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), |
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374 | .a6stg_fadd_in (a6stg_fadd_in), |
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375 | .add_id_out_in (add_id_out_in[9:0]), |
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376 | .a6stg_fcmpop (a6stg_fcmpop), |
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377 | .add_exc_out (add_exc_out[4:0]), |
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378 | .a6stg_dbl_dst (a6stg_dbl_dst), |
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379 | .a6stg_sng_dst (a6stg_sng_dst), |
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380 | .a6stg_long_dst (a6stg_long_dst), |
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381 | .a6stg_int_dst (a6stg_int_dst), |
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382 | .add_sign_out (add_sign_out), |
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383 | .add_exp_out (add_exp_out[10:0]), |
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384 | .add_frac_out (add_frac_out[63:0]), |
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385 | .add_cc_out (add_cc_out[1:0]), |
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386 | .add_fcc_out (add_fcc_out[1:0]), |
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387 | |
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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), |
---|
681 | .inq_in2_exp_neq_ffs_add_buf1 (inq_in2_exp_neq_ffs_add_buf1), |
---|
682 | .inq_in2_exp_neq_ffs_mul_buf1 (inq_in2_exp_neq_ffs_mul_buf1), |
---|
683 | .inq_in2_exp_neq_ffs_div_buf1 (inq_in2_exp_neq_ffs_div_buf1), |
---|
684 | |
---|
685 | .ctu_tst_macrotest_buf1 (ctu_tst_macrotest_buf1), |
---|
686 | .ctu_tst_pre_grst_l_buf1 (ctu_tst_pre_grst_l_buf1), |
---|
687 | .ctu_tst_scan_disable_buf1 (ctu_tst_scan_disable_buf1), |
---|
688 | .ctu_tst_scanmode_buf1 (ctu_tst_scanmode_buf1), |
---|
689 | .ctu_tst_short_chain_buf1 (ctu_tst_short_chain_buf1), |
---|
690 | .global_shift_enable_buf1 (global_shift_enable_buf1), |
---|
691 | |
---|
692 | .grst_l_buf1 (grst_l_buf1), |
---|
693 | .cluster_cken_buf1 (cluster_cken_buf1), |
---|
694 | |
---|
695 | .se_add_exp_buf2 (se_add_exp_buf2), |
---|
696 | .se_add_frac_buf2 (se_add_frac_buf2), |
---|
697 | .se_out_buf2 (se_out_buf2), |
---|
698 | .se_mul64_buf2 (se_mul64_buf2), |
---|
699 | .se_cluster_header_buf2 (se_cluster_header_buf2), |
---|
700 | .se_in_buf3 (se_in_buf3), |
---|
701 | .se_mul_buf4 (se_mul_buf4), |
---|
702 | .se_div_buf5 (se_div_buf5), |
---|
703 | |
---|
704 | .arst_l_div_buf2 (arst_l_div_buf2), |
---|
705 | .arst_l_mul_buf2 (arst_l_mul_buf2), |
---|
706 | .arst_l_cluster_header_buf2 (arst_l_cluster_header_buf2), |
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707 | .arst_l_in_buf3 (arst_l_in_buf3), |
---|
708 | .arst_l_out_buf3 (arst_l_out_buf3), |
---|
709 | .arst_l_add_buf4 (arst_l_add_buf4), |
---|
710 | |
---|
711 | .fpu_grst_l_mul_buf1 (fpu_grst_l_mul_buf1), |
---|
712 | .fpu_grst_l_in_buf2 (fpu_grst_l_in_buf2), |
---|
713 | .fpu_grst_l_add_buf3 (fpu_grst_l_add_buf3), |
---|
714 | |
---|
715 | .fmul_clken_l_buf1 (fmul_clken_l_buf1), |
---|
716 | .fdiv_clken_l_div_exp_buf1 (fdiv_clken_l_div_exp_buf1), |
---|
717 | .fdiv_clken_l_div_frac_buf1 (fdiv_clken_l_div_frac_buf1), |
---|
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), |
---|
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 | ); |
---|
733 | |
---|
734 | |
---|
735 | endmodule |
---|
736 | |
---|
737 | // Local Variables: |
---|
738 | // verilog-library-directories:("." "../../../srams/rtl") |
---|
739 | // End: |
---|
740 | |
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