get old fpadd back

[ieee754fpu.git] / src / add / test_state_add.py

diff --git a/src/add/test_state_add.py b/src/add/test_state_add.py
new file mode 100644 (file)
index 0000000..1256774
--- /dev/null
+++ b/src/add/test_state_add.py
@@ -0,0 +1,72 @@
+from random import randint
+from random import seed
+from operator import add
+
+from nmigen import Module, Signal
+from nmigen.compat.sim import run_simulation
+
+from fadd_state import FPADD
+
+from unit_test_single import (get_mantissa, get_exponent, get_sign, is_nan,
+                                is_inf, is_pos_inf, is_neg_inf,
+                                match, get_case, check_case, run_test,
+                                run_edge_cases, run_corner_cases)
+
+def testbench(dut):
+    yield from check_case(dut, 0xFFFFFFFF, 0xC63B800A, 0xFFC00000)
+    yield from check_case(dut, 0xFF800000, 0x7F800000, 0xFFC00000)
+    #yield from check_case(dut, 0xFF800000, 0x7F800000, 0x7FC00000)
+    yield from check_case(dut, 0x7F800000, 0xFF800000, 0xFFC00000)
+    yield from check_case(dut, 0x42540000, 0xC2540000, 0x00000000)
+    yield from check_case(dut, 0xC2540000, 0x42540000, 0x00000000)
+    yield from check_case(dut, 0xfe34f995, 0xff5d59ad, 0xff800000)
+    yield from check_case(dut, 0x82471f51, 0x243985f, 0x801c3790)
+    yield from check_case(dut, 0, 0, 0)
+    yield from check_case(dut, 0x40000000, 0xc0000000, 0x00000000)
+    yield from check_case(dut, 0x3F800000, 0x40000000, 0x40400000)
+    yield from check_case(dut, 0x40000000, 0x3F800000, 0x40400000)
+    yield from check_case(dut, 0x447A0000, 0x4488B000, 0x4502D800)
+    yield from check_case(dut, 0x463B800A, 0x42BA8A3D, 0x463CF51E)
+    yield from check_case(dut, 0x42BA8A3D, 0x463B800A, 0x463CF51E)
+    yield from check_case(dut, 0x463B800A, 0xC2BA8A3D, 0x463A0AF6)
+    yield from check_case(dut, 0xC2BA8A3D, 0x463B800A, 0x463A0AF6)
+    yield from check_case(dut, 0xC63B800A, 0x42BA8A3D, 0xC63A0AF6)
+    yield from check_case(dut, 0x42BA8A3D, 0xC63B800A, 0xC63A0AF6)
+    yield from check_case(dut, 0x7F800000, 0x00000000, 0x7F800000)
+    yield from check_case(dut, 0x00000000, 0x7F800000, 0x7F800000)
+    yield from check_case(dut, 0xFF800000, 0x00000000, 0xFF800000)
+    yield from check_case(dut, 0x00000000, 0xFF800000, 0xFF800000)
+    yield from check_case(dut, 0x7F800000, 0x7F800000, 0x7F800000)
+    yield from check_case(dut, 0xFF800000, 0xFF800000, 0xFF800000)
+    yield from check_case(dut, 0x00018643, 0x00FA72A4, 0x00FBF8E7)
+    yield from check_case(dut, 0x001A2239, 0x00FA72A4, 0x010A4A6E)
+    yield from check_case(dut, 0x3F7FFFFE, 0x3F7FFFFE, 0x3FFFFFFE)
+    yield from check_case(dut, 0x7EFFFFEE, 0x7EFFFFEE, 0x7F7FFFEE)
+    yield from check_case(dut, 0x7F7FFFEE, 0xFEFFFFEE, 0x7EFFFFEE)
+    yield from check_case(dut, 0x7F7FFFEE, 0x756CA884, 0x7F7FFFFD)
+    yield from check_case(dut, 0x7F7FFFEE, 0x758A0CF8, 0x7F7FFFFF)
+    yield from check_case(dut, 0x42500000, 0x51A7A358, 0x51A7A358)
+    yield from check_case(dut, 0x51A7A358, 0x42500000, 0x51A7A358)
+    yield from check_case(dut, 0x4E5693A4, 0x42500000, 0x4E5693A5)
+    yield from check_case(dut, 0x42500000, 0x4E5693A4, 0x4E5693A5)
+    #yield from check_case(dut, 1, 0, 1)
+    #yield from check_case(dut, 1, 1, 1)
+
+    count = 0
+
+    #regression tests
+    stimulus_a = [0x22cb525a, 0x40000000, 0x83e73d5c, 0xbf9b1e94, 0x34082401,
+                    0x5e8ef81, 0x5c75da81, 0x2b017]
+    stimulus_b = [0xadd79efa, 0xC0000000, 0x1c800000, 0xc038ed3a, 0xb328cd45, 
+                    0x114f3db, 0x2f642a39, 0xff3807ab]
+    yield from run_test(dut, stimulus_a, stimulus_b, add, check_case)
+    count += len(stimulus_a)
+    print (count, "vectors passed")
+
+    yield from run_corner_cases(dut, count, add)
+    yield from run_edge_cases(dut, count, add)
+
+if __name__ == '__main__':
+    dut = FPADD(width=32, single_cycle=True)
+    run_simulation(dut, testbench(dut), vcd_name="test_state_add.vcd")
+