Merge other basic circuits here

test/helpers/printsignal.js

@@ -0,0 +1,22 @@
+
+const snarkjs = require("snarkjs");
+
+const bigInt = snarkjs.bigInt;
+
+module.exports = function hexBits(cir, witness, sig, nBits) {
+    let v = bigInt(0);
+    for (let i=nBits-1; i>=0; i--) {
+        v = v.shiftLeft(1);
+        const name = sig+"["+i+"]";
+        const idx = cir.getSignalIdx(name);
+        const vbit = bigInt(witness[idx].toString());
+        if (vbit.equals(bigInt(1))) {
+            v = v.add(bigInt(1));
+        } else if (vbit.equals(bigInt(0))) {
+            v;
+        } else {
+            console.log("Not Binary: "+name);
+        }
+    }
+    return v.toString(16);
+};