add fprsqrt coverage tests for fp16 and fp32

diff --git a/src/ieee754/fpdiv/test/test_fprsqrt_pipe_16.py b/src/ieee754/fpdiv/test/test_fprsqrt_pipe_16.py
new file mode 100644 (file)
index 0000000..d8e4b2d
--- /dev/null
+++ b/src/ieee754/fpdiv/test/test_fprsqrt_pipe_16.py
@@ -0,0 +1,29 @@
+""" test of FPDIVMuxInOut
+"""
+
+from ieee754.fpdiv.pipeline import (FPDIVMuxInOut,)
+from ieee754.fpcommon.test.case_gen import run_pipe_fp
+from ieee754.fpcommon.test import unit_test_half
+#from ieee754.fpdiv.test.rsqrt_data16 import regressions
+from ieee754.div_rem_sqrt_rsqrt.core import DivPipeCoreOperation
+
+import unittest
+from sfpy import Float16, Float64
+
+
+def rsqrt(x):
+    # FIXME: switch to correct implementation
+    # needs to use exact arithmetic and rounding only once at the end
+    return x.__class__(float(Float64(1.0) / x.to_f64().sqrt()))
+
+
+class TestDivPipe(unittest.TestCase):
+    def test_pipe_rsqrt_fp16(self):
+        dut = FPDIVMuxInOut(16, 4)
+        # don't forget to initialize opcode; don't use magic numbers
+        opcode = int(DivPipeCoreOperation.RSqrtRem)
+        run_pipe_fp(dut, 16, "rsqrt16", unit_test_half, Float16, None,
+                    rsqrt, 100, single_op=True, opcode=opcode)
+
+if __name__ == '__main__':
+    unittest.main()

diff --git a/src/ieee754/fpdiv/test/test_fprsqrt_pipe_32.py b/src/ieee754/fpdiv/test/test_fprsqrt_pipe_32.py
new file mode 100644 (file)
index 0000000..24465ee
--- /dev/null
+++ b/src/ieee754/fpdiv/test/test_fprsqrt_pipe_32.py
@@ -0,0 +1,29 @@
+""" test of FPDIVMuxInOut
+"""
+
+from ieee754.fpdiv.pipeline import (FPDIVMuxInOut,)
+from ieee754.fpcommon.test.case_gen import run_pipe_fp
+from ieee754.fpcommon.test import unit_test_single
+#from ieee754.fpdiv.test.rsqrt_data32 import regressions
+from ieee754.div_rem_sqrt_rsqrt.core import DivPipeCoreOperation
+
+import unittest
+from sfpy import Float32, Float64
+
+
+def rsqrt(x):
+    # FIXME: switch to correct implementation
+    # needs to use exact arithmetic and rounding only once at the end
+    return x.__class__(float(Float64(1.0) / x.to_f64().sqrt()))
+
+
+class TestDivPipe(unittest.TestCase):
+    def test_pipe_rsqrt_fp32(self):
+        dut = FPDIVMuxInOut(32, 4)
+        # don't forget to initialize opcode; don't use magic numbers
+        opcode = int(DivPipeCoreOperation.RSqrtRem)
+        run_pipe_fp(dut, 32, "rsqrt32", unit_test_single, Float32, None,
+                    rsqrt, 100, single_op=True, opcode=opcode)
+
+if __name__ == '__main__':
+    unittest.main()