add testcase for LDSTSplitter using PortInterface

diff --git a/src/soc/experiment/test/test_l0_cache_buffer2.py b/src/soc/experiment/test/test_l0_cache_buffer2.py
index 33c6355fda8b371112f044b552c59c3a97c4e343..ae1ae7e8872e1e4f427b21e16367526d08cb9961 100644 (file)
--- a/src/soc/experiment/test/test_l0_cache_buffer2.py
+++ b/src/soc/experiment/test/test_l0_cache_buffer2.py
@@ -1,10 +1,15 @@
 """
-TODO
+test cases for LDSTSplitter and L0CacheBuffer2
 """
 
 from soc.experiment.l0_cache import L0CacheBuffer2
 from nmigen import Module
 from nmigen.cli import rtlil
+from soc.scoreboard.addr_split import LDSTSplitter
+from soc.scoreboard.addr_match import LenExpand
+
+from soc.config.test.test_pi2ls import pi_ld, pi_st, pi_ldst
+
 #cxxsim = False
 #if cxxsim:
 #    from nmigen.sim.cxxsim import Simulator, Settle
@@ -12,19 +17,39 @@ from nmigen.cli import rtlil
 #    from nmigen.back.pysim import Simulator, Settle
 from nmigen.compat.sim import run_simulation, Settle
 
-def test_cache_run(dut):
+def writeMulti(dut):
+    for i in range(dut.n_units):
+        yield dut.dports[i].is_st_i.eq(1)
+        yield dut.dports[i].addr.data.eq(i)
     yield
+    # TODO assert that outputs are valid
+
+def test_cache_run(dut):
+    yield from writeMulti(dut)
+
+def test_cache_single_run(dut):
+    #test single byte
+    addr = 0
+    data = 0xfeedface
+    yield from pi_st(dut.pi, addr, data, 1)
 
 def test_cache():
     dut = L0CacheBuffer2()
 
     #vl = rtlil.convert(dut, ports=dut.ports())
-    # with open("test_data_merger.il", "w") as f:
+    #with open("test_data_merger.il", "w") as f:
     #    f.write(vl)
 
     run_simulation(dut, test_cache_run(dut),
                    vcd_name='test_cache.vcd')
 
+def test_cache_single():
+    dut = LDSTSplitter(8, 48, 4) #data leng in bytes, address bits, select bits
+
+    run_simulation(dut, test_cache_single_run(dut),
+                   vcd_name='test_cache_single.vcd')
+
+
 if __name__ == '__main__':
-    test_cache()
-    #TODO make debug output optional
+    #test_cache()
+    test_cache_single()