Nand game

Author: Alexei Bezborodov

nandgame.py

@@ -4,7 +4,7 @@ def NAND(a, b):
             return 0
     return 1
 
-print('NAND(1,1)=', NAND(1, 1))
+print('NAND(1,0)=', NAND(1, 0))
 
 def INV(a):
     return NAND(a, a)
@@ -23,7 +23,7 @@ def XOR(a, b):
 def HALF_ADD(a, b):
     return AND(a, b), XOR(a, b)
 
-h,l = HALF_ADD(1,1)
+h, l = HALF_ADD(1,1)
 print('HALF_ADD(1,1)=', h, l)
 
 def FULL_ADD(a, b, c):
@@ -32,16 +32,13 @@ def FULL_ADD(a, b, c):
     return OR(h1, h), l1 
 
 h,l = FULL_ADD(1,1,1)
-print('FULL_ADD(1,1)=', h, l)
+print('FULL_ADD(1,1,1)=', h, l)
 
 def MULTI_BIT_ADD(a, b, c):
-    h = 0
-    result = [0]*len(a)
+    s = [0]*len(a) 
     for i in range(len(a)):
-        h, l = FULL_ADD(a[i], b[i], c)
-        result[i] = l
-        c = h
-    return h, result 
+        c, s[i] = FULL_ADD(a[i], b[i], c)
+    return c, s 
 
-h,r = MULTI_BIT_ADD([1, 0],[1, 1],1)
-print('MULTI_BIT_ADD([1, 0],[1, 1],1)=', h, r)
+c, s = MULTI_BIT_ADD([0,1,1,0,0],[1,1,0,0,0],0)
+print('MULTI_BIT_ADD([0,1,1,0,0],[1,1,0,0,0],0)=', c, s)