src/ieee754/part_ass/passign.py

   1 # SPDX-License-Identifier: LGPL-2.1-or-later
   2 # See Notices.txt for copyright information
   3
   4 """
   5 Copyright (C) 2021 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
   6
   7 dynamically-partitionable "assign" class, directly equivalent
   8 to nmigen Assign
   9
  10 See:
  11
  12 * http://libre-riscv.org/3d_gpu/architecture/dynamic_simd/assign
  13 * http://bugs.libre-riscv.org/show_bug.cgi?id=709
  14
  15 """
  16
  17
  18
  19 modcount = 0 # global for now
  20 def PAssign(m, val, assign, mask):
  21     from ieee754.part_ass.assign import PartitionedAssign # recursion issue
  22     global modcount
  23     modcount += 1
  24     pc = PartitionedAssign(val.shape(), assign, mask)
  25     setattr(m.submodules, "pass%d" % modcount, pc)
  26     return val.lower().eq(pc.output.lower())
  27
  28