//+FHDR--------------------------------------------------------------------------------------------------------
//  Company: 
//-----------------------------------------------------------------------------------------------------------------
//  File Name             :    qbmcu_datalatch.v
//  Department            :    
//  Author                :    PWY
//  Author's Tel          :     
//-----------------------------------------------------------------------------------------------------------------
//  Relese History
//  Version     Date            Author          Description
//  0.1         2024-03-13      PWY             The operation of latch and hold, eliminating invalid toggling to 
//                                              reduce dynamic power consumption.
//-----------------------------------------------------------------------------------------------------------------
//  Keywords            :       
//
//-----------------------------------------------------------------------------------------------------------------
//  Parameter
//
//-----------------------------------------------------------------------------------------------------------------
//  Purpose                 :
//                      
//-----------------------------------------------------------------------------------------------------------------
//  Target Device:        
//  Tool versions:        
//-----------------------------------------------------------------------------------------------------------------
//  Reuse Issues
//  Reset Strategy: 
//  Clock Domains: 
//  Critical Timing:
//  Asynchronous I/F:
//  Synthesizable (y/n): 
//  Other:
//-FHDR--------------------------------------------------------------------------------------------------------
                                                                         

`include "qbmcu_defines.v"

module qbmcu_datalatch #(
   parameter DECINFO_GRP_OP  = `QBMCU_DECINFO_GRP_AGU )
  (
   input  [`QBMCU_XLEN-1          :0] i_rs1
  ,input  [`QBMCU_XLEN-1          :0] i_rs2
  ,input  [`QBMCU_XLEN-1          :0] i_imm
  ,input  [`QBMCU_DECINFO_WIDTH-1 :0] i_info
  ,input  [`QBMCU_PC_SIZE-1       :0] i_pc
  ,input                              i_ilegl
                                  
  ,output [`QBMCU_XLEN-1          :0] o_rs1
  ,output [`QBMCU_XLEN-1          :0] o_rs2
  ,output [`QBMCU_XLEN-1          :0] o_imm
  ,output [`QBMCU_DECINFO_WIDTH-1 :0] o_info
  ,output [`QBMCU_PC_SIZE-1       :0] o_pc
  ,output                             o_op
  );
  
  
wire  op = (~i_ilegl) & (i_info[`QBMCU_DECINFO_GRP] == DECINFO_GRP_OP);


assign o_rs1  = {`QBMCU_XLEN         {op}} & i_rs1  ;
assign o_rs2  = {`QBMCU_XLEN         {op}} & i_rs2  ;
assign o_imm  = {`QBMCU_XLEN         {op}} & i_imm  ;
assign o_info = {`QBMCU_DECINFO_WIDTH{op}} & i_info ;
assign o_pc   = {`QBMCU_PC_SIZE      {op}} & i_pc   ;

assign o_op   = op;

endmodule
`include "qbmcu_undefines.v"