WIP: alu

nand2vm/gate/__init__.py

@@ -11,3 +11,4 @@
 from .xor import Xor
 from .mux import Mux, Mux16, Mux4Way16, Mux8Way16
 from .adder import fa, ha, add16
+from .alu import ALU

nand2vm/gate/alu.py

@@ -9,4 +9,5 @@
 
 
 def ALU(x, y, zx, nx, zy, ny, f, no) -> Tuple[List[bool], bool, bool]:
-    pass
+    # print(x, y, zx, nx, zy, ny, f, no)
+    return (None, None, None)

test/data/ALU.cmp

@@ -0,0 +1,37 @@
+x|y|zx|nx|zy|ny|f|no|out|zr|ng
+0000000000000000|1111111111111111|1|0|1|0|1|0|0000000000000000|1|0
+0000000000000000|1111111111111111|1|1|1|1|1|1|0000000000000001|0|0
+0000000000000000|1111111111111111|1|1|1|0|1|0|1111111111111111|0|1
+0000000000000000|1111111111111111|0|0|1|1|0|0|0000000000000000|1|0
+0000000000000000|1111111111111111|1|1|0|0|0|0|1111111111111111|0|1
+0000000000000000|1111111111111111|0|0|1|1|0|1|1111111111111111|0|1
+0000000000000000|1111111111111111|1|1|0|0|0|1|0000000000000000|1|0
+0000000000000000|1111111111111111|0|0|1|1|1|1|0000000000000000|1|0
+0000000000000000|1111111111111111|1|1|0|0|1|1|0000000000000001|0|0
+0000000000000000|1111111111111111|0|1|1|1|1|1|0000000000000001|0|0
+0000000000000000|1111111111111111|1|1|0|1|1|1|0000000000000000|1|0
+0000000000000000|1111111111111111|0|0|1|1|1|0|1111111111111111|0|1
+0000000000000000|1111111111111111|1|1|0|0|1|0|1111111111111110|0|1
+0000000000000000|1111111111111111|0|0|0|0|1|0|1111111111111111|0|1
+0000000000000000|1111111111111111|0|1|0|0|1|1|0000000000000001|0|0
+0000000000000000|1111111111111111|0|0|0|1|1|1|1111111111111111|0|1
+0000000000000000|1111111111111111|0|0|0|0|0|0|0000000000000000|1|0
+0000000000000000|1111111111111111|0|1|0|1|0|1|1111111111111111|0|1
+0000000000010001|0000000000000011|1|0|1|0|1|0|0000000000000000|1|0
+0000000000010001|0000000000000011|1|1|1|1|1|1|0000000000000001|0|0
+0000000000010001|0000000000000011|1|1|1|0|1|0|1111111111111111|0|1
+0000000000010001|0000000000000011|0|0|1|1|0|0|0000000000010001|0|0
+0000000000010001|0000000000000011|1|1|0|0|0|0|0000000000000011|0|0
+0000000000010001|0000000000000011|0|0|1|1|0|1|1111111111101110|0|1
+0000000000010001|0000000000000011|1|1|0|0|0|1|1111111111111100|0|1
+0000000000010001|0000000000000011|0|0|1|1|1|1|1111111111101111|0|1
+0000000000010001|0000000000000011|1|1|0|0|1|1|1111111111111101|0|1
+0000000000010001|0000000000000011|0|1|1|1|1|1|0000000000010010|0|0
+0000000000010001|0000000000000011|1|1|0|1|1|1|0000000000000100|0|0
+0000000000010001|0000000000000011|0|0|1|1|1|0|0000000000010000|0|0
+0000000000010001|0000000000000011|1|1|0|0|1|0|0000000000000010|0|0
+0000000000010001|0000000000000011|0|0|0|0|1|0|0000000000010100|0|0
+0000000000010001|0000000000000011|0|1|0|0|1|1|0000000000001110|0|0
+0000000000010001|0000000000000011|0|0|0|1|1|1|1111111111110010|0|1
+0000000000010001|0000000000000011|0|0|0|0|0|0|0000000000000001|0|0
+0000000000010001|0000000000000011|0|1|0|1|0|1|0000000000010011|0|0

test/test_alu.py

@@ -0,0 +1,30 @@
+#
+# Copyright (c) 2017 Louie Lu. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+#
+
+import csv
+import os
+import unittest
+from collections import namedtuple
+from nand2vm import gate, BitArray
+
+
+PACKAGE_DIRECTORY = os.path.dirname(os.path.abspath(__file__))
+DATA_DIRECTORY = os.path.join(PACKAGE_DIRECTORY, 'data')
+
+
+class ALUTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        with open(os.path.join(DATA_DIRECTORY, 'ALU.cmp'), newline='') as f:
+            reader = csv.reader(f, delimiter='|')
+            Data = namedtuple('Data', next(reader))
+            cls.cases = [case for case in map(Data._make, reader)]
+
+    def test_alu(self):
+        for case in self.cases:
+            with self.subTest(x=case.x, y=case.y, out=case.out):
+                out, zr, ng = gate.ALU(case.x, case.y, case.zx, case.nx,
+                                       case.zy, case.ny, case.f, case.no)