// Generated by CIRCT firtool-1.151.0
module MulAddRecFNToRaw_preMul_1(
  input  [1:0]   io_op,
  input  [64:0]  io_a,
                 io_b,
                 io_c,
  output [52:0]  io_mulAddA,
                 io_mulAddB,
  output [105:0] io_mulAddC,
  output         io_toPostMul_isSigNaNAny,
                 io_toPostMul_isNaNAOrB,
                 io_toPostMul_isInfA,
                 io_toPostMul_isZeroA,
                 io_toPostMul_isInfB,
                 io_toPostMul_isZeroB,
                 io_toPostMul_signProd,
                 io_toPostMul_isNaNC,
                 io_toPostMul_isInfC,
                 io_toPostMul_isZeroC,
  output [12:0]  io_toPostMul_sExpSum,
  output         io_toPostMul_doSubMags,
                 io_toPostMul_CIsDominant,
  output [5:0]   io_toPostMul_CDom_CAlignDist,
  output [54:0]  io_toPostMul_highAlignedSigC,
  output         io_toPostMul_bit0AlignedSigC
);

  wire         _rawA_out_sig_T = |(io_a[63:61]);
  wire         rawA_isSpecial = &(io_a[63:62]);
  wire         rawA_isNaN = rawA_isSpecial & io_a[61];
  wire         _rawB_out_sig_T = |(io_b[63:61]);
  wire         rawB_isSpecial = &(io_b[63:62]);
  wire         rawB_isNaN = rawB_isSpecial & io_b[61];
  wire         _rawC_out_sig_T = |(io_c[63:61]);
  wire         rawC_isSpecial = &(io_c[63:62]);
  wire         rawC_isNaN = rawC_isSpecial & io_c[61];
  wire         signProd = io_a[64] ^ io_b[64] ^ io_op[1];
  wire [13:0]  _sExpAlignedProd_T_1 = {2'h0, io_a[63:52]} + {2'h0, io_b[63:52]} - 14'h7C8;
  wire         doSubMags = signProd ^ io_c[64] ^ io_op[0];
  wire [13:0]  _sNatCAlignDist_T = _sExpAlignedProd_T_1 - {2'h0, io_c[63:52]};
  wire         isMinCAlign =
    ~_rawA_out_sig_T | ~_rawB_out_sig_T | $signed(_sNatCAlignDist_T) < 14'sh0;
  wire         CIsDominant =
    _rawC_out_sig_T & (isMinCAlign | _sNatCAlignDist_T[12:0] < 13'h36);
  wire [7:0]   CAlignDist =
    isMinCAlign
      ? 8'h0
      : _sNatCAlignDist_T[12:0] < 13'hA1 ? _sNatCAlignDist_T[7:0] : 8'hA1;
  wire [164:0] mainAlignedSigC =
    $unsigned($signed($signed({doSubMags
                                 ? {1'h1, ~_rawC_out_sig_T, ~(io_c[51:0])}
                                 : {1'h0, _rawC_out_sig_T, io_c[51:0]},
                               {111{doSubMags}}}) >>> CAlignDist));
  wire [64:0]  reduced4CExtra_shift =
    $unsigned($signed(65'sh10000000000000000 >>> CAlignDist[7:2]));
  wire [7:0]   _reduced4CExtra_T_13 =
    {4'h0, reduced4CExtra_shift[31:28]} | {reduced4CExtra_shift[27:24], 4'h0};
  wire [7:0]   _reduced4CExtra_T_23 =
    {2'h0, _reduced4CExtra_T_13[7:2] & 6'h33} | {_reduced4CExtra_T_13[5:0] & 6'h33, 2'h0};
  wire [12:0]  _GEN =
    {|(io_c[51:48]),
     |(io_c[47:44]),
     |(io_c[43:40]),
     |(io_c[39:36]),
     |(io_c[35:32]),
     |(io_c[31:28]),
     |(io_c[27:24]),
     |(io_c[23:20]),
     |(io_c[19:16]),
     |(io_c[15:12]),
     |(io_c[11:8]),
     |(io_c[7:4]),
     |(io_c[3:0])}
    & {{1'h0, _reduced4CExtra_T_23[7:1] & 7'h55}
         | {_reduced4CExtra_T_23[6:0] & 7'h55, 1'h0},
       reduced4CExtra_shift[32],
       reduced4CExtra_shift[33],
       reduced4CExtra_shift[34],
       reduced4CExtra_shift[35],
       reduced4CExtra_shift[36]};
  assign io_mulAddA = {_rawA_out_sig_T, io_a[51:0]};
  assign io_mulAddB = {_rawB_out_sig_T, io_b[51:0]};
  assign io_mulAddC = mainAlignedSigC[108:3];
  assign io_toPostMul_isSigNaNAny =
    rawA_isNaN & ~(io_a[51]) | rawB_isNaN & ~(io_b[51]) | rawC_isNaN & ~(io_c[51]);
  assign io_toPostMul_isNaNAOrB = rawA_isNaN | rawB_isNaN;
  assign io_toPostMul_isInfA = rawA_isSpecial & ~(io_a[61]);
  assign io_toPostMul_isZeroA = ~_rawA_out_sig_T;
  assign io_toPostMul_isInfB = rawB_isSpecial & ~(io_b[61]);
  assign io_toPostMul_isZeroB = ~_rawB_out_sig_T;
  assign io_toPostMul_signProd = signProd;
  assign io_toPostMul_isNaNC = rawC_isNaN;
  assign io_toPostMul_isInfC = rawC_isSpecial & ~(io_c[61]);
  assign io_toPostMul_isZeroC = ~_rawC_out_sig_T;
  assign io_toPostMul_sExpSum =
    CIsDominant ? {1'h0, io_c[63:52]} : _sExpAlignedProd_T_1[12:0] - 13'h35;
  assign io_toPostMul_doSubMags = doSubMags;
  assign io_toPostMul_CIsDominant = CIsDominant;
  assign io_toPostMul_CDom_CAlignDist = CAlignDist[5:0];
  assign io_toPostMul_highAlignedSigC = mainAlignedSigC[163:109];
  assign io_toPostMul_bit0AlignedSigC =
    doSubMags
      ? (&(mainAlignedSigC[2:0])) & _GEN == 13'h0
      : (|{mainAlignedSigC[2:0], _GEN});
endmodule