src/ieee754/cordic/fp_pipe_data.py

   1 from nmigen import Signal, Const
   2 from nmutil.dynamicpipe import SimpleHandshakeRedir
   3 from ieee754.fpcommon.fpbase import FPNumBaseRecord
   4 from ieee754.pipeline import PipelineSpec
   5 from nmutil.concurrentunit import num_bits
   6 import math
   7
   8 from ieee754.cordic.pipe_data import (CordicData, CordicInitialData,
   9                                       CordicPipeSpec)
  10
  11
  12 class FPCordicPipeSpec(CordicPipeSpec, PipelineSpec):
  13     def __init__(self, width, rounds_per_stage, num_rows):
  14         rec = FPNumBaseRecord(width, False)
  15         fracbits = 2 * rec.m_width
  16         self.width = width
  17         id_wid = num_bits(num_rows)
  18         CordicPipeSpec.__init__(self, fracbits, rounds_per_stage)
  19         PipelineSpec.__init__(self, width, op_wid=1, n_ops=1,
  20                               id_width=id_wid)