rename spr1 to fast1 in trap data

[soc.git] / src / soc / fu / trap / pipe_data.py

diff --git a/src/soc/fu/trap/pipe_data.py b/src/soc/fu/trap/pipe_data.py
index 8b4e343a525cbfd041155dfcdc69843e25f9201a..a43c214c65031f0c8ba99526a75bb95dee462a35 100644 (file)
--- a/src/soc/fu/trap/pipe_data.py
+++ b/src/soc/fu/trap/pipe_data.py
@@ -1,78 +1,35 @@
-from nmigen import Signal, Const
-from ieee754.fpcommon.getop import FPPipeContext
-from soc.fu.pipe_data import IntegerData
-from soc.decoder.power_decoder2 import Data
-from nmutil.dynamicpipe import SimpleHandshakeRedir
-from soc.fu.alu.alu_input_record import CompALUOpSubset # TODO: replace
+from soc.fu.pipe_data import IntegerData, CommonPipeSpec
+from soc.fu.trap.trap_input_record import CompTrapOpSubset
 
 
 class TrapInputData(IntegerData):
-    regspec = [('INT', 'ra', '0:63'),
-               ('INT', 'rb', '0:63'),
-               ('FAST', 'spr1', '0:63'),
-               ('FAST', 'cia', '0:63'),
-               ('FAST', 'msr', '0:63')]
+    regspec = [('INT', 'ra', '0:63'),  # RA
+               ('INT', 'rb', '0:63'),  # RB/immediate
+               ('FAST', 'fast1', '0:63'), # SRR0
+               ('FAST', 'fast2', '0:63'), # SRR1
+               ('FAST', 'cia', '0:63'),  # Program counter (current)
+               ('FAST', 'msr', '0:63')]  # MSR
     def __init__(self, pspec):
-        super().__init__(pspec)
-        self.ra = Signal(64, reset_less=True)  # RA
-        self.rb = Signal(64, reset_less=True)  # RB/immediate
-        self.spr1 = Data(64, name="spr1") # SRR0
-        self.cia = Signal(64, reset_less=True)  # Program counter
-        self.msr = Signal(64, reset_less=True)  # MSR
+        super().__init__(pspec, False)
         # convenience
-        self.srr0, self.a, self.b = self.spr1, self.ra, self.rb
-
-    def __iter__(self):
-        yield from super().__iter__()
-        yield self.ra
-        yield self.rb
-        yield self.spr1
-        yield self.cia
-        yield self.msr
-
-    def eq(self, i):
-        lst = super().eq(i)
-        return lst + [self.ra.eq(i.ra), self.rb.eq(i.rb), self.spr1.eq(i.spr1),
-                      self.cia.eq(i.cia), self.msr.eq(i.msr)]
+        self.srr0, self.srr1 = self.fast1, self.fast2
+        self.a, self.b = self.ra, self.rb
 
 
 class TrapOutputData(IntegerData):
-    regspec = [('INT', 'o', '0:63'),
-               ('FAST', 'spr1', '0:63'),
-               ('FAST', 'spr2', '0:63'),
-               ('FAST', 'nia', '0:63'),
-               ('FAST', 'msr', '0:63')]
+    regspec = [('INT', 'o', '0:63'),     # RA
+               ('FAST', 'fast1', '0:63'), # SRR0 SPR
+               ('FAST', 'fast2', '0:63'), # SRR1 SPR
+               ('FAST', 'nia', '0:63'),  # NIA (Next PC)
+               ('FAST', 'msr', '0:63')]  # MSR
     def __init__(self, pspec):
-        super().__init__(pspec)
-        self.o = Data(64, name="o")       # RA
-        self.spr1 = Data(64, name="spr1") # SRR0 SPR
-        self.spr2 = Data(64, name="spr2") # SRR1 SPR
-        self.nia = Data(64, name="nia") # NIA (Next PC)
-        self.msr = Data(64, name="msr") # MSR
+        super().__init__(pspec, True)
         # convenience
-        self.srr0, self.srr1 = self.spr1, self.spr2
-
-    def __iter__(self):
-        yield from super().__iter__()
-        yield self.o
-        yield self.nia
-        yield self.msr
-        yield self.spr1
-        yield self.spr2
+        self.srr0, self.srr1 = self.fast1, self.fast2
 
-    def eq(self, i):
-        lst = super().eq(i)
-        return lst + [ self.o.eq(i.o), self.nia.eq(i.nia), self.msr.eq(i.msr),
-                      self.spr1.eq(i.spr1), self.spr2.eq(i.spr2)]
 
 
 # TODO: replace CompALUOpSubset with CompTrapOpSubset
-class TrapPipeSpec:
+class TrapPipeSpec(CommonPipeSpec):
     regspec = (TrapInputData.regspec, TrapOutputData.regspec)
-    opsubsetkls = CompALUOpSubset
-    def __init__(self, id_wid, op_wid):
-        self.id_wid = id_wid
-        self.op_wid = op_wid
-        self.opkls = lambda _: self.opsubsetkls(name="op")
-        self.stage = None
-        self.pipekls = SimpleHandshakeRedir
+    opsubsetkls = CompTrapOpSubset