3 * https://bugs.libre-soc.org/show_bug.cgi?id=361
6 from soc
.decoder
.power_enums
import XER_bits
, CryIn
, spr_dict
7 from soc
.regfile
.util
import fast_reg_to_spr
# HACK!
8 from soc
.regfile
.regfiles
import FastRegs
12 def __init__(self
, program
, name
, regs
=None, sprs
=None, cr
=0, mem
=None,
15 self
.program
= program
32 def get_sim_fast_reg(res
, sim
, dec2
, reg
, name
):
33 spr_sel
= fast_reg_to_spr(reg
)
34 spr_data
= sim
.spr
[spr_sel
].value
37 def get_sim_cia(res
, sim
, dec2
):
38 res
['cia'] = sim
.pc
.CIA
.value
40 def get_sim_msr(res
, sim
, dec2
):
41 res
['msr'] = sim
.msr
.value
43 def get_sim_fast_spr1(res
, sim
, dec2
):
44 fast1_en
= yield dec2
.e
.read_fast1
.ok
46 fast1_sel
= yield dec2
.e
.read_fast1
.data
47 spr1_sel
= fast_reg_to_spr(fast1_sel
)
48 spr1_data
= sim
.spr
[spr1_sel
].value
49 res
['spr1'] = spr1_data
51 def get_sim_fast_spr2(res
, sim
, dec2
):
52 fast2_en
= yield dec2
.e
.read_fast2
.ok
54 fast2_sel
= yield dec2
.e
.read_fast2
.data
55 spr2_sel
= fast_reg_to_spr(fast2_sel
)
56 spr2_data
= sim
.spr
[spr2_sel
].value
57 res
['spr2'] = spr2_data
59 def get_sim_cr_a(res
, sim
, dec2
):
60 cridx_ok
= yield dec2
.e
.read_cr1
.ok
62 cridx
= yield dec2
.e
.read_cr1
.data
63 res
['cr_a'] = sim
.crl
[cridx
].get_range().value
65 def get_sim_int_ra(res
, sim
, dec2
):
66 # TODO: immediate RA zero
67 reg1_ok
= yield dec2
.e
.read_reg1
.ok
69 data1
= yield dec2
.e
.read_reg1
.data
70 res
['ra'] = sim
.gpr(data1
).value
72 def get_sim_int_rb(res
, sim
, dec2
):
73 reg2_ok
= yield dec2
.e
.read_reg2
.ok
75 data
= yield dec2
.e
.read_reg2
.data
76 res
['rb'] = sim
.gpr(data
).value
78 def get_sim_int_rc(res
, sim
, dec2
):
79 reg3_ok
= yield dec2
.e
.read_reg3
.ok
81 data
= yield dec2
.e
.read_reg3
.data
82 res
['rc'] = sim
.gpr(data
).value
84 def get_rd_sim_xer_ca(res
, sim
, dec2
):
85 cry_in
= yield dec2
.e
.input_carry
86 if cry_in
== CryIn
.CA
.value
:
87 expected_carry
= 1 if sim
.spr
['XER'][XER_bits
['CA']] else 0
88 expected_carry32
= 1 if sim
.spr
['XER'][XER_bits
['CA32']] else 0
89 res
['xer_ca'] = expected_carry |
(expected_carry32
<< 1)
91 def set_int_ra(alu
, dec2
, inp
):
92 # TODO: immediate RA zero.
94 yield alu
.p
.data_i
.ra
.eq(inp
['ra'])
96 yield alu
.p
.data_i
.ra
.eq(0)
98 def set_int_rb(alu
, dec2
, inp
):
99 yield alu
.p
.data_i
.rb
.eq(0)
101 yield alu
.p
.data_i
.rb
.eq(inp
['rb'])
102 # If there's an immediate, set the B operand to that
103 imm_ok
= yield dec2
.e
.imm_data
.imm_ok
105 data2
= yield dec2
.e
.imm_data
.imm
106 yield alu
.p
.data_i
.rb
.eq(data2
)
108 def set_int_rc(alu
, dec2
, inp
):
110 yield alu
.p
.data_i
.rc
.eq(inp
['rc'])
112 yield alu
.p
.data_i
.rc
.eq(0)
114 def set_xer_ca(alu
, dec2
, inp
):
116 yield alu
.p
.data_i
.xer_ca
.eq(inp
['xer_ca'])
117 print ("extra inputs: CA/32", bin(inp
['xer_ca']))
119 def set_xer_ov(alu
, dec2
, inp
):
121 yield alu
.p
.data_i
.xer_ov
.eq(inp
['xer_ov'])
122 print ("extra inputs: OV/32", bin(inp
['xer_ov']))
124 def set_xer_so(alu
, dec2
, inp
):
127 print ("extra inputs: so", so
)
128 yield alu
.p
.data_i
.xer_so
.eq(so
)
130 def set_msr(alu
, dec2
, inp
):
132 yield alu
.p
.data_i
.msr
.eq(inp
['msr'])
134 def set_cia(alu
, dec2
, inp
):
136 yield alu
.p
.data_i
.cia
.eq(inp
['cia'])
138 def set_fast_spr1(alu
, dec2
, inp
):
140 yield alu
.p
.data_i
.spr1
.eq(inp
['spr1'])
142 def set_fast_spr2(alu
, dec2
, inp
):
144 yield alu
.p
.data_i
.spr2
.eq(inp
['spr2'])
146 def set_cr_a(alu
, dec2
, inp
):
148 yield alu
.p
.data_i
.cr_a
.eq(inp
['cr_a'])
150 def set_cr_b(alu
, dec2
, inp
):
152 yield alu
.p
.data_i
.cr_b
.eq(inp
['cr_b'])
154 def set_cr_c(alu
, dec2
, inp
):
156 yield alu
.p
.data_i
.cr_c
.eq(inp
['cr_c'])
158 def set_full_cr(alu
, dec2
, inp
):
160 yield alu
.p
.data_i
.full_cr
.eq(inp
['full_cr'])
162 yield alu
.p
.data_i
.full_cr
.eq(0)
164 def get_fast_spr1(res
, alu
, dec2
):
165 spr1_valid
= yield alu
.n
.data_o
.spr1
.ok
167 res
['spr1'] = yield alu
.n
.data_o
.spr1
.data
169 def get_fast_spr2(res
, alu
, dec2
):
170 spr2_valid
= yield alu
.n
.data_o
.spr2
.ok
172 res
['spr2'] = yield alu
.n
.data_o
.spr2
.data
174 def get_cia(res
, alu
, dec2
):
175 res
['cia'] = yield alu
.p
.data_i
.cia
177 def get_nia(res
, alu
, dec2
):
178 nia_valid
= yield alu
.n
.data_o
.nia
.ok
180 res
['nia'] = yield alu
.n
.data_o
.nia
.data
182 def get_msr(res
, alu
, dec2
):
183 msr_valid
= yield alu
.n
.data_o
.msr
.ok
185 res
['msr'] = yield alu
.n
.data_o
.msr
.data
187 def get_int_o1(res
, alu
, dec2
):
188 out_reg_valid
= yield dec2
.e
.write_ea
.ok
190 res
['o1'] = yield alu
.n
.data_o
.o1
.data
192 def get_int_o(res
, alu
, dec2
):
193 out_reg_valid
= yield dec2
.e
.write_reg
.ok
195 res
['o'] = yield alu
.n
.data_o
.o
.data
197 def get_cr_a(res
, alu
, dec2
):
198 cridx_ok
= yield dec2
.e
.write_cr
.ok
200 res
['cr_a'] = yield alu
.n
.data_o
.cr0
.data
202 def get_xer_so(res
, alu
, dec2
):
203 oe
= yield dec2
.e
.oe
.oe
204 oe_ok
= yield dec2
.e
.oe
.ok
206 res
['xer_so'] = yield alu
.n
.data_o
.xer_so
.data
[0]
208 def get_xer_ov(res
, alu
, dec2
):
209 oe
= yield dec2
.e
.oe
.oe
210 oe_ok
= yield dec2
.e
.oe
.ok
212 res
['xer_ov'] = yield alu
.n
.data_o
.xer_ov
.data
214 def get_xer_ca(res
, alu
, dec2
):
215 cry_out
= yield dec2
.e
.output_carry
217 res
['xer_ca'] = yield alu
.n
.data_o
.xer_ca
.data
219 def get_sim_int_o(res
, sim
, dec2
):
220 out_reg_valid
= yield dec2
.e
.write_reg
.ok
222 write_reg_idx
= yield dec2
.e
.write_reg
.data
223 res
['o'] = sim
.gpr(write_reg_idx
).value
225 def get_sim_int_o1(res
, sim
, dec2
):
226 out_reg_valid
= yield dec2
.e
.write_ea
.ok
228 write_reg_idx
= yield dec2
.e
.write_ea
.data
229 res
['o1'] = sim
.gpr(write_reg_idx
).value
231 def get_wr_sim_cr_a(res
, sim
, dec2
):
232 cridx_ok
= yield dec2
.e
.write_cr
.ok
234 cridx
= yield dec2
.e
.write_cr
.data
235 res
['cr_a'] = sim
.crl
[cridx
].get_range().value
237 def get_wr_fast_spr2(res
, sim
, dec2
):
238 ok
= yield dec2
.e
.write_fast2
.ok
240 spr_num
= yield dec2
.e
.write_fast2
.data
241 spr_num
= fast_reg_to_spr(spr_num
)
242 spr_name
= spr_dict
[spr_num
]
243 res
['spr2'] = sim
.spr
[spr_name
]
245 def get_wr_fast_spr1(res
, sim
, dec2
):
246 ok
= yield dec2
.e
.write_fast1
.ok
248 spr_num
= yield dec2
.e
.write_fast1
.data
249 spr_num
= fast_reg_to_spr(spr_num
)
250 spr_name
= spr_dict
[spr_num
]
251 res
['spr1'] = sim
.spr
[spr_name
]
253 def get_wr_sim_xer_ca(res
, sim
, dec2
):
254 cry_out
= yield dec2
.e
.output_carry
256 expected_carry
= 1 if sim
.spr
['XER'][XER_bits
['CA']] else 0
257 expected_carry32
= 1 if sim
.spr
['XER'][XER_bits
['CA32']] else 0
258 res
['xer_ca'] = expected_carry |
(expected_carry32
<< 1)
260 def get_sim_xer_ov(res
, sim
, dec2
):
261 oe
= yield dec2
.e
.oe
.oe
262 oe_ok
= yield dec2
.e
.oe
.ok
264 expected_ov
= 1 if sim
.spr
['XER'][XER_bits
['OV']] else 0
265 expected_ov32
= 1 if sim
.spr
['XER'][XER_bits
['OV32']] else 0
266 res
['xer_ov'] = expected_ov |
(expected_ov32
<< 1)
268 def get_sim_xer_so(res
, sim
, dec2
):
269 oe
= yield dec2
.e
.oe
.oe
270 oe_ok
= yield dec2
.e
.oe
.ok
272 res
['xer_so'] = 1 if sim
.spr
['XER'][XER_bits
['SO']] else 0
274 def check_fast_spr1(dut
, res
, sim_o
, msg
):
276 expected
= sim_o
['fast1']
277 alu_out
= res
['fast1']
278 print(f
"expected {expected:x}, actual: {alu_out:x}")
279 dut
.assertEqual(expected
, alu_out
, msg
)
281 def check_int_o1(dut
, res
, sim_o
, msg
):
283 expected
= sim_o
['o1']
285 print(f
"expected {expected:x}, actual: {alu_out:x}")
286 dut
.assertEqual(expected
, alu_out
, msg
)
288 def check_int_o(dut
, res
, sim_o
, msg
):
290 expected
= sim_o
['o']
292 print(f
"expected {expected:x}, actual: {alu_out:x}")
293 dut
.assertEqual(expected
, alu_out
, msg
)
295 def check_cr_a(dut
, res
, sim_o
, msg
):
297 cr_expected
= sim_o
['cr_a']
298 cr_actual
= res
['cr_a']
299 print ("CR", cr_expected
, cr_actual
)
300 dut
.assertEqual(cr_expected
, cr_actual
, msg
)
302 def check_xer_ca(dut
, res
, sim_o
, msg
):
304 ca_expected
= sim_o
['xer_ca']
305 ca_actual
= res
['xer_ca']
306 print ("CA", ca_expected
, ca_actual
)
307 dut
.assertEqual(ca_expected
, ca_actual
, msg
)
309 def check_xer_ov(dut
, res
, sim_o
, msg
):
311 ov_expected
= sim_o
['xer_ov']
312 ov_actual
= res
['xer_ov']
313 print ("OV", ov_expected
, ov_actual
)
314 dut
.assertEqual(ov_expected
, ov_actual
, msg
)
316 def check_xer_so(dut
, res
, sim_o
, msg
):
318 so_expected
= sim_o
['xer_so']
319 so_actual
= res
['xer_so']
320 print ("SO", so_expected
, so_actual
)
321 dut
.assertEqual(so_expected
, so_actual
, msg
)