Caught a bug in lb_cdc.v

axi/lb_cdc.v

@@ -102,7 +102,7 @@ fifo_2c #(
   .empty(b2a_empty) // output
 );
 
-wire lbb_rstb_w, lbb_wstb_w, lbb_ren_w, lbb_wen_r;
+wire lbb_rstb_w, lbb_wstb_w, lbb_ren_w, lbb_wen_w;
 assign {lbb_rstb_w, lbb_wstb_w, lbb_ren_w, lbb_wen_w, lbb_addr_w, lbb_wdata_w} = a2b_dout;
 assign lbb_wen  = lbb_wen_w  & a2b_re;
 assign lbb_ren  = lbb_ren_w  & ren;

axi/lb_test_host_tb.v

@@ -126,26 +126,34 @@ initial begin
   // Wait for fifo_2c to clear out its uninitialized registers
   #(10*STEP) $display("Reading %d registers", MAX_XACTS[7:0]);
           interpacket_reset = 1'b0;
-  for (N=0; N<MAX_XACTS; N=N+1) begin
+  for (N=0; (N<MAX_XACTS) && ~break; N=N+1) begin
     #STEP wnr = 1'b0;
           addr = N[AW-1:0];
           start_stb = 1'b1;
     #STEP start_stb = 1'b0;
     #(6*STEP);
+  end
+  if (break) begin
+    $display("FAIL");
+    $stop(0);
   end
           `wait_timeout(~busy);
   if (to) $display("Timed out waiting for read transactions to complete");
           interpacket_reset = 1'b1;
   $display("Done reading");
   #(2*STEP) $display("Writing %d registers", MAX_XACTS[7:0]);
           interpacket_reset = 1'b0;
-  for (N=0; N<MAX_XACTS; N=N+1) begin
+  for (N=0; (N<MAX_XACTS) && ~break; N=N+1) begin
     #STEP wnr = 1'b1;
           addr = N[AW-1:0];
           wdata = M;
           start_stb = 1'b1;
     #STEP start_stb = 1'b0;
     #(6*STEP);
+  end
+  if (break) begin
+    $display("FAIL");
+    $stop(0);
   end
           `wait_timeout(~busy);
   if (to) $display("Timed out waiting for write transactions to complete");
@@ -154,17 +162,27 @@ initial begin
   #(2*STEP) $display("Reading %d registers again", MAX_XACTS[7:0]);
           readback = 1'b1;
           interpacket_reset = 1'b0;
-  for (N=0; N<MAX_XACTS; N=N+1) begin
+  for (N=0; (N<MAX_XACTS) && ~break; N=N+1) begin
     #STEP wnr = 1'b0;
           addr = N[AW-1:0];
           start_stb = 1'b1;
     #STEP start_stb = 1'b0;
     #(6*STEP);
+  end
+  if (break) begin
+    $display("FAIL");
+    $stop(0);
   end
           `wait_timeout(~busy);
   if (to) $display("Timed out waiting for read transactions to complete");
   #(4*STEP) interpacket_reset = 1'b1;
-  $finish();
+  if (errors == 0) begin
+    $display("PASS");
+    $finish(0);
+  end else begin
+    $display("FAIL");
+    $stop(0);
+  end
 end
 
 endmodule