refactoring

1 files changed, 17 insertions, 0 deletions

diff --git a/src/instruction_reg.v b/src/instruction_reg.v
new file mode 100644
index 0000000..f3f456e
--- /dev/null
+++ b/src/instruction_reg.v
@@ -0,0 +1,17 @@
+module instruction_reg (
+  input clk, rstn, we,
+  input [31:0] pc_in, instr_in,
+  output reg [31:0] pc_buf, instr
+);
+
+always @ (posedge clk) begin
+  if (!rstn) begin
+    pc_buf <= 32'b0;
+    instr  <= 32'b0;
+  end else if (we) begin
+    pc_buf <= pc_in;
+    instr  <= instr_in;
+  end
+end
+
+endmodule