DSP48E2.v

///////////////////////////////////////////////////////////////////////////////
//  Copyright (c) 1995/2017 Xilinx, Inc.
//  All Right Reserved.
///////////////////////////////////////////////////////////////////////////////
//   ____  ____
//  /   /\/   /
// /___/  \  /     Vendor      : Xilinx
// \   \   \/      Version     : 2017.3
//  \   \          Description : Xilinx Unified Simulation Library Component
//  /   /                        48-bit Multi-Functional Arithmetic Block
// /___/   /\      Filename    : DSP48E2.v
// \   \  /  \
//  \___\/\___\
//
///////////////////////////////////////////////////////////////////////////////
//  Revision:
//  07/15/12 - Migrate from E1.
//  12/10/12 - Add dynamic registers
//  01/10/13 - 694456 - DIN_in/D_in connectivity issue
//  01/11/13 - DIN, D_DATA data width change (26/24) sync4 yml
//  02/13/13 - PCIN_47A change from internal feedback to PCIN(47) pin
//  03/06/13 - 701316 - A_B_reg no clk when REG=0
//  04/03/13 - yaml update
//  04/08/13 - 710304 - AREG, BREG, ACASCREG and BCASCREG dynamic registers mis sized.
//  04/22/13 - 714213 - ACOUT, BCOUT wrong logic
//  04/22/13 - 713695 - Zero mult result on USE_SIMD
//  04/22/13 - 713617 - CARRYCASCOUT behaviour
//  04/23/13 - 714772 - remove sensitivity to negedge GSR
//  04/23/13 - 713706 - change P_PDBK connection
//  05/07/13 - 716896 - AREG, BREG, ACASCREG and BCASCREG localparams mis sized.
//  05/07/13 - 716896 - ALUMODE/OPMODE_INV_REG mis sized
//  05/07/13 - 716896 - INMODE_INV_REG mis sized
//  05/07/13 - x_mac_cascd missing for sensitivity list.
//  10/22/14 - 808642 - Added #1 to $finish
//  End Revision:
///////////////////////////////////////////////////////////////////////////////

`timescale 1 ps / 1 ps

/* verilator lint_off STMTDLY */
/* verilator lint_off WIDTH */
/* verilator lint_off UNOPTFLAT */

/* makes verilator unhappy */
// `celldefine

module DSP48E2 #(
`ifdef XIL_TIMING
  parameter LOC = "UNPLACED",
`endif
  parameter integer ACASCREG = 1,
  parameter integer ADREG = 1,
  parameter integer ALUMODEREG = 1,
  parameter AMULTSEL = "A",
  parameter integer AREG = 1,
  parameter AUTORESET_PATDET = "NO_RESET",
  parameter AUTORESET_PRIORITY = "RESET",
  parameter A_INPUT = "DIRECT",
  parameter integer BCASCREG = 1,
  parameter BMULTSEL = "B",
  parameter integer BREG = 1,
  parameter B_INPUT = "DIRECT",
  parameter integer CARRYINREG = 1,
  parameter integer CARRYINSELREG = 1,
  parameter integer CREG = 1,
  parameter integer DREG = 1,
  parameter integer INMODEREG = 1,
  parameter [3:0] IS_ALUMODE_INVERTED = 4'b0000,
  parameter [0:0] IS_CARRYIN_INVERTED = 1'b0,
  parameter [0:0] IS_CLK_INVERTED = 1'b0,
  parameter [4:0] IS_INMODE_INVERTED = 5'b00000,
  parameter [8:0] IS_OPMODE_INVERTED = 9'b000000000,
  parameter [0:0] IS_RSTALLCARRYIN_INVERTED = 1'b0,
  parameter [0:0] IS_RSTALUMODE_INVERTED = 1'b0,
  parameter [0:0] IS_RSTA_INVERTED = 1'b0,
  parameter [0:0] IS_RSTB_INVERTED = 1'b0,
  parameter [0:0] IS_RSTCTRL_INVERTED = 1'b0,
  parameter [0:0] IS_RSTC_INVERTED = 1'b0,
  parameter [0:0] IS_RSTD_INVERTED = 1'b0,
  parameter [0:0] IS_RSTINMODE_INVERTED = 1'b0,
  parameter [0:0] IS_RSTM_INVERTED = 1'b0,
  parameter [0:0] IS_RSTP_INVERTED = 1'b0,
  parameter [47:0] MASK = 48'h3FFFFFFFFFFF,
  parameter integer MREG = 1,
  parameter integer OPMODEREG = 1,
  parameter [47:0] PATTERN = 48'h000000000000,
  parameter PREADDINSEL = "A",
  parameter integer PREG = 1,
  parameter [47:0] RND = 48'h000000000000,
  parameter SEL_MASK = "MASK",
  parameter SEL_PATTERN = "PATTERN",
  parameter USE_MULT = "MULTIPLY",
  parameter USE_PATTERN_DETECT = "NO_PATDET",
  parameter USE_SIMD = "ONE48",
  parameter USE_WIDEXOR = "FALSE",
  parameter XORSIMD = "XOR24_48_96"
)(
  output [29:0] ACOUT,
  output [17:0] BCOUT,
  output CARRYCASCOUT,
  output [3:0] CARRYOUT,
  output MULTSIGNOUT,
  output OVERFLOW_renamed,
  output [47:0] P,
  output PATTERNBDETECT,
  output PATTERNDETECT,
  output [47:0] PCOUT,
  output UNDERFLOW_renamed,
  output [7:0] XOROUT,

  input [29:0] A,
  input [29:0] ACIN,
  input [3:0] ALUMODE,
  input [17:0] B,
  input [17:0] BCIN,
  input [47:0] C,
  input CARRYCASCIN,
  input CARRYIN,
  input [2:0] CARRYINSEL,
  input CEA1,
  input CEA2,
  input CEAD,
  input CEALUMODE,
  input CEB1,
  input CEB2,
  input CEC,
  input CECARRYIN,
  input CECTRL,
  input CED,
  input CEINMODE,
  input CEM,
  input CEP,
  input CLK,
  input [26:0] D,
  input [4:0] INMODE,
  input MULTSIGNIN,
  input [8:0] OPMODE,
  input [47:0] PCIN,
  input RSTA,
  input RSTALLCARRYIN,
  input RSTALUMODE,
  input RSTB,
  input RSTC,
  input RSTCTRL,
  input RSTD,
  input RSTINMODE,
  input RSTM,
  input RSTP
);

// define constants
  localparam MODULE_NAME = "DSP48E2";

// Parameter encodings and registers
  localparam AMULTSEL_A = 0;
  localparam AMULTSEL_AD = 1;
  localparam AUTORESET_PATDET_NO_RESET = 0;
  localparam AUTORESET_PATDET_RESET_MATCH = 1;
  localparam AUTORESET_PATDET_RESET_NOT_MATCH = 2;
  localparam AUTORESET_PRIORITY_CEP = 1;
  localparam AUTORESET_PRIORITY_RESET = 0;
  localparam A_INPUT_CASCADE = 1;
  localparam A_INPUT_DIRECT = 0;
  localparam BMULTSEL_AD = 1;
  localparam BMULTSEL_B = 0;
  localparam B_INPUT_CASCADE = 1;
  localparam B_INPUT_DIRECT = 0;
  localparam PREADDINSEL_A = 0;
  localparam PREADDINSEL_B = 1;
  localparam SEL_MASK_C = 1;
  localparam SEL_MASK_MASK = 0;
  localparam SEL_MASK_ROUNDING_MODE1 = 2;
  localparam SEL_MASK_ROUNDING_MODE2 = 3;
  localparam SEL_PATTERN_C = 1;
  localparam SEL_PATTERN_PATTERN = 0;
  localparam USE_MULT_DYNAMIC = 1;
  localparam USE_MULT_MULTIPLY = 0;
  localparam USE_MULT_NONE = 2;
  localparam USE_PATTERN_DETECT_NO_PATDET = 0;
  localparam USE_PATTERN_DETECT_PATDET = 1;
  localparam USE_SIMD_FOUR12 = 1;
  localparam USE_SIMD_ONE48 = 0;
  localparam USE_SIMD_TWO24 = 2;
  localparam USE_WIDEXOR_FALSE = 0;
  localparam USE_WIDEXOR_TRUE = 1;
  localparam XORSIMD_XOR12 = 1;
  localparam XORSIMD_XOR24_48_96 = 0;

  reg trig_attr = 1'b0;
// include dynamic registers - XILINX test only
`ifdef XIL_DR
  `include "DSP48E2_dr.v"
`else
  localparam [31:0] ACASCREG_REG = ACASCREG;
  localparam [31:0] ADREG_REG = ADREG;
  localparam [31:0] ALUMODEREG_REG = ALUMODEREG;
  localparam [16:1] AMULTSEL_REG = AMULTSEL;
  localparam [31:0] AREG_REG = AREG;
  localparam [120:1] AUTORESET_PATDET_REG = AUTORESET_PATDET;
  localparam [40:1] AUTORESET_PRIORITY_REG = AUTORESET_PRIORITY;
  localparam [56:1] A_INPUT_REG = A_INPUT;
  localparam [31:0] BCASCREG_REG = BCASCREG;
  localparam [16:1] BMULTSEL_REG = BMULTSEL;
  localparam [31:0] BREG_REG = BREG;
  localparam [56:1] B_INPUT_REG = B_INPUT;
  localparam [31:0] CARRYINREG_REG = CARRYINREG;
  localparam [31:0] CARRYINSELREG_REG = CARRYINSELREG;
  localparam [31:0] CREG_REG = CREG;
  localparam [31:0] DREG_REG = DREG;
  localparam [31:0] INMODEREG_REG = INMODEREG;
  localparam [3:0] IS_ALUMODE_INVERTED_REG = IS_ALUMODE_INVERTED;
  localparam [0:0] IS_CARRYIN_INVERTED_REG = IS_CARRYIN_INVERTED;
  localparam [0:0] IS_CLK_INVERTED_REG = IS_CLK_INVERTED;
  localparam [4:0] IS_INMODE_INVERTED_REG = IS_INMODE_INVERTED;
  localparam [8:0] IS_OPMODE_INVERTED_REG = IS_OPMODE_INVERTED;
  localparam [0:0] IS_RSTALLCARRYIN_INVERTED_REG = IS_RSTALLCARRYIN_INVERTED;
  localparam [0:0] IS_RSTALUMODE_INVERTED_REG = IS_RSTALUMODE_INVERTED;
  localparam [0:0] IS_RSTA_INVERTED_REG = IS_RSTA_INVERTED;
  localparam [0:0] IS_RSTB_INVERTED_REG = IS_RSTB_INVERTED;
  localparam [0:0] IS_RSTCTRL_INVERTED_REG = IS_RSTCTRL_INVERTED;
  localparam [0:0] IS_RSTC_INVERTED_REG = IS_RSTC_INVERTED;
  localparam [0:0] IS_RSTD_INVERTED_REG = IS_RSTD_INVERTED;
  localparam [0:0] IS_RSTINMODE_INVERTED_REG = IS_RSTINMODE_INVERTED;
  localparam [0:0] IS_RSTM_INVERTED_REG = IS_RSTM_INVERTED;
  localparam [0:0] IS_RSTP_INVERTED_REG = IS_RSTP_INVERTED;
  localparam [47:0] MASK_REG = MASK;
  localparam [31:0] MREG_REG = MREG;
  localparam [31:0] OPMODEREG_REG = OPMODEREG;
  localparam [47:0] PATTERN_REG = PATTERN;
  localparam [8:1] PREADDINSEL_REG = PREADDINSEL;
  localparam [31:0] PREG_REG = PREG;
  localparam [47:0] RND_REG = RND;
  localparam [112:1] SEL_MASK_REG = SEL_MASK;
  localparam [56:1] SEL_PATTERN_REG = SEL_PATTERN;
  localparam [64:1] USE_MULT_REG = USE_MULT;
  localparam [72:1] USE_PATTERN_DETECT_REG = USE_PATTERN_DETECT;
  localparam [48:1] USE_SIMD_REG = USE_SIMD;
  localparam [40:1] USE_WIDEXOR_REG = USE_WIDEXOR;
  localparam [88:1] XORSIMD_REG = XORSIMD;
`endif

`ifdef XIL_XECLIB
  wire [1:0] ACASCREG_BIN;
  wire ADREG_BIN;
  wire ALUMODEREG_BIN;
  wire AMULTSEL_BIN;
  wire [1:0] AREG_BIN;
  wire [1:0] AUTORESET_PATDET_BIN;
  wire AUTORESET_PRIORITY_BIN;
  wire A_INPUT_BIN;
  wire [1:0] BCASCREG_BIN;
  wire BMULTSEL_BIN;
  wire [1:0] BREG_BIN;
  wire B_INPUT_BIN;
  wire CARRYINREG_BIN;
  wire CARRYINSELREG_BIN;
  wire CREG_BIN;
  wire DREG_BIN;
  wire INMODEREG_BIN;
  wire MREG_BIN;
  wire OPMODEREG_BIN;
  wire PREADDINSEL_BIN;
  wire PREG_BIN;
  wire [1:0] SEL_MASK_BIN;
  wire SEL_PATTERN_BIN;
  wire [1:0] USE_MULT_BIN;
  wire USE_PATTERN_DETECT_BIN;
  wire [1:0] USE_SIMD_BIN;
  wire USE_WIDEXOR_BIN;
  wire XORSIMD_BIN;
`else
  reg [1:0] ACASCREG_BIN;
  reg ADREG_BIN;
  reg ALUMODEREG_BIN;
  reg AMULTSEL_BIN;
  reg [1:0] AREG_BIN;
  reg [1:0] AUTORESET_PATDET_BIN;
  reg AUTORESET_PRIORITY_BIN;
  reg A_INPUT_BIN;
  reg [1:0] BCASCREG_BIN;
  reg BMULTSEL_BIN;
  reg [1:0] BREG_BIN;
  reg B_INPUT_BIN;
  reg CARRYINREG_BIN;
  reg CARRYINSELREG_BIN;
  reg CREG_BIN;
  reg DREG_BIN;
  reg INMODEREG_BIN;
  reg MREG_BIN;
  reg OPMODEREG_BIN;
  reg PREADDINSEL_BIN;
  reg PREG_BIN;
  reg [1:0] SEL_MASK_BIN;
  reg SEL_PATTERN_BIN;
  reg [1:0] USE_MULT_BIN;
  reg USE_PATTERN_DETECT_BIN;
  reg [1:0] USE_SIMD_BIN;
  reg USE_WIDEXOR_BIN;
  reg XORSIMD_BIN;
`endif

`ifdef XIL_ATTR_TEST
  reg attr_test = 1'b1;
`else
  reg attr_test = 1'b0;
`endif

  reg attr_err = 1'b0;
  reg glblGSR = 1'b0;
//  tri0 glblGSR = glbl.GSR;

  wire CARRYCASCIN_in;
  wire CARRYIN_in;
  wire CEA1_in;
  wire CEA2_in;
  wire CEAD_in;
  wire CEALUMODE_in;
  wire CEB1_in;
  wire CEB2_in;
  wire CECARRYIN_in;
  wire CECTRL_in;
  wire CEC_in;
  wire CED_in;
  wire CEINMODE_in;
  wire CEM_in;
  wire CEP_in;
  wire CLK_in;
  wire MULTSIGNIN_in;
  wire RSTALLCARRYIN_in;
  wire RSTALUMODE_in;
  wire RSTA_in;
  wire RSTB_in;
  wire RSTCTRL_in;
  wire RSTC_in;
  wire RSTD_in;
  wire RSTINMODE_in;
  wire RSTM_in;
  wire RSTP_in;
  wire [17:0] BCIN_in;
  wire [17:0] B_in;
  wire [26:0] D_in;
  wire [29:0] ACIN_in;
  wire [29:0] A_in;
  wire [2:0] CARRYINSEL_in;
  wire [3:0] ALUMODE_in;
  wire [47:0] C_in;
  wire [47:0] PCIN_in;
  wire [4:0] INMODE_in;
  wire [8:0] OPMODE_in;

  assign ACIN_in = ACIN;
  assign ALUMODE_in[0] = (ALUMODE[0] !== 1'bx) && (ALUMODE[0] ^ IS_ALUMODE_INVERTED_REG[0]); // rv 0
  assign ALUMODE_in[1] = (ALUMODE[1] !== 1'bx) && (ALUMODE[1] ^ IS_ALUMODE_INVERTED_REG[1]); // rv 0
  assign ALUMODE_in[2] = (ALUMODE[2] !== 1'bx) && (ALUMODE[2] ^ IS_ALUMODE_INVERTED_REG[2]); // rv 0
  assign ALUMODE_in[3] = (ALUMODE[3] !== 1'bx) && (ALUMODE[3] ^ IS_ALUMODE_INVERTED_REG[3]); // rv 0
  assign A_in[0] = (A[0] === 1'bx) || A[0]; // rv 1
  assign A_in[10] = (A[10] === 1'bx) || A[10]; // rv 1
  assign A_in[11] = (A[11] === 1'bx) || A[11]; // rv 1
  assign A_in[12] = (A[12] === 1'bx) || A[12]; // rv 1
  assign A_in[13] = (A[13] === 1'bx) || A[13]; // rv 1
  assign A_in[14] = (A[14] === 1'bx) || A[14]; // rv 1
  assign A_in[15] = (A[15] === 1'bx) || A[15]; // rv 1
  assign A_in[16] = (A[16] === 1'bx) || A[16]; // rv 1
  assign A_in[17] = (A[17] === 1'bx) || A[17]; // rv 1
  assign A_in[18] = (A[18] === 1'bx) || A[18]; // rv 1
  assign A_in[19] = (A[19] === 1'bx) || A[19]; // rv 1
  assign A_in[1] = (A[1] === 1'bx) || A[1]; // rv 1
  assign A_in[20] = (A[20] === 1'bx) || A[20]; // rv 1
  assign A_in[21] = (A[21] === 1'bx) || A[21]; // rv 1
  assign A_in[22] = (A[22] === 1'bx) || A[22]; // rv 1
  assign A_in[23] = (A[23] === 1'bx) || A[23]; // rv 1
  assign A_in[24] = (A[24] === 1'bx) || A[24]; // rv 1
  assign A_in[25] = (A[25] === 1'bx) || A[25]; // rv 1
  assign A_in[26] = (A[26] === 1'bx) || A[26]; // rv 1
  assign A_in[27] = (A[27] === 1'bx) || A[27]; // rv 1
  assign A_in[28] = (A[28] === 1'bx) || A[28]; // rv 1
  assign A_in[29] = (A[29] === 1'bx) || A[29]; // rv 1
  assign A_in[2] = (A[2] === 1'bx) || A[2]; // rv 1
  assign A_in[3] = (A[3] === 1'bx) || A[3]; // rv 1
  assign A_in[4] = (A[4] === 1'bx) || A[4]; // rv 1
  assign A_in[5] = (A[5] === 1'bx) || A[5]; // rv 1
  assign A_in[6] = (A[6] === 1'bx) || A[6]; // rv 1
  assign A_in[7] = (A[7] === 1'bx) || A[7]; // rv 1
  assign A_in[8] = (A[8] === 1'bx) || A[8]; // rv 1
  assign A_in[9] = (A[9] === 1'bx) || A[9]; // rv 1
  assign BCIN_in = BCIN;
  assign B_in[0] = (B[0] === 1'bx) || B[0]; // rv 1
  assign B_in[10] = (B[10] === 1'bx) || B[10]; // rv 1
  assign B_in[11] = (B[11] === 1'bx) || B[11]; // rv 1
  assign B_in[12] = (B[12] === 1'bx) || B[12]; // rv 1
  assign B_in[13] = (B[13] === 1'bx) || B[13]; // rv 1
  assign B_in[14] = (B[14] === 1'bx) || B[14]; // rv 1
  assign B_in[15] = (B[15] === 1'bx) || B[15]; // rv 1
  assign B_in[16] = (B[16] === 1'bx) || B[16]; // rv 1
  assign B_in[17] = (B[17] === 1'bx) || B[17]; // rv 1
  assign B_in[1] = (B[1] === 1'bx) || B[1]; // rv 1
  assign B_in[2] = (B[2] === 1'bx) || B[2]; // rv 1
  assign B_in[3] = (B[3] === 1'bx) || B[3]; // rv 1
  assign B_in[4] = (B[4] === 1'bx) || B[4]; // rv 1
  assign B_in[5] = (B[5] === 1'bx) || B[5]; // rv 1
  assign B_in[6] = (B[6] === 1'bx) || B[6]; // rv 1
  assign B_in[7] = (B[7] === 1'bx) || B[7]; // rv 1
  assign B_in[8] = (B[8] === 1'bx) || B[8]; // rv 1
  assign B_in[9] = (B[9] === 1'bx) || B[9]; // rv 1
  assign CARRYCASCIN_in = CARRYCASCIN;
  assign CARRYINSEL_in[0] = (CARRYINSEL[0] !== 1'bx) && CARRYINSEL[0]; // rv 0
  assign CARRYINSEL_in[1] = (CARRYINSEL[1] !== 1'bx) && CARRYINSEL[1]; // rv 0
  assign CARRYINSEL_in[2] = (CARRYINSEL[2] !== 1'bx) && CARRYINSEL[2]; // rv 0
  assign CARRYIN_in = (CARRYIN !== 1'bx) && (CARRYIN ^ IS_CARRYIN_INVERTED_REG); // rv 0
  assign CEA1_in = (CEA1 !== 1'bx) && CEA1; // rv 0
  assign CEA2_in = (CEA2 !== 1'bx) && CEA2; // rv 0
  assign CEAD_in = (CEAD !== 1'bx) && CEAD; // rv 0
  assign CEALUMODE_in = (CEALUMODE !== 1'bx) && CEALUMODE; // rv 0
  assign CEB1_in = (CEB1 !== 1'bx) && CEB1; // rv 0
  assign CEB2_in = (CEB2 !== 1'bx) && CEB2; // rv 0
  assign CECARRYIN_in = (CECARRYIN !== 1'bx) && CECARRYIN; // rv 0
  assign CECTRL_in = (CECTRL !== 1'bx) && CECTRL; // rv 0
  assign CEC_in = (CEC !== 1'bx) && CEC; // rv 0
  assign CED_in = (CED !== 1'bx) && CED; // rv 0
  assign CEINMODE_in = CEINMODE;
  assign CEM_in = (CEM !== 1'bx) && CEM; // rv 0
  assign CEP_in = (CEP !== 1'bx) && CEP; // rv 0
  assign CLK_in = (CLK !== 1'bx) && (CLK ^ IS_CLK_INVERTED_REG); // rv 0
  assign C_in[0] = (C[0] === 1'bx) || C[0]; // rv 1
  assign C_in[10] = (C[10] === 1'bx) || C[10]; // rv 1
  assign C_in[11] = (C[11] === 1'bx) || C[11]; // rv 1
  assign C_in[12] = (C[12] === 1'bx) || C[12]; // rv 1
  assign C_in[13] = (C[13] === 1'bx) || C[13]; // rv 1
  assign C_in[14] = (C[14] === 1'bx) || C[14]; // rv 1
  assign C_in[15] = (C[15] === 1'bx) || C[15]; // rv 1
  assign C_in[16] = (C[16] === 1'bx) || C[16]; // rv 1
  assign C_in[17] = (C[17] === 1'bx) || C[17]; // rv 1
  assign C_in[18] = (C[18] === 1'bx) || C[18]; // rv 1
  assign C_in[19] = (C[19] === 1'bx) || C[19]; // rv 1
  assign C_in[1] = (C[1] === 1'bx) || C[1]; // rv 1
  assign C_in[20] = (C[20] === 1'bx) || C[20]; // rv 1
  assign C_in[21] = (C[21] === 1'bx) || C[21]; // rv 1
  assign C_in[22] = (C[22] === 1'bx) || C[22]; // rv 1
  assign C_in[23] = (C[23] === 1'bx) || C[23]; // rv 1
  assign C_in[24] = (C[24] === 1'bx) || C[24]; // rv 1
  assign C_in[25] = (C[25] === 1'bx) || C[25]; // rv 1
  assign C_in[26] = (C[26] === 1'bx) || C[26]; // rv 1
  assign C_in[27] = (C[27] === 1'bx) || C[27]; // rv 1
  assign C_in[28] = (C[28] === 1'bx) || C[28]; // rv 1
  assign C_in[29] = (C[29] === 1'bx) || C[29]; // rv 1
  assign C_in[2] = (C[2] === 1'bx) || C[2]; // rv 1
  assign C_in[30] = (C[30] === 1'bx) || C[30]; // rv 1
  assign C_in[31] = (C[31] === 1'bx) || C[31]; // rv 1
  assign C_in[32] = (C[32] === 1'bx) || C[32]; // rv 1
  assign C_in[33] = (C[33] === 1'bx) || C[33]; // rv 1
  assign C_in[34] = (C[34] === 1'bx) || C[34]; // rv 1
  assign C_in[35] = (C[35] === 1'bx) || C[35]; // rv 1
  assign C_in[36] = (C[36] === 1'bx) || C[36]; // rv 1
  assign C_in[37] = (C[37] === 1'bx) || C[37]; // rv 1
  assign C_in[38] = (C[38] === 1'bx) || C[38]; // rv 1
  assign C_in[39] = (C[39] === 1'bx) || C[39]; // rv 1
  assign C_in[3] = (C[3] === 1'bx) || C[3]; // rv 1
  assign C_in[40] = (C[40] === 1'bx) || C[40]; // rv 1
  assign C_in[41] = (C[41] === 1'bx) || C[41]; // rv 1
  assign C_in[42] = (C[42] === 1'bx) || C[42]; // rv 1
  assign C_in[43] = (C[43] === 1'bx) || C[43]; // rv 1
  assign C_in[44] = (C[44] === 1'bx) || C[44]; // rv 1
  assign C_in[45] = (C[45] === 1'bx) || C[45]; // rv 1
  assign C_in[46] = (C[46] === 1'bx) || C[46]; // rv 1
  assign C_in[47] = (C[47] === 1'bx) || C[47]; // rv 1
  assign C_in[4] = (C[4] === 1'bx) || C[4]; // rv 1
  assign C_in[5] = (C[5] === 1'bx) || C[5]; // rv 1
  assign C_in[6] = (C[6] === 1'bx) || C[6]; // rv 1
  assign C_in[7] = (C[7] === 1'bx) || C[7]; // rv 1
  assign C_in[8] = (C[8] === 1'bx) || C[8]; // rv 1
  assign C_in[9] = (C[9] === 1'bx) || C[9]; // rv 1
  assign D_in[0] = (D[0] !== 1'bx) && D[0]; // rv 0
  assign D_in[10] = (D[10] !== 1'bx) && D[10]; // rv 0
  assign D_in[11] = (D[11] !== 1'bx) && D[11]; // rv 0
  assign D_in[12] = (D[12] !== 1'bx) && D[12]; // rv 0
  assign D_in[13] = (D[13] !== 1'bx) && D[13]; // rv 0
  assign D_in[14] = (D[14] !== 1'bx) && D[14]; // rv 0
  assign D_in[15] = (D[15] !== 1'bx) && D[15]; // rv 0
  assign D_in[16] = (D[16] !== 1'bx) && D[16]; // rv 0
  assign D_in[17] = (D[17] !== 1'bx) && D[17]; // rv 0
  assign D_in[18] = (D[18] !== 1'bx) && D[18]; // rv 0
  assign D_in[19] = (D[19] !== 1'bx) && D[19]; // rv 0
  assign D_in[1] = (D[1] !== 1'bx) && D[1]; // rv 0
  assign D_in[20] = (D[20] !== 1'bx) && D[20]; // rv 0
  assign D_in[21] = (D[21] !== 1'bx) && D[21]; // rv 0
  assign D_in[22] = (D[22] !== 1'bx) && D[22]; // rv 0
  assign D_in[23] = (D[23] !== 1'bx) && D[23]; // rv 0
  assign D_in[24] = (D[24] !== 1'bx) && D[24]; // rv 0
  assign D_in[25] = (D[25] !== 1'bx) && D[25]; // rv 0
  assign D_in[26] = (D[26] !== 1'bx) && D[26]; // rv 0
  assign D_in[2] = (D[2] !== 1'bx) && D[2]; // rv 0
  assign D_in[3] = (D[3] !== 1'bx) && D[3]; // rv 0
  assign D_in[4] = (D[4] !== 1'bx) && D[4]; // rv 0
  assign D_in[5] = (D[5] !== 1'bx) && D[5]; // rv 0
  assign D_in[6] = (D[6] !== 1'bx) && D[6]; // rv 0
  assign D_in[7] = (D[7] !== 1'bx) && D[7]; // rv 0
  assign D_in[8] = (D[8] !== 1'bx) && D[8]; // rv 0
  assign D_in[9] = (D[9] !== 1'bx) && D[9]; // rv 0
  assign INMODE_in[0] = (INMODE[0] !== 1'bx) && (INMODE[0] ^ IS_INMODE_INVERTED_REG[0]); // rv 0
  assign INMODE_in[1] = (INMODE[1] !== 1'bx) && (INMODE[1] ^ IS_INMODE_INVERTED_REG[1]); // rv 0
  assign INMODE_in[2] = (INMODE[2] !== 1'bx) && (INMODE[2] ^ IS_INMODE_INVERTED_REG[2]); // rv 0
  assign INMODE_in[3] = (INMODE[3] !== 1'bx) && (INMODE[3] ^ IS_INMODE_INVERTED_REG[3]); // rv 0
  assign INMODE_in[4] = (INMODE[4] !== 1'bx) && (INMODE[4] ^ IS_INMODE_INVERTED_REG[4]); // rv 0
  assign MULTSIGNIN_in = MULTSIGNIN;
  assign OPMODE_in[0] = (OPMODE[0] !== 1'bx) && (OPMODE[0] ^ IS_OPMODE_INVERTED_REG[0]); // rv 0
  assign OPMODE_in[1] = (OPMODE[1] !== 1'bx) && (OPMODE[1] ^ IS_OPMODE_INVERTED_REG[1]); // rv 0
  assign OPMODE_in[2] = (OPMODE[2] !== 1'bx) && (OPMODE[2] ^ IS_OPMODE_INVERTED_REG[2]); // rv 0
  assign OPMODE_in[3] = (OPMODE[3] !== 1'bx) && (OPMODE[3] ^ IS_OPMODE_INVERTED_REG[3]); // rv 0
  assign OPMODE_in[4] = (OPMODE[4] !== 1'bx) && (OPMODE[4] ^ IS_OPMODE_INVERTED_REG[4]); // rv 0
  assign OPMODE_in[5] = (OPMODE[5] !== 1'bx) && (OPMODE[5] ^ IS_OPMODE_INVERTED_REG[5]); // rv 0
  assign OPMODE_in[6] = (OPMODE[6] !== 1'bx) && (OPMODE[6] ^ IS_OPMODE_INVERTED_REG[6]); // rv 0
  assign OPMODE_in[7] = (OPMODE[7] !== 1'bx) && (OPMODE[7] ^ IS_OPMODE_INVERTED_REG[7]); // rv 0
  assign OPMODE_in[8] = (OPMODE[8] !== 1'bx) && (OPMODE[8] ^ IS_OPMODE_INVERTED_REG[8]); // rv 0
  assign PCIN_in = PCIN;
  assign RSTALLCARRYIN_in = (RSTALLCARRYIN !== 1'bx) && (RSTALLCARRYIN ^ IS_RSTALLCARRYIN_INVERTED_REG); // rv 0
  assign RSTALUMODE_in = (RSTALUMODE !== 1'bx) && (RSTALUMODE ^ IS_RSTALUMODE_INVERTED_REG); // rv 0
  assign RSTA_in = (RSTA !== 1'bx) && (RSTA ^ IS_RSTA_INVERTED_REG); // rv 0
  assign RSTB_in = (RSTB !== 1'bx) && (RSTB ^ IS_RSTB_INVERTED_REG); // rv 0
  assign RSTCTRL_in = (RSTCTRL !== 1'bx) && (RSTCTRL ^ IS_RSTCTRL_INVERTED_REG); // rv 0
  assign RSTC_in = (RSTC !== 1'bx) && (RSTC ^ IS_RSTC_INVERTED_REG); // rv 0
  assign RSTD_in = (RSTD !== 1'bx) && (RSTD ^ IS_RSTD_INVERTED_REG); // rv 0
  assign RSTINMODE_in = (RSTINMODE !== 1'bx) && (RSTINMODE ^ IS_RSTINMODE_INVERTED_REG); // rv 0
  assign RSTM_in = (RSTM !== 1'bx) && (RSTM ^ IS_RSTM_INVERTED_REG); // rv 0
  assign RSTP_in = (RSTP !== 1'bx) && (RSTP ^ IS_RSTP_INVERTED_REG); // rv 0

`ifndef XIL_XECLIB
initial begin
  #1;
  trig_attr = ~trig_attr;
end
`endif

`ifdef XIL_XECLIB
  assign ACASCREG_BIN = ACASCREG_REG[1:0];

  assign ADREG_BIN = ADREG_REG[0];

  assign ALUMODEREG_BIN = ALUMODEREG_REG[0];

  assign AMULTSEL_BIN =
    (AMULTSEL_REG == "A") ? AMULTSEL_A :
    (AMULTSEL_REG == "AD") ? AMULTSEL_AD :
     AMULTSEL_A;

  assign AREG_BIN = AREG_REG[1:0];

  assign AUTORESET_PATDET_BIN =
    (AUTORESET_PATDET_REG == "NO_RESET") ? AUTORESET_PATDET_NO_RESET :
    (AUTORESET_PATDET_REG == "RESET_MATCH") ? AUTORESET_PATDET_RESET_MATCH :
    (AUTORESET_PATDET_REG == "RESET_NOT_MATCH") ? AUTORESET_PATDET_RESET_NOT_MATCH :
     AUTORESET_PATDET_NO_RESET;

  assign AUTORESET_PRIORITY_BIN =
    (AUTORESET_PRIORITY_REG == "RESET") ? AUTORESET_PRIORITY_RESET :
    (AUTORESET_PRIORITY_REG == "CEP") ? AUTORESET_PRIORITY_CEP :
     AUTORESET_PRIORITY_RESET;

  assign A_INPUT_BIN =
    (A_INPUT_REG == "DIRECT") ? A_INPUT_DIRECT :
    (A_INPUT_REG == "CASCADE") ? A_INPUT_CASCADE :
     A_INPUT_DIRECT;

  assign BCASCREG_BIN = BCASCREG_REG[1:0];

  assign BMULTSEL_BIN =
    (BMULTSEL_REG == "B") ? BMULTSEL_B :
    (BMULTSEL_REG == "AD") ? BMULTSEL_AD :
     BMULTSEL_B;

  assign BREG_BIN = BREG_REG[1:0];

  assign B_INPUT_BIN =
    (B_INPUT_REG == "DIRECT") ? B_INPUT_DIRECT :
    (B_INPUT_REG == "CASCADE") ? B_INPUT_CASCADE :
     B_INPUT_DIRECT;

  assign CARRYINREG_BIN = CARRYINREG_REG[0];

  assign CARRYINSELREG_BIN = CARRYINSELREG_REG[0];

  assign CREG_BIN = CREG_REG[0];

  assign DREG_BIN = DREG_REG[0];

  assign INMODEREG_BIN = INMODEREG_REG[0];

  assign MREG_BIN = MREG_REG[0];

  assign OPMODEREG_BIN = OPMODEREG_REG[0];

  assign PREADDINSEL_BIN =
    (PREADDINSEL_REG == "A") ? PREADDINSEL_A :
    (PREADDINSEL_REG == "B") ? PREADDINSEL_B :
     PREADDINSEL_A;

  assign PREG_BIN = PREG_REG[0];

  assign SEL_MASK_BIN =
    (SEL_MASK_REG == "MASK") ? SEL_MASK_MASK :
    (SEL_MASK_REG == "C") ? SEL_MASK_C :
    (SEL_MASK_REG == "ROUNDING_MODE1") ? SEL_MASK_ROUNDING_MODE1 :
    (SEL_MASK_REG == "ROUNDING_MODE2") ? SEL_MASK_ROUNDING_MODE2 :
     SEL_MASK_MASK;

  assign SEL_PATTERN_BIN =
    (SEL_PATTERN_REG == "PATTERN") ? SEL_PATTERN_PATTERN :
    (SEL_PATTERN_REG == "C") ? SEL_PATTERN_C :
     SEL_PATTERN_PATTERN;

  assign USE_MULT_BIN =
    (USE_MULT_REG == "MULTIPLY") ? USE_MULT_MULTIPLY :
    (USE_MULT_REG == "DYNAMIC") ? USE_MULT_DYNAMIC :
    (USE_MULT_REG == "NONE") ? USE_MULT_NONE :
     USE_MULT_MULTIPLY;

  assign USE_PATTERN_DETECT_BIN =
    (USE_PATTERN_DETECT_REG == "NO_PATDET") ? USE_PATTERN_DETECT_NO_PATDET :
    (USE_PATTERN_DETECT_REG == "PATDET") ? USE_PATTERN_DETECT_PATDET :
     USE_PATTERN_DETECT_NO_PATDET;

  assign USE_SIMD_BIN =
    (USE_SIMD_REG == "ONE48") ? USE_SIMD_ONE48 :
    (USE_SIMD_REG == "FOUR12") ? USE_SIMD_FOUR12 :
    (USE_SIMD_REG == "TWO24") ? USE_SIMD_TWO24 :
     USE_SIMD_ONE48;

  assign USE_WIDEXOR_BIN =
    (USE_WIDEXOR_REG == "FALSE") ? USE_WIDEXOR_FALSE :
    (USE_WIDEXOR_REG == "TRUE") ? USE_WIDEXOR_TRUE :
     USE_WIDEXOR_FALSE;

  assign XORSIMD_BIN =
    (XORSIMD_REG == "XOR24_48_96") ? XORSIMD_XOR24_48_96 :
    (XORSIMD_REG == "XOR12") ? XORSIMD_XOR12 :
     XORSIMD_XOR24_48_96;

`else
always @(trig_attr) begin
#1;
  ACASCREG_BIN = ACASCREG_REG[1:0];

  ADREG_BIN = ADREG_REG[0];

  ALUMODEREG_BIN = ALUMODEREG_REG[0];

  AMULTSEL_BIN =
    (AMULTSEL_REG == "A") ? AMULTSEL_A :
    (AMULTSEL_REG == "AD") ? AMULTSEL_AD :
     AMULTSEL_A;

  AREG_BIN = AREG_REG[1:0];

  AUTORESET_PATDET_BIN =
    (AUTORESET_PATDET_REG == "NO_RESET") ? AUTORESET_PATDET_NO_RESET :
    (AUTORESET_PATDET_REG == "RESET_MATCH") ? AUTORESET_PATDET_RESET_MATCH :
    (AUTORESET_PATDET_REG == "RESET_NOT_MATCH") ? AUTORESET_PATDET_RESET_NOT_MATCH :
     AUTORESET_PATDET_NO_RESET;

  AUTORESET_PRIORITY_BIN =
    (AUTORESET_PRIORITY_REG == "RESET") ? AUTORESET_PRIORITY_RESET :
    (AUTORESET_PRIORITY_REG == "CEP") ? AUTORESET_PRIORITY_CEP :
     AUTORESET_PRIORITY_RESET;

  A_INPUT_BIN =
    (A_INPUT_REG == "DIRECT") ? A_INPUT_DIRECT :
    (A_INPUT_REG == "CASCADE") ? A_INPUT_CASCADE :
     A_INPUT_DIRECT;

  BCASCREG_BIN = BCASCREG_REG[1:0];

  BMULTSEL_BIN =
    (BMULTSEL_REG == "B") ? BMULTSEL_B :
    (BMULTSEL_REG == "AD") ? BMULTSEL_AD :
     BMULTSEL_B;

  BREG_BIN = BREG_REG[1:0];

  B_INPUT_BIN =
    (B_INPUT_REG == "DIRECT") ? B_INPUT_DIRECT :
    (B_INPUT_REG == "CASCADE") ? B_INPUT_CASCADE :
     B_INPUT_DIRECT;

  CARRYINREG_BIN = CARRYINREG_REG[0];

  CARRYINSELREG_BIN = CARRYINSELREG_REG[0];

  CREG_BIN = CREG_REG[0];

  DREG_BIN = DREG_REG[0];

  INMODEREG_BIN = INMODEREG_REG[0];

  MREG_BIN = MREG_REG[0];

  OPMODEREG_BIN = OPMODEREG_REG[0];

  PREADDINSEL_BIN =
    (PREADDINSEL_REG == "A") ? PREADDINSEL_A :
    (PREADDINSEL_REG == "B") ? PREADDINSEL_B :
     PREADDINSEL_A;

  PREG_BIN = PREG_REG[0];

  SEL_MASK_BIN =
    (SEL_MASK_REG == "MASK") ? SEL_MASK_MASK :
    (SEL_MASK_REG == "C") ? SEL_MASK_C :
    (SEL_MASK_REG == "ROUNDING_MODE1") ? SEL_MASK_ROUNDING_MODE1 :
    (SEL_MASK_REG == "ROUNDING_MODE2") ? SEL_MASK_ROUNDING_MODE2 :
     SEL_MASK_MASK;

  SEL_PATTERN_BIN =
    (SEL_PATTERN_REG == "PATTERN") ? SEL_PATTERN_PATTERN :
    (SEL_PATTERN_REG == "C") ? SEL_PATTERN_C :
     SEL_PATTERN_PATTERN;

  USE_MULT_BIN =
    (USE_MULT_REG == "MULTIPLY") ? USE_MULT_MULTIPLY :
    (USE_MULT_REG == "DYNAMIC") ? USE_MULT_DYNAMIC :
    (USE_MULT_REG == "NONE") ? USE_MULT_NONE :
     USE_MULT_MULTIPLY;

  USE_PATTERN_DETECT_BIN =
    (USE_PATTERN_DETECT_REG == "NO_PATDET") ? USE_PATTERN_DETECT_NO_PATDET :
    (USE_PATTERN_DETECT_REG == "PATDET") ? USE_PATTERN_DETECT_PATDET :
     USE_PATTERN_DETECT_NO_PATDET;

  USE_SIMD_BIN =
    (USE_SIMD_REG == "ONE48") ? USE_SIMD_ONE48 :
    (USE_SIMD_REG == "FOUR12") ? USE_SIMD_FOUR12 :
    (USE_SIMD_REG == "TWO24") ? USE_SIMD_TWO24 :
     USE_SIMD_ONE48;

  USE_WIDEXOR_BIN =
    (USE_WIDEXOR_REG == "FALSE") ? USE_WIDEXOR_FALSE :
    (USE_WIDEXOR_REG == "TRUE") ? USE_WIDEXOR_TRUE :
     USE_WIDEXOR_FALSE;

  XORSIMD_BIN =
    (XORSIMD_REG == "XOR24_48_96") ? XORSIMD_XOR24_48_96 :
    (XORSIMD_REG == "XOR12") ? XORSIMD_XOR12 :
     XORSIMD_XOR24_48_96;

end
`endif

`ifndef XIL_XECLIB
  always @(trig_attr) begin
  #1;
    if ((attr_test == 1'b1) ||
        ((ACASCREG_REG != 1) &&
         (ACASCREG_REG != 0) &&
         (ACASCREG_REG != 2))) begin
      $display("Error: [Unisim %s-101] ACASCREG attribute is set to %d.  Legal values for this attribute are 1, 0 or 2. Instance: %m", MODULE_NAME, ACASCREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((ADREG_REG != 1) &&
         (ADREG_REG != 0))) begin
      $display("Error: [Unisim %s-102] ADREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, ADREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((ALUMODEREG_REG != 1) &&
         (ALUMODEREG_REG != 0))) begin
      $display("Error: [Unisim %s-103] ALUMODEREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, ALUMODEREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((AMULTSEL_REG != "A") &&
         (AMULTSEL_REG != "AD"))) begin
      $display("Error: [Unisim %s-104] AMULTSEL attribute is set to %s.  Legal values for this attribute are A or AD. Instance: %m", MODULE_NAME, AMULTSEL_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((AREG_REG != 1) &&
         (AREG_REG != 0) &&
         (AREG_REG != 2))) begin
      $display("Error: [Unisim %s-105] AREG attribute is set to %d.  Legal values for this attribute are 1, 0 or 2. Instance: %m", MODULE_NAME, AREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((AUTORESET_PATDET_REG != "NO_RESET") &&
         (AUTORESET_PATDET_REG != "RESET_MATCH") &&
         (AUTORESET_PATDET_REG != "RESET_NOT_MATCH"))) begin
      $display("Error: [Unisim %s-106] AUTORESET_PATDET attribute is set to %s.  Legal values for this attribute are NO_RESET, RESET_MATCH or RESET_NOT_MATCH. Instance: %m", MODULE_NAME, AUTORESET_PATDET_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((AUTORESET_PRIORITY_REG != "RESET") &&
         (AUTORESET_PRIORITY_REG != "CEP"))) begin
      $display("Error: [Unisim %s-107] AUTORESET_PRIORITY attribute is set to %s.  Legal values for this attribute are RESET or CEP. Instance: %m", MODULE_NAME, AUTORESET_PRIORITY_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((A_INPUT_REG != "DIRECT") &&
         (A_INPUT_REG != "CASCADE"))) begin
      $display("Error: [Unisim %s-108] A_INPUT attribute is set to %s.  Legal values for this attribute are DIRECT or CASCADE. Instance: %m", MODULE_NAME, A_INPUT_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((BCASCREG_REG != 1) &&
         (BCASCREG_REG != 0) &&
         (BCASCREG_REG != 2))) begin
      $display("Error: [Unisim %s-109] BCASCREG attribute is set to %d.  Legal values for this attribute are 1, 0 or 2. Instance: %m", MODULE_NAME, BCASCREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((BMULTSEL_REG != "B") &&
         (BMULTSEL_REG != "AD"))) begin
      $display("Error: [Unisim %s-110] BMULTSEL attribute is set to %s.  Legal values for this attribute are B or AD. Instance: %m", MODULE_NAME, BMULTSEL_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((BREG_REG != 1) &&
         (BREG_REG != 0) &&
         (BREG_REG != 2))) begin
      $display("Error: [Unisim %s-111] BREG attribute is set to %d.  Legal values for this attribute are 1, 0 or 2. Instance: %m", MODULE_NAME, BREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((B_INPUT_REG != "DIRECT") &&
         (B_INPUT_REG != "CASCADE"))) begin
      $display("Error: [Unisim %s-112] B_INPUT attribute is set to %s.  Legal values for this attribute are DIRECT or CASCADE. Instance: %m", MODULE_NAME, B_INPUT_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((CARRYINREG_REG != 1) &&
         (CARRYINREG_REG != 0))) begin
      $display("Error: [Unisim %s-113] CARRYINREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, CARRYINREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((CARRYINSELREG_REG != 1) &&
         (CARRYINSELREG_REG != 0))) begin
      $display("Error: [Unisim %s-114] CARRYINSELREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, CARRYINSELREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((CREG_REG != 1) &&
         (CREG_REG != 0))) begin
      $display("Error: [Unisim %s-115] CREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, CREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((DREG_REG != 1) &&
         (DREG_REG != 0))) begin
      $display("Error: [Unisim %s-116] DREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, DREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((INMODEREG_REG != 1) &&
         (INMODEREG_REG != 0))) begin
      $display("Error: [Unisim %s-117] INMODEREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, INMODEREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((MREG_REG != 1) &&
         (MREG_REG != 0))) begin
      $display("Error: [Unisim %s-134] MREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, MREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((OPMODEREG_REG != 1) &&
         (OPMODEREG_REG != 0))) begin
      $display("Error: [Unisim %s-135] OPMODEREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, OPMODEREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((PREADDINSEL_REG != "A") &&
         (PREADDINSEL_REG != "B"))) begin
      $display("Error: [Unisim %s-137] PREADDINSEL attribute is set to %s.  Legal values for this attribute are A or B. Instance: %m", MODULE_NAME, PREADDINSEL_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((PREG_REG != 1) &&
         (PREG_REG != 0))) begin
      $display("Error: [Unisim %s-138] PREG attribute is set to %d.  Legal values for this attribute are 1 or 0. Instance: %m", MODULE_NAME, PREG_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((SEL_MASK_REG != "MASK") &&
         (SEL_MASK_REG != "C") &&
         (SEL_MASK_REG != "ROUNDING_MODE1") &&
         (SEL_MASK_REG != "ROUNDING_MODE2"))) begin
      $display("Error: [Unisim %s-140] SEL_MASK attribute is set to %s.  Legal values for this attribute are MASK, C, ROUNDING_MODE1 or ROUNDING_MODE2. Instance: %m", MODULE_NAME, SEL_MASK_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((SEL_PATTERN_REG != "PATTERN") &&
         (SEL_PATTERN_REG != "C"))) begin
      $display("Error: [Unisim %s-141] SEL_PATTERN attribute is set to %s.  Legal values for this attribute are PATTERN or C. Instance: %m", MODULE_NAME, SEL_PATTERN_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((USE_MULT_REG != "MULTIPLY") &&
         (USE_MULT_REG != "DYNAMIC") &&
         (USE_MULT_REG != "NONE"))) begin
      $display("Error: [Unisim %s-142] USE_MULT attribute is set to %s.  Legal values for this attribute are MULTIPLY, DYNAMIC or NONE. Instance: %m", MODULE_NAME, USE_MULT_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((USE_PATTERN_DETECT_REG != "NO_PATDET") &&
         (USE_PATTERN_DETECT_REG != "PATDET"))) begin
      $display("Error: [Unisim %s-143] USE_PATTERN_DETECT attribute is set to %s.  Legal values for this attribute are NO_PATDET or PATDET. Instance: %m", MODULE_NAME, USE_PATTERN_DETECT_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((USE_SIMD_REG != "ONE48") &&
         (USE_SIMD_REG != "FOUR12") &&
         (USE_SIMD_REG != "TWO24"))) begin
      $display("Error: [Unisim %s-144] USE_SIMD attribute is set to %s.  Legal values for this attribute are ONE48, FOUR12 or TWO24. Instance: %m", MODULE_NAME, USE_SIMD_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((USE_WIDEXOR_REG != "FALSE") &&
         (USE_WIDEXOR_REG != "TRUE"))) begin
      $display("Error: [Unisim %s-145] USE_WIDEXOR attribute is set to %s.  Legal values for this attribute are FALSE or TRUE. Instance: %m", MODULE_NAME, USE_WIDEXOR_REG);
      attr_err = 1'b1;
    end

    if ((attr_test == 1'b1) ||
        ((XORSIMD_REG != "XOR24_48_96") &&
         (XORSIMD_REG != "XOR12"))) begin
      $display("Error: [Unisim %s-146] XORSIMD attribute is set to %s.  Legal values for this attribute are XOR24_48_96 or XOR12. Instance: %m", MODULE_NAME, XORSIMD_REG);
      attr_err = 1'b1;
    end

    if (attr_err == 1'b1) #1 $finish;
  end
`endif

// begin behavioral model

  always @(trig_attr) begin
    #1;
    case (AREG_REG)
      0, 1 : if(AREG_REG != ACASCREG_REG) begin
      $display("Error: [Unisim %s-2] AREG attribute is set to %s and ACASCREG attribute is set to %s. When AREG is 0 or 1, ACASCREG must be set to the same value. Instance: %m", MODULE_NAME, AREG_REG, ACASCREG_REG);
        attr_err = 1'b1;
        end
      2 : if(ACASCREG_REG == 0) begin
      $display("Error: [Unisim %s-3] AREG attribute is set to %s and ACASCREG attribute is set to %s. When AREG is 2, ACASCREG must be set to 1 or 2. Instance: %m", MODULE_NAME, AREG_REG, ACASCREG_REG);
        attr_err = 1'b1;
        end
    endcase

    case (BREG_REG)
      0, 1 : if(BREG_REG != BCASCREG_REG) begin
      $display("Error: [Unisim %s-4] BREG attribute is set to %s and BCASCREG attribute is set to %s. When BREG is 0 or 1, BCASCREG must be set to the same value. Instance: %m", MODULE_NAME, BREG_REG, BCASCREG_REG);
        attr_err = 1'b1;
        end
      2 : if(BCASCREG_REG == 0) begin
      $display("Error: [Unisim %s-5] BREG attribute is set to %s and BCASCREG attribute is set to %s. When BREG is 2, BCASCREG must be set to 1 or 2. Instance: %m", MODULE_NAME, BREG_REG, BCASCREG_REG);
        attr_err = 1'b1;
        end
    endcase

    if (attr_err == 1'b1) #1 $finish;
  end

  always @(trig_attr) begin
    #1;
    if ((USE_MULT_REG == "NONE") && (MREG_REG !== 0)) begin
        $display("Error : [Unisim %s-6] : Attribute USE_MULT is set to \"NONE\" and MREG is set to %d. MREG must be set to 0 when the multiplier is not used. Instance %m", MODULE_NAME, MREG_REG);
        attr_err = 1'b1;
    end

  if (attr_err == 1'b1) #1 $finish;
  end

// Connections between atoms
  wire [44:0] U_DATA;
  wire [44:0] V_DATA;
  reg [26:0] A2A1;
  reg [17:0] B2B1;
  wire AMULT26_in;
  wire BMULT17_in;
  wire ALUMODE10_in;
  wire CCOUT_in;
  wire MULTSIGN_ALU_in;
  wire P_FDBK_47_in;
  wire [26:0] AD_DATA;
  wire [26:0] AD_in;
  wire [26:0] D_DATA;
  wire [26:0] PREADD_AB;
  wire [3:0] COUT_in;
  wire [44:0] U_in;
  wire [44:0] V_in;
  wire [44:0] U_DATA_in;
  wire [44:0] V_DATA_in;
  wire [47:0] ALU_OUT_in;
  wire [47:0] C_DATA_in;
  wire [47:0] P_FDBK_in;
  wire [7:0] XOR_MX_in;

// DSP_ALU wires
  localparam MAX_ALU_FULL   = 48;
  localparam MAX_CARRYOUT   = 4;
  localparam A_WIDTH   = 30;
  localparam B_WIDTH   = 18;
  localparam C_WIDTH   = 48;
  localparam D_WIDTH   = 27;
  localparam M_WIDTH   = 45;
  localparam P_WIDTH   = 48;
  reg cci_drc_msg = 1'b0;
  reg cis_drc_msg = 1'b0;


  wire CARRYIN_mux;
  reg CARRYIN_reg = 1'b0;
  reg  [3:0] ALUMODE_reg = 4'b0;
  reg [2:0] CARRYINSEL_mux = 3'b0;
  reg  [2:0] CARRYINSEL_reg = 3'b0;
  reg [8:0] OPMODE_mux = 9'b0;
  reg  [8:0] OPMODE_reg = 9'b0;

  wire [47:0] x_mac_cascd;

  reg  [47:0] wmux = 48'b0;
  reg  [47:0] xmux = 48'b0;
  reg  [47:0] ymux = 48'b0;
  reg  [47:0] zmux = 48'b0;
  wire [47:0] z_optinv;

  wire cin;
  reg cin_b = 1'b0;
  wire rst_carryin_g;
  reg qmultcarryin = 1'b0;

  wire c_mult;
  wire ce_m_g;
  wire d_carryin_int;
  wire dr_carryin_int;
  wire multcarryin_data;

  reg invalid_opmode = 1'b1;
  reg opmode_valid_flag_dal = 1'b1; // used in OPMODE DRC
  reg ping_opmode_drc_check = 1'b0;

  wire [MAX_ALU_FULL-1:0] co;
  wire [MAX_ALU_FULL-1:0] s;
  wire [MAX_ALU_FULL-1:0] comux;
  wire [MAX_ALU_FULL-1:0] comux_w;
  wire [MAX_ALU_FULL-1:0] comux4simd;
  wire [MAX_ALU_FULL-1:0] smux;
  wire [MAX_ALU_FULL-1:0] smux_w;
  wire [MAX_ALU_FULL:0] a_int;
  wire [12:0] s0;
  wire cout0;
  wire intc1;
  wire co12_lsb;
  wire [12:0] s1;
  wire cout1;
  wire intc2;
  wire co24_lsb;
  wire [12:0] s2;
  wire cout2;
  wire intc3;
  wire co36_lsb;
  wire [13:0] s3;
  wire cout3;
  wire cout4;
  wire xor_12a;
  wire xor_12b;
  wire xor_12c;
  wire xor_12d;
  wire xor_12e;
  wire xor_12f;
  wire xor_12g;
  wire xor_12h;
  wire xor_24a;
  wire xor_24b;
  wire xor_24c;
  wire xor_24d;
  wire xor_48a;
  wire xor_48b;
  wire xor_96;
  wire cout_0;
  wire cout_1;
  wire cout_2;
  wire cout_3;
  wire mult_or_logic;

// DSP_A_B_DATA wires
  reg [29:0] A1_reg = 30'b0;
  reg [29:0] A2_reg = 30'b0;
  wire [A_WIDTH-1:0] A_ALU;
  reg [17:0] B2_reg = 18'b0;
  reg [B_WIDTH-1:0] B1_DATA_out = {B_WIDTH{1'b0}};
  wire [B_WIDTH-1:0] B2_DATA;
  wire [B_WIDTH-1:0] B_ALU;

// DSP_C_DATA wires
  reg [47:0] C_reg = 48'b0;

// DSP_MULTIPLIER wires
  reg [17:0] b_mult_mux;
  reg [26:0] a_mult_mux;
  reg [M_WIDTH-1:0] mult;
  reg [M_WIDTH-2:0] ps_u_mask = 44'h55555555555;
  reg [M_WIDTH-2:0] ps_v_mask = 44'haaaaaaaaaaa;

// DSP_M_DATA wires
  reg [M_WIDTH-1:0] U_DATA_reg = {1'b1, {M_WIDTH-1{1'b0}}};
  reg [M_WIDTH-1:0] V_DATA_reg = {1'b1, {M_WIDTH-1{1'b0}}};

// DSP_OUTPUT wires
  wire the_auto_reset_patdet;
  wire auto_reset_pri;
  wire [47:0] the_mask;
  wire [47:0] the_pattern;
  reg opmode_valid_flag_dou = 1'b1; // TODO

  reg [3:0] COUT_reg = 4'b0000;
  reg ALUMODE10_reg = 1'b0;
  wire ALUMODE10_mux;
  reg MULTSIGN_ALU_reg = 1'b0;
  reg [47:0] ALU_OUT_reg = 48'b0;
  reg [7:0] XOR_MX_reg = 8'b0;

  wire pdet_o;
  wire pdetb_o;
  wire pdet_o_mux;
  wire pdetb_o_mux;
  wire overflow_data;
  wire underflow_data;
  reg  pdet_o_reg1 = 1'b0;
  reg  pdet_o_reg2 = 1'b0;
  reg  pdetb_o_reg1 = 1'b0;
  reg  pdetb_o_reg2 = 1'b0;

// DSP_PREADD wires
  wire [26:0] D_DATA_mux;

// DSP_PREADD_DATA wires
  wire [4:0] INMODE_mux;
  reg [4:0]  INMODE_reg = 5'b0;
  reg [D_WIDTH-1:0] AD_DATA_reg = {D_WIDTH{1'b0}};
  reg [D_WIDTH-1:0] D_DATA_reg = {D_WIDTH{1'b0}};

// atom interconnect
  assign U_DATA_in = (USE_SIMD_BIN == USE_SIMD_ONE48) ? U_DATA : 45'h100000000000;
  assign V_DATA_in = (USE_SIMD_BIN == USE_SIMD_ONE48) ? V_DATA : 45'h100000000000;
  reg [3:0] ALUMODE_DATA;
// DSP_ALU
//*** W mux NB
  always @(OPMODE_mux[8:7] or P_FDBK_in or RND_REG or C_DATA_in)
     case (OPMODE_mux[8:7])
          2'b00 : wmux = 48'b0;
          2'b01 : wmux = P_FDBK_in;
          2'b10 : wmux = RND_REG;
          2'b11 : wmux = C_DATA_in;
        default : wmux = {48{1'bx}};
    endcase

// To support MAC-cascade add multsignin to bit 1 of X
  assign x_mac_cascd = (OPMODE_mux[6:4] == 3'b100) ? {{46{1'b0}},MULTSIGNIN_in,1'b0} : {48{1'b0}};

//*** X mux NB
  always @(U_DATA_in or P_FDBK_in or A_ALU or B_ALU or OPMODE_mux[1:0] or x_mac_cascd)
	  case (OPMODE_mux[1:0])
          2'b00 : xmux = x_mac_cascd;
          2'b01 : xmux = {{3{U_DATA_in[44]}}, U_DATA_in};
          2'b10 : xmux = P_FDBK_in;
          2'b11 : xmux = {A_ALU, B_ALU};
        default : xmux = {48{1'bx}};
	  endcase

//*** Y mux NB
  always @(OPMODE_mux[3:2] or V_DATA_in or C_DATA_in)
	  case (OPMODE_mux[3:2])
          2'b00 : ymux = 48'b0;
          2'b01 : ymux = {{3{1'b0}}, V_DATA_in};
          2'b10 : ymux = {48{1'b1}};
          2'b11 : ymux = C_DATA_in;
        default : ymux = {48{1'bx}};
     endcase

//*** Z mux NB
  always @(OPMODE_mux[6:4] or PCIN_in or P_FDBK_in or C_DATA_in or P_FDBK_47_in)
	  casez (OPMODE_mux[6:4])
         3'b000 : zmux = 48'b0;
         3'b001 : zmux = PCIN_in;
         3'b010 : zmux = P_FDBK_in;
         3'b011 : zmux = C_DATA_in;
         3'b100 : zmux = P_FDBK_in;
         3'b101 : zmux = {{9{PCIN_in[47]}},  {8{PCIN_in[47]}},   PCIN_in[47:17]};
         3'b11? : zmux = {{9{P_FDBK_47_in}}, {8{P_FDBK_in[47]}}, P_FDBK_in[47:17]};
        default : zmux = {48{1'bx}};
     endcase

//*********************************************************
//*** CARRYINSEL and OPMODE with 1 level of register
//*********************************************************
    always @(posedge CLK_in) begin
	   if (RSTCTRL_in || glblGSR) begin
         OPMODE_reg <= 9'b0;
	   end
	   else if (CECTRL_in) begin
         OPMODE_reg <= OPMODE_in;
	   end
    end

    always @(posedge CLK_in) begin
	   if (RSTCTRL_in || glblGSR) begin
         CARRYINSEL_reg <= 3'b0;
	   end
	   else if (CECTRL_in) begin
         CARRYINSEL_reg <= CARRYINSEL_in;
	   end
    end

    always @(*) CARRYINSEL_mux = (CARRYINSELREG_BIN == 1'b1) ?  CARRYINSEL_reg : CARRYINSEL_in;

    always @(*) begin
      if (OPMODEREG_BIN == 1'b1) OPMODE_mux = OPMODE_reg;
      else OPMODE_mux = OPMODE_in;
    end

    always @(CARRYINSEL_mux or CARRYCASCIN_in or MULTSIGNIN_in or OPMODE_mux) begin
      if(CARRYINSEL_mux == 3'b010) begin
        if(!((MULTSIGNIN_in === 1'bx) || (cci_drc_msg == 1'b1) ||
             ((OPMODE_mux == 9'b001001000) && !(MULTSIGNIN_in === 1'bx)) ||
             ((MULTSIGNIN_in == 1'b0) && (CARRYCASCIN_in == 1'b0)))) begin
	       $display("DRC warning : [Unisim %s-7] CARRYCASCIN can only be used in the current %s if the previous %s is performing a two input ADD or SUBRTACT operation or the current %s is configured in the MAC extend opmode 7'b1001000 at %.3f ns. Instance %m\n", MODULE_NAME, MODULE_NAME, MODULE_NAME, MODULE_NAME, $time/1000.0);
// CR 619940 -- Enhanced DRC warning
          $display("The simulation model does not know the placement of the %s slices used, so it cannot fully confirm the above warning. It is necessary to view the placement of the %s slices and ensure that these warnings are not being breached\n", MODULE_NAME, MODULE_NAME);
          cci_drc_msg = 1'b1;
        end
        if(!((MULTSIGNIN_in === 1'bx) || (OPMODE_mux[3:0] != 4'b0101))) begin
          $display("DRC warning : [Unisim %s-10] CARRYINSEL is set to 010 with OPMODE set to multiplication (xxx0101). This is an illegal mode and may show deviation between simulation results and hardware behavior. %s instance %m at %.3f ns.", MODULE_NAME, MODULE_NAME, $time/1000.0);
        end
        if(!((MULTSIGNIN_in === 1'bx) || (cis_drc_msg == 1'b1) ||
             (OPMODEREG_BIN == 1'b1))) begin
          $display("DRC warning : [Unisim %s-11] CARRYINSEL is set to 010 with OPMODEREG set to 0. This causes unknown values after reset occurs. It is suggested to use OPMODEREG = 1 when cascading large adders. %s instance %m at %.3f ns.", MODULE_NAME, MODULE_NAME, $time/1000.0);
          cis_drc_msg = 1'b1;
        end
      end
    end

//*********************************************************
//*** ALUMODE with 1 level of register
//*********************************************************
    always @(posedge CLK_in) begin
	    if (RSTALUMODE_in || glblGSR)
          ALUMODE_reg <= 4'b0;
	    else if (CEALUMODE_in)
          ALUMODE_reg <= ALUMODE_in;
       end

    always @(*) ALUMODE_DATA = (ALUMODEREG_BIN == 1'b1) ? ALUMODE_reg : ALUMODE_in;

//------------------------------------------------------------------
//*** DRC for OPMODE
//------------------------------------------------------------------

// needs PREG from output block
// ~2000 lines code - skip for now - copy/rework from DSP48E1.

//--####################################################################
//--#####                         ALU                              #####
//--####################################################################

// ADDSUB block - first stage of ALU develops sums and carries for Final Adder
// Invert Z for subtract operation using alumode<0>
  assign z_optinv = {48{ALUMODE_DATA[0]}} ^ zmux;

// Add W, X, Y, Z carry-save style; basically full adder logic below
  assign co = ((xmux & ymux)|(z_optinv & ymux)|(xmux & z_optinv));
// s has a fan-out of 2 (1) FA with W (2) second leg of XOR tree
  assign s  = (z_optinv^xmux^ymux);

// Mux S and CO to do 2 operands logic operations
// S = produce XOR/XNOR, NOT functions
// CO = produce AND/NAND, OR/NOR functions
  assign comux = ALUMODE_DATA[2] ? 0  : co;
  assign smux =  ALUMODE_DATA[3] ? co : s;

// Carry mux to handle SIMD mode
// SIMD must be used here since addition of W requires carry propogation
  assign comux4simd = {
              comux[47:36],
              comux[35]&&(USE_SIMD_BIN != USE_SIMD_FOUR12),
              comux[34:24],
              comux[23]&&(USE_SIMD_BIN == USE_SIMD_ONE48),
              comux[22:12],
              comux[11]&&(USE_SIMD_BIN != USE_SIMD_FOUR12),
              comux[10:0]
            };

// FA to combine W-mux with s and co
// comux must be shifted to properly reflect carry operation
  assign smux_w  =   smux ^ {comux4simd[46:0],1'b0} ^ wmux;
  assign comux_w = ((smux & {comux4simd[46:0],1'b0}) |
                    (wmux & {comux4simd[46:0],1'b0}) |
                    (smux & wmux));

// alumode10 indicates a subtraction, used to correct carryout polarity
  assign ALUMODE10_in  = (ALUMODE_DATA[0] & ALUMODE_DATA[1]);

// prepare data for Final Adder
// a[0] is in fact the cin bit, adder inputs: a[48:1], b[47:0], cin= a[0]
  assign a_int = {comux_w, cin};
//  assign b_int = smux_w;

// FINAL ADDER - second stage develops final sums and carries
  assign s0        = a_int[11:0] + smux_w[11:0];
  // invert if alumode10
  assign cout0     = ALUMODE10_in  ^ (a_int[12] ^ s0[12] ^ comux[11]);

  // internal carry is zero'd out on mc_simd == 1
  assign intc1     = (USE_SIMD_BIN != USE_SIMD_FOUR12) && s0[12];
  // next lsb is zero'd out on mc_simd == 1
  assign co12_lsb  = (USE_SIMD_BIN != USE_SIMD_FOUR12) && a_int[12];
  //
  assign s1        = {a_int[23:13],co12_lsb} + smux_w[23:12] + intc1;
  assign cout1     = ALUMODE10_in  ^ (a_int[24] ^ s1[12] ^ comux[23]);
  assign intc2     = (USE_SIMD_BIN == USE_SIMD_ONE48) && s1[12];
  assign co24_lsb  = (USE_SIMD_BIN == USE_SIMD_ONE48) && a_int[24];
  //
  assign s2        = {a_int[35:25],co24_lsb} + smux_w[35:24] + intc2;
  assign cout2     = ALUMODE10_in  ^ (a_int[36] ^ s2[12] ^ comux[35]);
  assign intc3     = (USE_SIMD_BIN != USE_SIMD_FOUR12) && s2[12];
  assign co36_lsb  = (USE_SIMD_BIN != USE_SIMD_FOUR12) && a_int[36];
  //
  assign s3        = {a_int[48:37],co36_lsb} + {comux4simd[47],smux_w[47:36]} + intc3;
  assign cout3     = ALUMODE10_in  ^ s3[12];

// Not gated with alumode10 since used to propogate carry in wide multiply
  assign cout4     = s3[13];

// Wide XOR
  assign xor_12a = USE_WIDEXOR_BIN ? ^s[5:0] : 0;
  assign xor_12b = USE_WIDEXOR_BIN ? ^s[11:6] : 0;
  assign xor_12c = USE_WIDEXOR_BIN ? ^s[17:12] : 0;
  assign xor_12d = USE_WIDEXOR_BIN ? ^s[23:18] : 0;
  assign xor_12e = USE_WIDEXOR_BIN ? ^s[29:24] : 0;
  assign xor_12f = USE_WIDEXOR_BIN ? ^s[35:30] : 0;
  assign xor_12g = USE_WIDEXOR_BIN ? ^s[41:36] : 0;
  assign xor_12h = USE_WIDEXOR_BIN ? ^s[47:42] : 0;

  assign xor_24a = xor_12a ^ xor_12b;
  assign xor_24b = xor_12c ^ xor_12d;
  assign xor_24c = xor_12e ^ xor_12f;
  assign xor_24d = xor_12g ^ xor_12h;

  assign xor_48a = xor_24a ^ xor_24b;
  assign xor_48b = xor_24c ^ xor_24d;

  assign xor_96 = xor_48a ^ xor_48b;

//  "X" carryout for multiply and logic operations
  assign mult_or_logic = ((OPMODE_mux[3:0] == 4'b0101) ||
                          (ALUMODE_DATA[3:2] != 2'b00));
// allow carrycascout to not X in output atom
//  assign cout_3 = mult_or_logic ? 1'bx : cout3;
  assign cout_3 =                        cout3;
  assign cout_2 = mult_or_logic ? 1'bx : cout2;
  assign cout_1 = mult_or_logic ? 1'bx : cout1;
  assign cout_0 = mult_or_logic ? 1'bx : cout0;
//  assign alu_o = {s3[11:0],s2[11:0],s1[11:0],s0[11:0]};
// drive signals to Output Atom
  assign COUT_in[3] =                                     cout_3;
  assign COUT_in[2] = (USE_SIMD_BIN == USE_SIMD_FOUR12) ? cout_2 : 1'bx;
  assign COUT_in[1] = (USE_SIMD_BIN != USE_SIMD_ONE48 ) ? cout_1 : 1'bx;
  assign COUT_in[0] = (USE_SIMD_BIN == USE_SIMD_FOUR12) ? cout_0 : 1'bx;
  assign MULTSIGN_ALU_in  = s3[13]; // from alu rtl but doesn't seem right
  assign #1 ALU_OUT_in = {48{ALUMODE_DATA[1]}} ^ {s3[11:0],s2[11:0],s1[11:0],s0[11:0]}; // break 0 delay feedback
  assign XOR_MX_in[0] = XORSIMD_BIN ? xor_12a : xor_24a;
  assign XOR_MX_in[1] = XORSIMD_BIN ? xor_12b : xor_48a;
  assign XOR_MX_in[2] = XORSIMD_BIN ? xor_12c : xor_24b;
  assign XOR_MX_in[3] = XORSIMD_BIN ? xor_12d : xor_96;
  assign XOR_MX_in[4] = XORSIMD_BIN ? xor_12e : xor_24c;
  assign XOR_MX_in[5] = XORSIMD_BIN ? xor_12f : xor_48b;
  assign XOR_MX_in[6] = XORSIMD_BIN ? xor_12g : xor_24d;
  assign XOR_MX_in[7] = xor_12h;


//--########################### END ALU ################################


//*** CarryIn Mux and Register

//-------  input 0
    always @(posedge CLK_in) begin
	    if (RSTALLCARRYIN_in || glblGSR)
          CARRYIN_reg <= 1'b0;
	    else if (CECARRYIN_in)
          CARRYIN_reg <= CARRYIN_in;
       end

       assign CARRYIN_mux = (CARRYINREG_BIN == 1'b1) ? CARRYIN_reg : CARRYIN_in;

// INTERNAL CARRYIN REGISTER
  assign c_mult = !(AMULT26_in^BMULT17_in);
  assign ce_m_g   = CEM_in & ~glblGSR; // & gwe
  assign rst_carryin_g = RSTALLCARRYIN_in & ~glblGSR; // & gwe
  assign d_carryin_int  = ce_m_g ? c_mult : qmultcarryin;

// rstallcarryin is injected through data path
  assign dr_carryin_int = rst_carryin_g ? 0 : d_carryin_int;

  always @(posedge CLK_in) begin
    if (glblGSR)
       qmultcarryin <= 1'b0;
    else
       qmultcarryin <= dr_carryin_int;
  end

  // bypass register mux
  assign multcarryin_data = (MREG_BIN == 1'b1) ? qmultcarryin : c_mult;

//NB
  always @(CARRYINSEL_mux or CARRYIN_mux or PCIN_in[47] or CARRYCASCIN_in or CCOUT_in or P_FDBK_in[47] or multcarryin_data) begin
	case (CARRYINSEL_mux)
     3'b000  : cin_b = ~CARRYIN_mux;
     3'b001  : cin_b = PCIN_in[47];
     3'b010  : cin_b = ~CARRYCASCIN_in;
     3'b011  : cin_b = ~PCIN_in[47];
     3'b100  : cin_b = ~CCOUT_in;
     3'b101  : cin_b = P_FDBK_in[47];
     3'b110  : cin_b = ~multcarryin_data;
     3'b111  : cin_b = ~P_FDBK_in[47];
     default : cin_b = 1'bx;
	endcase
   end
// disable carryin when performing logic operation
   assign cin = (ALUMODE_DATA[3] || ALUMODE_DATA[2]) ? 1'b0 : ~cin_b;

// DSP_A_B_DATA
//*********************************************************
//*** Input register A with 2 level deep of registers
//*********************************************************

    always @(posedge CLK_in) begin
       if (RSTA_in || (AREG_BIN == 2'b00) || glblGSR) begin
          A1_reg <= {A_WIDTH{1'b0}};
       end else if (CEA1_in) begin
          if (A_INPUT_BIN == A_INPUT_CASCADE) begin
             A1_reg <= ACIN_in;
          end else begin
             A1_reg <= A_in;
          end
       end
    end

    always @(posedge CLK_in) begin
       if (RSTA_in || (AREG_BIN == 2'b00) || glblGSR) begin
          A2_reg <= {A_WIDTH{1'b0}};
       end else if (CEA2_in) begin
          if (AREG_BIN == 2'b10) begin
             A2_reg <= A1_reg;
          end else if (A_INPUT_BIN == A_INPUT_CASCADE) begin
             A2_reg <= ACIN_in;
          end else begin
             A2_reg <= A_in;
          end
       end
    end

    assign A_ALU = (AREG_BIN != 2'b00) ? A2_reg :
                   (A_INPUT_BIN == A_INPUT_CASCADE) ? ACIN_in :
                   A_in;

// assumes encoding the same for ACASCREG and AREG
    assign ACOUT = (ACASCREG_BIN == AREG_BIN) ? A_ALU : A1_reg;

//*********************************************************
//*** Input register B with 2 level deep of registers
//*********************************************************

    always @(posedge CLK_in) begin
       if (RSTB_in || (BREG_BIN == 2'b00) || glblGSR) begin
          B1_DATA_out <= 18'b0;
       end else if (CEB1_in) begin
          if (B_INPUT_BIN == B_INPUT_CASCADE) B1_DATA_out <= BCIN_in;
          else B1_DATA_out <= B_in;
       end
    end

    always @(posedge CLK_in) begin
       if (RSTB_in || glblGSR) B2_reg <= 18'b0;
       else if (CEB2_in)
         if (BREG_BIN == 2'b10) B2_reg <= B1_DATA_out;
         else if (B_INPUT_BIN == B_INPUT_CASCADE) B2_reg <= BCIN_in;
         else B2_reg <= B_in;
    end

    assign B_ALU = (BREG_BIN != 2'b00) ? B2_reg :
                   (B_INPUT_BIN == B_INPUT_CASCADE) ?  BCIN_in :
                    B_in;

    assign B2_DATA = (BREG_BIN != 2'b00) ? B2_reg :
                     (B_INPUT_BIN == B_INPUT_CASCADE) ?  BCIN_in :
                      B_in;

// assumes encoding the same for BCASCREG and BREG
    assign BCOUT = (BCASCREG_BIN == BREG_BIN) ? B2_DATA : B1_DATA_out;

// DSP_C_DATA
//*********************************************************
//*** Input register C with 1 level deep of register
//*********************************************************

   always @(posedge CLK_in) begin
      if (RSTC_in || (CREG_BIN == 1'b0) || glblGSR) begin
         C_reg <= 48'b0;
      end else if (CEC_in) begin
         C_reg <= C_in;
      end
   end

   assign C_DATA_in = (CREG_BIN == 1'b1) ? C_reg : C_in;

// DSP_MULTIPLIER
always @(*) begin
  if (AMULTSEL_BIN == AMULTSEL_A) a_mult_mux = A2A1;
  else a_mult_mux = AD_DATA;
end
always @(*) begin
  if (BMULTSEL_BIN == BMULTSEL_B) b_mult_mux = B2B1;
  else b_mult_mux = AD_DATA;
end

  assign AMULT26_in = a_mult_mux[26];
  assign BMULT17_in = b_mult_mux[17];
// U[44],V[44]  11 when mult[44]=0,  10 when mult[44]=1
  assign U_in = {1'b1,      mult[43:0] & ps_u_mask};
  assign V_in = {~mult[44], mult[43:0] & ps_v_mask};

always @(*) begin
  if (USE_MULT_BIN == USE_MULT_NONE) mult = 45'b0;
  else mult = ({{18{a_mult_mux[26]}},a_mult_mux} * {{27{b_mult_mux[17]}},b_mult_mux});
end

// DSP_M_DATA
//*********************************************************
//*** Multiplier outputs U, V  with 1 level deep of register
//*********************************************************

   always @(posedge CLK_in) begin
      if  (RSTM_in || (MREG_BIN == 1'b0) || glblGSR) begin
         U_DATA_reg <= {1'b1, {M_WIDTH-1{1'b0}}};
         V_DATA_reg <= {1'b1, {M_WIDTH-1{1'b0}}};
      end else if (CEM_in)  begin
         U_DATA_reg <= U_in;
         V_DATA_reg <= V_in;
      end
   end

   assign U_DATA = (MREG_BIN == 1'b1) ? U_DATA_reg    : U_in;
   assign V_DATA = (MREG_BIN == 1'b1) ? V_DATA_reg    : V_in;

// DSP_OUTPUT
//--####################################################################
//--#####                    Pattern Detector                      #####
//--####################################################################

    // select pattern
    assign the_pattern = (SEL_PATTERN_BIN == SEL_PATTERN_PATTERN) ? PATTERN_REG : C_DATA_in;

    // select mask
    assign the_mask = (USE_PATTERN_DETECT_BIN == USE_PATTERN_DETECT_NO_PATDET) ? {C_WIDTH{1'b1}} :
                      (SEL_MASK_BIN == SEL_MASK_C)              ?    C_DATA_in       :
                      (SEL_MASK_BIN == SEL_MASK_ROUNDING_MODE1) ? {~(C_DATA_in[C_WIDTH-2:0]),1'b0} :
                      (SEL_MASK_BIN == SEL_MASK_ROUNDING_MODE2) ? {~(C_DATA_in[C_WIDTH-3:0]),2'b0} :
                      MASK_REG; // default or (SEL_MASK_BIN == SEL_MASK_MASK)

    //--  now do the pattern detection

   assign pdet_o  = &(~(the_pattern ^ ALU_OUT_in) | the_mask);
   assign pdetb_o = &( (the_pattern ^ ALU_OUT_in) | the_mask);

   assign PATTERNDETECT  = opmode_valid_flag_dou ? pdet_o_mux  : 1'bx;
   assign PATTERNBDETECT = opmode_valid_flag_dou ? pdetb_o_mux : 1'bx;

//*** Output register PATTERN DETECT and UNDERFLOW / OVERFLOW

   always @(posedge CLK_in) begin
     if(RSTP_in || glblGSR || the_auto_reset_patdet)
       begin
         pdet_o_reg1  <= 1'b0;
         pdet_o_reg2  <= 1'b0;
         pdetb_o_reg1 <= 1'b0;
         pdetb_o_reg2 <= 1'b0;
       end
     else if(CEP_in)
       begin
       //-- the previous values are used in Underflow/Overflow
         pdet_o_reg2  <= pdet_o_reg1;
         pdetb_o_reg2 <= pdetb_o_reg1;
         pdet_o_reg1  <= pdet_o;
         pdetb_o_reg1 <= pdetb_o;
       end
     end

    assign pdet_o_mux     = (PREG_BIN == 1'b1) ? pdet_o_reg1  : pdet_o;
    assign pdetb_o_mux    = (PREG_BIN == 1'b1) ? pdetb_o_reg1 : pdetb_o;
    assign overflow_data  = (PREG_BIN == 1'b1) ? pdet_o_reg2  : pdet_o;
    assign underflow_data = (PREG_BIN == 1'b1) ? pdetb_o_reg2 : pdetb_o;

//--####################################################################
//--#####                     AUTORESET_PATDET                     #####
//--####################################################################
    assign auto_reset_pri = (AUTORESET_PRIORITY_BIN == AUTORESET_PRIORITY_RESET) || CEP_in;

    assign the_auto_reset_patdet =
         (AUTORESET_PATDET_BIN == AUTORESET_PATDET_RESET_MATCH) ?
                     auto_reset_pri && pdet_o_mux :
         (AUTORESET_PATDET_BIN == AUTORESET_PATDET_RESET_NOT_MATCH) ?
                     auto_reset_pri && overflow_data && ~pdet_o_mux : 1'b0; // NO_RESET

//--####################################################################
//--#### CARRYOUT, CARRYCASCOUT. MULTSIGNOUT, PCOUT and XOROUT reg #####
//--####################################################################
//*** register with 1 level of register
   always @(posedge CLK_in) begin
        if(RSTP_in || glblGSR || the_auto_reset_patdet) begin
           COUT_reg         <= 4'b0000;
           ALUMODE10_reg    <= 1'b0;
           MULTSIGN_ALU_reg <= 1'b0;
           ALU_OUT_reg      <= 48'b0;
           XOR_MX_reg       <= 8'b0;
           end
        else if (CEP_in) begin
           COUT_reg         <= COUT_in;
           ALUMODE10_reg    <= ALUMODE10_in;
           MULTSIGN_ALU_reg <= MULTSIGN_ALU_in;
           ALU_OUT_reg      <= ALU_OUT_in;
           XOR_MX_reg       <= XOR_MX_in;
           end
    end

    assign ALUMODE10_mux    = (PREG_BIN == 1'b1) ? ALUMODE10_reg    : ALUMODE10_in;
    assign CARRYOUT     = (PREG_BIN == 1'b1) ? COUT_reg         : COUT_in;
    assign MULTSIGNOUT  = (PREG_BIN == 1'b1) ? MULTSIGN_ALU_reg : MULTSIGN_ALU_in;
    assign P            = (PREG_BIN == 1'b1) ? ALU_OUT_reg      : ALU_OUT_in;
    assign XOROUT       = (PREG_BIN == 1'b1) ? XOR_MX_reg      : XOR_MX_in;
    assign CCOUT_in      = ALUMODE10_reg ^ COUT_reg[3];
    assign CARRYCASCOUT  = (PREG_BIN == 1'b1) ? ALUMODE10_reg ^ COUT_reg[3]:
                                                ALUMODE10_in  ^ COUT_in[3];
    assign P_FDBK_in     = ALU_OUT_reg;
    assign P_FDBK_47_in  = ALU_OUT_reg[47];
    assign PCOUT = (PREG_BIN == 1'b1) ? ALU_OUT_reg : ALU_OUT_in;

//--####################################################################
//--#####                    Underflow / Overflow                  #####
//--####################################################################
    assign OVERFLOW_renamed  = ((USE_PATTERN_DETECT_BIN == USE_PATTERN_DETECT_PATDET) ||
                            (PREG_BIN == 1'b1)) ?
                            ~pdet_o_mux && ~pdetb_o_mux && overflow_data : 1'bx;
    assign UNDERFLOW_renamed = ((USE_PATTERN_DETECT_BIN == USE_PATTERN_DETECT_PATDET) ||
                            (PREG_BIN == 1'b1)) ?
                            ~pdet_o_mux && ~pdetb_o_mux && underflow_data : 1'bx;
// DSP_PREADD
//*********************************************************
//*** Preaddsub AD
//*********************************************************
  assign D_DATA_mux = INMODE_mux[2] ? D_DATA    : 27'b0;
  assign AD_in  = INMODE_mux[3] ? (D_DATA_mux - PREADD_AB) : (D_DATA_mux + PREADD_AB);

// DSP_PREADD_DATA
   always @(*) begin
     if ((PREADDINSEL_BIN==PREADDINSEL_A) && INMODE_mux[1]) A2A1 = 27'b0;
     else if (INMODE_mux[0]==1'b1) A2A1 = A1_reg[26:0];
     else A2A1 = A_ALU[26:0];
   end
   always @(*) begin
     if ((PREADDINSEL_BIN==PREADDINSEL_B) && INMODE_mux[1]) B2B1 = 18'b0;
     else if (INMODE_mux[4]==1'b1) B2B1 = B1_DATA_out;
     else B2B1 = B2_DATA;
   end
   assign PREADD_AB    = (PREADDINSEL_BIN==PREADDINSEL_B) ? {{9{B2B1[17]}}, B2B1} : A2A1;

//*********************************************************
//**********  INMODE signal registering        ************
//*********************************************************
// new

   always @(posedge CLK_in) begin
      if (RSTINMODE_in || (INMODEREG_BIN == 1'b0) || glblGSR) begin
         INMODE_reg <= 5'b0;
      end else if (CEINMODE_in) begin
         INMODE_reg <= INMODE_in;
      end
   end

     assign INMODE_mux = (INMODEREG_BIN == 1'b1) ? INMODE_reg : INMODE_in;

//*********************************************************
//*** Input register D with 1 level deep of register
//*********************************************************

   always @(posedge CLK_in) begin
      if (RSTD_in || (DREG_BIN == 1'b0) || glblGSR) begin
         D_DATA_reg <= {D_WIDTH{1'b0}};
      end else if (CED_in) begin
         D_DATA_reg <= D_in;
      end
   end

   assign D_DATA    = (DREG_BIN == 1'b1) ? D_DATA_reg : D_in;

//*********************************************************
//*** Input register AD with 1 level deep of register
//*********************************************************

   always @(posedge CLK_in) begin
      if      (RSTD_in || glblGSR) AD_DATA_reg <= 27'b0;
      else if (CEAD_in) AD_DATA_reg <= AD_in;
   end

   assign AD_DATA    = (ADREG_BIN == 1'b1) ? AD_DATA_reg : AD_in;

   always @(OPMODE_mux) begin
     if (((OPMODE_mux[1:0] == 2'b11) && (USE_MULT_BIN == USE_MULT_MULTIPLY)) &&
       ((AREG_BIN==2'b00 && BREG_BIN==2'b00 && MREG_BIN==1'b0) ||
        (AREG_BIN==2'b00 && BREG_BIN==2'b00 && PREG_BIN==1'b0) ||
        (MREG_BIN==1'b0 && PREG_BIN==1'b0)))
       $display("OPMODE Input Warning : [Unisim %s-8] The OPMODE[1:0] (%b) is invalid when using attributes USE_MULT = MULTIPLY and (A, B and M) or (A, B and P) or (M and P) are not REGISTERED at time %.3f ns. Please set USE_MULT to either NONE or DYNAMIC or REGISTER one of each group. (A or B) and (M or P) will satisfy the requirement. Instance %m", MODULE_NAME, OPMODE_mux[1:0], $time/1000.0);
     if((OPMODE_mux[3:0] == 4'b0101) &&
       ((USE_MULT_BIN == USE_MULT_NONE) || (USE_SIMD_BIN != USE_SIMD_ONE48)))
       $display("OPMODE Input Warning : [Unisim %s-9] The OPMODE[3:0] (%b) is invalid when using attributes USE_MULT = NONE, or USE_SIMD = TWO24 or FOUR12 at %.3f ns. Instance %m", MODULE_NAME, OPMODE_mux[3:0], $time/1000.0);
    end

// end behavioral model
endmodule

// `endcelldefine

/* verilator lint_on STMTDLY */
/* verilator lint_on WIDTH */
/* verilator lint_on UNOPTFLAT */