1 | // ========== Copyright Header Begin ========================================== |
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2 | // |
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3 | // OpenSPARC T1 Processor File: sparc_exu_ecl.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 | // Module Name: sparc_exu_ecl |
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24 | // Description: Implements all the control logic for the exu. |
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25 | // This includes: bypass logic, ccr control and ccr bypassing, |
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26 | // w2 arbitration logic, mux selects for alu and shift. |
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27 | // Also implements the ccrs. |
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28 | */ |
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29 | |
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30 | module sparc_exu_ecl |
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31 | (/*AUTOARG*/ |
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32 | // Outputs |
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33 | exu_tlu_ccr3_w, exu_tlu_ccr2_w, exu_tlu_ccr1_w, exu_tlu_ccr0_w, |
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34 | exu_mul_input_vld, exu_ifu_longop_done_g, exu_ifu_inj_ack, |
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35 | exu_ifu_err_synd_7_m, exu_ifu_err_reg_m, exu_ifu_ecc_ue_m, |
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36 | exu_ifu_ecc_ce_m, exu_ffu_wsr_inst_e, ecl_rml_wstate_wen_w, |
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37 | ecl_rml_otherwin_wen_w, ecl_rml_cwp_wen_e, ecl_rml_cleanwin_wen_w, |
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38 | ecl_rml_cansave_wen_w, ecl_rml_canrestore_wen_w, |
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39 | ecl_ecc_sel_rs3_m_l, ecl_ecc_sel_rs2_m_l, ecl_ecc_sel_rs1_m_l, |
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40 | ecl_ecc_log_rs3_m, ecl_ecc_log_rs2_m, ecl_ecc_log_rs1_m, |
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41 | ecl_div_yreg_wen_w, ecl_div_yreg_wen_l, ecl_div_yreg_wen_g, |
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42 | ecl_div_yreg_shift_g, ecl_div_xinmask, ecl_div_upper33_zero, |
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43 | ecl_div_upper33_one, ecl_div_upper32_zero, ecl_div_subtract_l, |
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44 | ecl_div_sel_u32, ecl_div_sel_pos32, ecl_div_sel_neg32, |
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45 | ecl_div_sel_adder, ecl_div_sel_64b, ecl_div_newq, |
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46 | ecl_div_mul_sext_rs2_e, ecl_div_mul_sext_rs1_e, |
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47 | ecl_div_mul_keep_data, ecl_div_mul_get_new_data, |
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48 | ecl_div_mul_get_32bit_data, ecl_div_last_cycle, ecl_div_keepx, |
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49 | ecl_div_keep_d, ecl_div_dividend_sign, ecl_div_cin, |
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50 | ecl_div_almostlast_cycle, ecl_byp_sel_restore_m, |
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51 | ecl_byp_sel_restore_g, ecl_byp_sel_pipe_m, ecl_byp_sel_muldiv_g, |
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52 | ecl_byp_sel_load_m, ecl_byp_sel_load_g, ecl_byp_eclpr_e, |
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53 | ecl_byp_ecc_mask_m_l, so, ecl_byp_sel_alu_e, ecl_byp_sel_eclpr_e, |
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54 | ecl_byp_sel_yreg_e, ecl_byp_sel_ifusr_e, ecl_byp_sel_ffusr_m, |
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55 | ecl_byp_sel_ifex_m, ecl_byp_sel_tlusr_m, exu_ifu_va_oor_m, |
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56 | ecl_alu_out_sel_sum_e_l, ecl_alu_out_sel_rs3_e_l, |
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57 | ecl_alu_out_sel_shift_e_l, ecl_alu_out_sel_logic_e_l, |
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58 | ecl_alu_log_sel_and_e, ecl_alu_log_sel_or_e, |
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59 | ecl_alu_log_sel_xor_e, ecl_alu_log_sel_move_e, |
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60 | ecl_alu_sethi_inst_e, ecl_alu_cin_e, ecl_shft_lshift_e_l, |
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61 | ecl_shft_op32_e, ecl_shft_shift4_e, ecl_shft_shift1_e, |
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62 | ecl_shft_enshift_e_l, ecl_byp_restore_m, ecl_byp_rs1_mux2_sel_e, |
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63 | ecl_byp_rs1_mux2_sel_rf, ecl_byp_rs1_mux2_sel_ld, |
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64 | ecl_byp_rs1_mux2_sel_usemux1, ecl_byp_rs1_mux1_sel_m, |
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65 | ecl_byp_rs1_mux1_sel_w, ecl_byp_rs1_mux1_sel_w2, |
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66 | ecl_byp_rs1_mux1_sel_other, ecl_byp_rcc_mux2_sel_e, |
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67 | ecl_byp_rcc_mux2_sel_rf, ecl_byp_rcc_mux2_sel_ld, |
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68 | ecl_byp_rcc_mux2_sel_usemux1, ecl_byp_rcc_mux1_sel_m, |
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69 | ecl_byp_rcc_mux1_sel_w, ecl_byp_rcc_mux1_sel_w2, |
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70 | ecl_byp_rcc_mux1_sel_other, ecl_byp_rs2_mux2_sel_e, |
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71 | ecl_byp_rs2_mux2_sel_rf, ecl_byp_rs2_mux2_sel_ld, |
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72 | ecl_byp_rs2_mux2_sel_usemux1, ecl_byp_rs2_mux1_sel_m, |
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73 | ecl_byp_rs2_mux1_sel_w, ecl_byp_rs2_mux1_sel_w2, |
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74 | ecl_byp_rs2_mux1_sel_other, ecl_byp_rs3_mux2_sel_e, |
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75 | ecl_byp_rs3_mux2_sel_rf, ecl_byp_rs3_mux2_sel_ld, |
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76 | ecl_byp_rs3_mux2_sel_usemux1, ecl_byp_rs3_mux1_sel_m, |
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77 | ecl_byp_rs3_mux1_sel_w, ecl_byp_rs3_mux1_sel_w2, |
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78 | ecl_byp_rs3_mux1_sel_other, ecl_byp_rs3h_mux2_sel_e, |
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79 | ecl_byp_rs3h_mux2_sel_rf, ecl_byp_rs3h_mux2_sel_ld, |
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80 | ecl_byp_rs3h_mux2_sel_usemux1, ecl_byp_rs3h_mux1_sel_m, |
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81 | ecl_byp_rs3h_mux1_sel_w, ecl_byp_rs3h_mux1_sel_w2, |
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82 | ecl_byp_rs3h_mux1_sel_other, ecl_byp_rs1_longmux_sel_g2, |
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83 | ecl_byp_rs1_longmux_sel_w2, ecl_byp_rs1_longmux_sel_ldxa, |
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84 | ecl_byp_rs2_longmux_sel_g2, ecl_byp_rs2_longmux_sel_w2, |
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85 | ecl_byp_rs2_longmux_sel_ldxa, ecl_byp_rs3_longmux_sel_g2, |
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86 | ecl_byp_rs3_longmux_sel_w2, ecl_byp_rs3_longmux_sel_ldxa, |
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87 | ecl_byp_rs3h_longmux_sel_g2, ecl_byp_rs3h_longmux_sel_w2, |
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88 | ecl_byp_rs3h_longmux_sel_ldxa, ecl_byp_std_e_l, ecl_byp_ldxa_g, |
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89 | ecl_byp_3lsb_m, ecl_ecc_rs1_use_rf_e, ecl_ecc_rs2_use_rf_e, |
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90 | ecl_ecc_rs3_use_rf_e, ecl_irf_rd_m, ecl_irf_tid_m, ecl_irf_wen_w, |
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91 | ecl_irf_wen_w2, ecl_irf_rd_g, ecl_irf_tid_g, ecl_div_thr_e, |
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92 | ecl_rml_thr_m, ecl_rml_thr_w, ecl_rml_xor_data_e, |
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93 | ecl_div_ld_inputs, ecl_div_sel_div, ecl_div_div64, exu_ifu_cc_d, |
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94 | ecl_shft_extendbit_e, ecl_shft_extend32bit_e_l, |
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95 | ecl_div_zero_rs2_e, ecl_div_muls_rs1_31_e_l, |
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96 | ecl_div_yreg_data_31_g, exu_tlu_va_oor_m, exu_tlu_va_oor_jl_ret_m, |
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97 | ecl_rml_kill_e, ecl_rml_kill_w, ecl_byp_sel_ecc_m, |
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98 | exu_tlu_ttype_m, exu_tlu_ttype_vld_m, exu_tlu_ue_trap_m, |
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99 | exu_tlu_misalign_addr_jmpl_rtn_m, exu_lsu_priority_trap_m, |
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100 | ecl_div_mul_wen, ecl_div_muls, ecl_rml_early_flush_w, |
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101 | ecl_rml_inst_vld_w, ecl_alu_casa_e, |
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102 | // Inputs |
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103 | tlu_exu_cwpccr_update_m, tlu_exu_ccr_m, sehold, rst_tri_en, |
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104 | rml_ecl_wstate_d, rml_ecl_swap_done, rml_ecl_rmlop_done_e, |
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105 | rml_ecl_otherwin_d, rml_ecl_kill_m, rml_ecl_gl_e, rml_ecl_cwp_d, |
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106 | rml_ecl_cleanwin_d, rml_ecl_cansave_d, rml_ecl_canrestore_d, |
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107 | mul_exu_ack, lsu_exu_ldst_miss_g2, ifu_tlu_wsr_inst_d, |
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108 | ifu_tlu_sraddr_d, ifu_exu_return_d, ifu_exu_muldivop_d, |
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109 | ifu_exu_inst_vld_w, ifu_exu_inst_vld_e, ifu_exu_inj_irferr, |
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110 | ifu_exu_ecc_mask, ifu_exu_disable_ce_e, ecc_ecl_rs3_ue, |
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111 | ecc_ecl_rs3_ce, ecc_ecl_rs2_ue, ecc_ecl_rs2_ce, ecc_ecl_rs1_ue, |
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112 | ecc_ecl_rs1_ce, div_ecl_xin_msb_l, div_ecl_x_msb, |
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113 | div_ecl_upper32_equal, div_ecl_low32_nonzero, |
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114 | div_ecl_gencc_in_msb_l, div_ecl_gencc_in_31, div_ecl_dividend_msb, |
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115 | div_ecl_detect_zero_low, div_ecl_detect_zero_high, div_ecl_d_msb, |
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116 | div_ecl_d_62, div_ecl_cout64, div_ecl_cout32, |
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117 | div_ecl_adder_out_31, byp_ecl_wrccr_data_w, rclk, se, si, grst_l, |
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118 | arst_l, ifu_exu_dbrinst_d, ifu_exu_aluop_d, ifu_exu_shiftop_d, |
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119 | ifu_exu_invert_d, ifu_exu_usecin_d, ifu_exu_enshift_d, |
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120 | byp_ecl_rs2_3_0_e, byp_ecl_rs1_2_0_e, byp_ecl_rd_data_3lsb_m, |
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121 | ifu_exu_use_rsr_e_l, ifu_exu_rd_exusr_e, ifu_exu_rd_ifusr_e, |
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122 | ifu_exu_rd_ffusr_e, ifu_exu_rs1_vld_d, ifu_exu_rs2_vld_d, |
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123 | ifu_exu_rs3e_vld_d, ifu_exu_rs3o_vld_d, ifu_exu_dontmv_regz0_e, |
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124 | ifu_exu_dontmv_regz1_e, ifu_exu_rd_d, ifu_exu_tid_s2, |
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125 | ifu_exu_kill_e, ifu_exu_wen_d, ifu_exu_ialign_d, exu_ifu_regz_e, |
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126 | alu_ecl_add_n64_e, alu_ecl_add_n32_e, alu_ecl_log_n64_e, |
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127 | alu_ecl_log_n32_e, alu_ecl_zhigh_e, alu_ecl_zlow_e, |
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128 | ifu_exu_setcc_d, lsu_exu_dfill_vld_g, lsu_exu_rd_m, lsu_exu_thr_m, |
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129 | lsu_exu_ldxa_m, byp_ecl_rs1_31_e, byp_ecl_rs2_31_e, |
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130 | byp_ecl_rs1_63_e, alu_ecl_cout64_e_l, alu_ecl_cout32_e, |
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131 | alu_ecl_adder_out_63_e, alu_ecl_adder_out_31_e, |
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132 | alu_ecl_adderin2_63_e, alu_ecl_adderin2_31_e, ifu_exu_rs1_s, |
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133 | ifu_exu_rs2_s, ifu_exu_rs3_s, ifu_exu_tagop_d, ifu_exu_tv_d, |
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134 | ifu_exu_muls_d, div_ecl_yreg_0_l, alu_ecl_mem_addr_invalid_e_l, |
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135 | ifu_exu_range_check_jlret_d, ifu_exu_range_check_other_d, |
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136 | ifu_exu_addr_mask_d, ifu_exu_save_d, ifu_exu_restore_d, |
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137 | ifu_exu_casa_d, rml_ecl_clean_window_e, rml_ecl_fill_e, |
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138 | rml_ecl_other_e, rml_ecl_wtype_e, ifu_exu_tcc_e, |
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139 | alu_ecl_adder_out_7_0_e, ifu_exu_useimm_d, ifu_exu_nceen_e, |
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140 | ifu_tlu_flush_m, ifu_exu_ttype_vld_m, tlu_exu_priv_trap_m, |
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141 | tlu_exu_pic_onebelow_m, tlu_exu_pic_twobelow_m, |
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142 | lsu_exu_flush_pipe_w, ifu_exu_sethi_inst_d, |
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143 | lsu_exu_st_dtlb_perr_g |
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144 | ); |
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145 | |
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146 | /*AUTOINPUT*/ |
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147 | // Beginning of automatic inputs (from unused autoinst inputs) |
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148 | input [7:0] byp_ecl_wrccr_data_w; // To ccr of sparc_exu_eclccr.v |
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149 | input div_ecl_adder_out_31; // To divcntl of sparc_exu_ecl_divcntl.v |
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150 | input div_ecl_cout32; // To divcntl of sparc_exu_ecl_divcntl.v |
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151 | input div_ecl_cout64; // To divcntl of sparc_exu_ecl_divcntl.v |
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152 | input div_ecl_d_62; // To divcntl of sparc_exu_ecl_divcntl.v |
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153 | input div_ecl_d_msb; // To divcntl of sparc_exu_ecl_divcntl.v |
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154 | input div_ecl_detect_zero_high;// To divcntl of sparc_exu_ecl_divcntl.v, ... |
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155 | input div_ecl_detect_zero_low;// To divcntl of sparc_exu_ecl_divcntl.v, ... |
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156 | input div_ecl_dividend_msb; // To divcntl of sparc_exu_ecl_divcntl.v |
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157 | input div_ecl_gencc_in_31; // To divcntl of sparc_exu_ecl_divcntl.v |
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158 | input div_ecl_gencc_in_msb_l; // To divcntl of sparc_exu_ecl_divcntl.v |
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159 | input div_ecl_low32_nonzero; // To divcntl of sparc_exu_ecl_divcntl.v |
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160 | input div_ecl_upper32_equal; // To divcntl of sparc_exu_ecl_divcntl.v |
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161 | input div_ecl_x_msb; // To divcntl of sparc_exu_ecl_divcntl.v |
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162 | input div_ecl_xin_msb_l; // To divcntl of sparc_exu_ecl_divcntl.v |
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163 | input ecc_ecl_rs1_ce; // To eccctl of sparc_exu_ecl_eccctl.v |
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164 | input ecc_ecl_rs1_ue; // To eccctl of sparc_exu_ecl_eccctl.v |
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165 | input ecc_ecl_rs2_ce; // To eccctl of sparc_exu_ecl_eccctl.v |
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166 | input ecc_ecl_rs2_ue; // To eccctl of sparc_exu_ecl_eccctl.v |
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167 | input ecc_ecl_rs3_ce; // To eccctl of sparc_exu_ecl_eccctl.v |
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168 | input ecc_ecl_rs3_ue; // To eccctl of sparc_exu_ecl_eccctl.v |
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169 | input ifu_exu_disable_ce_e; // To eccctl of sparc_exu_ecl_eccctl.v |
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170 | input [7:0] ifu_exu_ecc_mask; // To eccctl of sparc_exu_ecl_eccctl.v |
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171 | input ifu_exu_inj_irferr; // To eccctl of sparc_exu_ecl_eccctl.v |
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172 | input ifu_exu_inst_vld_e; // To writeback of sparc_exu_ecl_wb.v, ... |
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173 | input ifu_exu_inst_vld_w; // To ccr of sparc_exu_eclccr.v, ... |
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174 | input [4:0] ifu_exu_muldivop_d; // To mdqctl of sparc_exu_ecl_mdqctl.v |
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175 | input ifu_exu_return_d; // To writeback of sparc_exu_ecl_wb.v |
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176 | input [6:0] ifu_tlu_sraddr_d; // To writeback of sparc_exu_ecl_wb.v |
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177 | input ifu_tlu_wsr_inst_d; // To writeback of sparc_exu_ecl_wb.v |
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178 | input lsu_exu_ldst_miss_g2; // To writeback of sparc_exu_ecl_wb.v |
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179 | input mul_exu_ack; // To mdqctl of sparc_exu_ecl_mdqctl.v |
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180 | input [2:0] rml_ecl_canrestore_d; // To writeback of sparc_exu_ecl_wb.v |
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181 | input [2:0] rml_ecl_cansave_d; // To writeback of sparc_exu_ecl_wb.v |
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182 | input [2:0] rml_ecl_cleanwin_d; // To writeback of sparc_exu_ecl_wb.v |
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183 | input [2:0] rml_ecl_cwp_d; // To writeback of sparc_exu_ecl_wb.v, ... |
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184 | input [1:0] rml_ecl_gl_e; // To eccctl of sparc_exu_ecl_eccctl.v |
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185 | input rml_ecl_kill_m; // To writeback of sparc_exu_ecl_wb.v |
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186 | input [2:0] rml_ecl_otherwin_d; // To writeback of sparc_exu_ecl_wb.v |
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187 | input rml_ecl_rmlop_done_e; // To writeback of sparc_exu_ecl_wb.v |
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188 | input [3:0] rml_ecl_swap_done; // To writeback of sparc_exu_ecl_wb.v |
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189 | input [5:0] rml_ecl_wstate_d; // To writeback of sparc_exu_ecl_wb.v |
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190 | input rst_tri_en; // To eccctl of sparc_exu_ecl_eccctl.v |
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191 | input sehold; // To writeback of sparc_exu_ecl_wb.v, ... |
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192 | input [7:0] tlu_exu_ccr_m; // To ccr of sparc_exu_eclccr.v |
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193 | input tlu_exu_cwpccr_update_m;// To ccr of sparc_exu_eclccr.v |
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194 | // End of automatics |
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195 | input rclk; |
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196 | input se; |
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197 | input si; |
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198 | input grst_l; |
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199 | input arst_l; |
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200 | input ifu_exu_dbrinst_d;// rs1 bypass should use pc |
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201 | input [2:0] ifu_exu_aluop_d;// partially decoded op for exu operation |
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202 | input [2:0] ifu_exu_shiftop_d; |
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203 | input ifu_exu_invert_d; // invert logic output |
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204 | input ifu_exu_usecin_d; // use cin for add ops |
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205 | input ifu_exu_enshift_d; // enable shifter |
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206 | input [3:0] byp_ecl_rs2_3_0_e; |
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207 | input [2:0] byp_ecl_rs1_2_0_e; |
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208 | input [2:0] byp_ecl_rd_data_3lsb_m; |
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209 | input ifu_exu_use_rsr_e_l; // e stage instruction uses sr |
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210 | input ifu_exu_rd_exusr_e; |
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211 | input ifu_exu_rd_ifusr_e; |
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212 | input ifu_exu_rd_ffusr_e; |
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213 | input ifu_exu_rs1_vld_d; |
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214 | input ifu_exu_rs2_vld_d; |
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215 | input ifu_exu_rs3e_vld_d; |
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216 | input ifu_exu_rs3o_vld_d; |
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217 | input ifu_exu_dontmv_regz0_e;// a move instruction got killed |
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218 | input ifu_exu_dontmv_regz1_e; |
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219 | input [4:0] ifu_exu_rd_d; // destination register |
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220 | input [1:0] ifu_exu_tid_s2; // thread of inst in s stage |
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221 | input ifu_exu_kill_e; // kill instruction in e-stage |
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222 | input ifu_exu_wen_d; // instruction in d-stage writes to regfile |
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223 | input ifu_exu_ialign_d;// instruction is alignaddress |
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224 | input exu_ifu_regz_e; |
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225 | input alu_ecl_add_n64_e; |
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226 | input alu_ecl_add_n32_e; |
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227 | input alu_ecl_log_n64_e; |
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228 | input alu_ecl_log_n32_e; |
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229 | input alu_ecl_zhigh_e; |
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230 | input alu_ecl_zlow_e; |
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231 | input ifu_exu_setcc_d; |
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232 | input lsu_exu_dfill_vld_g; // load data is valid |
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233 | input [4:0] lsu_exu_rd_m; // load destination register |
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234 | input [1:0] lsu_exu_thr_m; // load thread |
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235 | input lsu_exu_ldxa_m; |
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236 | input byp_ecl_rs1_31_e; |
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237 | input byp_ecl_rs2_31_e; |
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238 | input byp_ecl_rs1_63_e; |
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239 | input alu_ecl_cout64_e_l; |
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240 | input alu_ecl_cout32_e; |
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241 | input alu_ecl_adder_out_63_e; |
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242 | input alu_ecl_adder_out_31_e; |
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243 | input alu_ecl_adderin2_63_e; |
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244 | input alu_ecl_adderin2_31_e; |
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245 | input [4:0] ifu_exu_rs1_s; // source addresses |
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246 | input [4:0] ifu_exu_rs2_s; |
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247 | input [4:0] ifu_exu_rs3_s; |
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248 | input ifu_exu_tagop_d;// add or sub sets icc.v with tagged overflow |
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249 | input ifu_exu_tv_d; // 32 bit overflow causes exception |
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250 | input ifu_exu_muls_d; |
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251 | input [3:0] div_ecl_yreg_0_l; |
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252 | input alu_ecl_mem_addr_invalid_e_l; |
---|
253 | input ifu_exu_range_check_jlret_d; |
---|
254 | input ifu_exu_range_check_other_d; |
---|
255 | input ifu_exu_addr_mask_d; |
---|
256 | input ifu_exu_save_d; |
---|
257 | input ifu_exu_restore_d; |
---|
258 | input ifu_exu_casa_d; |
---|
259 | input rml_ecl_clean_window_e; |
---|
260 | input rml_ecl_fill_e; |
---|
261 | input rml_ecl_other_e; |
---|
262 | input [2:0] rml_ecl_wtype_e; |
---|
263 | input ifu_exu_tcc_e; |
---|
264 | input [7:0] alu_ecl_adder_out_7_0_e; |
---|
265 | input ifu_exu_useimm_d; |
---|
266 | input ifu_exu_nceen_e; |
---|
267 | input ifu_tlu_flush_m; |
---|
268 | input ifu_exu_ttype_vld_m; |
---|
269 | input tlu_exu_priv_trap_m; |
---|
270 | input tlu_exu_pic_onebelow_m; |
---|
271 | input tlu_exu_pic_twobelow_m; |
---|
272 | input lsu_exu_flush_pipe_w; |
---|
273 | input ifu_exu_sethi_inst_d; |
---|
274 | input lsu_exu_st_dtlb_perr_g; |
---|
275 | |
---|
276 | /*AUTOOUTPUT*/ |
---|
277 | // Beginning of automatic outputs (from unused autoinst outputs) |
---|
278 | output [7:0] ecl_byp_ecc_mask_m_l; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
279 | output [7:0] ecl_byp_eclpr_e; // From writeback of sparc_exu_ecl_wb.v |
---|
280 | output ecl_byp_sel_load_g; // From writeback of sparc_exu_ecl_wb.v |
---|
281 | output ecl_byp_sel_load_m; // From writeback of sparc_exu_ecl_wb.v |
---|
282 | output ecl_byp_sel_muldiv_g; // From writeback of sparc_exu_ecl_wb.v |
---|
283 | output ecl_byp_sel_pipe_m; // From writeback of sparc_exu_ecl_wb.v |
---|
284 | output ecl_byp_sel_restore_g; // From writeback of sparc_exu_ecl_wb.v |
---|
285 | output ecl_byp_sel_restore_m; // From writeback of sparc_exu_ecl_wb.v |
---|
286 | output ecl_div_almostlast_cycle;// From divcntl of sparc_exu_ecl_divcntl.v |
---|
287 | output ecl_div_cin; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
288 | output ecl_div_dividend_sign; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
289 | output ecl_div_keep_d; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
290 | output ecl_div_keepx; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
291 | output ecl_div_last_cycle; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
292 | output ecl_div_mul_get_32bit_data;// From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
293 | output ecl_div_mul_get_new_data;// From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
294 | output ecl_div_mul_keep_data; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
295 | output ecl_div_mul_sext_rs1_e; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
296 | output ecl_div_mul_sext_rs2_e; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
297 | output ecl_div_newq; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
298 | output ecl_div_sel_64b; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
299 | output ecl_div_sel_adder; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
300 | output ecl_div_sel_neg32; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
301 | output ecl_div_sel_pos32; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
302 | output ecl_div_sel_u32; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
303 | output ecl_div_subtract_l; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
304 | output ecl_div_upper32_zero; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
305 | output ecl_div_upper33_one; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
306 | output ecl_div_upper33_zero; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
307 | output ecl_div_xinmask; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
308 | output [3:0] ecl_div_yreg_shift_g; // From writeback of sparc_exu_ecl_wb.v |
---|
309 | output [3:0] ecl_div_yreg_wen_g; // From writeback of sparc_exu_ecl_wb.v |
---|
310 | output [3:0] ecl_div_yreg_wen_l; // From writeback of sparc_exu_ecl_wb.v |
---|
311 | output [3:0] ecl_div_yreg_wen_w; // From writeback of sparc_exu_ecl_wb.v |
---|
312 | output ecl_ecc_log_rs1_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
313 | output ecl_ecc_log_rs2_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
314 | output ecl_ecc_log_rs3_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
315 | output ecl_ecc_sel_rs1_m_l; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
316 | output ecl_ecc_sel_rs2_m_l; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
317 | output ecl_ecc_sel_rs3_m_l; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
318 | output ecl_rml_canrestore_wen_w;// From writeback of sparc_exu_ecl_wb.v |
---|
319 | output ecl_rml_cansave_wen_w; // From writeback of sparc_exu_ecl_wb.v |
---|
320 | output ecl_rml_cleanwin_wen_w; // From writeback of sparc_exu_ecl_wb.v |
---|
321 | output ecl_rml_cwp_wen_e; // From writeback of sparc_exu_ecl_wb.v |
---|
322 | output ecl_rml_otherwin_wen_w; // From writeback of sparc_exu_ecl_wb.v |
---|
323 | output ecl_rml_wstate_wen_w; // From writeback of sparc_exu_ecl_wb.v |
---|
324 | output exu_ffu_wsr_inst_e; // From writeback of sparc_exu_ecl_wb.v |
---|
325 | output exu_ifu_ecc_ce_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
326 | output exu_ifu_ecc_ue_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
327 | output [7:0] exu_ifu_err_reg_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
328 | output exu_ifu_err_synd_7_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
329 | output exu_ifu_inj_ack; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
330 | output [3:0] exu_ifu_longop_done_g; // From writeback of sparc_exu_ecl_wb.v |
---|
331 | output exu_mul_input_vld; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
332 | output [7:0] exu_tlu_ccr0_w; // From ccr of sparc_exu_eclccr.v |
---|
333 | output [7:0] exu_tlu_ccr1_w; // From ccr of sparc_exu_eclccr.v |
---|
334 | output [7:0] exu_tlu_ccr2_w; // From ccr of sparc_exu_eclccr.v |
---|
335 | output [7:0] exu_tlu_ccr3_w; // From ccr of sparc_exu_eclccr.v |
---|
336 | // End of automatics |
---|
337 | output so; |
---|
338 | output ecl_byp_sel_alu_e; |
---|
339 | output ecl_byp_sel_eclpr_e; |
---|
340 | output ecl_byp_sel_yreg_e; |
---|
341 | output ecl_byp_sel_ifusr_e; |
---|
342 | output ecl_byp_sel_ffusr_m; |
---|
343 | output ecl_byp_sel_ifex_m; |
---|
344 | output ecl_byp_sel_tlusr_m; |
---|
345 | output exu_ifu_va_oor_m; |
---|
346 | output ecl_alu_out_sel_sum_e_l; |
---|
347 | output ecl_alu_out_sel_rs3_e_l; |
---|
348 | output ecl_alu_out_sel_shift_e_l; |
---|
349 | output ecl_alu_out_sel_logic_e_l; |
---|
350 | output ecl_alu_log_sel_and_e; |
---|
351 | output ecl_alu_log_sel_or_e; |
---|
352 | output ecl_alu_log_sel_xor_e; |
---|
353 | output ecl_alu_log_sel_move_e; |
---|
354 | output ecl_alu_sethi_inst_e; |
---|
355 | output ecl_alu_cin_e; // cin for add/sub operations |
---|
356 | output ecl_shft_lshift_e_l; // if 0 do left shift. else right shift |
---|
357 | output ecl_shft_op32_e; // indicates 32 bit operation so upper 32 = 0 |
---|
358 | //output [3:0] ecl_shft_shift16_e;// [48, 32, 16, 0] shift |
---|
359 | output [3:0] ecl_shft_shift4_e;// [12, 8, 4, 0] shift |
---|
360 | output [3:0] ecl_shft_shift1_e;// [3, 2, 1, 0] shift |
---|
361 | output ecl_shft_enshift_e_l;// enables inputs to shifter |
---|
362 | output ecl_byp_restore_m; |
---|
363 | output ecl_byp_rs1_mux2_sel_e;// select lines for bypass muxes for rs1 |
---|
364 | output ecl_byp_rs1_mux2_sel_rf; |
---|
365 | output ecl_byp_rs1_mux2_sel_ld; |
---|
366 | output ecl_byp_rs1_mux2_sel_usemux1; |
---|
367 | output ecl_byp_rs1_mux1_sel_m; |
---|
368 | output ecl_byp_rs1_mux1_sel_w; |
---|
369 | output ecl_byp_rs1_mux1_sel_w2; |
---|
370 | output ecl_byp_rs1_mux1_sel_other; |
---|
371 | output ecl_byp_rcc_mux2_sel_e;// select lines for bypass muxes for rcc |
---|
372 | output ecl_byp_rcc_mux2_sel_rf; |
---|
373 | output ecl_byp_rcc_mux2_sel_ld; |
---|
374 | output ecl_byp_rcc_mux2_sel_usemux1; |
---|
375 | output ecl_byp_rcc_mux1_sel_m; |
---|
376 | output ecl_byp_rcc_mux1_sel_w; |
---|
377 | output ecl_byp_rcc_mux1_sel_w2; |
---|
378 | output ecl_byp_rcc_mux1_sel_other; |
---|
379 | output ecl_byp_rs2_mux2_sel_e;// select lines for bypass muxes for rs2 |
---|
380 | output ecl_byp_rs2_mux2_sel_rf; |
---|
381 | output ecl_byp_rs2_mux2_sel_ld; |
---|
382 | output ecl_byp_rs2_mux2_sel_usemux1; |
---|
383 | output ecl_byp_rs2_mux1_sel_m; |
---|
384 | output ecl_byp_rs2_mux1_sel_w; |
---|
385 | output ecl_byp_rs2_mux1_sel_w2; |
---|
386 | output ecl_byp_rs2_mux1_sel_other; |
---|
387 | output ecl_byp_rs3_mux2_sel_e; // select lines for bypass muxes for rs3 |
---|
388 | output ecl_byp_rs3_mux2_sel_rf; |
---|
389 | output ecl_byp_rs3_mux2_sel_ld; |
---|
390 | output ecl_byp_rs3_mux2_sel_usemux1; |
---|
391 | output ecl_byp_rs3_mux1_sel_m; |
---|
392 | output ecl_byp_rs3_mux1_sel_w; |
---|
393 | output ecl_byp_rs3_mux1_sel_w2; |
---|
394 | output ecl_byp_rs3_mux1_sel_other; |
---|
395 | output ecl_byp_rs3h_mux2_sel_e; // select lines for bypass muxes for rs3 double |
---|
396 | output ecl_byp_rs3h_mux2_sel_rf; |
---|
397 | output ecl_byp_rs3h_mux2_sel_ld; |
---|
398 | output ecl_byp_rs3h_mux2_sel_usemux1; |
---|
399 | output ecl_byp_rs3h_mux1_sel_m; |
---|
400 | output ecl_byp_rs3h_mux1_sel_w; |
---|
401 | output ecl_byp_rs3h_mux1_sel_w2; |
---|
402 | output ecl_byp_rs3h_mux1_sel_other; |
---|
403 | output ecl_byp_rs1_longmux_sel_g2; |
---|
404 | output ecl_byp_rs1_longmux_sel_w2; |
---|
405 | output ecl_byp_rs1_longmux_sel_ldxa; |
---|
406 | output ecl_byp_rs2_longmux_sel_g2; |
---|
407 | output ecl_byp_rs2_longmux_sel_w2; |
---|
408 | output ecl_byp_rs2_longmux_sel_ldxa; |
---|
409 | output ecl_byp_rs3_longmux_sel_g2; |
---|
410 | output ecl_byp_rs3_longmux_sel_w2; |
---|
411 | output ecl_byp_rs3_longmux_sel_ldxa; |
---|
412 | output ecl_byp_rs3h_longmux_sel_g2; |
---|
413 | output ecl_byp_rs3h_longmux_sel_w2; |
---|
414 | output ecl_byp_rs3h_longmux_sel_ldxa; |
---|
415 | output ecl_byp_std_e_l; |
---|
416 | output ecl_byp_ldxa_g; // use the ldxa return data |
---|
417 | output [2:0] ecl_byp_3lsb_m; |
---|
418 | output ecl_ecc_rs1_use_rf_e; |
---|
419 | output ecl_ecc_rs2_use_rf_e; |
---|
420 | output ecl_ecc_rs3_use_rf_e; |
---|
421 | output [4:0] ecl_irf_rd_m; |
---|
422 | output [1:0] ecl_irf_tid_m; |
---|
423 | output ecl_irf_wen_w; |
---|
424 | output ecl_irf_wen_w2;// write enable for w2 |
---|
425 | output [4:0] ecl_irf_rd_g; // w2 destination register |
---|
426 | output [1:0] ecl_irf_tid_g; // thread of inst in long w stage |
---|
427 | output [3:0] ecl_div_thr_e; |
---|
428 | output [3:0] ecl_rml_thr_m; |
---|
429 | output [3:0] ecl_rml_thr_w; |
---|
430 | output [2:0] ecl_rml_xor_data_e; |
---|
431 | output ecl_div_ld_inputs; |
---|
432 | output ecl_div_sel_div; |
---|
433 | output ecl_div_div64; |
---|
434 | output [7:0] exu_ifu_cc_d; |
---|
435 | output ecl_shft_extendbit_e; // bit that gets appended on right shifts |
---|
436 | output ecl_shft_extend32bit_e_l; // bit that gets appended on 32 bit right shfts |
---|
437 | output ecl_div_zero_rs2_e;// used on muls ops |
---|
438 | output ecl_div_muls_rs1_31_e_l; |
---|
439 | output ecl_div_yreg_data_31_g; |
---|
440 | output exu_tlu_va_oor_m; |
---|
441 | output exu_tlu_va_oor_jl_ret_m; |
---|
442 | output ecl_rml_kill_e; |
---|
443 | output ecl_rml_kill_w; |
---|
444 | output ecl_byp_sel_ecc_m; |
---|
445 | output [8:0] exu_tlu_ttype_m; |
---|
446 | output exu_tlu_ttype_vld_m; |
---|
447 | output exu_tlu_ue_trap_m; |
---|
448 | output exu_tlu_misalign_addr_jmpl_rtn_m; |
---|
449 | output exu_lsu_priority_trap_m; |
---|
450 | output ecl_div_mul_wen; |
---|
451 | output ecl_div_muls; |
---|
452 | output ecl_rml_early_flush_w; |
---|
453 | output ecl_rml_inst_vld_w; |
---|
454 | output ecl_alu_casa_e; |
---|
455 | |
---|
456 | |
---|
457 | /*AUTOWIRE*/ |
---|
458 | // Beginning of automatic wires (for undeclared instantiated-module outputs) |
---|
459 | wire bypass_m; // From writeback of sparc_exu_ecl_wb.v |
---|
460 | wire bypass_w; // From writeback of sparc_exu_ecl_wb.v |
---|
461 | wire [7:0] divcntl_ccr_cc_w2; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
462 | wire divcntl_wb_req_g; // From divcntl of sparc_exu_ecl_divcntl.v |
---|
463 | wire [4:0] eccctl_wb_rd_m; // From eccctl of sparc_exu_ecl_eccctl.v |
---|
464 | wire ecl_div_signed_div; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
465 | wire mdqctl_divcntl_input_vld;// From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
466 | wire mdqctl_divcntl_muldone; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
467 | wire mdqctl_divcntl_reset_div;// From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
468 | wire [4:0] mdqctl_wb_divrd_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
469 | wire mdqctl_wb_divsetcc_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
470 | wire [1:0] mdqctl_wb_divthr_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
471 | wire [4:0] mdqctl_wb_mulrd_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
472 | wire mdqctl_wb_mulsetcc_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
473 | wire [1:0] mdqctl_wb_multhr_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
474 | wire mdqctl_wb_yreg_shift_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
475 | wire mdqctl_wb_yreg_wen_g; // From mdqctl of sparc_exu_ecl_mdqctl.v |
---|
476 | wire [4:0] wb_byplog_rd_g2; // From writeback of sparc_exu_ecl_wb.v |
---|
477 | wire [4:0] wb_byplog_rd_w2; // From writeback of sparc_exu_ecl_wb.v |
---|
478 | wire [1:0] wb_byplog_tid_w2; // From writeback of sparc_exu_ecl_wb.v |
---|
479 | wire wb_byplog_wen_g2; // From writeback of sparc_exu_ecl_wb.v |
---|
480 | wire wb_byplog_wen_w2; // From writeback of sparc_exu_ecl_wb.v |
---|
481 | wire wb_ccr_setcc_g; // From writeback of sparc_exu_ecl_wb.v |
---|
482 | wire wb_ccr_wrccr_w; // From writeback of sparc_exu_ecl_wb.v |
---|
483 | wire wb_divcntl_ack_g; // From writeback of sparc_exu_ecl_wb.v |
---|
484 | wire wb_e; // From writeback of sparc_exu_ecl_wb.v |
---|
485 | wire wb_eccctl_spec_wen_next;// From writeback of sparc_exu_ecl_wb.v |
---|
486 | // End of automatics |
---|
487 | wire clk; |
---|
488 | wire reset; |
---|
489 | wire ecl_reset_l; |
---|
490 | wire ecl_byp_rs1_mux2_sel_rf;// To eccctl of sparc_exu_ecl_eccctl.v |
---|
491 | wire ecl_byp_rs2_mux2_sel_rf;// To eccctl of sparc_exu_ecl_eccctl.v |
---|
492 | wire ecl_byp_rs3_mux2_sel_rf;// To eccctl of sparc_exu_ecl_eccctl.v |
---|
493 | wire ldxa_g; |
---|
494 | wire ecl_byp_ldxa_g; |
---|
495 | wire rs1_vld_e; |
---|
496 | wire rs2_vld_e; |
---|
497 | wire std_d; |
---|
498 | wire std_e; |
---|
499 | wire rs3_vld_d; |
---|
500 | wire rs3_vld_e; |
---|
501 | wire cancel_rs3_ecc_e; |
---|
502 | wire [4:0] ifu_exu_rs1_d; // source addresses |
---|
503 | wire [4:0] ifu_exu_rs2_d; |
---|
504 | wire [4:0] ifu_exu_rs3_d; |
---|
505 | wire [2:0] ifu_exu_aluop_e; |
---|
506 | wire [2:0] shiftop_d; |
---|
507 | wire [2:0] shiftop_e; |
---|
508 | wire enshift_e; |
---|
509 | wire sel_sum_d; |
---|
510 | wire sel_sum_e; |
---|
511 | wire sub_e; // Do subtraction for add ops |
---|
512 | wire shft_sext_e; // sign extend for R shift. must be 0 for left |
---|
513 | wire is_logic_e; // opcode is for logic op |
---|
514 | wire dont_move_e; |
---|
515 | wire sethi_e; |
---|
516 | wire [4:0] rd_e; |
---|
517 | wire [4:0] rd_m; |
---|
518 | wire [4:0] ecl_irf_rd_w; |
---|
519 | wire [1:0] tid_d; |
---|
520 | wire [3:0] thr_d; |
---|
521 | wire [1:0] tid_e; |
---|
522 | wire [1:0] tid_m; |
---|
523 | wire [1:0] tid_w; |
---|
524 | wire [1:0] tid_w1; |
---|
525 | wire [1:0] ecl_irf_tid_w; |
---|
526 | wire [3:0] thr_m; |
---|
527 | wire [3:0] ecl_rml_thr_w; |
---|
528 | wire ecl_irf_wen_w; |
---|
529 | wire extend64bit; // bit that gets appended on 64 bit right shfts |
---|
530 | wire c_used_d; // actual c_in calculated in d_stage |
---|
531 | wire [1:0] adder_xcc; |
---|
532 | wire [1:0] adder_icc; |
---|
533 | wire cc_e_3; // cc_e for muls |
---|
534 | wire cc_e_1; |
---|
535 | wire [3:0] alu_xcc_e; // 64 bit ccs NZVC |
---|
536 | wire [3:0] alu_icc_e; // 32 bit ccs NZVC |
---|
537 | wire ialign_e; |
---|
538 | wire ialign_m; |
---|
539 | wire ifu_exu_tv_e; |
---|
540 | wire ifu_exu_tagop_e; |
---|
541 | wire tag_overflow; // tag overflow has occured |
---|
542 | wire tag_overflow_trap_e; |
---|
543 | wire ifu_exu_range_check_jlret_e; |
---|
544 | wire ifu_exu_range_check_other_e; |
---|
545 | wire addr_mask_e; |
---|
546 | wire valid_range_check_jlret_e; |
---|
547 | wire ifu_exu_range_check_jlret_m; |
---|
548 | wire ifu_exu_range_check_other_m; |
---|
549 | wire alu_ecl_mem_addr_invalid_m_l; |
---|
550 | wire misalign_addr_e; |
---|
551 | wire muls_rs1_31_m_l; |
---|
552 | wire rs2_data_31_m; |
---|
553 | wire save_e; |
---|
554 | wire restore_e; |
---|
555 | wire [4:0] real_rd_e; |
---|
556 | wire ifu_tlu_flush_w; |
---|
557 | wire flush_w; |
---|
558 | wire flush_w1; |
---|
559 | wire part_early_flush_m; |
---|
560 | wire part_early_flush_w; |
---|
561 | wire pic_trap_m; |
---|
562 | wire inst_vld_w1; |
---|
563 | wire tlu_priv_trap_w; |
---|
564 | wire early_flush_w; |
---|
565 | wire thr_match_ew; |
---|
566 | wire thr_match_mw1; |
---|
567 | wire thr_match_mw; |
---|
568 | wire thr_match_sd; |
---|
569 | wire thr_match_de; |
---|
570 | wire thr_match_se; |
---|
571 | wire thr_match_dm; |
---|
572 | wire ld_thr_match_sm; |
---|
573 | wire ld_thr_match_dg; |
---|
574 | wire ld_thr_match_sg; |
---|
575 | wire ld_thr_match_dg2; |
---|
576 | wire ecl_exu_kill_m; |
---|
577 | wire kill_rml_m; |
---|
578 | wire kill_rml_w; |
---|
579 | wire [3:0] perr_store_next; |
---|
580 | wire [3:0] perr_store; |
---|
581 | wire [3:0] perr_kill; |
---|
582 | wire [4:0] ld_rd_g; |
---|
583 | wire [1:0] ld_tid_g; |
---|
584 | |
---|
585 | wire read_yreg_e; |
---|
586 | wire read_ffusr_e; |
---|
587 | wire read_tlusr_e; |
---|
588 | wire read_ffusr_m; |
---|
589 | wire read_tlusr_m; |
---|
590 | |
---|
591 | // trap logic |
---|
592 | wire ue_trap_m; |
---|
593 | wire [8:0] early1_ttype_e; |
---|
594 | wire [8:0] early2_ttype_e; |
---|
595 | wire [8:0] early_ttype_m; |
---|
596 | wire early_ttype_vld_e; |
---|
597 | wire early_ttype_vld_m; |
---|
598 | wire pick_not_aligned; |
---|
599 | wire pick_tcc; |
---|
600 | wire pick_normal_ttype; |
---|
601 | wire fill_trap_e; |
---|
602 | wire fill_trap_m; |
---|
603 | wire next_yreg_data_31; |
---|
604 | wire muls_e; |
---|
605 | wire zero_rs2_d; |
---|
606 | wire div_e; |
---|
607 | wire div_zero_m; |
---|
608 | |
---|
609 | |
---|
610 | wire [4:0] ifu_exu_rs1_e; |
---|
611 | wire [4:0] ifu_exu_rs1_m; |
---|
612 | wire [4:0] ifu_exu_rs2_e; |
---|
613 | wire [4:0] ifu_exu_rs2_m; |
---|
614 | wire [4:0] ifu_exu_rs3_e; |
---|
615 | wire [4:0] ifu_exu_rs3_m; |
---|
616 | wire [3:0] div_ecl_yreg_0; |
---|
617 | wire div_ecl_yreg_0_d; |
---|
618 | |
---|
619 | assign clk = rclk; |
---|
620 | // Reset flop |
---|
621 | dffrl_async rstff(.din (grst_l), |
---|
622 | .q (ecl_reset_l), |
---|
623 | .clk (clk), |
---|
624 | .rst_l (arst_l), .se(se), .si(), .so()); |
---|
625 | assign reset = ~ecl_reset_l; |
---|
626 | |
---|
627 | // Pipeline flops for irf control signals |
---|
628 | dff_s #(5) dff_rs1_s2d(.din(ifu_exu_rs1_s[4:0]), .clk(clk), .q(ifu_exu_rs1_d[4:0]), .se(se), |
---|
629 | .si(),.so()); |
---|
630 | dff_s #(5) dff_rs2_s2d(.din(ifu_exu_rs2_s[4:0]), .clk(clk), .q(ifu_exu_rs2_d[4:0]), .se(se), |
---|
631 | .si(),.so()); |
---|
632 | dff_s #(5) dff_rs3_s2d(.din(ifu_exu_rs3_s[4:0]), .clk(clk), .q(ifu_exu_rs3_d[4:0]), .se(se), |
---|
633 | .si(),.so()); |
---|
634 | dff_s #(5) dff_rs1_d2e(.din(ifu_exu_rs1_d[4:0]), .clk(clk), .q(ifu_exu_rs1_e[4:0]), .se(se), |
---|
635 | .si(),.so()); |
---|
636 | dff_s #(5) dff_rs2_d2e(.din(ifu_exu_rs2_d[4:0]), .clk(clk), .q(ifu_exu_rs2_e[4:0]), .se(se), |
---|
637 | .si(),.so()); |
---|
638 | dff_s #(5) dff_rs3_d2e(.din(ifu_exu_rs3_d[4:0]), .clk(clk), .q(ifu_exu_rs3_e[4:0]), .se(se), |
---|
639 | .si(),.so()); |
---|
640 | dff_s #(5) dff_rs1_e2m(.din(ifu_exu_rs1_e[4:0]), .clk(clk), .q(ifu_exu_rs1_m[4:0]), .se(se), |
---|
641 | .si(),.so()); |
---|
642 | dff_s #(5) dff_rs2_e2m(.din(ifu_exu_rs2_e[4:0]), .clk(clk), .q(ifu_exu_rs2_m[4:0]), .se(se), |
---|
643 | .si(),.so()); |
---|
644 | dff_s #(5) dff_rs3_e2m(.din(ifu_exu_rs3_e[4:0]), .clk(clk), .q(ifu_exu_rs3_m[4:0]), .se(se), |
---|
645 | .si(),.so()); |
---|
646 | dff_s #(5) dff_ld_rd_m2g(.din(lsu_exu_rd_m[4:0]), .clk(clk), .q(ld_rd_g[4:0]), .se(se), .si(), .so()); |
---|
647 | dff_s #(2) dff_ld_tid_m2g(.din(lsu_exu_thr_m[1:0]), .clk(clk), .q(ld_tid_g[1:0]), .se(se), .si(), .so()); |
---|
648 | |
---|
649 | // Pipeline flops for control signals |
---|
650 | dff_s #(3) dff_aluop_d2e(.din(ifu_exu_aluop_d[2:0]), .clk(clk), .q(ifu_exu_aluop_e[2:0]), |
---|
651 | .se(se), .si(), .so()); |
---|
652 | dff_s #(3) dff_shiftop_d2e(.din(shiftop_d[2:0]), .clk(clk), |
---|
653 | .q(shiftop_e[2:0]), .se(se), |
---|
654 | .si(), .so()); |
---|
655 | dff_s dff_enshift_d2e(.din(ifu_exu_enshift_d), .clk(clk), .q(enshift_e), |
---|
656 | .se(se), .si(), .so()); |
---|
657 | dff_s dff_sel_sum_d2e(.din(sel_sum_d), .clk(clk), .q(sel_sum_e), |
---|
658 | .se(se), .si(), .so()); |
---|
659 | dff_s dff_tv_d2e(.din(ifu_exu_tv_d), .clk(clk), .q(ifu_exu_tv_e), |
---|
660 | .se(se), .si(), .so()); |
---|
661 | dff_s dff_tagop_d2e(.din(ifu_exu_tagop_d), .clk(clk), .q(ifu_exu_tagop_e), |
---|
662 | .se(se), .si(), .so()); |
---|
663 | dff_s dff_ialign_d2e(.din(ifu_exu_ialign_d), .clk(clk), .q(ialign_e), |
---|
664 | .se(se), .si(), .so()); |
---|
665 | dff_s dff_ialign_e2m(.din(ialign_e), .clk(clk), .q(ialign_m), |
---|
666 | .se(se), .si(), .so()); |
---|
667 | dff_s ldxa_dff(.din(lsu_exu_ldxa_m), .clk(clk), .q(ldxa_g), .se(se), .si(), .so()); |
---|
668 | dff_s sethi_d2e(.din(ifu_exu_sethi_inst_d), .clk(clk), .q(sethi_e), .se(se), .si(), .so()); |
---|
669 | dff_s rs1_vld_d2e(.din(ifu_exu_rs1_vld_d), .clk(clk), .q(rs1_vld_e), .se(se), .si(), .so()); |
---|
670 | dff_s rs2_vld_d2e(.din(ifu_exu_rs2_vld_d), .clk(clk), .q(rs2_vld_e), .se(se), .si(), .so()); |
---|
671 | assign rs3_vld_d = ifu_exu_rs3e_vld_d | ifu_exu_rs3o_vld_d; |
---|
672 | dff_s rs3_vld_d2e(.din(rs3_vld_d), .q(rs3_vld_e), .clk(clk), .se(se), .si(), .so()); |
---|
673 | dff_s casa_d2e(.din(ifu_exu_casa_d), .q(ecl_alu_casa_e), .clk(clk), .se(se), .si(), .so()); |
---|
674 | |
---|
675 | /////////////////////////////// |
---|
676 | // ALU Control |
---|
677 | /////////////////////////////// |
---|
678 | // Decode opcode for ALU |
---|
679 | // aluop: [move, log1, log0] |
---|
680 | // ADD = 00, AND = 01, OR = 10, XOR = 11 |
---|
681 | // log_sel: [and, or, xor, pass] |
---|
682 | // out_sel: [sum, logic, shift] |
---|
683 | assign ecl_alu_log_sel_and_e = |
---|
684 | (~ifu_exu_aluop_e[2] & ~ifu_exu_aluop_e[1] & ifu_exu_aluop_e[0]); |
---|
685 | assign ecl_alu_log_sel_or_e = (~ifu_exu_aluop_e[2] & ifu_exu_aluop_e[1] |
---|
686 | & ~ifu_exu_aluop_e[0]); |
---|
687 | assign ecl_alu_log_sel_xor_e = (~ifu_exu_aluop_e[2] & ifu_exu_aluop_e[1] |
---|
688 | & ifu_exu_aluop_e[0]); |
---|
689 | assign ecl_alu_log_sel_move_e = |
---|
690 | (ifu_exu_aluop_e[2] | ~(ifu_exu_aluop_e[1] | ifu_exu_aluop_e[0])); |
---|
691 | |
---|
692 | assign is_logic_e = ifu_exu_aluop_e[2] | ifu_exu_aluop_e[1] | |
---|
693 | ifu_exu_aluop_e[0]; |
---|
694 | |
---|
695 | assign ecl_alu_sethi_inst_e = sethi_e;// | ifu_exu_sethi_inst_e; |
---|
696 | |
---|
697 | assign dont_move_e = (exu_ifu_regz_e)? ifu_exu_dontmv_regz1_e:ifu_exu_dontmv_regz0_e; |
---|
698 | |
---|
699 | assign sel_sum_d = ~(ifu_exu_enshift_d | ifu_exu_aluop_d[2] |ifu_exu_aluop_d[1] |ifu_exu_aluop_d[0]); |
---|
700 | assign ecl_alu_out_sel_sum_e_l = ~sel_sum_e; |
---|
701 | assign ecl_alu_out_sel_shift_e_l = ~(~is_logic_e & ~sel_sum_e); |
---|
702 | assign ecl_alu_out_sel_logic_e_l = ~(is_logic_e & ~dont_move_e & ~sel_sum_e); |
---|
703 | assign ecl_alu_out_sel_rs3_e_l = ~(is_logic_e & dont_move_e & ~sel_sum_e);// dontmove includes is_logic |
---|
704 | |
---|
705 | assign ecl_byp_sel_alu_e = ifu_exu_use_rsr_e_l; |
---|
706 | assign ecl_byp_sel_ifusr_e = ~ifu_exu_use_rsr_e_l & ifu_exu_rd_ifusr_e; |
---|
707 | assign ecl_byp_sel_yreg_e = ~ifu_exu_use_rsr_e_l & ~ifu_exu_rd_ifusr_e & read_yreg_e; |
---|
708 | assign ecl_byp_sel_eclpr_e = ~ifu_exu_use_rsr_e_l & ~ifu_exu_rd_ifusr_e & ~read_yreg_e; |
---|
709 | |
---|
710 | assign read_ffusr_e = ~ifu_exu_use_rsr_e_l & ifu_exu_rd_ffusr_e; |
---|
711 | assign read_tlusr_e = ~ifu_exu_use_rsr_e_l & ~ifu_exu_rd_ffusr_e & ~ifu_exu_rd_ifusr_e & ~ifu_exu_rd_exusr_e; |
---|
712 | assign ecl_byp_sel_ffusr_m = read_ffusr_m; |
---|
713 | assign ecl_byp_sel_tlusr_m = read_tlusr_m & ~read_ffusr_m; |
---|
714 | assign ecl_byp_sel_ifex_m = ~read_tlusr_m & ~read_ffusr_m; |
---|
715 | |
---|
716 | dff_s #(2) rsr_e2m(.din({read_ffusr_e, read_tlusr_e}), .clk(clk), |
---|
717 | .q({read_ffusr_m, read_tlusr_m}), .se(se), .si(), .so()); |
---|
718 | |
---|
719 | // ecc checking on rs3 will be cancelled if mov happens |
---|
720 | assign cancel_rs3_ecc_e = ~dont_move_e & is_logic_e; |
---|
721 | |
---|
722 | // compute xor for write to cwp |
---|
723 | assign ecl_rml_xor_data_e = byp_ecl_rs1_2_0_e[2:0] ^ byp_ecl_rs2_3_0_e[2:0]; |
---|
724 | // Logic for muls control signals |
---|
725 | // icc.v ^ icc.n |
---|
726 | assign ecl_div_muls_rs1_31_e_l = ~(cc_e_3 ^ cc_e_1); |
---|
727 | assign div_ecl_yreg_0[3:0] = ~div_ecl_yreg_0_l[3:0]; |
---|
728 | mux4ds yreg0_mux(.dout(div_ecl_yreg_0_d), |
---|
729 | .in0(div_ecl_yreg_0[0]), |
---|
730 | .in1(div_ecl_yreg_0[1]), |
---|
731 | .in2(div_ecl_yreg_0[2]), |
---|
732 | .in3(div_ecl_yreg_0[3]), |
---|
733 | .sel0(thr_d[0]), |
---|
734 | .sel1(thr_d[1]), |
---|
735 | .sel2(thr_d[2]), |
---|
736 | .sel3(thr_d[3])); |
---|
737 | |
---|
738 | assign zero_rs2_d = ifu_exu_muls_d & ~div_ecl_yreg_0_d; |
---|
739 | |
---|
740 | assign next_yreg_data_31 = (muls_e)? byp_ecl_rs1_2_0_e[0]:ecl_div_yreg_data_31_g; |
---|
741 | dff_s dff_rs1_b0_m2w(.din(next_yreg_data_31), .clk(clk), .q(ecl_div_yreg_data_31_g), |
---|
742 | .se(se), .si(), .so()); |
---|
743 | |
---|
744 | // Logic for carryin and subtract |
---|
745 | assign c_used_d = ~(ifu_exu_invert_d ^ ~(exu_ifu_cc_d[0] & ifu_exu_usecin_d)); |
---|
746 | // Pipeline flops |
---|
747 | dff_s sub_dff(.din(ifu_exu_invert_d), .clk(clk), .q(sub_e), .se(se), |
---|
748 | .si(), .so()); |
---|
749 | dff_s c_used_dff(.din(c_used_d), .clk(clk), .q(ecl_alu_cin_e), .se(se), |
---|
750 | .si(), .so()); |
---|
751 | dff_s dff_muls_d2e(.din(ifu_exu_muls_d), .clk(clk), .q(muls_e), |
---|
752 | .se(se), .si(), .so()); |
---|
753 | dff_s zero_rs2_dff(.din(zero_rs2_d), .clk(clk), .q(ecl_div_zero_rs2_e), |
---|
754 | .se(se), .si(), .so()); |
---|
755 | dff_s #(2) cc_d2e(.din({exu_ifu_cc_d[3],exu_ifu_cc_d[1]}), .clk(clk), .q({cc_e_3,cc_e_1}), |
---|
756 | .se(se), .si(), .so()); |
---|
757 | dff_s mulsrs131_e2m(.din(ecl_div_muls_rs1_31_e_l), .clk(clk), |
---|
758 | .q(muls_rs1_31_m_l), |
---|
759 | .se(se), .si(), .so()); |
---|
760 | dff_s rs2_31_e2m(.din(byp_ecl_rs2_31_e), .clk(clk), |
---|
761 | .q(rs2_data_31_m), .se(se), .si(), .so()); |
---|
762 | |
---|
763 | dff_s save_dff(.din(ifu_exu_save_d), .clk(clk), .q(save_e), .se(se), |
---|
764 | .si(), .so()); |
---|
765 | dff_s restore_dff(.din(ifu_exu_restore_d), .clk(clk), .q(restore_e), .se(se), |
---|
766 | .si(), .so()); |
---|
767 | |
---|
768 | // Condition code generation |
---|
769 | assign adder_xcc[0] = (~alu_ecl_cout64_e_l ^ sub_e) & sel_sum_e; |
---|
770 | assign adder_icc[0] = (alu_ecl_cout32_e ^ sub_e) & sel_sum_e; |
---|
771 | /* -----\/----- EXCLUDED -----\/----- |
---|
772 | assign adder_xcc[1] = ((byp_ecl_rs1_63_e & alu_ecl_adderin2_63_e & |
---|
773 | ~alu_ecl_adder_out_63_e) | |
---|
774 | (~byp_ecl_rs1_63_e & ~alu_ecl_adderin2_63_e & |
---|
775 | alu_ecl_adder_out_63_e)); |
---|
776 | assign adder_icc[1] = ((byp_ecl_rs1_31_e & alu_ecl_adderin2_31_e & |
---|
777 | ~alu_ecl_adder_out_31_e) | |
---|
778 | (~byp_ecl_rs1_31_e & ~alu_ecl_adderin2_31_e & |
---|
779 | alu_ecl_adder_out_31_e)); |
---|
780 | -----/\----- EXCLUDED -----/\----- */ |
---|
781 | assign adder_xcc[1] = (alu_ecl_adder_out_63_e) ? (~byp_ecl_rs1_63_e & ~alu_ecl_adderin2_63_e & sel_sum_e): |
---|
782 | (byp_ecl_rs1_63_e & alu_ecl_adderin2_63_e & sel_sum_e); |
---|
783 | assign adder_icc[1] = (alu_ecl_adder_out_31_e) ? ((~byp_ecl_rs1_31_e & ~alu_ecl_adderin2_31_e | tag_overflow) |
---|
784 | & sel_sum_e): |
---|
785 | ((byp_ecl_rs1_31_e & alu_ecl_adderin2_31_e | tag_overflow) |
---|
786 | & sel_sum_e); |
---|
787 | // Tagged overflow |
---|
788 | assign tag_overflow = (byp_ecl_rs1_2_0_e[0] | byp_ecl_rs1_2_0_e[1] | |
---|
789 | byp_ecl_rs2_3_0_e[0] | byp_ecl_rs2_3_0_e[1]) & ifu_exu_tagop_e; |
---|
790 | |
---|
791 | // Set V C ccs assuming they are 0s for logic and shifting |
---|
792 | assign alu_xcc_e[3] = (sel_sum_e)? alu_ecl_add_n64_e: alu_ecl_log_n64_e; |
---|
793 | assign alu_xcc_e[2] = alu_ecl_zlow_e & alu_ecl_zhigh_e; |
---|
794 | assign alu_xcc_e[1:0] = adder_xcc[1:0]; // includes sel_sum |
---|
795 | |
---|
796 | assign alu_icc_e[3] = (sel_sum_e)? alu_ecl_add_n32_e: alu_ecl_log_n32_e; |
---|
797 | assign alu_icc_e[2] = alu_ecl_zlow_e; |
---|
798 | assign alu_icc_e[1:0] = adder_icc[1:0]; // includes sel_sum |
---|
799 | |
---|
800 | // Tag overflow exception on TV instruction with icc.v |
---|
801 | assign tag_overflow_trap_e = ifu_exu_tv_e & adder_icc[1]; |
---|
802 | |
---|
803 | // Mem address exception generation and flops |
---|
804 | assign misalign_addr_e = (alu_ecl_adder_out_7_0_e[1] | alu_ecl_adder_out_7_0_e[0]) & ifu_exu_range_check_jlret_e; |
---|
805 | // jlret is used for misalign (E stage) and va hole (M stage). |
---|
806 | // if address mask is on then the va hole is not checked |
---|
807 | assign valid_range_check_jlret_e = ifu_exu_range_check_jlret_e & ~addr_mask_e; |
---|
808 | assign exu_ifu_va_oor_m = ~alu_ecl_mem_addr_invalid_m_l; |
---|
809 | assign exu_tlu_va_oor_m = (~alu_ecl_mem_addr_invalid_m_l & |
---|
810 | ifu_exu_range_check_other_m); |
---|
811 | assign exu_tlu_va_oor_jl_ret_m = (~alu_ecl_mem_addr_invalid_m_l & |
---|
812 | ifu_exu_range_check_jlret_m); |
---|
813 | dff_s dff_addr_mask_d2e (.din(ifu_exu_addr_mask_d), .clk(clk), .q(addr_mask_e), |
---|
814 | .se(se), .si(), .so()); |
---|
815 | dff_s dff_mem_invalid_e2m(.din(alu_ecl_mem_addr_invalid_e_l), .clk(clk), |
---|
816 | .q(alu_ecl_mem_addr_invalid_m_l), .se(se), |
---|
817 | .si(), .so()); |
---|
818 | dff_s dff_misalign_addr_e2m(.din(misalign_addr_e), .clk(clk), |
---|
819 | .q(exu_tlu_misalign_addr_jmpl_rtn_m), .se(se), |
---|
820 | .si(), .so()); |
---|
821 | dff_s dff_range_check_jlret_d2e(.din(ifu_exu_range_check_jlret_d), .clk(clk), |
---|
822 | .q(ifu_exu_range_check_jlret_e), .se(se), |
---|
823 | .si(), .so()); |
---|
824 | dff_s dff_range_check_jlret_e2m(.din(valid_range_check_jlret_e), .clk(clk), |
---|
825 | .q(ifu_exu_range_check_jlret_m), .se(se), |
---|
826 | .si(), .so()); |
---|
827 | dff_s dff_range_check_other_d2e(.din(ifu_exu_range_check_other_d), .clk(clk), |
---|
828 | .q(ifu_exu_range_check_other_e), .se(se), |
---|
829 | .si(), .so()); |
---|
830 | dff_s dff_range_check_other_e2m(.din(ifu_exu_range_check_other_e), .clk(clk), |
---|
831 | .q(ifu_exu_range_check_other_m), .se(se), |
---|
832 | .si(), .so()); |
---|
833 | |
---|
834 | // 3lsbs can be zeroes for ialign |
---|
835 | assign ecl_byp_3lsb_m[2:0] = (ialign_m)? 3'b0: byp_ecl_rd_data_3lsb_m[2:0]; |
---|
836 | |
---|
837 | ///////////////////////////// |
---|
838 | // Generate Shift control |
---|
839 | ///////////////////////////// |
---|
840 | assign shiftop_d[2:0] = ifu_exu_shiftop_d[2:0] & {3{ifu_exu_enshift_d}}; |
---|
841 | // shiftop: |
---|
842 | // 2 = 64bit shift |
---|
843 | // 1 = Rshift (1), LShift (0) |
---|
844 | // 0 = arithmetic shift |
---|
845 | assign ecl_shft_lshift_e_l = shiftop_e[1]; |
---|
846 | assign shft_sext_e = shiftop_e[0]; |
---|
847 | assign ecl_shft_op32_e = ~shiftop_e[2]; |
---|
848 | assign ecl_shft_enshift_e_l = ~enshift_e; |
---|
849 | // decide what sign extension for right shifts should be (in parallel w/ |
---|
850 | // masking operation) |
---|
851 | assign ecl_shft_extend32bit_e_l = ~(ecl_shft_op32_e & byp_ecl_rs1_31_e |
---|
852 | & shft_sext_e); |
---|
853 | assign extend64bit = shft_sext_e & byp_ecl_rs1_63_e & |
---|
854 | ~ecl_shft_op32_e; |
---|
855 | assign ecl_shft_extendbit_e = (extend64bit | ~ecl_shft_extend32bit_e_l); |
---|
856 | |
---|
857 | // Get rid of top bit for 32 bit instructions |
---|
858 | //assign mod_shiftby_e[5] = shiftop_e[2] & byp_ecl_rs2_3_0_e[5]; |
---|
859 | // decode shiftby input into mux control signals |
---|
860 | //assign ecl_shft_shift16_e[0] = (~mod_shiftby_e[5] & ~mod_shiftby_e[4]); |
---|
861 | //assign ecl_shft_shift16_e[1] = (~mod_shiftby_e[5] & mod_shiftby_e[4]); |
---|
862 | //assign ecl_shft_shift16_e[2] = (mod_shiftby_e[5] & ~mod_shiftby_e[4]); |
---|
863 | //assign ecl_shft_shift16_e[3] = (mod_shiftby_e[5] & mod_shiftby_e[4]); |
---|
864 | |
---|
865 | assign ecl_shft_shift4_e[0] = (~byp_ecl_rs2_3_0_e[3] & ~byp_ecl_rs2_3_0_e[2]); |
---|
866 | assign ecl_shft_shift4_e[1] = (~byp_ecl_rs2_3_0_e[3] & byp_ecl_rs2_3_0_e[2]); |
---|
867 | assign ecl_shft_shift4_e[2] = (byp_ecl_rs2_3_0_e[3] & ~byp_ecl_rs2_3_0_e[2]); |
---|
868 | assign ecl_shft_shift4_e[3] = (byp_ecl_rs2_3_0_e[3] & byp_ecl_rs2_3_0_e[2]); |
---|
869 | |
---|
870 | assign ecl_shft_shift1_e[0] = (~byp_ecl_rs2_3_0_e[1] & ~byp_ecl_rs2_3_0_e[0]); |
---|
871 | assign ecl_shft_shift1_e[1] = (~byp_ecl_rs2_3_0_e[1] & byp_ecl_rs2_3_0_e[0]); |
---|
872 | assign ecl_shft_shift1_e[2] = (byp_ecl_rs2_3_0_e[1] & ~byp_ecl_rs2_3_0_e[0]); |
---|
873 | assign ecl_shft_shift1_e[3] = (byp_ecl_rs2_3_0_e[1] & byp_ecl_rs2_3_0_e[0]); |
---|
874 | |
---|
875 | |
---|
876 | // pipeline flops for bypass data |
---|
877 | dff_s #(5) dff_rd_d2e(.din(ifu_exu_rd_d[4:0]), .clk(clk), .q(rd_e[4:0]), .se(se), |
---|
878 | .si(), .so()); |
---|
879 | // account for switch of ins outs on save/restore |
---|
880 | assign real_rd_e[4] = rd_e[4] ^ (rd_e[3] & (save_e | restore_e)); |
---|
881 | assign real_rd_e[3:0] = rd_e[3:0]; |
---|
882 | dff_s #(5) dff_rd_e2m(.din(real_rd_e[4:0]), .clk(clk), .q(rd_m[4:0]), .se(se), |
---|
883 | .si(), .so()); |
---|
884 | dff_s #(5) dff_rd_m2w(.din(ecl_irf_rd_m[4:0]), .clk(clk), .q(ecl_irf_rd_w[4:0]), .se(se), |
---|
885 | .si(), .so()); |
---|
886 | dff_s #(2) dff_thr_s2d(.din(ifu_exu_tid_s2[1:0]), .clk(clk), .q(tid_d[1:0]), .se(se), |
---|
887 | .si(), .so()); |
---|
888 | dff_s #(2) dff_tid_d2e(.din(tid_d[1:0]), .clk(clk), .q(tid_e[1:0]), .se(se), |
---|
889 | .si(), .so()); |
---|
890 | dff_s #(2) dff_thr_e2m(.din(tid_e[1:0]), .clk(clk), .q(tid_m[1:0]), .se(se), |
---|
891 | .si(), .so()); |
---|
892 | // Need the original thr and the one with ld thr muxed in |
---|
893 | dff_s #(2) dff_tid_m2w(.din(tid_m[1:0]), .clk(clk), .q(tid_w[1:0]), .se(se), |
---|
894 | .si(), .so()); |
---|
895 | dff_s #(2) dff_tid_w2w1(.din(tid_w[1:0]), .clk(clk), .q(tid_w1[1:0]), .se(se), |
---|
896 | .si(), .so()); |
---|
897 | dff_s #(2) dff_irf_thr_m2w(.din(ecl_irf_tid_m[1:0]), .clk(clk), .q(ecl_irf_tid_w[1:0]), .se(se), |
---|
898 | .si(), .so()); |
---|
899 | |
---|
900 | // Thread decode |
---|
901 | // decode tid_d |
---|
902 | assign thr_d[0] = ~tid_d[1] & ~tid_d[0]; |
---|
903 | assign thr_d[1] = ~tid_d[1] & tid_d[0]; |
---|
904 | assign thr_d[2] = tid_d[1] & ~tid_d[0]; |
---|
905 | assign thr_d[3] = tid_d[1] & tid_d[0]; |
---|
906 | |
---|
907 | // decode thr_e |
---|
908 | assign ecl_div_thr_e[0] = ~tid_e[1] & ~tid_e[0]; |
---|
909 | assign ecl_div_thr_e[1] = ~tid_e[1] & tid_e[0]; |
---|
910 | assign ecl_div_thr_e[2] = tid_e[1] & ~tid_e[0]; |
---|
911 | assign ecl_div_thr_e[3] = tid_e[1] & tid_e[0]; |
---|
912 | |
---|
913 | // decode thr_m |
---|
914 | assign thr_m[0] = ~tid_m[1] & ~tid_m[0]; |
---|
915 | assign thr_m[1] = ~tid_m[1] & tid_m[0]; |
---|
916 | assign thr_m[2] = tid_m[1] & ~tid_m[0]; |
---|
917 | assign thr_m[3] = tid_m[1] & tid_m[0]; |
---|
918 | assign ecl_rml_thr_m[3:0] = thr_m[3:0]; |
---|
919 | // decode tid_w |
---|
920 | assign ecl_rml_thr_w[0] = ~tid_w[1] & ~tid_w[0]; |
---|
921 | assign ecl_rml_thr_w[1] = ~tid_w[1] & tid_w[0]; |
---|
922 | assign ecl_rml_thr_w[2] = tid_w[1] & ~tid_w[0]; |
---|
923 | assign ecl_rml_thr_w[3] = tid_w[1] & tid_w[0]; |
---|
924 | |
---|
925 | ////////////////////////////////////// |
---|
926 | // Kill logic |
---|
927 | ////////////////////////////////////// |
---|
928 | // a parity error on a store should kill the next instruction on that thread |
---|
929 | // perr_store_w sets the bit. perr_kill_m says that the instruction in M should |
---|
930 | // be killed. However, it does not check inst_vld or flush so it might be killing |
---|
931 | // an invalid instruction. Therefore perr_store does not get cleared until W. This |
---|
932 | // might cause an extra perr_kill_m, but that is OK because subsequent instructions will |
---|
933 | // be killed until the trap is taken. |
---|
934 | wire [3:0] perr_store_w; |
---|
935 | wire [3:0] perr_clear_w; |
---|
936 | wire perr_kill_m; |
---|
937 | assign perr_store_w[3] = tid_w[1] & tid_w[0] & lsu_exu_st_dtlb_perr_g; |
---|
938 | assign perr_store_w[2] = tid_w[1] & ~tid_w[0] & lsu_exu_st_dtlb_perr_g; |
---|
939 | assign perr_store_w[1] = ~tid_w[1] & tid_w[0] & lsu_exu_st_dtlb_perr_g; |
---|
940 | assign perr_store_w[0] = ~tid_w[1] & ~tid_w[0] & lsu_exu_st_dtlb_perr_g; |
---|
941 | assign perr_store_next[3] = perr_store_w[3] | perr_store[3] & ~perr_clear_w[3]; |
---|
942 | assign perr_store_next[2] = perr_store_w[2] | perr_store[2] & ~perr_clear_w[2]; |
---|
943 | assign perr_store_next[1] = perr_store_w[1] | perr_store[1] & ~perr_clear_w[1]; |
---|
944 | assign perr_store_next[0] = perr_store_w[0] | perr_store[0] & ~perr_clear_w[0]; |
---|
945 | assign perr_kill[3] = tid_m[1] & tid_m[0] & perr_store[3]; |
---|
946 | assign perr_kill[2] = tid_m[1] & ~tid_m[0] & perr_store[2]; |
---|
947 | assign perr_kill[1] = ~tid_m[1] & tid_m[0] & perr_store[1]; |
---|
948 | assign perr_kill[0] = ~tid_m[1] & ~tid_m[0] & perr_store[0]; |
---|
949 | assign perr_kill_m = |perr_kill[3:0] | lsu_exu_st_dtlb_perr_g & thr_match_mw; |
---|
950 | assign perr_clear_w[3] = tid_w[1] & tid_w[0] & perr_store[3] & ifu_exu_inst_vld_w & ~ifu_tlu_flush_w; |
---|
951 | assign perr_clear_w[2] = tid_w[1] & ~tid_w[0] & perr_store[2] & ifu_exu_inst_vld_w & ~ifu_tlu_flush_w; |
---|
952 | assign perr_clear_w[1] = ~tid_w[1] & tid_w[0] & perr_store[1] & ifu_exu_inst_vld_w & ~ifu_tlu_flush_w; |
---|
953 | assign perr_clear_w[0] = ~tid_w[1] & ~tid_w[0] & perr_store[0] & ifu_exu_inst_vld_w & ~ifu_tlu_flush_w; |
---|
954 | |
---|
955 | dffr_s #(4) perr_dff(.din(perr_store_next[3:0]), .clk(clk), .q(perr_store[3:0]), .si(), .so(), .se(se), .rst(reset)); |
---|
956 | |
---|
957 | // calculate an early flush for killing writes in W |
---|
958 | // the pic trap occurs if there are too many instructions on a given thread. |
---|
959 | dff_s inst_vld_ww1(.din(ifu_exu_inst_vld_w), .clk(clk), .q(inst_vld_w1), .se(se), .si(), .so()); |
---|
960 | assign pic_trap_m = ((tlu_exu_pic_onebelow_m & (thr_match_mw & ifu_exu_inst_vld_w | |
---|
961 | thr_match_mw1 & inst_vld_w1)) | |
---|
962 | (tlu_exu_pic_twobelow_m & thr_match_mw & ifu_exu_inst_vld_w & |
---|
963 | thr_match_mw1 & inst_vld_w1)); |
---|
964 | assign part_early_flush_m = (exu_tlu_ttype_vld_m | ifu_exu_ttype_vld_m | exu_tlu_va_oor_jl_ret_m | |
---|
965 | perr_kill_m | pic_trap_m); |
---|
966 | dff_s priv_trap_dff(.din(tlu_exu_priv_trap_m), .clk(clk), .q(tlu_priv_trap_w), .se(se), .si(), .so()); |
---|
967 | dff_s early_flush_dff(.din(part_early_flush_m), .clk(clk), .q(part_early_flush_w), .se(se), .si(), .so()); |
---|
968 | assign early_flush_w = part_early_flush_w | tlu_priv_trap_w; |
---|
969 | assign ecl_rml_early_flush_w = early_flush_w; |
---|
970 | |
---|
971 | // buffer this off so it only sees one load from the ifu |
---|
972 | assign ecl_rml_inst_vld_w = ifu_exu_inst_vld_w & ~ifu_tlu_flush_w; |
---|
973 | |
---|
974 | dff_s flush_m2w(.din(ifu_tlu_flush_m), .clk(clk), .q(ifu_tlu_flush_w), .se(se), .si(), .so()); |
---|
975 | assign flush_w = ifu_tlu_flush_w | lsu_exu_flush_pipe_w; |
---|
976 | dff_s flush_w_dff(.din(flush_w), .clk(clk), .q(flush_w1), .se(se), .si(), .so()); |
---|
977 | // allow misalign address on returns to kill the cwp switch |
---|
978 | // ttype[7] is a fill_trap so the return misalign should be ignored |
---|
979 | // UE trap should kill window ops. This check is needed here because the |
---|
980 | // window traps will override the flush_W signals. |
---|
981 | assign kill_rml_m = (ue_trap_m | ifu_exu_ttype_vld_m | perr_kill_m | pic_trap_m | |
---|
982 | (exu_tlu_misalign_addr_jmpl_rtn_m & ~exu_tlu_ttype_m[7])); |
---|
983 | dff_s kill_rml_mw(.din(kill_rml_m), .clk(clk) , .q(kill_rml_w), .se(se), .si(), .so()); |
---|
984 | // include tlu_priv_trap to cancel window traps |
---|
985 | assign ecl_rml_kill_w = tlu_priv_trap_w | kill_rml_w; |
---|
986 | |
---|
987 | // pass kill_e through to the rml |
---|
988 | assign ecl_rml_kill_e = ifu_exu_kill_e; |
---|
989 | |
---|
990 | assign ecl_exu_kill_m = thr_match_mw1 & flush_w1; |
---|
991 | assign thr_match_mw = ~((tid_w[1] ^ tid_m[1]) | |
---|
992 | (tid_w[0] ^ tid_m[0])); |
---|
993 | assign thr_match_ew = ~((tid_e[1] ^ tid_w[1]) | |
---|
994 | (tid_e[0] ^ tid_w[0])); |
---|
995 | dff_s thr_match_ew_dff(.din(thr_match_ew), .clk(clk), .q(thr_match_mw1), .se(se), .si(), .so()); |
---|
996 | |
---|
997 | // ldxa needs to check inst_vld and prior flushes |
---|
998 | assign ecl_byp_ldxa_g = ldxa_g & ifu_exu_inst_vld_w; |
---|
999 | |
---|
1000 | // controls for outputs to lsu |
---|
1001 | assign std_d = ifu_exu_rs3e_vld_d & ifu_exu_rs3o_vld_d; |
---|
1002 | dff_s std_d2e (.din(std_d), .q(std_e), .clk(clk), .se(se), .si(), .so()); |
---|
1003 | assign ecl_byp_std_e_l = ~std_e; |
---|
1004 | |
---|
1005 | |
---|
1006 | ////////////////////////////////////// |
---|
1007 | // Trap output logic |
---|
1008 | //----------------------- |
---|
1009 | // In pipe traps (with priority order): |
---|
1010 | // 029h: uncorrected ecc trap |
---|
1011 | // 0C0h-0FFh: Fill trap |
---|
1012 | // 024h: clean window trap |
---|
1013 | // 034h: mem_address_not_aligned |
---|
1014 | // 023h: Tag Overflow |
---|
1015 | // 028h: Div by zero |
---|
1016 | // 100h-17Fh: Trap instruction |
---|
1017 | ////////////////////////////////////// |
---|
1018 | // ecc traps must be enabled |
---|
1019 | assign fill_trap_e = rml_ecl_fill_e; |
---|
1020 | |
---|
1021 | assign early_ttype_vld_e = (rml_ecl_clean_window_e | rml_ecl_fill_e | |
---|
1022 | tag_overflow_trap_e | ifu_exu_tcc_e | |
---|
1023 | misalign_addr_e); |
---|
1024 | // This ttype includes clean window, fill, tag overflow, tcc, misalign address, and div zero. |
---|
1025 | // Note that this will be div_zero on any divide instruction. The valid will only be asserted if |
---|
1026 | // div_zero is detected though. |
---|
1027 | assign early1_ttype_e[8] = 1'b0; |
---|
1028 | assign early1_ttype_e[7] = fill_trap_e; |
---|
1029 | assign early1_ttype_e[6] = fill_trap_e; |
---|
1030 | assign early1_ttype_e[5] = (rml_ecl_fill_e & rml_ecl_other_e) | |
---|
1031 | (~rml_ecl_fill_e & (rml_ecl_clean_window_e | tag_overflow_trap_e | div_e)); |
---|
1032 | assign early1_ttype_e[4] = fill_trap_e & rml_ecl_wtype_e[2]; |
---|
1033 | assign early1_ttype_e[3] = (rml_ecl_fill_e & rml_ecl_wtype_e[1]) | |
---|
1034 | (~rml_ecl_fill_e & ~rml_ecl_clean_window_e & ~tag_overflow_trap_e & div_e); |
---|
1035 | assign early1_ttype_e[2] = (fill_trap_e & rml_ecl_wtype_e[0]) | |
---|
1036 | (~rml_ecl_fill_e & rml_ecl_clean_window_e); |
---|
1037 | assign early1_ttype_e[1] = ~rml_ecl_fill_e & ~rml_ecl_clean_window_e & tag_overflow_trap_e; |
---|
1038 | assign early1_ttype_e[0] = (~rml_ecl_fill_e & ~rml_ecl_clean_window_e & tag_overflow_trap_e); |
---|
1039 | |
---|
1040 | // mux together the ttypes |
---|
1041 | // tcc only can be combined with an ue which is caught later so it isn't qualified by other traps |
---|
1042 | assign pick_normal_ttype = ~pick_not_aligned & ~ifu_exu_tcc_e; |
---|
1043 | assign pick_tcc = ifu_exu_tcc_e; |
---|
1044 | assign pick_not_aligned = ~(rml_ecl_fill_e | rml_ecl_clean_window_e) & misalign_addr_e & ~ifu_exu_tcc_e; |
---|
1045 | |
---|
1046 | // the ue ttype is muxed in after the flop because it is so late |
---|
1047 | mux3ds #(9) ttype_mux(.dout(early2_ttype_e[8:0]), |
---|
1048 | .in0(early1_ttype_e[8:0]), |
---|
1049 | .in1({1'b1, alu_ecl_adder_out_7_0_e[7:0]}), |
---|
1050 | .in2(9'h034), |
---|
1051 | .sel0(pick_normal_ttype), |
---|
1052 | .sel1(pick_tcc), |
---|
1053 | .sel2(pick_not_aligned)); |
---|
1054 | assign exu_tlu_ttype_m[8:0] = (ue_trap_m)? 9'h029: early_ttype_m[8:0]; |
---|
1055 | assign exu_tlu_ttype_vld_m = early_ttype_vld_m | ue_trap_m | div_zero_m; |
---|
1056 | assign exu_tlu_ue_trap_m = ue_trap_m; |
---|
1057 | |
---|
1058 | dff_s ttype_vld_e2m(.din(early_ttype_vld_e), .clk(clk), .q(early_ttype_vld_m), |
---|
1059 | .se(se), .si(), .so()); |
---|
1060 | dff_s #(9) ttype_e2m(.din(early2_ttype_e[8:0]), .clk(clk), .q(early_ttype_m[8:0]), |
---|
1061 | .se(se), .si(), .so()); |
---|
1062 | // lsu needs to know about spill and ue traps for squashing sfsr writes |
---|
1063 | dff_s fill_e2m(.din(fill_trap_e), .clk(clk), .q(fill_trap_m), .se(se), .si(), .so()); |
---|
1064 | assign exu_lsu_priority_trap_m = fill_trap_m | ue_trap_m; |
---|
1065 | |
---|
1066 | // Condition code Register |
---|
1067 | sparc_exu_eclccr ccr(.wb_ccr_thr_g(ecl_irf_tid_g[1:0]), |
---|
1068 | .thrdec_d (thr_d[3:0]), |
---|
1069 | .thr_w (ecl_rml_thr_w[3:0]), |
---|
1070 | /*AUTOINST*/ |
---|
1071 | // Outputs |
---|
1072 | .exu_ifu_cc_d (exu_ifu_cc_d[7:0]), |
---|
1073 | .exu_tlu_ccr0_w (exu_tlu_ccr0_w[7:0]), |
---|
1074 | .exu_tlu_ccr1_w (exu_tlu_ccr1_w[7:0]), |
---|
1075 | .exu_tlu_ccr2_w (exu_tlu_ccr2_w[7:0]), |
---|
1076 | .exu_tlu_ccr3_w (exu_tlu_ccr3_w[7:0]), |
---|
1077 | // Inputs |
---|
1078 | .clk (clk), |
---|
1079 | .se (se), |
---|
1080 | .alu_xcc_e (alu_xcc_e[3:0]), |
---|
1081 | .alu_icc_e (alu_icc_e[3:0]), |
---|
1082 | .tid_d (tid_d[1:0]), |
---|
1083 | .thr_match_dm (thr_match_dm), |
---|
1084 | .thr_match_de (thr_match_de), |
---|
1085 | .tid_w (tid_w[1:0]), |
---|
1086 | .ifu_exu_kill_e (ifu_exu_kill_e), |
---|
1087 | .ifu_exu_setcc_d(ifu_exu_setcc_d), |
---|
1088 | .byp_ecl_wrccr_data_w(byp_ecl_wrccr_data_w[7:0]), |
---|
1089 | .wb_ccr_wrccr_w (wb_ccr_wrccr_w), |
---|
1090 | .wb_ccr_setcc_g (wb_ccr_setcc_g), |
---|
1091 | .divcntl_ccr_cc_w2(divcntl_ccr_cc_w2[7:0]), |
---|
1092 | .tlu_exu_cwpccr_update_m(tlu_exu_cwpccr_update_m), |
---|
1093 | .tlu_exu_ccr_m (tlu_exu_ccr_m[7:0]), |
---|
1094 | .ifu_exu_inst_vld_w(ifu_exu_inst_vld_w), |
---|
1095 | .ifu_tlu_flush_w(ifu_tlu_flush_w), |
---|
1096 | .early_flush_w (early_flush_w)); |
---|
1097 | |
---|
1098 | // Writeback control logic |
---|
1099 | sparc_exu_ecl_wb writeback( |
---|
1100 | .read_yreg_e(read_yreg_e), |
---|
1101 | /*AUTOINST*/ |
---|
1102 | // Outputs |
---|
1103 | .wb_ccr_wrccr_w(wb_ccr_wrccr_w), |
---|
1104 | .ecl_rml_cwp_wen_e(ecl_rml_cwp_wen_e), |
---|
1105 | .ecl_rml_cansave_wen_w(ecl_rml_cansave_wen_w), |
---|
1106 | .ecl_rml_canrestore_wen_w(ecl_rml_canrestore_wen_w), |
---|
1107 | .ecl_rml_otherwin_wen_w(ecl_rml_otherwin_wen_w), |
---|
1108 | .ecl_rml_wstate_wen_w(ecl_rml_wstate_wen_w), |
---|
1109 | .ecl_rml_cleanwin_wen_w(ecl_rml_cleanwin_wen_w), |
---|
1110 | .ecl_byp_sel_load_m(ecl_byp_sel_load_m), |
---|
1111 | .ecl_byp_sel_restore_m(ecl_byp_sel_restore_m), |
---|
1112 | .ecl_byp_sel_pipe_m(ecl_byp_sel_pipe_m), |
---|
1113 | .ecl_byp_restore_m(ecl_byp_restore_m), |
---|
1114 | .ecl_irf_tid_m(ecl_irf_tid_m[1:0]), |
---|
1115 | .ecl_irf_rd_m(ecl_irf_rd_m[4:0]), |
---|
1116 | .ecl_irf_rd_g(ecl_irf_rd_g[4:0]), |
---|
1117 | .ecl_irf_wen_w2(ecl_irf_wen_w2), |
---|
1118 | .ecl_irf_tid_g(ecl_irf_tid_g[1:0]), |
---|
1119 | .wb_e (wb_e), |
---|
1120 | .bypass_m (bypass_m), |
---|
1121 | .ecl_irf_wen_w(ecl_irf_wen_w), |
---|
1122 | .ecl_byp_sel_load_g(ecl_byp_sel_load_g), |
---|
1123 | .ecl_byp_sel_muldiv_g(ecl_byp_sel_muldiv_g), |
---|
1124 | .ecl_byp_sel_restore_g(ecl_byp_sel_restore_g), |
---|
1125 | .wb_divcntl_ack_g(wb_divcntl_ack_g), |
---|
1126 | .wb_ccr_setcc_g(wb_ccr_setcc_g), |
---|
1127 | .ecl_byp_eclpr_e(ecl_byp_eclpr_e[7:0]), |
---|
1128 | .exu_ifu_longop_done_g(exu_ifu_longop_done_g[3:0]), |
---|
1129 | .ecl_div_yreg_wen_w(ecl_div_yreg_wen_w[3:0]), |
---|
1130 | .ecl_div_yreg_wen_g(ecl_div_yreg_wen_g[3:0]), |
---|
1131 | .ecl_div_yreg_shift_g(ecl_div_yreg_shift_g[3:0]), |
---|
1132 | .ecl_div_yreg_wen_l(ecl_div_yreg_wen_l[3:0]), |
---|
1133 | .wb_eccctl_spec_wen_next(wb_eccctl_spec_wen_next), |
---|
1134 | .bypass_w (bypass_w), |
---|
1135 | .wb_byplog_rd_w2(wb_byplog_rd_w2[4:0]), |
---|
1136 | .wb_byplog_tid_w2(wb_byplog_tid_w2[1:0]), |
---|
1137 | .wb_byplog_wen_w2(wb_byplog_wen_w2), |
---|
1138 | .wb_byplog_rd_g2(wb_byplog_rd_g2[4:0]), |
---|
1139 | .wb_byplog_wen_g2(wb_byplog_wen_g2), |
---|
1140 | .exu_ffu_wsr_inst_e(exu_ffu_wsr_inst_e), |
---|
1141 | // Inputs |
---|
1142 | .clk (clk), |
---|
1143 | .se (se), |
---|
1144 | .reset (reset), |
---|
1145 | .sehold (sehold), |
---|
1146 | .ld_rd_g (ld_rd_g[4:0]), |
---|
1147 | .ld_tid_g (ld_tid_g[1:0]), |
---|
1148 | .lsu_exu_dfill_vld_g(lsu_exu_dfill_vld_g), |
---|
1149 | .lsu_exu_ldst_miss_g2(lsu_exu_ldst_miss_g2), |
---|
1150 | .rd_m (rd_m[4:0]), |
---|
1151 | .tid_m (tid_m[1:0]), |
---|
1152 | .thr_m (thr_m[3:0]), |
---|
1153 | .tid_w1 (tid_w1[1:0]), |
---|
1154 | .ifu_exu_wen_d(ifu_exu_wen_d), |
---|
1155 | .ifu_exu_kill_e(ifu_exu_kill_e), |
---|
1156 | .ecl_exu_kill_m(ecl_exu_kill_m), |
---|
1157 | .rml_ecl_kill_m(rml_ecl_kill_m), |
---|
1158 | .ifu_tlu_flush_w(ifu_tlu_flush_w), |
---|
1159 | .flush_w1 (flush_w1), |
---|
1160 | .divcntl_wb_req_g(divcntl_wb_req_g), |
---|
1161 | .mdqctl_wb_divrd_g(mdqctl_wb_divrd_g[4:0]), |
---|
1162 | .mdqctl_wb_divthr_g(mdqctl_wb_divthr_g[1:0]), |
---|
1163 | .mdqctl_wb_mulrd_g(mdqctl_wb_mulrd_g[4:0]), |
---|
1164 | .mdqctl_wb_multhr_g(mdqctl_wb_multhr_g[1:0]), |
---|
1165 | .mdqctl_wb_divsetcc_g(mdqctl_wb_divsetcc_g), |
---|
1166 | .mdqctl_wb_mulsetcc_g(mdqctl_wb_mulsetcc_g), |
---|
1167 | .ecl_div_sel_div(ecl_div_sel_div), |
---|
1168 | .ifu_tlu_wsr_inst_d(ifu_tlu_wsr_inst_d), |
---|
1169 | .ifu_tlu_sraddr_d(ifu_tlu_sraddr_d[6:0]), |
---|
1170 | .rml_ecl_cwp_d(rml_ecl_cwp_d[2:0]), |
---|
1171 | .rml_ecl_cansave_d(rml_ecl_cansave_d[2:0]), |
---|
1172 | .rml_ecl_canrestore_d(rml_ecl_canrestore_d[2:0]), |
---|
1173 | .rml_ecl_otherwin_d(rml_ecl_otherwin_d[2:0]), |
---|
1174 | .rml_ecl_wstate_d(rml_ecl_wstate_d[5:0]), |
---|
1175 | .rml_ecl_cleanwin_d(rml_ecl_cleanwin_d[2:0]), |
---|
1176 | .exu_ifu_cc_d(exu_ifu_cc_d[7:0]), |
---|
1177 | .rml_ecl_swap_done(rml_ecl_swap_done[3:0]), |
---|
1178 | .rml_ecl_rmlop_done_e(rml_ecl_rmlop_done_e), |
---|
1179 | .mdqctl_wb_yreg_wen_g(mdqctl_wb_yreg_wen_g), |
---|
1180 | .mdqctl_wb_yreg_shift_g(mdqctl_wb_yreg_shift_g), |
---|
1181 | .ecl_byp_sel_ecc_m(ecl_byp_sel_ecc_m), |
---|
1182 | .eccctl_wb_rd_m(eccctl_wb_rd_m[4:0]), |
---|
1183 | .ifu_exu_inst_vld_e(ifu_exu_inst_vld_e), |
---|
1184 | .ifu_exu_inst_vld_w(ifu_exu_inst_vld_w), |
---|
1185 | .ifu_exu_return_d(ifu_exu_return_d), |
---|
1186 | .restore_e(restore_e), |
---|
1187 | .rml_ecl_fill_e(rml_ecl_fill_e), |
---|
1188 | .early_flush_w(early_flush_w), |
---|
1189 | .ecl_byp_ldxa_g(ecl_byp_ldxa_g)); |
---|
1190 | |
---|
1191 | //////////////////////// |
---|
1192 | // ECC control logic |
---|
1193 | //////////////////////// |
---|
1194 | sparc_exu_ecl_eccctl eccctl( |
---|
1195 | .ue_trap_m(ue_trap_m), |
---|
1196 | /*AUTOINST*/ |
---|
1197 | // Outputs |
---|
1198 | .ecl_ecc_sel_rs1_m_l(ecl_ecc_sel_rs1_m_l), |
---|
1199 | .ecl_ecc_sel_rs2_m_l(ecl_ecc_sel_rs2_m_l), |
---|
1200 | .ecl_ecc_sel_rs3_m_l(ecl_ecc_sel_rs3_m_l), |
---|
1201 | .ecl_ecc_log_rs1_m(ecl_ecc_log_rs1_m), |
---|
1202 | .ecl_ecc_log_rs2_m(ecl_ecc_log_rs2_m), |
---|
1203 | .ecl_ecc_log_rs3_m(ecl_ecc_log_rs3_m), |
---|
1204 | .ecl_byp_sel_ecc_m(ecl_byp_sel_ecc_m), |
---|
1205 | .ecl_ecc_rs1_use_rf_e(ecl_ecc_rs1_use_rf_e), |
---|
1206 | .ecl_ecc_rs2_use_rf_e(ecl_ecc_rs2_use_rf_e), |
---|
1207 | .ecl_ecc_rs3_use_rf_e(ecl_ecc_rs3_use_rf_e), |
---|
1208 | .eccctl_wb_rd_m(eccctl_wb_rd_m[4:0]), |
---|
1209 | .exu_ifu_ecc_ce_m(exu_ifu_ecc_ce_m), |
---|
1210 | .exu_ifu_ecc_ue_m(exu_ifu_ecc_ue_m), |
---|
1211 | .exu_ifu_err_reg_m(exu_ifu_err_reg_m[7:0]), |
---|
1212 | .ecl_byp_ecc_mask_m_l(ecl_byp_ecc_mask_m_l[7:0]), |
---|
1213 | .exu_ifu_inj_ack(exu_ifu_inj_ack), |
---|
1214 | .exu_ifu_err_synd_7_m(exu_ifu_err_synd_7_m), |
---|
1215 | // Inputs |
---|
1216 | .clk (clk), |
---|
1217 | .se (se), |
---|
1218 | .rst_tri_en(rst_tri_en), |
---|
1219 | .ecc_ecl_rs1_ce(ecc_ecl_rs1_ce), |
---|
1220 | .ecc_ecl_rs1_ue(ecc_ecl_rs1_ue), |
---|
1221 | .ecc_ecl_rs2_ce(ecc_ecl_rs2_ce), |
---|
1222 | .ecc_ecl_rs2_ue(ecc_ecl_rs2_ue), |
---|
1223 | .ecc_ecl_rs3_ce(ecc_ecl_rs3_ce), |
---|
1224 | .ecc_ecl_rs3_ue(ecc_ecl_rs3_ue), |
---|
1225 | .ecl_byp_rcc_mux2_sel_rf(ecl_byp_rcc_mux2_sel_rf), |
---|
1226 | .ecl_byp_rs2_mux2_sel_rf(ecl_byp_rs2_mux2_sel_rf), |
---|
1227 | .ecl_byp_rs3_mux2_sel_rf(ecl_byp_rs3_mux2_sel_rf), |
---|
1228 | .rs1_vld_e(rs1_vld_e), |
---|
1229 | .rs2_vld_e(rs2_vld_e), |
---|
1230 | .rs3_vld_e(rs3_vld_e), |
---|
1231 | .ifu_exu_rs1_m(ifu_exu_rs1_m[4:0]), |
---|
1232 | .ifu_exu_rs2_m(ifu_exu_rs2_m[4:0]), |
---|
1233 | .ifu_exu_rs3_m(ifu_exu_rs3_m[4:0]), |
---|
1234 | .rml_ecl_cwp_d(rml_ecl_cwp_d[2:0]), |
---|
1235 | .ifu_exu_ecc_mask(ifu_exu_ecc_mask[7:0]), |
---|
1236 | .ifu_exu_inj_irferr(ifu_exu_inj_irferr), |
---|
1237 | .ifu_exu_disable_ce_e(ifu_exu_disable_ce_e), |
---|
1238 | .wb_eccctl_spec_wen_next(wb_eccctl_spec_wen_next), |
---|
1239 | .ifu_exu_nceen_e(ifu_exu_nceen_e), |
---|
1240 | .ifu_exu_inst_vld_e(ifu_exu_inst_vld_e), |
---|
1241 | .rml_ecl_gl_e(rml_ecl_gl_e[1:0]), |
---|
1242 | .cancel_rs3_ecc_e(cancel_rs3_ecc_e)); |
---|
1243 | // Bypass logic |
---|
1244 | // Precalculate some of the matching logic to help timing |
---|
1245 | assign thr_match_sd = ~((ifu_exu_tid_s2[1] ^ tid_d[1]) | |
---|
1246 | (ifu_exu_tid_s2[0] ^ tid_d[0])); |
---|
1247 | dff_s thr_match_sd_dff(.din(thr_match_sd), .clk(clk), .q(thr_match_de), |
---|
1248 | .se(se), .si(), .so()); |
---|
1249 | assign thr_match_se = ~((ifu_exu_tid_s2[1] ^ tid_e[1]) | |
---|
1250 | (ifu_exu_tid_s2[0] ^ tid_e[0])); |
---|
1251 | dff_s thr_match_se_dff(.din(thr_match_se), .clk(clk), .q(thr_match_dm), |
---|
1252 | .se(se), .si(), .so()); |
---|
1253 | assign ld_thr_match_sm = ~((ifu_exu_tid_s2[1] ^ lsu_exu_thr_m[1]) | |
---|
1254 | (ifu_exu_tid_s2[0] ^ lsu_exu_thr_m[0])); |
---|
1255 | dff_s ld_thr_match_sm_dff(.din(ld_thr_match_sm), .clk(clk), .q(ld_thr_match_dg), .se(se), |
---|
1256 | .si(), .so()); |
---|
1257 | assign ld_thr_match_sg = ~((ifu_exu_tid_s2[1] ^ ld_tid_g[1]) | |
---|
1258 | (ifu_exu_tid_s2[0] ^ ld_tid_g[0])); |
---|
1259 | dff_s ld_thr_match_sg_dff(.din(ld_thr_match_sg), .clk(clk), .q(ld_thr_match_dg2), .se(se), |
---|
1260 | .si(), .so()); |
---|
1261 | sparc_exu_eclbyplog_rs1 byplog_rs1(.rs_sel_mux1_m(ecl_byp_rs1_mux1_sel_m), |
---|
1262 | .rs_sel_mux1_w(ecl_byp_rs1_mux1_sel_w), |
---|
1263 | .rs_sel_mux1_w2(ecl_byp_rs1_mux1_sel_w2), |
---|
1264 | .rs_sel_mux1_other(ecl_byp_rs1_mux1_sel_other), |
---|
1265 | .rs_sel_mux2_e(ecl_byp_rs1_mux2_sel_e), |
---|
1266 | .rs_sel_mux2_rf(ecl_byp_rs1_mux2_sel_rf), |
---|
1267 | .rs_sel_mux2_ld(ecl_byp_rs1_mux2_sel_ld), |
---|
1268 | .rs_sel_mux2_usemux1(ecl_byp_rs1_mux2_sel_usemux1), |
---|
1269 | .rs_sel_longmux_g2(ecl_byp_rs1_longmux_sel_g2), |
---|
1270 | .rs_sel_longmux_w2(ecl_byp_rs1_longmux_sel_w2), |
---|
1271 | .rs_sel_longmux_ldxa(ecl_byp_rs1_longmux_sel_ldxa), |
---|
1272 | .rs (ifu_exu_rs1_d[4:0]), |
---|
1273 | .use_other(ifu_exu_dbrinst_d), |
---|
1274 | /*AUTOINST*/ |
---|
1275 | // Outputs |
---|
1276 | .ecl_byp_rcc_mux1_sel_m(ecl_byp_rcc_mux1_sel_m), |
---|
1277 | .ecl_byp_rcc_mux1_sel_w(ecl_byp_rcc_mux1_sel_w), |
---|
1278 | .ecl_byp_rcc_mux1_sel_w2(ecl_byp_rcc_mux1_sel_w2), |
---|
1279 | .ecl_byp_rcc_mux1_sel_other(ecl_byp_rcc_mux1_sel_other), |
---|
1280 | .ecl_byp_rcc_mux2_sel_usemux1(ecl_byp_rcc_mux2_sel_usemux1), |
---|
1281 | .ecl_byp_rcc_mux2_sel_rf(ecl_byp_rcc_mux2_sel_rf), |
---|
1282 | .ecl_byp_rcc_mux2_sel_e(ecl_byp_rcc_mux2_sel_e), |
---|
1283 | .ecl_byp_rcc_mux2_sel_ld(ecl_byp_rcc_mux2_sel_ld), |
---|
1284 | // Inputs |
---|
1285 | .sehold(sehold), |
---|
1286 | .rd_e(rd_e[4:0]), |
---|
1287 | .rd_m(rd_m[4:0]), |
---|
1288 | .ecl_irf_rd_w(ecl_irf_rd_w[4:0]), |
---|
1289 | .ld_rd_g(ld_rd_g[4:0]), |
---|
1290 | .wb_byplog_rd_w2(wb_byplog_rd_w2[4:0]), |
---|
1291 | .wb_byplog_rd_g2(wb_byplog_rd_g2[4:0]), |
---|
1292 | .tid_d(tid_d[1:0]), |
---|
1293 | .thr_match_de(thr_match_de), |
---|
1294 | .thr_match_dm(thr_match_dm), |
---|
1295 | .ecl_irf_tid_w(ecl_irf_tid_w[1:0]), |
---|
1296 | .ld_thr_match_dg(ld_thr_match_dg), |
---|
1297 | .wb_byplog_tid_w2(wb_byplog_tid_w2[1:0]), |
---|
1298 | .ld_thr_match_dg2(ld_thr_match_dg2), |
---|
1299 | .ifu_exu_kill_e(ifu_exu_kill_e), |
---|
1300 | .wb_e(wb_e), |
---|
1301 | .bypass_m(bypass_m), |
---|
1302 | .lsu_exu_dfill_vld_g(lsu_exu_dfill_vld_g), |
---|
1303 | .bypass_w(bypass_w), |
---|
1304 | .wb_byplog_wen_w2(wb_byplog_wen_w2), |
---|
1305 | .wb_byplog_wen_g2(wb_byplog_wen_g2), |
---|
1306 | .ecl_byp_ldxa_g(ecl_byp_ldxa_g)); |
---|
1307 | |
---|
1308 | sparc_exu_eclbyplog byplog_rs2(.rs_sel_mux1_m(ecl_byp_rs2_mux1_sel_m), |
---|
1309 | .rs_sel_mux1_w(ecl_byp_rs2_mux1_sel_w), |
---|
1310 | .rs_sel_mux1_w2(ecl_byp_rs2_mux1_sel_w2), |
---|
1311 | .rs_sel_mux1_other(ecl_byp_rs2_mux1_sel_other), |
---|
1312 | .rs_sel_mux2_e(ecl_byp_rs2_mux2_sel_e), |
---|
1313 | .rs_sel_mux2_rf(ecl_byp_rs2_mux2_sel_rf), |
---|
1314 | .rs_sel_mux2_ld(ecl_byp_rs2_mux2_sel_ld), |
---|
1315 | .rs_sel_mux2_usemux1(ecl_byp_rs2_mux2_sel_usemux1), |
---|
1316 | .rs_sel_longmux_g2(ecl_byp_rs2_longmux_sel_g2), |
---|
1317 | .rs_sel_longmux_w2(ecl_byp_rs2_longmux_sel_w2), |
---|
1318 | .rs_sel_longmux_ldxa(ecl_byp_rs2_longmux_sel_ldxa), |
---|
1319 | .rs (ifu_exu_rs2_d[4:0]), |
---|
1320 | .use_other(ifu_exu_useimm_d), |
---|
1321 | /*AUTOINST*/ |
---|
1322 | // Inputs |
---|
1323 | .sehold(sehold), |
---|
1324 | .rd_e (rd_e[4:0]), |
---|
1325 | .rd_m (rd_m[4:0]), |
---|
1326 | .ecl_irf_rd_w(ecl_irf_rd_w[4:0]), |
---|
1327 | .ld_rd_g(ld_rd_g[4:0]), |
---|
1328 | .wb_byplog_rd_w2(wb_byplog_rd_w2[4:0]), |
---|
1329 | .wb_byplog_rd_g2(wb_byplog_rd_g2[4:0]), |
---|
1330 | .tid_d(tid_d[1:0]), |
---|
1331 | .thr_match_de(thr_match_de), |
---|
1332 | .thr_match_dm(thr_match_dm), |
---|
1333 | .ecl_irf_tid_w(ecl_irf_tid_w[1:0]), |
---|
1334 | .ld_thr_match_dg(ld_thr_match_dg), |
---|
1335 | .wb_byplog_tid_w2(wb_byplog_tid_w2[1:0]), |
---|
1336 | .ld_thr_match_dg2(ld_thr_match_dg2), |
---|
1337 | .ifu_exu_kill_e(ifu_exu_kill_e), |
---|
1338 | .wb_e (wb_e), |
---|
1339 | .bypass_m(bypass_m), |
---|
1340 | .lsu_exu_dfill_vld_g(lsu_exu_dfill_vld_g), |
---|
1341 | .bypass_w(bypass_w), |
---|
1342 | .wb_byplog_wen_w2(wb_byplog_wen_w2), |
---|
1343 | .wb_byplog_wen_g2(wb_byplog_wen_g2), |
---|
1344 | .ecl_byp_ldxa_g(ecl_byp_ldxa_g)); |
---|
1345 | sparc_exu_eclbyplog byplog_rs3(.rs_sel_mux1_m(ecl_byp_rs3_mux1_sel_m), |
---|
1346 | .rs_sel_mux1_w(ecl_byp_rs3_mux1_sel_w), |
---|
1347 | .rs_sel_mux1_w2(ecl_byp_rs3_mux1_sel_w2), |
---|
1348 | .rs_sel_mux1_other(ecl_byp_rs3_mux1_sel_other), |
---|
1349 | .rs_sel_mux2_e(ecl_byp_rs3_mux2_sel_e), |
---|
1350 | .rs_sel_mux2_rf(ecl_byp_rs3_mux2_sel_rf), |
---|
1351 | .rs_sel_mux2_ld(ecl_byp_rs3_mux2_sel_ld), |
---|
1352 | .rs_sel_mux2_usemux1(ecl_byp_rs3_mux2_sel_usemux1), |
---|
1353 | .rs_sel_longmux_g2(ecl_byp_rs3_longmux_sel_g2), |
---|
1354 | .rs_sel_longmux_w2(ecl_byp_rs3_longmux_sel_w2), |
---|
1355 | .rs_sel_longmux_ldxa(ecl_byp_rs3_longmux_sel_ldxa), |
---|
1356 | .rs ({ifu_exu_rs3_d[4:0]}), |
---|
1357 | .use_other(1'b0), |
---|
1358 | /*AUTOINST*/ |
---|
1359 | // Inputs |
---|
1360 | .sehold(sehold), |
---|
1361 | .rd_e (rd_e[4:0]), |
---|
1362 | .rd_m (rd_m[4:0]), |
---|
1363 | .ecl_irf_rd_w(ecl_irf_rd_w[4:0]), |
---|
1364 | .ld_rd_g(ld_rd_g[4:0]), |
---|
1365 | .wb_byplog_rd_w2(wb_byplog_rd_w2[4:0]), |
---|
1366 | .wb_byplog_rd_g2(wb_byplog_rd_g2[4:0]), |
---|
1367 | .tid_d(tid_d[1:0]), |
---|
1368 | .thr_match_de(thr_match_de), |
---|
1369 | .thr_match_dm(thr_match_dm), |
---|
1370 | .ecl_irf_tid_w(ecl_irf_tid_w[1:0]), |
---|
1371 | .ld_thr_match_dg(ld_thr_match_dg), |
---|
1372 | .wb_byplog_tid_w2(wb_byplog_tid_w2[1:0]), |
---|
1373 | .ld_thr_match_dg2(ld_thr_match_dg2), |
---|
1374 | .ifu_exu_kill_e(ifu_exu_kill_e), |
---|
1375 | .wb_e (wb_e), |
---|
1376 | .bypass_m(bypass_m), |
---|
1377 | .lsu_exu_dfill_vld_g(lsu_exu_dfill_vld_g), |
---|
1378 | .bypass_w(bypass_w), |
---|
1379 | .wb_byplog_wen_w2(wb_byplog_wen_w2), |
---|
1380 | .wb_byplog_wen_g2(wb_byplog_wen_g2), |
---|
1381 | .ecl_byp_ldxa_g(ecl_byp_ldxa_g)); |
---|
1382 | sparc_exu_eclbyplog byplog_rs3h(.rs_sel_mux1_m(ecl_byp_rs3h_mux1_sel_m), |
---|
1383 | .rs_sel_mux1_w(ecl_byp_rs3h_mux1_sel_w), |
---|
1384 | .rs_sel_mux1_w2(ecl_byp_rs3h_mux1_sel_w2), |
---|
1385 | .rs_sel_mux1_other(ecl_byp_rs3h_mux1_sel_other), |
---|
1386 | .rs_sel_mux2_e(ecl_byp_rs3h_mux2_sel_e), |
---|
1387 | .rs_sel_mux2_rf(ecl_byp_rs3h_mux2_sel_rf), |
---|
1388 | .rs_sel_mux2_ld(ecl_byp_rs3h_mux2_sel_ld), |
---|
1389 | .rs_sel_mux2_usemux1(ecl_byp_rs3h_mux2_sel_usemux1), |
---|
1390 | .rs_sel_longmux_g2(ecl_byp_rs3h_longmux_sel_g2), |
---|
1391 | .rs_sel_longmux_w2(ecl_byp_rs3h_longmux_sel_w2), |
---|
1392 | .rs_sel_longmux_ldxa(ecl_byp_rs3h_longmux_sel_ldxa), |
---|
1393 | .rs ({ifu_exu_rs3_d[4:1],1'b1}), |
---|
1394 | .use_other(1'b0), |
---|
1395 | /*AUTOINST*/ |
---|
1396 | // Inputs |
---|
1397 | .sehold(sehold), |
---|
1398 | .rd_e(rd_e[4:0]), |
---|
1399 | .rd_m(rd_m[4:0]), |
---|
1400 | .ecl_irf_rd_w(ecl_irf_rd_w[4:0]), |
---|
1401 | .ld_rd_g(ld_rd_g[4:0]), |
---|
1402 | .wb_byplog_rd_w2(wb_byplog_rd_w2[4:0]), |
---|
1403 | .wb_byplog_rd_g2(wb_byplog_rd_g2[4:0]), |
---|
1404 | .tid_d(tid_d[1:0]), |
---|
1405 | .thr_match_de(thr_match_de), |
---|
1406 | .thr_match_dm(thr_match_dm), |
---|
1407 | .ecl_irf_tid_w(ecl_irf_tid_w[1:0]), |
---|
1408 | .ld_thr_match_dg(ld_thr_match_dg), |
---|
1409 | .wb_byplog_tid_w2(wb_byplog_tid_w2[1:0]), |
---|
1410 | .ld_thr_match_dg2(ld_thr_match_dg2), |
---|
1411 | .ifu_exu_kill_e(ifu_exu_kill_e), |
---|
1412 | .wb_e(wb_e), |
---|
1413 | .bypass_m(bypass_m), |
---|
1414 | .lsu_exu_dfill_vld_g(lsu_exu_dfill_vld_g), |
---|
1415 | .bypass_w(bypass_w), |
---|
1416 | .wb_byplog_wen_w2(wb_byplog_wen_w2), |
---|
1417 | .wb_byplog_wen_g2(wb_byplog_wen_g2), |
---|
1418 | .ecl_byp_ldxa_g(ecl_byp_ldxa_g)); |
---|
1419 | |
---|
1420 | ///////////////////////// |
---|
1421 | // Division control logic |
---|
1422 | ///////////////////////// |
---|
1423 | sparc_exu_ecl_divcntl divcntl( |
---|
1424 | .div_ecl_divisorin_31(byp_ecl_rs2_31_e), |
---|
1425 | /*AUTOINST*/ |
---|
1426 | // Outputs |
---|
1427 | .ecl_div_xinmask(ecl_div_xinmask), |
---|
1428 | .ecl_div_keep_d(ecl_div_keep_d), |
---|
1429 | .ecl_div_ld_inputs(ecl_div_ld_inputs), |
---|
1430 | .ecl_div_sel_adder(ecl_div_sel_adder), |
---|
1431 | .ecl_div_last_cycle(ecl_div_last_cycle), |
---|
1432 | .ecl_div_almostlast_cycle(ecl_div_almostlast_cycle), |
---|
1433 | .ecl_div_sel_div(ecl_div_sel_div), |
---|
1434 | .divcntl_wb_req_g(divcntl_wb_req_g), |
---|
1435 | .divcntl_ccr_cc_w2(divcntl_ccr_cc_w2[7:0]), |
---|
1436 | .ecl_div_sel_64b(ecl_div_sel_64b), |
---|
1437 | .ecl_div_sel_u32(ecl_div_sel_u32), |
---|
1438 | .ecl_div_sel_pos32(ecl_div_sel_pos32), |
---|
1439 | .ecl_div_sel_neg32(ecl_div_sel_neg32), |
---|
1440 | .ecl_div_upper32_zero(ecl_div_upper32_zero), |
---|
1441 | .ecl_div_upper33_one(ecl_div_upper33_one), |
---|
1442 | .ecl_div_upper33_zero(ecl_div_upper33_zero), |
---|
1443 | .ecl_div_dividend_sign(ecl_div_dividend_sign), |
---|
1444 | .ecl_div_newq(ecl_div_newq), |
---|
1445 | .ecl_div_subtract_l(ecl_div_subtract_l), |
---|
1446 | .ecl_div_keepx(ecl_div_keepx), |
---|
1447 | .ecl_div_cin(ecl_div_cin), |
---|
1448 | // Inputs |
---|
1449 | .clk (clk), |
---|
1450 | .se (se), |
---|
1451 | .reset (reset), |
---|
1452 | .mdqctl_divcntl_input_vld(mdqctl_divcntl_input_vld), |
---|
1453 | .wb_divcntl_ack_g(wb_divcntl_ack_g), |
---|
1454 | .mdqctl_divcntl_reset_div(mdqctl_divcntl_reset_div), |
---|
1455 | .div_ecl_gencc_in_msb_l(div_ecl_gencc_in_msb_l), |
---|
1456 | .div_ecl_gencc_in_31(div_ecl_gencc_in_31), |
---|
1457 | .div_ecl_upper32_equal(div_ecl_upper32_equal), |
---|
1458 | .div_ecl_low32_nonzero(div_ecl_low32_nonzero), |
---|
1459 | .ecl_div_signed_div(ecl_div_signed_div), |
---|
1460 | .div_ecl_dividend_msb(div_ecl_dividend_msb), |
---|
1461 | .div_ecl_xin_msb_l(div_ecl_xin_msb_l), |
---|
1462 | .div_ecl_x_msb(div_ecl_x_msb), |
---|
1463 | .div_ecl_d_msb(div_ecl_d_msb), |
---|
1464 | .div_ecl_cout64(div_ecl_cout64), |
---|
1465 | .ecl_div_div64(ecl_div_div64), |
---|
1466 | .mdqctl_divcntl_muldone(mdqctl_divcntl_muldone), |
---|
1467 | .ecl_div_muls(ecl_div_muls), |
---|
1468 | .div_ecl_adder_out_31(div_ecl_adder_out_31), |
---|
1469 | .muls_rs1_31_m_l(muls_rs1_31_m_l), |
---|
1470 | .div_ecl_cout32(div_ecl_cout32), |
---|
1471 | .rs2_data_31_m(rs2_data_31_m), |
---|
1472 | .div_ecl_detect_zero_high(div_ecl_detect_zero_high), |
---|
1473 | .div_ecl_detect_zero_low(div_ecl_detect_zero_low), |
---|
1474 | .div_ecl_d_62(div_ecl_d_62)); |
---|
1475 | |
---|
1476 | assign div_e = mdqctl_divcntl_input_vld; |
---|
1477 | sparc_exu_ecl_mdqctl mdqctl(.div_zero_m(div_zero_m), |
---|
1478 | .byp_alu_rs1_data_31_e(byp_ecl_rs1_31_e), |
---|
1479 | .byp_alu_rs2_data_31_e(byp_ecl_rs2_31_e), |
---|
1480 | /*AUTOINST*/ |
---|
1481 | // Outputs |
---|
1482 | .mdqctl_divcntl_input_vld(mdqctl_divcntl_input_vld), |
---|
1483 | .mdqctl_divcntl_reset_div(mdqctl_divcntl_reset_div), |
---|
1484 | .mdqctl_divcntl_muldone(mdqctl_divcntl_muldone), |
---|
1485 | .ecl_div_div64(ecl_div_div64), |
---|
1486 | .ecl_div_signed_div(ecl_div_signed_div), |
---|
1487 | .ecl_div_muls(ecl_div_muls), |
---|
1488 | .mdqctl_wb_divthr_g(mdqctl_wb_divthr_g[1:0]), |
---|
1489 | .mdqctl_wb_divrd_g(mdqctl_wb_divrd_g[4:0]), |
---|
1490 | .mdqctl_wb_multhr_g(mdqctl_wb_multhr_g[1:0]), |
---|
1491 | .mdqctl_wb_mulrd_g(mdqctl_wb_mulrd_g[4:0]), |
---|
1492 | .mdqctl_wb_divsetcc_g(mdqctl_wb_divsetcc_g), |
---|
1493 | .mdqctl_wb_mulsetcc_g(mdqctl_wb_mulsetcc_g), |
---|
1494 | .mdqctl_wb_yreg_shift_g(mdqctl_wb_yreg_shift_g), |
---|
1495 | .exu_mul_input_vld(exu_mul_input_vld), |
---|
1496 | .mdqctl_wb_yreg_wen_g(mdqctl_wb_yreg_wen_g), |
---|
1497 | .ecl_div_mul_sext_rs1_e(ecl_div_mul_sext_rs1_e), |
---|
1498 | .ecl_div_mul_sext_rs2_e(ecl_div_mul_sext_rs2_e), |
---|
1499 | .ecl_div_mul_get_new_data(ecl_div_mul_get_new_data), |
---|
1500 | .ecl_div_mul_keep_data(ecl_div_mul_keep_data), |
---|
1501 | .ecl_div_mul_get_32bit_data(ecl_div_mul_get_32bit_data), |
---|
1502 | .ecl_div_mul_wen(ecl_div_mul_wen), |
---|
1503 | // Inputs |
---|
1504 | .clk (clk), |
---|
1505 | .se (se), |
---|
1506 | .reset (reset), |
---|
1507 | .ifu_exu_muldivop_d(ifu_exu_muldivop_d[4:0]), |
---|
1508 | .tid_d (tid_d[1:0]), |
---|
1509 | .ifu_exu_rd_d(ifu_exu_rd_d[4:0]), |
---|
1510 | .tid_w1 (tid_w1[1:0]), |
---|
1511 | .flush_w1(flush_w1), |
---|
1512 | .ifu_exu_inst_vld_w(ifu_exu_inst_vld_w), |
---|
1513 | .wb_divcntl_ack_g(wb_divcntl_ack_g), |
---|
1514 | .divcntl_wb_req_g(divcntl_wb_req_g), |
---|
1515 | .mul_exu_ack(mul_exu_ack), |
---|
1516 | .ecl_div_sel_div(ecl_div_sel_div), |
---|
1517 | .ifu_exu_muls_d(ifu_exu_muls_d), |
---|
1518 | .div_ecl_detect_zero_high(div_ecl_detect_zero_high), |
---|
1519 | .div_ecl_detect_zero_low(div_ecl_detect_zero_low), |
---|
1520 | .ifu_tlu_flush_w(ifu_tlu_flush_w), |
---|
1521 | .early_flush_w(early_flush_w)); |
---|
1522 | |
---|
1523 | endmodule // sparc_exu_ecl |
---|
1524 | |
---|
1525 | |
---|