Dokument erweitert

tools/builtInChips/Xor.hdl

@@ -1,13 +1,12 @@
 // This file is part of www.nand2tetris.org
 // and the book "The Elements of Computing Systems"
 // by Nisan and Schocken, MIT Press.
-// File name: tools/builtIn/Xor.hdl
-
+// File name: tools/builtInChips/Xor.hdl
 /**
- *  Exclusive-or gate: out = !(a == b).
+ * Exclusive-or gate:
+ * out = (((a == 0) & (b = 1)) | ((a == 1) & (b = 0)), 1, 0)
  */
-
-CHIP Xor {
+ CHIP Xor {
 
     IN  a, b;
     OUT out;