58 lines
2.6 KiB
Systemverilog
58 lines
2.6 KiB
Systemverilog
// SPDX-License-Identifier: Apache-2.0
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// Copyright 2019 Western Digital Corporation or its affiliates.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//********************************************************************************
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// $Id$
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//
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//
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// Owner:
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// Function: DEC Trigger Logic
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// Comments:
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//
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//********************************************************************************
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module dec_trigger
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import swerv_types::*;
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(
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input logic clk,
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input logic rst_l,
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input 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
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input logic [31:1] dec_i0_pc_d, // i0 pc
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input logic [31:1] dec_i1_pc_d, // i1 pc
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output logic [3:0] dec_i0_trigger_match_d,
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output logic [3:0] dec_i1_trigger_match_d
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);
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logic [3:0][31:0] dec_i0_match_data;
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logic [3:0] dec_i0_trigger_data_match;
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logic [3:0][31:0] dec_i1_match_data;
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logic [3:0] dec_i1_trigger_data_match;
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for (genvar i=0; i<4; i++) begin
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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
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assign dec_i1_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select & trigger_pkt_any[i].execute}} & {dec_i1_pc_d[31:1], trigger_pkt_any[i].tdata2[0]} ); // select=0; do a PC match
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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]));
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rvmaskandmatch trigger_i1_match (.mask(trigger_pkt_any[i].tdata2[31:0]), .data(dec_i1_match_data[i][31:0]), .masken(trigger_pkt_any[i].match), .match(dec_i1_trigger_data_match[i]));
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assign dec_i0_trigger_match_d[i] = trigger_pkt_any[i].execute & trigger_pkt_any[i].m & dec_i0_trigger_data_match[i];
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assign dec_i1_trigger_match_d[i] = trigger_pkt_any[i].execute & trigger_pkt_any[i].m & dec_i1_trigger_data_match[i];
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end
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endmodule // dec_trigger
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