) as program
:
158 self
.run_tst_program(program
, [1])
160 @unittest.skip("broken")
161 def test_mulli(self
):
162 lst
= ["addi 1, 0, 3",
165 with
Program(lst
) as program
:
166 self
.run_tst_program(program
, [1])
168 @unittest.skip("disable")
169 def test_2_load_store(self
):
170 lst
= ["addi 1, 0, 0x1004",
176 initial_regs
= [0] * 32
177 initial_regs
[1] = 0x1004
178 initial_regs
[2] = 0x1008
179 initial_regs
[3] = 0x00ee
180 initial_mem
= {0x1000: (0x5432123412345678, 8),
181 0x1008: (0xabcdef0187654321, 8),
182 0x1020: (0x1828384822324252, 8),
184 with
Program(lst
) as program
:
185 self
.run_tst_program(program
, [3,4], initial_mem
)
187 @unittest.skip("disable")
188 def test_3_load_store(self
):
189 lst
= ["addi 1, 0, 0x1004",
194 initial_regs
= [0] * 32
195 initial_regs
[1] = 0x1004
196 initial_regs
[2] = 0x1002
197 initial_regs
[3] = 0x15eb
198 initial_mem
= {0x1000: (0x5432123412345678, 8),
199 0x1008: (0xabcdef0187654321, 8),
200 0x1020: (0x1828384822324252, 8),
202 with
Program(lst
) as program
:
203 self
.run_tst_program(program
, [1,2,3,4], initial_mem
)
207 register unsigned long i asm ("r12");
215 lst
= ["addi 9, 0, 0x10", # i = 16
216 "addi 9,9,-1", # i = i - 1
217 "cmpi 0,1,9,12", # compare 9 to value 0, store in CR2
218 "bc 4,0,-8" # branch if CR2 "test was != 0"
220 with
Program(lst
) as program
:
221 self
.run_tst_program(program
, [9], initial_mem
={})
223 def test_30_addis(self
):
224 lst
= [#"addi 0, 0, 5",
227 with
Program(lst
) as program
:
228 self
.run_tst_program(program
, [0, 12])
230 def run_tst_program(self
, prog
, initial_regs
=None, initial_sprs
=None,
232 initial_regs
= [0] * 32
233 tc
= TestCase(prog
, self
.test_name
, initial_regs
, initial_sprs
, 0,
235 self
.test_data
.append(tc
)
240 def run_tst(self
, generator
, initial_mem
=None, initial_pc
=0):
244 gen
= list(generator
.generate_instructions())
245 insn_code
= generator
.assembly
.splitlines()
246 instructions
= list(zip(gen
, insn_code
))
248 pdecode
= create_pdecode()
249 m
.submodules
.pdecode2
= pdecode2
= PowerDecode2(pdecode
)
251 # place program at requested address
252 gen
= (initial_pc
, gen
)
254 simulator
= ISA(pdecode2
, [0] * 32, {}, 0, initial_mem
, 0,
255 initial_insns
=gen
, respect_pc
=True,
256 disassembly
=insn_code
,
257 initial_pc
=initial_pc
)
264 yield from simulator
.setup_one()
265 except KeyError: # indicates instruction not in imem: stop
268 yield from simulator
.execute_one()
272 sim
.add_process(process
)
273 with sim
.write_vcd("simulator.vcd", "simulator.gtkw",
279 def run_tst_program(self
, prog
, reglist
, initial_mem
=None,
280 extra_break_addr
=None):
282 simulator
= self
.run_tst(prog
, initial_mem
=initial_mem
,
283 initial_pc
=0x20000000)
285 with
run_program(prog
, initial_mem
, extra_break_addr
) as q
:
286 self
.qemu_register_compare(simulator
, q
, reglist
)
287 self
.qemu_mem_compare(simulator
, q
, True)
288 print(simulator
.gpr
.dump())
290 def qemu_mem_compare(self
, sim
, qemu
, check
=True):
291 if False: # disable convenient large interesting debugging memory dump
293 qmemdump
= qemu
.get_mem(addr
, 2048)
294 for i
in range(len(qmemdump
)):
295 s
= hex(int(qmemdump
[i
]))
296 print ("qemu mem %06x %s" % (addr
+i
*8, s
))
297 for k
, v
in sim
.mem
.mem
.items():
298 qmemdump
= qemu
.get_mem(k
*8, 8)
299 s
= hex(int(qmemdump
[0]))[2:]
300 print ("qemu mem %06x %16s" % (k
*8, s
))
301 for k
, v
in sim
.mem
.mem
.items():
302 print ("sim mem %06x %016x" % (k
*8, v
))
305 for k
, v
in sim
.mem
.mem
.items():
306 qmemdump
= qemu
.get_mem(k
*8, 1)
307 self
.assertEqual(int(qmemdump
[0]), v
)
309 def qemu_register_compare(self
, sim
, qemu
, regs
):
310 qpc
, qxer
, qcr
= qemu
.get_pc(), qemu
.get_xer(), qemu
.get_cr()
311 sim_cr
= sim
.cr
.get_range().value
312 sim_pc
= sim
.pc
.CIA
.value
313 sim_xer
= sim
.spr
['XER'].value
314 print("qemu pc", hex(qpc
))
315 print("qemu cr", hex(qcr
))
316 print("qemu xer", bin(qxer
))
317 print("sim nia", hex(sim
.pc
.NIA
.value
))
318 print("sim pc", hex(sim
.pc
.CIA
.value
))
319 print("sim cr", hex(sim_cr
))
320 print("sim xer", hex(sim_xer
))
321 self
.assertEqual(qpc
, sim_pc
)
323 qemu_val
= qemu
.get_register(reg
)
324 sim_val
= sim
.gpr(reg
).value
325 self
.assertEqual(qemu_val
, sim_val
,
326 "expect %x got %x" % (qemu_val
, sim_val
))
327 self
.assertEqual(qcr
, sim_cr
)
330 class DecoderTestCase(DecoderBase
, GeneralTestCases
):
334 if __name__
== "__main__":