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Diffstat (limited to 'projects/demo/Xor.hdl')
-rw-r--r-- | projects/demo/Xor.hdl | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/projects/demo/Xor.hdl b/projects/demo/Xor.hdl deleted file mode 100644 index db49351..0000000 --- a/projects/demo/Xor.hdl +++ /dev/null @@ -1,25 +0,0 @@ -// This file is part of www.nand2tetris.org
-// and the book "The Elements of Computing Systems"
-// by Nisan and Schocken, MIT Press.
-// File name: projects/demo/Xor.hdl
-
-/**
- * Exclusive-or gate: true if either a is true and b is false, or
- * a is false and b is true; false otherwise.
- * QUESTION: how can the simulator execute this program properly without
- * HDL implementations of the underlying Not, And, and Or chip-parts?
- * Answer: since the demo folder contains no Not.hdl, And.hdl and Or.hdl
- * files, the simulator reverts to using their built-in implementations.
- */
-
-CHIP Xor {
- IN a, b;
- OUT out;
-
- PARTS:
- Not (in=a, out=nota);
- Not (in=b, out=notb);
- And (a=a, b=notb, out=x);
- And (a=nota, b=b, out=y);
- Or (a=x, b=y, out=out);
-}
\ No newline at end of file |