adding a unit test for multiported bank, this test will skip in the regression testing because multiported bank does not pass drc yet

compiler/tests/19_psingle_bank_test.py

@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+"""
+Run a regression test on various srams
+"""
+
+import unittest
+from testutils import header,openram_test
+import sys,os
+sys.path.append(os.path.join(sys.path[0],".."))
+import globals
+from globals import OPTS
+import debug
+
+@unittest.skip("Multiported Bank not working yet")
+class single_bank_test(openram_test):
+
+    def runTest(self):
+        globals.init_openram("config_20_{0}".format(OPTS.tech_name))
+        global verify
+        import verify
+
+        from bank import bank
+        OPTS.bitcell = "pbitcell"
+        
+        # testing all port configurations (with no column mux) to verify layout between bitcell array and peripheral circuitry
+        OPTS.rw_ports = 2
+        OPTS.w_ports = 2
+        OPTS.r_ports = 2
+
+        debug.info(1, "No column mux")
+        a = bank(word_size=4, num_words=16, words_per_row=1, num_banks=1, name="bank1_2rw_2w_2r_single")
+        self.local_check(a)
+        """
+        OPTS.rw_ports = 0
+        OPTS.w_ports = 2
+        OPTS.r_ports = 2
+
+        debug.info(1, "No column mux")
+        a = bank(word_size=4, num_words=16, words_per_row=1, num_banks=1, name="bank1_0rw_2w_2r_single")
+        self.local_check(a)
+        
+        OPTS.rw_ports = 2
+        OPTS.w_ports = 0
+        OPTS.r_ports = 2
+
+        debug.info(1, "No column mux")
+        a = bank(word_size=4, num_words=16, words_per_row=1, num_banks=1, name="bank1_2rw_0w_2r_single")
+        self.local_check(a)
+        
+        OPTS.rw_ports = 2
+        OPTS.w_ports = 2
+        OPTS.r_ports = 0
+
+        debug.info(1, "No column mux")
+        a = bank(word_size=4, num_words=16, words_per_row=1, num_banks=1, name="bank1_2rw_2w_0r_single")
+        self.local_check(a)
+        
+        OPTS.rw_ports = 2
+        OPTS.w_ports = 0
+        OPTS.r_ports = 0
+
+        debug.info(1, "No column mux")
+        a = bank(word_size=4, num_words=16, words_per_row=1, num_banks=1, name="bank1_2rw_0w_0r_single")
+        self.local_check(a)
+        
+        # testing with various column muxes
+        OPTS.rw_ports = 2
+        OPTS.w_ports = 2
+        OPTS.r_ports = 2
+        
+        debug.info(1, "Two way column mux")
+        a = bank(word_size=4, num_words=32, words_per_row=2, num_banks=1, name="bank2_single")
+        self.local_check(a)
+
+        debug.info(1, "Four way column mux")
+        a = bank(word_size=4, num_words=64, words_per_row=4, num_banks=1, name="bank3_single")
+        self.local_check(a)
+
+        # Eight way has a short circuit of one column mux select to gnd rail
+        debug.info(1, "Eight way column mux")
+        a = bank(word_size=2, num_words=128, words_per_row=8, num_banks=1, name="bank4_single")
+        self.local_check(a)
+        """
+        
+        globals.end_openram()
+        
+# instantiate a copy of the class to actually run the test
+if __name__ == "__main__":
+    (OPTS, args) = globals.parse_args()
+    del sys.argv[1:]
+    header(__file__, OPTS.tech_name)
+    unittest.main()