demo.v « gowin « examples - iCE40/yosys - clone of https://github.com/YosysHQ/yosys

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module demo (
	input clk,
	input [3:0] sw,
	output [15:0] leds,
	output [7:0] seg7dig,
	output [3:0] seg7sel
);
	localparam PRESCALE = 20;
	reg [PRESCALE+3:0] counter = 0;
	always @(posedge clk) counter <= counter + 1;
	assign leds = 1 << counter[PRESCALE +: 4];
endmodule

ral.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */

/*
 *  nextpnr -- Next Generation Place and Route
 *
 *  Copyright (C) 2018  Miodrag Milanovic <miodrag@symbioticeda.com>
 *
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#ifndef WORKER_H
#define WORKER_H

#include <QMutex>
#include <QThread>
#include "nextpnr.h"

NEXTPNR_NAMESPACE_BEGIN

class TaskManager;

class Worker : public QObject
{
    Q_OBJECT
  public:
    explicit Worker(TaskManager *parent);
  public Q_SLOTS:
    void newContext(Context *);
    void loadfile(const std::string &);
    void loadpcf(const std::string &);
    void saveasc(const std::string &);
    void pack();
    void budget(double freq);
    void place(bool timing_driven);
    void route();
  Q_SIGNALS:
    void log(const std::string &text);
    void loadfile_finished(bool status);
    void loadpcf_finished(bool status);
    void saveasc_finished(bool status);
    void pack_finished(bool status);
    void budget_finish(bool status);
    void place_finished(bool status);
    void route_finished(bool status);
    void taskCanceled();
    void taskStarted();
    void taskPaused();

  private:
    Context *ctx;
};

class TaskManager : public QObject
{
    Q_OBJECT
    QThread workerThread;

  public:
    explicit TaskManager();
    ~TaskManager();
    bool shouldTerminate();
    void clearTerminate();
    bool isPaused();
  public Q_SLOTS:
    void info(const std::string &text);
    void terminate_thread();
    void pause_thread();
    void continue_thread();
  Q_SIGNALS:
    void contextChanged(Context *ctx);
    void terminate();
    void loadfile(const std::string &);
    void loadpcf(const std::string &);
    void saveasc(const std::string &);
    void pack();
    void budget(double freq);
    void place(bool timing_driven);
    void route();

    // redirected signals
    void log(const std::string &text);
    void loadfile_finished(bool status);
    void loadpcf_finished(bool status);
    void saveasc_finished(bool status);
    void pack_finished(bool status);
    void budget_finish(bool status);
    void place_finished(bool status);
    void route_finished(bool status);
    void taskCanceled();
    void taskStarted();
    void taskPaused();

  private:
    QMutex mutex;
    bool toTerminate;
    bool toPause;
};

NEXTPNR_NAMESPACE_END

#endif // WORKER_H