LKG Build (reset network update -fmax=236 mhz 4c)

hw/rtl/libs/VX_reset_relay.v

@@ -1,26 +1,31 @@
 `include "VX_platform.vh"
 
-`TRACING_OFF
 module VX_reset_relay #(
-    parameter ASYNC = 0
+    parameter N     = 1,
+    parameter DEPTH = 1
 ) (
     input wire  clk,
     input wire  reset,
-    output wire reset_o
+    output wire [N-1:0] reset_o
 ); 
-    (* preserve *) reg reset_r;
     
-    if (ASYNC) begin
-        always @(posedge clk or posedge reset) begin
-            reset_r <= reset;
-        end
-    end else begin
+    if (DEPTH > 1) begin
+        `PRESERVE_REG `DISABLE_BRAM reg [N-1:0] reset_r [DEPTH-1:0];
         always @(posedge clk) begin
-            reset_r <= reset;
+            for (integer i = DEPTH-1; i > 0; --i)
+                reset_r[i] <= reset_r[i-1];
+            reset_r[0] <= {N{reset}};
+        end       
+        assign reset_o = reset_r[DEPTH-1];
+    end else if (DEPTH == 1) begin
+        `PRESERVE_REG reg [N-1:0] reset_r;
+        always @(posedge clk) begin
+            reset_r <= {N{reset}};
         end
+        assign reset_o = reset_r;
+    end else begin
+        `UNUSED_VAR (clk)
+        assign reset_o = {N{reset}};
     end
-
-    assign reset_o = reset_r;
   
-endmodule
-`TRACING_ON
+endmodule