diff --git a/zcash_fpga/src/tb/secp256k1_point_add_tb.sv b/zcash_fpga/src/tb/secp256k1_point_add_tb.sv
index bbdbf37..3e2e947 100644
--- a/zcash_fpga/src/tb/secp256k1_point_add_tb.sv
+++ b/zcash_fpga/src/tb/secp256k1_point_add_tb.sv
@@ -163,6 +163,8 @@ begin
   end
 
   $display("test %d PASSED", index);
+      $display("Expected:");
+  print_jb_point(p_exp);
 end
 endtask;
 
@@ -175,15 +177,22 @@ initial begin
   in_if.val = 0;
   #(40*CLK_PERIOD);
 
-  test(0,
+ test(0,
     {x:256'h2475abeb8f0fc52f627afb4c18227dfa756706ceb5923cd8a209bf43c2f08815,
     y:256'h4361473bccf308998bbb8c0b9a0184d186ada6e85e1cb1b82ac202380df8f762,
     z:256'hdda493ffbcdc8daf0996a769bf192cc4627839d0025b4ad960c3e25dab464863},
     {x:256'h4a58b6edef1379306fce3372763fd87eaf2c8f447c6408416e746e672ee6ce21,
     y:256'h33adac20db34d12166586c56aa8a352b155bcfdd011f46b38c21e0c4d39968a4,
     z:256'h8631df8718bcb2d2920dfd313c714a153cfc6db607891e341b0856411717cf4f});
-
-  test(1,
+    
+ test(1,
+       {x:secp256k1_pkg::Gx,
+       y:secp256k1_pkg::Gx,
+       z:256'h1},
+       {x:256'h4a58b6edef1379306fce3372763fd87eaf2c8f447c6408416e746e672ee6ce21,
+       y:256'h33adac20db34d12166586c56aa8a352b155bcfdd011f46b38c21e0c4d39968a4,
+       z:256'h8631df8718bcb2d2920dfd313c714a153cfc6db607891e341b0856411717cf4f});
+  test(2,
         {x:256'd21093662951128507222548537960537987883266099219826518477955151519492458533937,
         y:256'd11718937855299224635656538406325081070585145153119064354000306947171340794663,
         z:256'd95062982235784117998228889817699378193266444799407382177811223706903593950986},
@@ -192,7 +201,7 @@ initial begin
         z:256'd55019374069926147245812105698770268552109628033761289528651825525953166671152}
         );
 
-  test(2,{x:256'd56542328592951707446199365077593875570107826996267232506335199217850131398833,
+  test(3,{x:256'd56542328592951707446199365077593875570107826996267232506335199217850131398833,
           y:256'd40054381197676821721097330834174068128555866625836435038947476656223470027610,
           z:256'd55019374069926147245812105698770268552109628033761289528651825525953166671152},
          {x:256'd21093662951128507222548537960537987883266099219826518477955151519492458533937,
@@ -200,13 +209,21 @@ initial begin
           z:256'd95062982235784117998228889817699378193266444799407382177811223706903593950986}
           );
 
-  test(3,
+  test(4,
         {x:256'h79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798,
         y:256'h483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8,
         z:256'h1},
         {x:256'h7d152c041ea8e1dc2191843d1fa9db55b68f88fef695e2c791d40444b365afc2,
         y:256'h56915849f52cc8f76f5fd7e4bf60db4a43bf633e1b1383f85fe89164bfadcbdb,
         z:256'h9075b4ee4d4788cabb49f7f81c221151fa2f68914d0aa833388fa11ff621a970});
+        
+  test(5,
+      {x:256'h7d152c041ea8e1dc2191843d1fa9db55b68f88fef695e2c791d40444b365afc2,
+      y:256'h56915849f52cc8f76f5fd7e4bf60db4a43bf633e1b1383f85fe89164bfadcbdb,
+      z:256'h9075b4ee4d4788cabb49f7f81c221151fa2f68914d0aa833388fa11ff621a970},
+      {x:256'h79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798,
+      y:256'h483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8,
+      z:256'h1});
 
   #1us $finish();
 end