RTL code refactoring

hw/rtl/interfaces/VX_gpr_jal_if.v

@@ -0,0 +1,13 @@
+`ifndef VX_GPR_JAL_INTER
+`define VX_GPR_JAL_INTER
+
+`include "../VX_define.vh"
+
+interface VX_gpr_jal_if ();
+
+	wire       is_jal;
+	wire[31:0] curr_PC;
+	
+endinterface
+
+`endif