[6] | 1 | // ========== Copyright Header Begin ========================================== |
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| 2 | // |
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| 3 | // OpenSPARC T1 Processor File: fpu.v |
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| 4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
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| 5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
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| 6 | // |
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| 7 | // The above named program is free software; you can redistribute it and/or |
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| 8 | // modify it under the terms of the GNU General Public |
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| 9 | // License version 2 as published by the Free Software Foundation. |
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| 10 | // |
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| 11 | // The above named program is distributed in the hope that it will be |
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| 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | // General Public License for more details. |
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| 15 | // |
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| 16 | // You should have received a copy of the GNU General Public |
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| 17 | // License along with this work; if not, write to the Free Software |
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| 18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 19 | // |
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| 20 | // ========== Copyright Header End ============================================ |
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| 21 | /////////////////////////////////////////////////////////////////////////////// |
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| 22 | // |
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| 23 | // Floating Point Unit. |
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| 24 | // |
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| 25 | /////////////////////////////////////////////////////////////////////////////// |
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| 26 | |
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| 27 | module fpu ( |
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| 28 | pcx_fpio_data_rdy_px2, |
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| 29 | pcx_fpio_data_px2, |
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| 30 | arst_l, |
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| 31 | grst_l, |
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| 32 | gclk, |
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| 33 | cluster_cken, |
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| 34 | |
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| 35 | fp_cpx_req_cq, |
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| 36 | fp_cpx_data_ca, |
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| 37 | |
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| 38 | ctu_tst_pre_grst_l, |
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| 39 | global_shift_enable, |
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| 40 | ctu_tst_scan_disable, |
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| 41 | ctu_tst_scanmode, |
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| 42 | ctu_tst_macrotest, |
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| 43 | ctu_tst_short_chain, |
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| 44 | |
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| 45 | si, |
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| 46 | so |
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| 47 | ); |
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| 48 | |
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| 49 | |
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| 50 | input pcx_fpio_data_rdy_px2; // FPU request ready from PCX |
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| 51 | input [123:0] pcx_fpio_data_px2; // FPU request data from PCX |
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| 52 | input arst_l; // chip async. reset- asserted low |
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| 53 | input grst_l; // chip sync. reset- asserted low |
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| 54 | input gclk; // chip clock |
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| 55 | input cluster_cken; // cluster clock enable |
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| 56 | |
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| 57 | output [7:0] fp_cpx_req_cq; // FPU result request to CPX |
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| 58 | output [144:0] fp_cpx_data_ca; // FPU result to CPX |
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| 59 | |
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| 60 | input ctu_tst_pre_grst_l; |
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| 61 | input global_shift_enable; |
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| 62 | input ctu_tst_scan_disable; |
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| 63 | input ctu_tst_scanmode; |
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| 64 | input ctu_tst_macrotest; |
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| 65 | input ctu_tst_short_chain; |
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| 66 | input si; // scan in |
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| 67 | output so; // scan out |
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| 68 | |
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| 69 | |
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| 70 | /////////////////////////////////////////////////////////////////////////////// |
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| 71 | // |
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| 72 | // Outputs of fpu_in. |
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| 73 | // |
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| 74 | /////////////////////////////////////////////////////////////////////////////// |
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| 75 | |
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| 76 | wire inq_add; // add pipe request |
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| 77 | wire inq_mul; // multiply pipe request |
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| 78 | wire inq_div; // divide pipe request |
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| 79 | wire [4:0] inq_id; // request ID to the operation pipes |
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| 80 | wire [1:0] inq_rnd_mode; // request rounding mode to op pipes |
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| 81 | wire [1:0] inq_fcc; // request cc ID to op pipes |
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| 82 | wire [7:0] inq_op; // request opcode to op pipes |
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| 83 | wire inq_in1_exp_neq_ffs; // request operand 1 exp!=ff's |
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| 84 | wire inq_in1_exp_eq_0; // request operand 1 exp==0 |
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| 85 | wire inq_in1_53_0_neq_0; // request operand 1[53:0]!=0 |
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| 86 | wire inq_in1_50_0_neq_0; // request operand 1[50:0]!=0 |
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| 87 | wire inq_in1_53_32_neq_0; // request operand 1[53:32]!=0 |
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| 88 | wire [63:0] inq_in1; // request operand 1 to op pipes |
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| 89 | wire inq_in2_exp_neq_ffs; // request operand 2 exp!=ff's |
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| 90 | wire inq_in2_exp_eq_0; // request operand 2 exp==0 |
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| 91 | wire inq_in2_53_0_neq_0; // request operand 2[53:0]!=0 |
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| 92 | wire inq_in2_50_0_neq_0; // request operand 2[50:0]!=0 |
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| 93 | wire inq_in2_53_32_neq_0; // request operand 2[53:32]!=0 |
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| 94 | wire [63:0] inq_in2; // request operand 2 to op pipes |
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| 95 | wire fadd_clken_l; // add pipe clk enable - asserted low |
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| 96 | wire fmul_clken_l; // multiply pipe clk enable - asserted low |
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| 97 | wire fdiv_clken_l; // divide pipe clk enable - asserted low |
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| 98 | |
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| 99 | // 6/20/03: New outputs of fpu_in for fpu-level i_fpu_inq_sram |
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| 100 | |
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| 101 | wire [4:0] fp_id_in; // id to be written into inq_sram |
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| 102 | wire [1:0] fp_rnd_mode_in; // rnd_mode to be written into inq_sram |
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| 103 | wire [1:0] fp_fcc_in; // fcc to be written into inq_sram |
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| 104 | wire [7:0] fp_op_in; // op field to be written into inq_sram |
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| 105 | wire [68:0] fp_src1_in; // operand1, includes pre-computed bits matching special values, such as exp all ffs |
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| 106 | wire [68:0] fp_src2_in; // operand2, includes pre-computed bits matching special values, such as exp all ffs |
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| 107 | wire [3:0] inq_rdaddr; // read address for inq_sram |
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| 108 | wire [3:0] inq_wraddr; // write address for inq_sram |
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| 109 | wire inq_read_en; // read enable for inq_sram |
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| 110 | wire inq_we; // write enable for inq_sram |
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| 111 | |
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| 112 | |
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| 113 | /////////////////////////////////////////////////////////////////////////////// |
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| 114 | // |
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| 115 | // Outputs of i_fpu_inq_sram |
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| 116 | // |
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| 117 | /////////////////////////////////////////////////////////////////////////////// |
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| 118 | |
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| 119 | wire [154:0] inq_dout; // fpu op packet read out from inq_sram |
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| 120 | wire [4:0] inq_dout_unused; // unused bits from sram |
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| 121 | |
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| 122 | |
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| 123 | /////////////////////////////////////////////////////////////////////////////// |
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| 124 | // |
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| 125 | // Outputs of fpu_add. |
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| 126 | // |
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| 127 | /////////////////////////////////////////////////////////////////////////////// |
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| 128 | |
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| 129 | wire a1stg_step; // add pipe load |
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| 130 | wire a6stg_fadd_in; // add pipe output request next cycle |
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| 131 | wire [9:0] add_id_out_in; // add pipe output ID next cycle |
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| 132 | wire a6stg_fcmpop; // compare- add 6 stage |
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| 133 | wire [4:0] add_exc_out; // add pipe result- exception flags |
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| 134 | wire a6stg_dbl_dst; // float double result- add 6 stage |
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| 135 | wire a6stg_sng_dst; // float single result- add 6 stage |
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| 136 | wire a6stg_long_dst; // 64bit integer result- add 6 stage |
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| 137 | wire a6stg_int_dst; // 32bit integer result- add 6 stage |
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| 138 | wire add_sign_out; // add sign output |
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| 139 | wire [10:0] add_exp_out; // add exponent output |
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| 140 | wire [63:0] add_frac_out; // add fraction output |
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| 141 | wire [1:0] add_cc_out; // add pipe result- condition |
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| 142 | wire [1:0] add_fcc_out; // add pipe input fcc passed through |
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| 143 | wire add_pipe_active; // add pipe is executing a valid instr |
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| 144 | |
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| 145 | |
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| 146 | /////////////////////////////////////////////////////////////////////////////// |
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| 147 | // |
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| 148 | // Outputs of fpu_mul. |
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| 149 | // |
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| 150 | /////////////////////////////////////////////////////////////////////////////// |
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| 151 | |
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| 152 | wire m1stg_step; // multiply pipe load |
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| 153 | wire m6stg_fmul_in; // mul pipe output request next cycle |
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| 154 | wire [9:0] m6stg_id_in; // mul pipe output ID next cycle |
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| 155 | wire [4:0] mul_exc_out; // multiply pipe result- exception flags |
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| 156 | wire m6stg_fmul_dbl_dst; // double precision multiply result |
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| 157 | wire m6stg_fmuls; // fmuls- multiply 6 stage |
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| 158 | wire mul_sign_out; // multiply sign output |
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| 159 | wire [10:0] mul_exp_out; // multiply exponent output |
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| 160 | wire [51:0] mul_frac_out; // multiply fraction output |
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| 161 | wire mul_pipe_active; // mul pipe is executing a valid instr |
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| 162 | |
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| 163 | |
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| 164 | /////////////////////////////////////////////////////////////////////////////// |
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| 165 | // |
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| 166 | // Outputs of fpu_div. |
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| 167 | // |
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| 168 | /////////////////////////////////////////////////////////////////////////////// |
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| 169 | |
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| 170 | wire d1stg_step; // divide pipe load |
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| 171 | wire d8stg_fdiv_in; // div pipe output request next cycle |
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| 172 | wire [9:0] div_id_out_in; // div pipe output ID next cycle |
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| 173 | wire [4:0] div_exc_out; // divide pipe result- exception flags |
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| 174 | wire d8stg_fdivd; // divide double- divide stage 8 |
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| 175 | wire d8stg_fdivs; // divide single- divide stage 8 |
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| 176 | wire div_sign_out; // divide sign output |
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| 177 | wire [10:0] div_exp_out; // divide exponent output |
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| 178 | wire [51:0] div_frac_out; // divide fraction output |
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| 179 | wire div_pipe_active; // div pipe is executing a valid instr |
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| 180 | |
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| 181 | |
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| 182 | /////////////////////////////////////////////////////////////////////////////// |
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| 183 | // |
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| 184 | // Outputs of fpu_out. |
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| 185 | // |
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| 186 | /////////////////////////////////////////////////////////////////////////////// |
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| 187 | |
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| 188 | wire [7:0] fp_cpx_req_cq_unbuf; // FPU result request to CPX |
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| 189 | wire add_dest_rdy; // add pipe result request this cycle |
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| 190 | wire mul_dest_rdy; // mul pipe result request this cycle |
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| 191 | wire div_dest_rdy; // div pipe result request this cycle |
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| 192 | wire [144:0] fp_cpx_data_ca_unbuf; // FPU result to CPX |
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| 193 | |
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| 194 | |
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| 195 | /////////////////////////////////////////////////////////////////////////////// |
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| 196 | // |
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| 197 | // Outputs of cluster_header, test_stub. |
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| 198 | // |
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| 199 | /////////////////////////////////////////////////////////////////////////////// |
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| 200 | |
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| 201 | wire rclk; // ref. clock |
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| 202 | |
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| 203 | wire sehold; // scan in data hold |
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| 204 | |
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| 205 | wire fpu_grst_l; |
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| 206 | |
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| 207 | /////////////////////////////////////////////////////////////////////////////// |
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| 208 | // |
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| 209 | // Outputs of fpu_rptr_groups. |
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| 210 | // |
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| 211 | /////////////////////////////////////////////////////////////////////////////// |
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| 212 | |
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| 213 | wire [63:0] inq_in1_add_buf1; |
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| 214 | wire [63:0] inq_in1_mul_buf1; |
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| 215 | wire [63:0] inq_in1_div_buf1; |
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| 216 | wire [63:0] inq_in2_add_buf1; |
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| 217 | wire [63:0] inq_in2_mul_buf1; |
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| 218 | wire [63:0] inq_in2_div_buf1; |
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| 219 | wire [4:0] inq_id_add_buf1; |
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| 220 | wire [4:0] inq_id_mul_buf1; |
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| 221 | wire [4:0] inq_id_div_buf1; |
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| 222 | wire [7:0] inq_op_add_buf1; |
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| 223 | wire [7:0] inq_op_mul_buf1; |
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| 224 | wire [7:0] inq_op_div_buf1; |
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| 225 | wire [1:0] inq_rnd_mode_add_buf1; |
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| 226 | wire [1:0] inq_rnd_mode_mul_buf1; |
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| 227 | wire [1:0] inq_rnd_mode_div_buf1; |
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| 228 | wire inq_in1_50_0_neq_0_add_buf1; |
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| 229 | wire inq_in1_50_0_neq_0_mul_buf1; |
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| 230 | wire inq_in1_50_0_neq_0_div_buf1; |
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| 231 | wire inq_in1_53_0_neq_0_add_buf1; |
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| 232 | wire inq_in1_53_0_neq_0_mul_buf1; |
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| 233 | wire inq_in1_53_0_neq_0_div_buf1; |
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| 234 | wire inq_in1_53_32_neq_0_add_buf1; |
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| 235 | wire inq_in1_53_32_neq_0_mul_buf1; |
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| 236 | wire inq_in1_53_32_neq_0_div_buf1; |
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| 237 | wire inq_in1_exp_eq_0_add_buf1; |
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| 238 | wire inq_in1_exp_eq_0_mul_buf1; |
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| 239 | wire inq_in1_exp_eq_0_div_buf1; |
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| 240 | wire inq_in1_exp_neq_ffs_add_buf1; |
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| 241 | wire inq_in1_exp_neq_ffs_mul_buf1; |
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| 242 | wire inq_in1_exp_neq_ffs_div_buf1; |
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| 243 | wire inq_in2_50_0_neq_0_add_buf1; |
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| 244 | wire inq_in2_50_0_neq_0_mul_buf1; |
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| 245 | wire inq_in2_50_0_neq_0_div_buf1; |
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| 246 | wire inq_in2_53_0_neq_0_add_buf1; |
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| 247 | wire inq_in2_53_0_neq_0_mul_buf1; |
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| 248 | wire inq_in2_53_0_neq_0_div_buf1; |
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| 249 | wire inq_in2_53_32_neq_0_add_buf1; |
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| 250 | wire inq_in2_53_32_neq_0_mul_buf1; |
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| 251 | wire inq_in2_53_32_neq_0_div_buf1; |
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| 252 | wire inq_in2_exp_eq_0_add_buf1; |
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| 253 | wire inq_in2_exp_eq_0_mul_buf1; |
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| 254 | wire inq_in2_exp_eq_0_div_buf1; |
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| 255 | wire inq_in2_exp_neq_ffs_add_buf1; |
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| 256 | wire inq_in2_exp_neq_ffs_mul_buf1; |
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| 257 | wire inq_in2_exp_neq_ffs_div_buf1; |
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| 258 | |
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| 259 | wire [123:0] pcx_fpio_data_px2_buf1; |
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| 260 | wire [155:0] inq_sram_din_buf1; |
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| 261 | |
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| 262 | /////////////////////////////////////////////////////////////////////////////// |
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| 263 | // |
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| 264 | // Instantiations. |
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| 265 | // |
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| 266 | /////////////////////////////////////////////////////////////////////////////// |
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| 267 | |
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| 268 | fpu_in fpu_in ( |
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| 269 | .pcx_fpio_data_rdy_px2 (pcx_fpio_data_rdy_px2_buf1), |
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| 270 | .pcx_fpio_data_px2 (pcx_fpio_data_px2_buf1[123:0]), |
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| 271 | .a1stg_step (a1stg_step), |
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| 272 | .m1stg_step (m1stg_step), |
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| 273 | .d1stg_step (d1stg_step), |
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| 274 | .add_pipe_active (add_pipe_active), |
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| 275 | .mul_pipe_active (mul_pipe_active), |
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| 276 | .div_pipe_active (div_pipe_active), |
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| 277 | .inq_dout (inq_dout[154:0]), |
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| 278 | .sehold (sehold), |
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| 279 | .arst_l (arst_l_in_buf3), |
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| 280 | .grst_l (fpu_grst_l_in_buf2), |
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| 281 | .rclk (rclk), |
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| 282 | |
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| 283 | .fadd_clken_l (fadd_clken_l), |
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| 284 | .fmul_clken_l (fmul_clken_l), |
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| 285 | .fdiv_clken_l (fdiv_clken_l), |
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| 286 | |
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| 287 | .inq_add (inq_add), |
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| 288 | .inq_mul (inq_mul), |
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| 289 | .inq_div (inq_div), |
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| 290 | .inq_id (inq_id[4:0]), |
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| 291 | .inq_rnd_mode (inq_rnd_mode[1:0]), |
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| 292 | .inq_fcc (inq_fcc[1:0]), |
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| 293 | .inq_op (inq_op[7:0]), |
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| 294 | .inq_in1_exp_neq_ffs (inq_in1_exp_neq_ffs), |
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| 295 | .inq_in1_exp_eq_0 (inq_in1_exp_eq_0), |
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| 296 | .inq_in1_53_0_neq_0 (inq_in1_53_0_neq_0), |
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| 297 | .inq_in1_50_0_neq_0 (inq_in1_50_0_neq_0), |
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| 298 | .inq_in1_53_32_neq_0 (inq_in1_53_32_neq_0), |
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| 299 | .inq_in1 (inq_in1[63:0]), |
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| 300 | .inq_in2_exp_neq_ffs (inq_in2_exp_neq_ffs), |
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| 301 | .inq_in2_exp_eq_0 (inq_in2_exp_eq_0), |
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| 302 | .inq_in2_53_0_neq_0 (inq_in2_53_0_neq_0), |
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| 303 | .inq_in2_50_0_neq_0 (inq_in2_50_0_neq_0), |
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| 304 | .inq_in2_53_32_neq_0 (inq_in2_53_32_neq_0), |
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| 305 | .inq_in2 (inq_in2[63:0]), |
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| 306 | |
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| 307 | // new outputs of fpu_in to drive i_fpu_inq_sram |
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| 308 | .fp_id_in (fp_id_in[4:0]), |
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| 309 | .fp_rnd_mode_in (fp_rnd_mode_in[1:0]), |
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| 310 | .fp_fcc_in (fp_fcc_in[1:0]), |
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| 311 | .fp_op_in (fp_op_in[7:0]), |
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| 312 | .fp_src1_in (fp_src1_in[68:0]), |
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| 313 | .fp_src2_in (fp_src2_in[68:0]), |
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| 314 | .inq_rdaddr (inq_rdaddr[3:0]), |
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| 315 | .inq_wraddr (inq_wraddr[3:0]), |
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| 316 | .inq_read_en (inq_read_en), |
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| 317 | .inq_we (inq_we), |
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| 318 | |
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| 319 | .se (se_in_buf3), |
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| 320 | .si (manual_scan_0), |
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| 321 | .so (scan_manual_1) |
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| 322 | ); |
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| 323 | |
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| 324 | |
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| 325 | // 7/30/03: updated scan ports from si to si_r, si_w and so to so_r, so_w |
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| 326 | // 06/20/03: Pulled up i_fpu_inq_sram from fpu_in_dp into fpu |
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| 327 | |
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| 328 | bw_r_rf16x160 i_fpu_inq_sram ( |
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| 329 | .din ({inq_sram_din_buf1[155:0], 4'b0000}), |
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| 330 | .rd_adr (inq_rdaddr[3:0]), |
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| 331 | .wr_adr (inq_wraddr[3:0]), |
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| 332 | .read_en (inq_read_en), |
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| 333 | .wr_en (inq_we), |
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| 334 | .word_wen (4'hf), |
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| 335 | .byte_wen (20'hfffff), |
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| 336 | .rd_clk (rclk), |
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| 337 | .wr_clk (rclk), |
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| 338 | .se (se), |
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| 339 | .si_r (si_buf1), |
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| 340 | .si_w (scan_inq_sram_w), |
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| 341 | .reset_l (arst_l_in_buf3), |
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| 342 | .sehold (sehold), |
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| 343 | .rst_tri_en (rst_tri_en), |
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| 344 | .dout ({inq_dout[154:0], inq_dout_unused[4:0]}), |
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| 345 | .so_r (scan_inq_sram_w), |
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| 346 | .so_w (manual_scan_0) |
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| 347 | ); |
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| 348 | |
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| 349 | |
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| 350 | fpu_add fpu_add ( |
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| 351 | .inq_op (inq_op_add_buf1[7:0]), |
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| 352 | .inq_rnd_mode (inq_rnd_mode_add_buf1[1:0]), |
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| 353 | .inq_id (inq_id_add_buf1[4:0]), |
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| 354 | .inq_fcc (inq_fcc[1:0]), |
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| 355 | .inq_in1 (inq_in1_add_buf1[63:0]), |
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| 356 | .inq_in1_50_0_neq_0 (inq_in1_50_0_neq_0_add_buf1), |
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| 357 | .inq_in1_53_32_neq_0 (inq_in1_53_32_neq_0_add_buf1), |
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| 358 | .inq_in1_exp_eq_0 (inq_in1_exp_eq_0_add_buf1), |
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| 359 | .inq_in1_exp_neq_ffs (inq_in1_exp_neq_ffs_add_buf1), |
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| 360 | .inq_in2 (inq_in2_add_buf1[63:0]), |
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| 361 | .inq_in2_50_0_neq_0 (inq_in2_50_0_neq_0_add_buf1), |
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| 362 | .inq_in2_53_32_neq_0 (inq_in2_53_32_neq_0_add_buf1), |
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| 363 | .inq_in2_exp_eq_0 (inq_in2_exp_eq_0_add_buf1), |
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| 364 | .inq_in2_exp_neq_ffs (inq_in2_exp_neq_ffs_add_buf1), |
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| 365 | .inq_add (inq_add), |
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| 366 | .add_dest_rdy (add_dest_rdy), |
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| 367 | .fadd_clken_l (fadd_clken_l), |
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| 368 | .arst_l (arst_l_add_buf4), |
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| 369 | .grst_l (fpu_grst_l_add_buf3), |
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| 370 | .rclk (rclk), |
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| 371 | |
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| 372 | .add_pipe_active (add_pipe_active), |
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| 373 | .a1stg_step (a1stg_step), |
---|
| 374 | .a6stg_fadd_in (a6stg_fadd_in), |
---|
| 375 | .add_id_out_in (add_id_out_in[9:0]), |
---|
| 376 | .a6stg_fcmpop (a6stg_fcmpop), |
---|
| 377 | .add_exc_out (add_exc_out[4:0]), |
---|
| 378 | .a6stg_dbl_dst (a6stg_dbl_dst), |
---|
| 379 | .a6stg_sng_dst (a6stg_sng_dst), |
---|
| 380 | .a6stg_long_dst (a6stg_long_dst), |
---|
| 381 | .a6stg_int_dst (a6stg_int_dst), |
---|
| 382 | .add_sign_out (add_sign_out), |
---|
| 383 | .add_exp_out (add_exp_out[10:0]), |
---|
| 384 | .add_frac_out (add_frac_out[63:0]), |
---|
| 385 | .add_cc_out (add_cc_out[1:0]), |
---|
| 386 | .add_fcc_out (add_fcc_out[1:0]), |
---|
| 387 | |
---|
| 388 | .se_add_exp (se_add_exp_buf2), |
---|
| 389 | .se_add_frac (se_add_frac_buf2), |
---|
| 390 | .si (scan_manual_1), |
---|
| 391 | .so (scan_manual_2) |
---|
| 392 | ); |
---|
| 393 | |
---|
| 394 | |
---|
| 395 | fpu_mul fpu_mul ( |
---|
| 396 | .inq_op (inq_op_mul_buf1[7:0]), |
---|
| 397 | .inq_rnd_mode (inq_rnd_mode_mul_buf1[1:0]), |
---|
| 398 | .inq_id (inq_id_mul_buf1[4:0]), |
---|
| 399 | .inq_in1 (inq_in1_mul_buf1[63:0]), |
---|
| 400 | .inq_in1_53_0_neq_0 (inq_in1_53_0_neq_0), |
---|
| 401 | .inq_in1_50_0_neq_0 (inq_in1_50_0_neq_0_mul_buf1), |
---|
| 402 | .inq_in1_53_32_neq_0 (inq_in1_53_32_neq_0_mul_buf1), |
---|
| 403 | .inq_in1_exp_eq_0 (inq_in1_exp_eq_0_mul_buf1), |
---|
| 404 | .inq_in1_exp_neq_ffs (inq_in1_exp_neq_ffs_mul_buf1), |
---|
| 405 | .inq_in2 (inq_in2_mul_buf1[63:0]), |
---|
| 406 | .inq_in2_53_0_neq_0 (inq_in2_53_0_neq_0), |
---|
| 407 | .inq_in2_50_0_neq_0 (inq_in2_50_0_neq_0_mul_buf1), |
---|
| 408 | .inq_in2_53_32_neq_0 (inq_in2_53_32_neq_0_mul_buf1), |
---|
| 409 | .inq_in2_exp_eq_0 (inq_in2_exp_eq_0_mul_buf1), |
---|
| 410 | .inq_in2_exp_neq_ffs (inq_in2_exp_neq_ffs_mul_buf1), |
---|
| 411 | .inq_mul (inq_mul), |
---|
| 412 | .mul_dest_rdy (mul_dest_rdy), |
---|
| 413 | .mul_dest_rdya (mul_dest_rdy), |
---|
| 414 | .fmul_clken_l (fmul_clken_l), |
---|
| 415 | .fmul_clken_l_buf1 (fmul_clken_l_buf1), |
---|
| 416 | .arst_l (arst_l_mul_buf2), |
---|
| 417 | .grst_l (fpu_grst_l_mul_buf1), |
---|
| 418 | .rclk (rclk), |
---|
| 419 | |
---|
| 420 | .mul_pipe_active (mul_pipe_active), |
---|
| 421 | .m1stg_step (m1stg_step), |
---|
| 422 | .m6stg_fmul_in (m6stg_fmul_in), |
---|
| 423 | .m6stg_id_in (m6stg_id_in[9:0]), |
---|
| 424 | .mul_exc_out (mul_exc_out[4:0]), |
---|
| 425 | .m6stg_fmul_dbl_dst (m6stg_fmul_dbl_dst), |
---|
| 426 | .m6stg_fmuls (m6stg_fmuls), |
---|
| 427 | .mul_sign_out (mul_sign_out), |
---|
| 428 | .mul_exp_out (mul_exp_out[10:0]), |
---|
| 429 | .mul_frac_out (mul_frac_out[51:0]), |
---|
| 430 | |
---|
| 431 | .se_mul (se_mul_buf4), |
---|
| 432 | .se_mul64 (se_mul64_buf2), |
---|
| 433 | .si (scan_manual_2), |
---|
| 434 | .so (scan_manual_3) |
---|
| 435 | ); |
---|
| 436 | |
---|
| 437 | |
---|
| 438 | fpu_div fpu_div ( |
---|
| 439 | .inq_op (inq_op_div_buf1[7:0]), |
---|
| 440 | .inq_rnd_mode (inq_rnd_mode_div_buf1[1:0]), |
---|
| 441 | .inq_id (inq_id_div_buf1[4:0]), |
---|
| 442 | .inq_in1 (inq_in1_div_buf1[63:0]), |
---|
| 443 | .inq_in1_53_0_neq_0 (inq_in1_53_0_neq_0_div_buf1), |
---|
| 444 | .inq_in1_50_0_neq_0 (inq_in1_50_0_neq_0_div_buf1), |
---|
| 445 | .inq_in1_53_32_neq_0 (inq_in1_53_32_neq_0_div_buf1), |
---|
| 446 | .inq_in1_exp_eq_0 (inq_in1_exp_eq_0_div_buf1), |
---|
| 447 | .inq_in1_exp_neq_ffs (inq_in1_exp_neq_ffs_div_buf1), |
---|
| 448 | .inq_in2 (inq_in2_div_buf1[63:0]), |
---|
| 449 | .inq_in2_53_0_neq_0 (inq_in2_53_0_neq_0_div_buf1), |
---|
| 450 | .inq_in2_50_0_neq_0 (inq_in2_50_0_neq_0_div_buf1), |
---|
| 451 | .inq_in2_53_32_neq_0 (inq_in2_53_32_neq_0_div_buf1), |
---|
| 452 | .inq_in2_exp_eq_0 (inq_in2_exp_eq_0_div_buf1), |
---|
| 453 | .inq_in2_exp_neq_ffs (inq_in2_exp_neq_ffs_div_buf1), |
---|
| 454 | .inq_div (inq_div), |
---|
| 455 | .div_dest_rdy (div_dest_rdy), |
---|
| 456 | .fdiv_clken_l (fdiv_clken_l_div_frac_buf1), |
---|
| 457 | .fdiv_clken_l_div_exp_buf1 (fdiv_clken_l_div_exp_buf1), |
---|
| 458 | .arst_l (arst_l_div_buf2), |
---|
| 459 | .grst_l (fpu_grst_l), |
---|
| 460 | .rclk (rclk), |
---|
| 461 | |
---|
| 462 | .div_pipe_active (div_pipe_active), |
---|
| 463 | .d1stg_step (d1stg_step), |
---|
| 464 | .d8stg_fdiv_in (d8stg_fdiv_in), |
---|
| 465 | .div_id_out_in (div_id_out_in[9:0]), |
---|
| 466 | .div_exc_out (div_exc_out[4:0]), |
---|
| 467 | .d8stg_fdivd (d8stg_fdivd), |
---|
| 468 | .d8stg_fdivs (d8stg_fdivs), |
---|
| 469 | .div_sign_out (div_sign_out), |
---|
| 470 | .div_exp_outa (div_exp_out[10:0]), |
---|
| 471 | .div_frac_outa (div_frac_out[51:0]), |
---|
| 472 | |
---|
| 473 | .se (se_div_buf5), |
---|
| 474 | .si (scan_manual_3), |
---|
| 475 | .so (scan_manual_4) |
---|
| 476 | ); |
---|
| 477 | |
---|
| 478 | |
---|
| 479 | fpu_out fpu_out ( |
---|
| 480 | .d8stg_fdiv_in (d8stg_fdiv_in), |
---|
| 481 | .m6stg_fmul_in (m6stg_fmul_in), |
---|
| 482 | .a6stg_fadd_in (a6stg_fadd_in), |
---|
| 483 | .div_id_out_in (div_id_out_in[9:0]), |
---|
| 484 | .m6stg_id_in (m6stg_id_in[9:0]), |
---|
| 485 | .add_id_out_in (add_id_out_in[9:0]), |
---|
| 486 | .div_exc_out (div_exc_out[4:0]), |
---|
| 487 | .d8stg_fdivd (d8stg_fdivd), |
---|
| 488 | .d8stg_fdivs (d8stg_fdivs), |
---|
| 489 | .div_sign_out (div_sign_out), |
---|
| 490 | .div_exp_out (div_exp_out[10:0]), |
---|
| 491 | .div_frac_out (div_frac_out[51:0]), |
---|
| 492 | .mul_exc_out (mul_exc_out[4:0]), |
---|
| 493 | .m6stg_fmul_dbl_dst (m6stg_fmul_dbl_dst), |
---|
| 494 | .m6stg_fmuls (m6stg_fmuls), |
---|
| 495 | .mul_sign_out (mul_sign_out), |
---|
| 496 | .mul_exp_out (mul_exp_out[10:0]), |
---|
| 497 | .mul_frac_out (mul_frac_out[51:0]), |
---|
| 498 | .add_exc_out (add_exc_out[4:0]), |
---|
| 499 | .a6stg_fcmpop (a6stg_fcmpop), |
---|
| 500 | .add_cc_out (add_cc_out[1:0]), |
---|
| 501 | .add_fcc_out (add_fcc_out[1:0]), |
---|
| 502 | .a6stg_dbl_dst (a6stg_dbl_dst), |
---|
| 503 | .a6stg_sng_dst (a6stg_sng_dst), |
---|
| 504 | .a6stg_long_dst (a6stg_long_dst), |
---|
| 505 | .a6stg_int_dst (a6stg_int_dst), |
---|
| 506 | .add_sign_out (add_sign_out), |
---|
| 507 | .add_exp_out (add_exp_out[10:0]), |
---|
| 508 | .add_frac_out (add_frac_out[63:0]), |
---|
| 509 | .arst_l (arst_l_out_buf3), |
---|
| 510 | .grst_l (fpu_grst_l_add_buf3), |
---|
| 511 | .rclk (rclk), |
---|
| 512 | |
---|
| 513 | .fp_cpx_req_cq (fp_cpx_req_cq_unbuf[7:0]), |
---|
| 514 | .add_dest_rdy (add_dest_rdy), |
---|
| 515 | .mul_dest_rdy (mul_dest_rdy), |
---|
| 516 | .div_dest_rdy (div_dest_rdy), |
---|
| 517 | .fp_cpx_data_ca (fp_cpx_data_ca_unbuf[144:0]), |
---|
| 518 | |
---|
| 519 | .se (se_out_buf2), |
---|
| 520 | .si (scan_manual_4), |
---|
| 521 | .so (scan_manual_5) |
---|
| 522 | ); |
---|
| 523 | |
---|
| 524 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 525 | // |
---|
| 526 | // FPU test_stub. |
---|
| 527 | // |
---|
| 528 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 529 | |
---|
| 530 | test_stub_scan test_stub ( |
---|
| 531 | .ctu_tst_pre_grst_l (ctu_tst_pre_grst_l_buf1), |
---|
| 532 | .arst_l (arst_l_add_buf4), |
---|
| 533 | .global_shift_enable (global_shift_enable_buf1), |
---|
| 534 | .ctu_tst_scan_disable (ctu_tst_scan_disable_buf1), |
---|
| 535 | .ctu_tst_scanmode (ctu_tst_scanmode_buf1), |
---|
| 536 | .ctu_tst_macrotest (ctu_tst_macrotest_buf1), |
---|
| 537 | .ctu_tst_short_chain (ctu_tst_short_chain_buf1), |
---|
| 538 | .long_chain_so_0 (scan_manual_6_buf1), // connect to long scan chain |
---|
| 539 | .short_chain_so_0 (manual_scan_0), // connect to short scan chain (from fpu_inq_sram) |
---|
| 540 | .long_chain_so_1 (1'b0), |
---|
| 541 | .short_chain_so_1 (1'b0), |
---|
| 542 | .long_chain_so_2 (1'b0), |
---|
| 543 | .short_chain_so_2 (1'b0), |
---|
| 544 | |
---|
| 545 | .mux_drive_disable (), |
---|
| 546 | .mem_write_disable (rst_tri_en), |
---|
| 547 | .sehold (sehold), |
---|
| 548 | .se (se), |
---|
| 549 | .testmode_l (), |
---|
| 550 | .mem_bypass (), |
---|
| 551 | .so_0 (so_unbuf), |
---|
| 552 | .so_1 (), |
---|
| 553 | .so_2 () |
---|
| 554 | ); |
---|
| 555 | |
---|
| 556 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 557 | // |
---|
| 558 | // FPU cluster_header. |
---|
| 559 | // |
---|
| 560 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 561 | |
---|
| 562 | bw_clk_cl_fpu_cmp cluster_header ( |
---|
| 563 | .gclk (gclk), |
---|
| 564 | .cluster_cken (cluster_cken_buf1), |
---|
| 565 | .arst_l (arst_l_cluster_header_buf2), |
---|
| 566 | .grst_l (grst_l_buf1), |
---|
| 567 | .adbginit_l (1'b1), |
---|
| 568 | .gdbginit_l (1'b1), |
---|
| 569 | .dbginit_l (), |
---|
| 570 | .cluster_grst_l (fpu_grst_l), |
---|
| 571 | .rclk (rclk), |
---|
| 572 | .se (se_cluster_header_buf2), |
---|
| 573 | .si (scan_manual_5), |
---|
| 574 | .so (scan_manual_6) |
---|
| 575 | ); |
---|
| 576 | |
---|
| 577 | |
---|
| 578 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 579 | // |
---|
| 580 | // FPU repeater_groups. |
---|
| 581 | // |
---|
| 582 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 583 | |
---|
| 584 | // 3/14/03: Added repeater groups |
---|
| 585 | fpu_rptr_groups fpu_rptr_groups ( |
---|
| 586 | .inq_in1 (inq_in1[63:0]), |
---|
| 587 | .inq_in2 (inq_in2[63:0]), |
---|
| 588 | .inq_id (inq_id[4:0]), |
---|
| 589 | .inq_op (inq_op[7:0]), |
---|
| 590 | .inq_rnd_mode (inq_rnd_mode[1:0]), |
---|
| 591 | .inq_in1_50_0_neq_0 (inq_in1_50_0_neq_0), |
---|
| 592 | .inq_in1_53_0_neq_0 (inq_in1_53_0_neq_0), |
---|
| 593 | .inq_in1_53_32_neq_0 (inq_in1_53_32_neq_0), |
---|
| 594 | .inq_in1_exp_eq_0 (inq_in1_exp_eq_0), |
---|
| 595 | .inq_in1_exp_neq_ffs (inq_in1_exp_neq_ffs), |
---|
| 596 | .inq_in2_50_0_neq_0 (inq_in2_50_0_neq_0), |
---|
| 597 | .inq_in2_53_0_neq_0 (inq_in2_53_0_neq_0), |
---|
| 598 | .inq_in2_53_32_neq_0 (inq_in2_53_32_neq_0), |
---|
| 599 | .inq_in2_exp_eq_0 (inq_in2_exp_eq_0), |
---|
| 600 | .inq_in2_exp_neq_ffs (inq_in2_exp_neq_ffs), |
---|
| 601 | |
---|
| 602 | .ctu_tst_macrotest (ctu_tst_macrotest), |
---|
| 603 | .ctu_tst_pre_grst_l (ctu_tst_pre_grst_l), |
---|
| 604 | .ctu_tst_scan_disable (ctu_tst_scan_disable), |
---|
| 605 | .ctu_tst_scanmode (ctu_tst_scanmode), |
---|
| 606 | .ctu_tst_short_chain (ctu_tst_short_chain), |
---|
| 607 | .global_shift_enable (global_shift_enable), |
---|
| 608 | |
---|
| 609 | .grst_l (grst_l), |
---|
| 610 | .cluster_cken (cluster_cken), |
---|
| 611 | |
---|
| 612 | .se (se), |
---|
| 613 | |
---|
| 614 | .arst_l (arst_l), |
---|
| 615 | |
---|
| 616 | .fpu_grst_l (fpu_grst_l), |
---|
| 617 | |
---|
| 618 | .fmul_clken_l (fmul_clken_l), |
---|
| 619 | .fdiv_clken_l (fdiv_clken_l), |
---|
| 620 | |
---|
| 621 | .scan_manual_6 (scan_manual_6), |
---|
| 622 | |
---|
| 623 | .si (si), |
---|
| 624 | .so_unbuf (so_unbuf), |
---|
| 625 | |
---|
| 626 | .pcx_fpio_data_px2 (pcx_fpio_data_px2[123:0]), |
---|
| 627 | .pcx_fpio_data_rdy_px2 (pcx_fpio_data_rdy_px2), |
---|
| 628 | |
---|
| 629 | .fp_cpx_data_ca (fp_cpx_data_ca_unbuf[144:0]), |
---|
| 630 | .fp_cpx_req_cq (fp_cpx_req_cq_unbuf[7:0]), |
---|
| 631 | |
---|
| 632 | .inq_sram_din_unbuf ({fp_id_in[4:0], |
---|
| 633 | fp_rnd_mode_in[1:0], |
---|
| 634 | fp_fcc_in[1:0], |
---|
| 635 | fp_op_in[7:0], |
---|
| 636 | fp_src1_in[68:0], |
---|
| 637 | fp_src2_in[68:0], 1'b0}), |
---|
| 638 | |
---|
| 639 | .inq_in1_add_buf1 (inq_in1_add_buf1[63:0]), |
---|
| 640 | .inq_in1_mul_buf1 (inq_in1_mul_buf1[63:0]), |
---|
| 641 | .inq_in1_div_buf1 (inq_in1_div_buf1[63:0]), |
---|
| 642 | .inq_in2_add_buf1 (inq_in2_add_buf1[63:0]), |
---|
| 643 | .inq_in2_mul_buf1 (inq_in2_mul_buf1[63:0]), |
---|
| 644 | .inq_in2_div_buf1 (inq_in2_div_buf1[63:0]), |
---|
| 645 | .inq_id_add_buf1 (inq_id_add_buf1[4:0]), |
---|
| 646 | .inq_id_div_buf1 (inq_id_div_buf1[4:0]), |
---|
| 647 | .inq_id_mul_buf1 (inq_id_mul_buf1[4:0]), |
---|
| 648 | .inq_op_add_buf1 (inq_op_add_buf1[7:0]), |
---|
| 649 | .inq_op_mul_buf1 (inq_op_mul_buf1[7:0]), |
---|
| 650 | .inq_op_div_buf1 (inq_op_div_buf1[7:0]), |
---|
| 651 | .inq_rnd_mode_add_buf1 (inq_rnd_mode_add_buf1[1:0]), |
---|
| 652 | .inq_rnd_mode_mul_buf1 (inq_rnd_mode_mul_buf1[1:0]), |
---|
| 653 | .inq_rnd_mode_div_buf1 (inq_rnd_mode_div_buf1[1:0]), |
---|
| 654 | .inq_in1_50_0_neq_0_add_buf1 (inq_in1_50_0_neq_0_add_buf1), |
---|
| 655 | .inq_in1_50_0_neq_0_mul_buf1 (inq_in1_50_0_neq_0_mul_buf1), |
---|
| 656 | .inq_in1_50_0_neq_0_div_buf1 (inq_in1_50_0_neq_0_div_buf1), |
---|
| 657 | .inq_in1_53_0_neq_0_add_buf1 (inq_in1_53_0_neq_0_add_buf1), |
---|
| 658 | .inq_in1_53_0_neq_0_mul_buf1 (inq_in1_53_0_neq_0_mul_buf1), |
---|
| 659 | .inq_in1_53_0_neq_0_div_buf1 (inq_in1_53_0_neq_0_div_buf1), |
---|
| 660 | .inq_in1_53_32_neq_0_add_buf1 (inq_in1_53_32_neq_0_add_buf1), |
---|
| 661 | .inq_in1_53_32_neq_0_mul_buf1 (inq_in1_53_32_neq_0_mul_buf1), |
---|
| 662 | .inq_in1_53_32_neq_0_div_buf1 (inq_in1_53_32_neq_0_div_buf1), |
---|
| 663 | .inq_in1_exp_eq_0_add_buf1 (inq_in1_exp_eq_0_add_buf1), |
---|
| 664 | .inq_in1_exp_eq_0_mul_buf1 (inq_in1_exp_eq_0_mul_buf1), |
---|
| 665 | .inq_in1_exp_eq_0_div_buf1 (inq_in1_exp_eq_0_div_buf1), |
---|
| 666 | .inq_in1_exp_neq_ffs_add_buf1 (inq_in1_exp_neq_ffs_add_buf1), |
---|
| 667 | .inq_in1_exp_neq_ffs_mul_buf1 (inq_in1_exp_neq_ffs_mul_buf1), |
---|
| 668 | .inq_in1_exp_neq_ffs_div_buf1 (inq_in1_exp_neq_ffs_div_buf1), |
---|
| 669 | .inq_in2_50_0_neq_0_add_buf1 (inq_in2_50_0_neq_0_add_buf1), |
---|
| 670 | .inq_in2_50_0_neq_0_mul_buf1 (inq_in2_50_0_neq_0_mul_buf1), |
---|
| 671 | .inq_in2_50_0_neq_0_div_buf1 (inq_in2_50_0_neq_0_div_buf1), |
---|
| 672 | .inq_in2_53_0_neq_0_add_buf1 (inq_in2_53_0_neq_0_add_buf1), |
---|
| 673 | .inq_in2_53_0_neq_0_mul_buf1 (inq_in2_53_0_neq_0_mul_buf1), |
---|
| 674 | .inq_in2_53_0_neq_0_div_buf1 (inq_in2_53_0_neq_0_div_buf1), |
---|
| 675 | .inq_in2_53_32_neq_0_add_buf1 (inq_in2_53_32_neq_0_add_buf1), |
---|
| 676 | .inq_in2_53_32_neq_0_mul_buf1 (inq_in2_53_32_neq_0_mul_buf1), |
---|
| 677 | .inq_in2_53_32_neq_0_div_buf1 (inq_in2_53_32_neq_0_div_buf1), |
---|
| 678 | .inq_in2_exp_eq_0_add_buf1 (inq_in2_exp_eq_0_add_buf1), |
---|
| 679 | .inq_in2_exp_eq_0_mul_buf1 (inq_in2_exp_eq_0_mul_buf1), |
---|
| 680 | .inq_in2_exp_eq_0_div_buf1 (inq_in2_exp_eq_0_div_buf1), |
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| 681 | .inq_in2_exp_neq_ffs_add_buf1 (inq_in2_exp_neq_ffs_add_buf1), |
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| 682 | .inq_in2_exp_neq_ffs_mul_buf1 (inq_in2_exp_neq_ffs_mul_buf1), |
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| 683 | .inq_in2_exp_neq_ffs_div_buf1 (inq_in2_exp_neq_ffs_div_buf1), |
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| 684 | |
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| 685 | .ctu_tst_macrotest_buf1 (ctu_tst_macrotest_buf1), |
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| 686 | .ctu_tst_pre_grst_l_buf1 (ctu_tst_pre_grst_l_buf1), |
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| 687 | .ctu_tst_scan_disable_buf1 (ctu_tst_scan_disable_buf1), |
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| 688 | .ctu_tst_scanmode_buf1 (ctu_tst_scanmode_buf1), |
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| 689 | .ctu_tst_short_chain_buf1 (ctu_tst_short_chain_buf1), |
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| 690 | .global_shift_enable_buf1 (global_shift_enable_buf1), |
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| 691 | |
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| 692 | .grst_l_buf1 (grst_l_buf1), |
---|
| 693 | .cluster_cken_buf1 (cluster_cken_buf1), |
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| 694 | |
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| 695 | .se_add_exp_buf2 (se_add_exp_buf2), |
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| 696 | .se_add_frac_buf2 (se_add_frac_buf2), |
---|
| 697 | .se_out_buf2 (se_out_buf2), |
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| 698 | .se_mul64_buf2 (se_mul64_buf2), |
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| 699 | .se_cluster_header_buf2 (se_cluster_header_buf2), |
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| 700 | .se_in_buf3 (se_in_buf3), |
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| 701 | .se_mul_buf4 (se_mul_buf4), |
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| 702 | .se_div_buf5 (se_div_buf5), |
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| 703 | |
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| 704 | .arst_l_div_buf2 (arst_l_div_buf2), |
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| 705 | .arst_l_mul_buf2 (arst_l_mul_buf2), |
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| 706 | .arst_l_cluster_header_buf2 (arst_l_cluster_header_buf2), |
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| 707 | .arst_l_in_buf3 (arst_l_in_buf3), |
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| 708 | .arst_l_out_buf3 (arst_l_out_buf3), |
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| 709 | .arst_l_add_buf4 (arst_l_add_buf4), |
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| 710 | |
---|
| 711 | .fpu_grst_l_mul_buf1 (fpu_grst_l_mul_buf1), |
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| 712 | .fpu_grst_l_in_buf2 (fpu_grst_l_in_buf2), |
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| 713 | .fpu_grst_l_add_buf3 (fpu_grst_l_add_buf3), |
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| 714 | |
---|
| 715 | .fmul_clken_l_buf1 (fmul_clken_l_buf1), |
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| 716 | .fdiv_clken_l_div_exp_buf1 (fdiv_clken_l_div_exp_buf1), |
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| 717 | .fdiv_clken_l_div_frac_buf1 (fdiv_clken_l_div_frac_buf1), |
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| 718 | |
---|
| 719 | .scan_manual_6_buf1 (scan_manual_6_buf1), |
---|
| 720 | |
---|
| 721 | .si_buf1 (si_buf1), |
---|
| 722 | .so (so), |
---|
| 723 | |
---|
| 724 | .pcx_fpio_data_px2_buf1 (pcx_fpio_data_px2_buf1[123:0]), |
---|
| 725 | .pcx_fpio_data_rdy_px2_buf1 (pcx_fpio_data_rdy_px2_buf1), |
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| 726 | |
---|
| 727 | .fp_cpx_data_ca_buf1 (fp_cpx_data_ca[144:0]), |
---|
| 728 | .fp_cpx_req_cq_buf1 (fp_cpx_req_cq[7:0]), |
---|
| 729 | |
---|
| 730 | .inq_sram_din_buf1 (inq_sram_din_buf1[155:0]) |
---|
| 731 | |
---|
| 732 | ); |
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| 733 | |
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| 734 | |
---|
| 735 | endmodule |
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| 736 | |
---|
| 737 | // Local Variables: |
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| 738 | // verilog-library-directories:("." "../../../srams/rtl") |
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| 739 | // End: |
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| 740 | |
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