Init nand2tetris

projects/03/a/Register.hdl

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+// 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/03/a/Register.hdl
+
+/**
+ * 16-bit register:
+ * If load[t] == 1 then out[t+1] = in[t]
+ * else out does not change
+ */
+
+CHIP Register {
+    IN in[16], load;
+    OUT out[16];
+
+    PARTS:
+    Bit(in=in[0], load=load, out=out[0]);
+    Bit(in=in[1], load=load, out=out[1]);
+    Bit(in=in[2], load=load, out=out[2]);
+    Bit(in=in[3], load=load, out=out[3]);
+    Bit(in=in[4], load=load, out=out[4]);
+    Bit(in=in[5], load=load, out=out[5]);
+    Bit(in=in[6], load=load, out=out[6]);
+    Bit(in=in[7], load=load, out=out[7]);
+    Bit(in=in[8], load=load, out=out[8]);
+    Bit(in=in[9], load=load, out=out[9]);
+    Bit(in=in[10], load=load, out=out[10]);
+    Bit(in=in[11], load=load, out=out[11]);
+    Bit(in=in[12], load=load, out=out[12]);
+    Bit(in=in[13], load=load, out=out[13]);
+    Bit(in=in[14], load=load, out=out[14]);
+    Bit(in=in[15], load=load, out=out[15]);
+}