// SPDX-License-Identifier: Apache-2.0
// Copyright 2020 Western Digital Corporation or its affiliates.
//
// 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.

//********************************************************************************
// $Id$
//
//
// Owner:
// Function: DEC Trigger Logic
// Comments:
//
//********************************************************************************
module el2_dec_trigger
  import el2_pkg::*;
#(
    `include "el2_param.vh"
) (

    input el2_trigger_pkt_t [3:0] trigger_pkt_any,           // Packet from tlu. 'select':0-pc,1-Opcode  'Execute' needs to be set for dec triggers to fire. 'match'-1 do mask, 0: full match
    input logic [31:1] dec_i0_pc_d,  // i0 pc

    output logic [3:0] dec_i0_trigger_match_d  // Trigger match
);

  logic [3:0][31:0] dec_i0_match_data;
  logic [3:0]       dec_i0_trigger_data_match;

  for (genvar i = 0; i < 4; i++) begin
    assign dec_i0_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select & trigger_pkt_any[i].execute}} & {dec_i0_pc_d[31:1], trigger_pkt_any[i].tdata2[0]});      // select=0; do a PC match

    rvmaskandmatch trigger_i0_match (
        .mask  (trigger_pkt_any[i].tdata2[31:0]),
        .data  (dec_i0_match_data[i][31:0]),
        .masken(trigger_pkt_any[i].match),
        .match (dec_i0_trigger_data_match[i])
    );

    assign dec_i0_trigger_match_d[i] = trigger_pkt_any[i].execute & trigger_pkt_any[i].m & dec_i0_trigger_data_match[i];
  end

endmodule  // el2_dec_trigger