split out corrections to separate module

[ieee754fpu.git] / src / add / nmigen_add_experiment.py

diff --git a/src/add/nmigen_add_experiment.py b/src/add/nmigen_add_experiment.py
index bb3c9702382f76e422fbce3c4b6946aa1b8f0ddb..9eb5a4bd985bbfb016e36081fa16af5bf3538cb4 100644 (file)
--- a/src/add/nmigen_add_experiment.py
+++ b/src/add/nmigen_add_experiment.py
@@ -21,6 +21,7 @@ from fpcommon.postcalc import FPAddStage1Data
 from fpcommon.postnormalise import (FPNorm1Data, FPNorm1ModSingle,
                             FPNorm1ModMulti, FPNorm1Single, FPNorm1Multi)
 from fpcommon.roundz import (FPRoundData, FPRoundMod, FPRound)
+from fpcommon.corrections import (FPCorrectionsMod, FPCorrections)
 
 
 class FPAddSpecialCasesMod:
@@ -672,65 +673,6 @@ class FPNormToPack(FPState, UnbufferedPipeline):
         m.next = "pack_put_z"
 
 
-class FPCorrectionsMod:
-
-    def __init__(self, width, id_wid):
-        self.width = width
-        self.id_wid = id_wid
-        self.i = self.ispec()
-        self.out_z = self.ospec()
-
-    def ispec(self):
-        return FPRoundData(self.width, self.id_wid)
-
-    def ospec(self):
-        return FPRoundData(self.width, self.id_wid)
-
-    def process(self, i):
-        return self.out_z
-
-    def setup(self, m, i):
-        """ links module to inputs and outputs
-        """
-        m.submodules.corrections = self
-        m.d.comb += self.i.eq(i)
-
-    def elaborate(self, platform):
-        m = Module()
-        m.submodules.corr_in_z = self.i.z
-        m.submodules.corr_out_z = self.out_z.z
-        m.d.comb += self.out_z.eq(self.i) # copies mid, z, out_do_z
-        with m.If(~self.i.out_do_z):
-            with m.If(self.i.z.is_denormalised):
-                m.d.comb += self.out_z.z.e.eq(self.i.z.N127)
-        return m
-
-
-class FPCorrections(FPState):
-
-    def __init__(self, width, id_wid):
-        FPState.__init__(self, "corrections")
-        self.mod = FPCorrectionsMod(width)
-        self.out_z = self.ospec()
-
-    def ispec(self):
-        return self.mod.ispec()
-
-    def ospec(self):
-        return self.mod.ospec()
-
-    def setup(self, m, in_z):
-        """ links module to inputs and outputs
-        """
-        self.mod.setup(m, in_z)
-
-        m.d.sync += self.out_z.eq(self.mod.out_z)
-        m.d.sync += self.out_z.mid.eq(self.mod.o.mid)
-
-    def action(self, m):
-        m.next = "pack"
-
-
 class FPPackData:
 
     def __init__(self, width, id_wid):