/*****************************************//**        8bit RISC MCU desing         **//**            ir module                **//**            BY yuzhijie              **//**            2006.10.22               **//*****************************************/`timescale 1ns/100psmodule ir(instruction,reset,clk1,ir_jump,ir_out);    input clk1,reset,ir_jump;       //jump ena    input [11:0]instruction;      output [11:0]ir_out;      //ir's output    reg [11:0]ir_out;        always@(posedge clk1 or reset)    begin        if(reset)        begin            ir_out<=12'b0000_0000_0000;        end        else if(ir_jump==1)        begin            ir_out<=12'b0000_0000_0000;    //nop        end        else        begin            ir_out<=instruction;        end    endendmodule