src/ieee754/fcvt/test/test_fcvt_int_pipe.py

   1 """ test of FPCVTMuxInOut
   2 """
   3
   4 from ieee754.fcvt.pipeline import (FPCVTIntMuxInOut,)
   5 from ieee754.fpcommon.test.fpmux import runfp
   6
   7 import sfpy
   8 from sfpy import Float64, Float32, Float16
   9
  10 def to_uint16(x):
  11     return x
  12
  13 def to_uint32(x):
  14     return x
  15
  16 def to_uint64(x):
  17     return x
  18
  19 def fcvt_64(x):
  20     return sfpy.float.ui32_to_f64(x)
  21
  22 def fcvt_32(x):
  23     return sfpy.float.ui32_to_f32(x)
  24
  25 def fcvt_16(x):
  26     return sfpy.float.ui32_to_f16(x)
  27
  28 def test_int_pipe_ui16_f32():
  29     # XXX softfloat-3 doesn't have ui16_to_xxx so use ui32 instead.
  30     # should be fine.
  31     dut = FPCVTIntMuxInOut(16, 32, 4)
  32     runfp(dut, 16, "test_fcvt_int_pipe_ui16_f32", to_uint16, fcvt_32, True,
  33           n_vals=100)
  34
  35 def test_int_pipe_ui16_f64():
  36     dut = FPCVTIntMuxInOut(16, 64, 4)
  37     runfp(dut, 16, "test_fcvt_int_pipe_ui16_f64", to_uint16, fcvt_64, True,
  38           n_vals=100)
  39
  40 def test_int_pipe_ui32_f64():
  41     dut = FPCVTIntMuxInOut(32, 64, 4)
  42     runfp(dut, 32, "test_fcvt_int_pipe_ui32_64", to_uint32, fcvt_64, True,
  43           n_vals=100)
  44
  45 def test_int_pipe_ui64_f16():
  46     # ok, doing 17 bits here because it's pretty pointless (not entirely)
  47     # to do random numbers statistically likely 99.999% of the time to be
  48     # converted to Inf
  49     dut = FPCVTIntMuxInOut(64, 16, 4)
  50     runfp(dut, 17, "test_fcvt_int_pipe_ui64_16", to_uint64, fcvt_16, True,
  51           n_vals=100)
  52
  53 def test_int_pipe_ui32_f16():
  54     # ok, doing 17 bits here because it's pretty pointless (not entirely)
  55     # to do random numbers statistically likely 99.999% of the time to be
  56     # converted to Inf
  57     dut = FPCVTIntMuxInOut(32, 16, 4)
  58     runfp(dut, 17, "test_fcvt_int_pipe_ui32_16", to_uint32, fcvt_16, True,
  59           n_vals=100)
  60
  61 if __name__ == '__main__':
  62     for i in range(200):
  63         test_int_pipe_ui32_f16()
  64         test_int_pipe_ui64_f16()
  65         test_int_pipe_ui16_f32()
  66         test_int_pipe_ui16_f64()
  67         test_int_pipe_ui32_f64()
  68