from ieee754.fpcommon.fpbase import Overflow, FPNumBase, FPNumBaseRecord
from ieee754.fpcommon.fpbase import MultiShiftRMerge
from ieee754.fpcommon.fpbase import FPState
+from ieee754.fpcommon.getop import FPPipeContext
from .postcalc import FPAddStage1Data
class FPNorm1Data:
- def __init__(self, width, id_wid):
+ def __init__(self, width, pspec):
self.roundz = Signal(reset_less=True, name="norm1_roundz")
self.z = FPNumBaseRecord(width, False)
self.out_do_z = Signal(reset_less=True)
self.oz = Signal(width, reset_less=True)
- self.mid = Signal(id_wid, reset_less=True)
+ self.ctx = FPPipeContext(width, pspec)
+ self.muxid = self.ctx.muxid
def eq(self, i):
- return [self.z.eq(i.z), self.out_do_z.eq(i.out_do_z), self.oz.eq(i.oz),
- self.roundz.eq(i.roundz), self.mid.eq(i.mid)]
+ ret = [self.z.eq(i.z), self.out_do_z.eq(i.out_do_z), self.oz.eq(i.oz),
+ self.roundz.eq(i.roundz), self.ctx.eq(i.ctx)]
+ return ret
class FPNorm1ModSingle(Elaboratable):
- def __init__(self, width, id_wid):
+ def __init__(self, width, pspec):
self.width = width
- self.id_wid = id_wid
+ self.pspec = pspec
self.i = self.ispec()
self.o = self.ospec()
def ispec(self):
- return FPAddStage1Data(self.width, self.id_wid)
+ return FPAddStage1Data(self.width, self.pspec)
def ospec(self):
- return FPNorm1Data(self.width, self.id_wid)
+ return FPNorm1Data(self.width, self.pspec)
def setup(self, m, i):
""" links module to inputs and outputs
m.d.comb += self.o.roundz.eq(of.roundz)
#m.submodules.norm1_out_z = self.o.z
- m.submodules.norm1_out_overflow = of
+ #m.submodules.norm1_out_overflow = of
#m.submodules.norm1_in_z = self.i.z
- m.submodules.norm1_in_overflow = self.i.of
+ #m.submodules.norm1_in_overflow = self.i.of
i = self.ispec()
m.submodules.norm1_insel_z = insel_z = FPNumBase(i.z)
- m.submodules.norm1_insel_overflow = i.of
+ #m.submodules.norm1_insel_overflow = i.of
espec = (len(insel_z.e), True)
ediff_n126 = Signal(espec, reset_less=True)
self.o.z.e.eq(insel_z.e + ediff_n126),
]
- m.d.comb += self.o.mid.eq(self.i.mid)
+ m.d.comb += self.o.ctx.eq(self.i.ctx)
m.d.comb += self.o.out_do_z.eq(self.i.out_do_z)
m.d.comb += self.o.oz.eq(self.i.oz)