Vortex 2.0 changes:

+ Microarchitecture optimizations
+ 64-bit support
+ Xilinx FPGA support
+ LLVM-16 support
+ Refactoring and quality control fixes

hw/rtl/libs/VX_elastic_adapter.sv

@@ -0,0 +1,53 @@
+// Copyright © 2019-2023
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+`include "VX_platform.vh"
+
+`TRACING_OFF
+module VX_elastic_adapter (
+    input wire  clk,
+    input wire  reset,
+
+    input wire  valid_in,
+    output wire ready_in,
+        
+    input wire  ready_out,
+    output wire valid_out,
+
+    input wire  busy,
+    output wire strobe
+);
+    wire push = valid_in && ready_in;
+    wire pop = valid_out && ready_out;
+
+    reg loaded;
+
+    always @(posedge clk) begin
+        if (reset) begin
+            loaded  <= 0;
+        end else begin
+            if (push) begin
+                loaded <= 1;
+            end
+            if (pop) begin                
+                loaded <= 0;
+            end
+        end
+    end
+
+    assign ready_in  = ~loaded;
+    assign valid_out = loaded && ~busy;
+    assign strobe    = push;
+
+endmodule
+`TRACING_ON