Merge other basic circuits here

circuits/escalarmulw4table.circom

@@ -0,0 +1,30 @@
+function pointAdd(x1,y1,x2,y2) {
+    var a = 168700;
+    var d = 168696;
+
+    var res[2];
+    res[0] = (x1*y2 + y1*x2) / (1 + d*x1*x2*y1*y2);
+    res[1] = (y1*y2 - a*x1*x2) / (1 - d*x1*x2*y1*y2);
+    return res;
+}
+
+template EscalarMulW4Table(base, k) {
+    signal output out[16][2];
+
+    var i;
+    var p[2];
+
+    var dbl = base;
+
+    for (i=0; i<k*4; i++) {
+        dbl = pointAdd(dbl[0], dbl[1], dbl[0], dbl[1]);
+    }
+
+    out[0][0] <== 0;
+    out[0][1] <== 1;
+    for (i=1; i<16; i++) {
+        p = pointAdd(out[i-1][0], out[i-1][1], dbl[0], dbl[1]);
+        out[i][0] <== p[0];
+        out[i][1] <== p[1];
+    }
+}