1 from soc
.fu
.pipe_data
import IntegerData
, CommonPipeSpec
2 from soc
.fu
.trap
.trap_input_record
import CompTrapOpSubset
5 class TrapInputData(IntegerData
):
6 regspec
= [('INT', 'ra', '0:63'), # RA
7 ('INT', 'rb', '0:63'), # RB/immediate
8 ('FAST', 'spr1', '0:63'), # SRR0
9 ('FAST', 'spr2', '0:63'), # SRR1
10 ('FAST', 'cia', '0:63'), # Program counter (current)
11 ('FAST', 'msr', '0:63')] # MSR
12 def __init__(self
, pspec
):
13 super().__init
__(pspec
, False)
15 self
.srr0
, self
.srr1
= self
.spr1
, self
.spr2
16 self
.a
, self
.b
= self
.ra
, self
.rb
19 class TrapOutputData(IntegerData
):
20 regspec
= [('INT', 'o', '0:63'), # RA
21 ('FAST', 'spr1', '0:63'), # SRR0 SPR
22 ('FAST', 'spr2', '0:63'), # SRR1 SPR
23 ('FAST', 'nia', '0:63'), # NIA (Next PC)
24 ('FAST', 'msr', '0:63')] # MSR
25 def __init__(self
, pspec
):
26 super().__init
__(pspec
, True)
28 self
.srr0
, self
.srr1
= self
.spr1
, self
.spr2
32 # TODO: replace CompALUOpSubset with CompTrapOpSubset
33 class TrapPipeSpec(CommonPipeSpec
):
34 regspec
= (TrapInputData
.regspec
, TrapOutputData
.regspec
)
35 opsubsetkls
= CompTrapOpSubset