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	Commit message (Expand)	Author	Age	Files	Lines
*	Reorganize clueboard into a single directory (#1855)	skullydazed	2017-10-17	6	-341/+0
*	Make arguments redo, subproject elimination (#1784)	Jack Humbert	2017-10-14	2	-4/+1
*	Clueboard 60% support (#1746)	skullydazed	2017-09-29	7	-0/+344

generated by cgit v1.2.3 (git 2.25.1) at 2025-09-28 19:55:06 +0000

/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
 *
 *  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.
 *
 */

module VCC (output V);
   assign V = 1'b1;
endmodule // VCC

module GND (output G);
   assign G = 1'b0;
endmodule // GND

/* Altera Cyclone IV (GX) devices Input Buffer Primitive */
module cycloneiv_io_ibuf
  (output o, input i, input ibar);
   assign ibar = ibar;
   assign o    = i;
endmodule // fiftyfivenm_io_ibuf

/* Altera Cyclone IV (GX)  devices Output Buffer Primitive */
module cycloneiv_io_obuf
  (output o, input i, input oe);
   assign o  = i;
   assign oe = oe;
endmodule // fiftyfivenm_io_obuf

/* Altera Cyclone IV (GX) 4-input non-fracturable LUT Primitive */
module cycloneiv_lcell_comb
  (output combout, cout,
   input dataa, datab, datac, datad, cin);

   /* Internal parameters which define the behaviour
    of the LUT primitive.
    lut_mask define the lut function, can be expressed in 16-digit bin or hex.
    sum_lutc_input define the type of LUT (combinational | arithmetic).
    dont_touch for retiming || carry options.
    lpm_type for WYSIWYG */

   parameter lut_mask = 16'hFFFF;
   parameter dont_touch = "off";
   parameter lpm_type = "cycloneiv_lcell_comb";
   parameter sum_lutc_input = "datac";

   reg [1:0] lut_type;
   reg       cout_rt;
   reg       combout_rt;
   wire      dataa_w;
   wire      datab_w;
   wire      datac_w;
   wire      datad_w;
   wire      cin_w;

   assign dataa_w = dataa;
   assign datab_w = datab;
   assign datac_w = datac;
   assign datad_w = datad;

   function lut_data;
      input [15:0] mask;
      input        dataa, datab, datac, datad;
      reg [7:0]    s3;
      reg [3:0]    s2;
      reg [1:0]    s1;
      begin
         s3 = datad ? mask[15:8] : mask[7:0];
         s2 = datac ?   s3[7:4]  :   s3[3:0];
         s1 = datab ?   s2[3:2]  :   s2[1:0];
         lut_data = dataa ? s1[1] : s1[0];
      end

   endfunction

   initial begin
      if (sum_lutc_input == "datac") lut_type = 0;
      else
        if (sum_lutc_input == "cin")   lut_type = 1;
        else begin
           $error("Error in sum_lutc_input. Parameter %s is not a valid value.\n", sum_lutc_input);
           $finish();
        end
   end

   always @(dataa_w or datab_w or datac_w or datad_w or cin_w) begin
      if (lut_type == 0) begin // logic function
         combout_rt = lut_data(lut_mask, dataa_w, datab_w,
                               datac_w, datad_w);
      end
      else if (lut_type == 1) begin // arithmetic function
         combout_rt = lut_data(lut_mask, dataa_w, datab_w,
                               cin_w, datad_w);
      end
      cout_rt = lut_data(lut_mask, dataa_w, datab_w, cin_w, 'b0);
   end

   assign combout = combout_rt & 1'b1;
   assign cout = cout_rt & 1'b1;

endmodule // cycloneiv_lcell_comb

/* Altera D Flip-Flop Primitive */
module dffeas
  (output q,
   input d, clk, clrn, prn, ena,
   input asdata, aload, sclr, sload);

   // Timing simulation is not covered
   parameter power_up="dontcare";
   parameter is_wysiwyg="false";

   reg   q_tmp;
   wire  reset;
   reg [7:0] debug_net;

   assign reset       = (prn && sclr && ~clrn && ena);
   assign q           = q_tmp & 1'b1;

   always @(posedge clk, posedge aload) begin
      if(reset)        q_tmp <= 0;
      else q_tmp <= d;
   end
   assign q = q_tmp;

endmodule // dffeas

/* Cyclone IV GX altpll clearbox model */
(* blackbox *)
module cycloneiv_pll
  (inclk,
   fbin,
   fbout,
   clkswitch,
   areset,
   pfdena,
   scanclk,
   scandata,
   scanclkena,
   configupdate,
   clk,
   phasecounterselect,
   phaseupdown,
   phasestep,
   clkbad,
   activeclock,
   locked,
   scandataout,
   scandone,
   phasedone,
   vcooverrange,
   vcounderrange,
   fref,
   icdrclk);

   parameter operation_mode                = "normal";
   parameter pll_type                      = "auto";
   parameter compensate_clock              = "clock0";
   parameter inclk0_input_frequency        = 0;
   parameter inclk1_input_frequency        = 0;
   parameter self_reset_on_loss_lock       = "off";
   parameter switch_over_type              = "auto";
   parameter switch_over_counter           = 1;
   parameter enable_switch_over_counter    = "off";
   parameter bandwidth                     = 0;
   parameter bandwidth_type                = "auto";
   parameter use_dc_coupling               = "false";
   parameter lock_high = 0;
   parameter lock_low = 0;
   parameter lock_window_ui                = "0.05";
   parameter test_bypass_lock_detect       = "off";
   parameter clk0_output_frequency         = 0;
   parameter clk0_multiply_by              = 0;
   parameter clk0_divide_by                = 0;
   parameter clk0_phase_shift              = "0";
   parameter clk0_duty_cycle               = 50;
   parameter clk1_output_frequency         = 0;
   parameter clk1_multiply_by              = 0;
   parameter clk1_divide_by                = 0;
   parameter clk1_phase_shift              = "0";
   parameter clk1_duty_cycle               = 50;
   parameter clk2_output_frequency         = 0;
   parameter clk2_multiply_by              = 0;
   parameter clk2_divide_by                = 0;
   parameter clk2_phase_shift              = "0";
   parameter clk2_duty_cycle               = 50;
   parameter clk3_output_frequency         = 0;
   parameter clk3_multiply_by              = 0;
   parameter clk3_divide_by                = 0;
   parameter clk3_phase_shift              = "0";
   parameter clk3_duty_cycle               = 50;
   parameter clk4_output_frequency         = 0;
   parameter clk4_multiply_by              = 0;
   parameter clk4_divide_by                = 0;
   parameter clk4_phase_shift              = "0";
   parameter clk4_duty_cycle               = 50;
   parameter pfd_min                       = 0;
   parameter pfd_max                       = 0;
   parameter vco_min                       = 0;
   parameter vco_max                       = 0;
   parameter vco_center                    = 0;
   // Advanced user parameters
   parameter m_initial = 1;
   parameter m = 0;
   parameter n = 1;
   parameter c0_high = 1;
   parameter c0_low = 1;
   parameter c0_initial = 1;
   parameter c0_mode = "bypass";
   parameter c0_ph = 0;
   parameter c1_high = 1;
   parameter c1_low = 1;
   parameter c1_initial = 1;
   parameter c1_mode = "bypass";
   parameter c1_ph = 0;
   parameter c2_high = 1;
   parameter c2_low = 1;
   parameter c2_initial = 1;
   parameter c2_mode = "bypass";
   parameter c2_ph = 0;
   parameter c3_high = 1;
   parameter c3_low = 1;
   parameter c3_initial = 1;
   parameter c3_mode = "bypass";
   parameter c3_ph = 0;
   parameter c4_high = 1;
   parameter c4_low = 1;
   parameter c4_initial = 1;
   parameter c4_mode = "bypass";
   parameter c4_ph = 0;
   parameter m_ph = 0;
   parameter clk0_counter = "unused";
   parameter clk1_counter = "unused";
   parameter clk2_counter = "unused";
   parameter clk3_counter = "unused";
   parameter clk4_counter = "unused";
   parameter c1_use_casc_in = "off";
   parameter c2_use_casc_in = "off";
   parameter c3_use_casc_in = "off";
   parameter c4_use_casc_in = "off";
   parameter m_test_source  = -1;
   parameter c0_test_source = -1;
   parameter c1_test_source = -1;
   parameter c2_test_source = -1;
   parameter c3_test_source = -1;
   parameter c4_test_source = -1;
   parameter vco_multiply_by = 0;
   parameter vco_divide_by = 0;
   parameter vco_post_scale = 1;
   parameter vco_frequency_control = "auto";
   parameter vco_phase_shift_step = 0;
   parameter charge_pump_current = 10;
   parameter loop_filter_r = "1.0";
   parameter loop_filter_c = 0;
   parameter pll_compensation_delay = 0;
   parameter lpm_type = "cycloneiv_pll";
   parameter phase_counter_select_width = 3;

   input [1:0] inclk;
   input       fbin;
   input       clkswitch;
   input       areset;
   input       pfdena;
   input [phase_counter_select_width - 1:0] phasecounterselect;
   input                                    phaseupdown;
   input                                    phasestep;
   input                                    scanclk;
   input                                    scanclkena;
   input                                    scandata;
   input                                    configupdate;

   output [4:0]                             clk;
   output [1:0]                             clkbad;
   output                                   activeclock;
   output                                   locked;
   output                                   scandataout;
   output                                   scandone;
   output                                   fbout;
   output                                   phasedone;
   output                                   vcooverrange;
   output                                   vcounderrange;
   output                                   fref;
   output                                   icdrclk;

endmodule // cycloneive_pll