[6] | 1 | // ========== Copyright Header Begin ========================================== |
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| 2 | // |
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| 3 | // OpenSPARC T1 Processor File: lsu_stb_ctldp.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 | //FPGA_SYN enables all FPGA related modifications |
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| 22 | `ifdef FPGA_SYN |
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| 23 | `define FPGA_SYN_CLK_EN |
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| 24 | `define FPGA_SYN_CLK_DFF |
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| 25 | `endif |
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| 26 | |
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| 27 | module lsu_stb_ctldp (/*AUTOARG*/ |
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| 28 | // Outputs |
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| 29 | so, stb_state_si_0, stb_state_si_1, stb_state_si_2, |
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| 30 | stb_state_si_3, stb_state_si_4, stb_state_si_5, stb_state_si_6, |
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| 31 | stb_state_si_7, stb_state_rtype_0, stb_state_rtype_1, |
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| 32 | stb_state_rtype_2, stb_state_rtype_3, stb_state_rtype_4, |
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| 33 | stb_state_rtype_5, stb_state_rtype_6, stb_state_rtype_7, |
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| 34 | stb_state_rmo, |
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| 35 | // Inputs |
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| 36 | rclk, si, se, stb_clk_en_l, lsu_stb_va_m, lsu_st_rq_type_m, |
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| 37 | lsu_st_rmo_m |
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| 38 | ); |
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| 39 | |
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| 40 | input rclk; |
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| 41 | input si; |
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| 42 | input se; |
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| 43 | // input tmb_l; |
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| 44 | |
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| 45 | output so; |
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| 46 | |
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| 47 | input [7:0] stb_clk_en_l; |
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| 48 | |
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| 49 | input [7:6] lsu_stb_va_m; |
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| 50 | input [2:1] lsu_st_rq_type_m; |
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| 51 | input lsu_st_rmo_m; |
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| 52 | |
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| 53 | output [3:2] stb_state_si_0; |
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| 54 | output [3:2] stb_state_si_1; |
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| 55 | output [3:2] stb_state_si_2; |
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| 56 | output [3:2] stb_state_si_3; |
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| 57 | output [3:2] stb_state_si_4; |
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| 58 | output [3:2] stb_state_si_5; |
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| 59 | output [3:2] stb_state_si_6; |
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| 60 | output [3:2] stb_state_si_7; |
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| 61 | |
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| 62 | output [2:1] stb_state_rtype_0; |
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| 63 | output [2:1] stb_state_rtype_1; |
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| 64 | output [2:1] stb_state_rtype_2; |
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| 65 | output [2:1] stb_state_rtype_3; |
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| 66 | output [2:1] stb_state_rtype_4; |
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| 67 | output [2:1] stb_state_rtype_5; |
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| 68 | output [2:1] stb_state_rtype_6; |
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| 69 | output [2:1] stb_state_rtype_7; |
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| 70 | |
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| 71 | output [7:0] stb_state_rmo; |
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| 72 | |
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| 73 | |
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| 74 | wire [7:0] stb_clk; |
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| 75 | |
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| 76 | wire clk; |
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| 77 | assign clk = rclk; |
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| 78 | |
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| 79 | `ifdef FPGA_SYN_CLK_EN |
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| 80 | `else |
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| 81 | clken_buf stb0_clkbuf ( |
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| 82 | .rclk (clk), |
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| 83 | .enb_l (stb_clk_en_l[0]), |
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| 84 | .tmb_l (~se), |
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| 85 | .clk (stb_clk[0]) |
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| 86 | ) ; |
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| 87 | `endif |
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| 88 | |
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| 89 | `ifdef FPGA_SYN_CLK_EN |
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| 90 | `else |
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| 91 | clken_buf stb1_clkbuf ( |
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| 92 | .rclk (clk), |
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| 93 | .enb_l (stb_clk_en_l[1]), |
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| 94 | .tmb_l (~se), |
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| 95 | .clk (stb_clk[1]) |
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| 96 | ) ; |
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| 97 | `endif |
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| 98 | |
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| 99 | `ifdef FPGA_SYN_CLK_EN |
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| 100 | `else |
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| 101 | clken_buf stb2_clkbuf ( |
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| 102 | .rclk (clk), |
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| 103 | .enb_l (stb_clk_en_l[2]), |
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| 104 | .tmb_l (~se), |
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| 105 | .clk (stb_clk[2]) |
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| 106 | ) ; |
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| 107 | `endif |
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| 108 | |
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| 109 | `ifdef FPGA_SYN_CLK_EN |
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| 110 | `else |
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| 111 | clken_buf stb3_clkbuf ( |
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| 112 | .rclk (clk), |
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| 113 | .enb_l (stb_clk_en_l[3]), |
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| 114 | .tmb_l (~se), |
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| 115 | .clk (stb_clk[3]) |
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| 116 | ) ; |
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| 117 | `endif |
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| 118 | |
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| 119 | `ifdef FPGA_SYN_CLK_EN |
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| 120 | `else |
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| 121 | clken_buf stb4_clkbuf ( |
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| 122 | .rclk (clk), |
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| 123 | .enb_l (stb_clk_en_l[4]), |
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| 124 | .tmb_l (~se), |
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| 125 | .clk (stb_clk[4]) |
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| 126 | ) ; |
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| 127 | `endif |
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| 128 | |
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| 129 | `ifdef FPGA_SYN_CLK_EN |
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| 130 | `else |
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| 131 | clken_buf stb5_clkbuf ( |
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| 132 | .rclk (clk), |
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| 133 | .enb_l (stb_clk_en_l[5]), |
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| 134 | .tmb_l (~se), |
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| 135 | .clk (stb_clk[5]) |
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| 136 | ) ; |
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| 137 | `endif |
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| 138 | |
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| 139 | `ifdef FPGA_SYN_CLK_EN |
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| 140 | `else |
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| 141 | clken_buf stb6_clkbuf ( |
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| 142 | .rclk (clk), |
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| 143 | .enb_l (stb_clk_en_l[6]), |
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| 144 | .tmb_l (~se), |
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| 145 | .clk (stb_clk[6]) |
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| 146 | ) ; |
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| 147 | `endif |
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| 148 | |
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| 149 | `ifdef FPGA_SYN_CLK_EN |
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| 150 | `else |
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| 151 | clken_buf stb7_clkbuf ( |
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| 152 | .rclk (clk), |
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| 153 | .enb_l (stb_clk_en_l[7]), |
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| 154 | .tmb_l (~se), |
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| 155 | .clk (stb_clk[7]) |
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| 156 | ) ; |
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| 157 | `endif |
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| 158 | |
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| 159 | |
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| 160 | |
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| 161 | `ifdef FPGA_SYN_CLK_DFF |
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| 162 | dffe_s #(5) ff_spec_write_0 ( |
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| 163 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 164 | lsu_st_rmo_m}), |
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| 165 | .q ({stb_state_si_0[3:2], stb_state_rtype_0[2:1], |
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| 166 | stb_state_rmo[0]} ), |
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| 167 | .en (~(stb_clk_en_l[0])), .clk(clk), |
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| 168 | .se (se), .si (), .so () |
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| 169 | ); |
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| 170 | `else |
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| 171 | dff_s #(5) ff_spec_write_0 ( |
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| 172 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 173 | lsu_st_rmo_m}), |
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| 174 | .q ({stb_state_si_0[3:2], stb_state_rtype_0[2:1], |
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| 175 | stb_state_rmo[0]} ), |
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| 176 | .clk (stb_clk[0]), |
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| 177 | .se (se), .si (), .so () |
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| 178 | ); |
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| 179 | `endif |
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| 180 | |
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| 181 | `ifdef FPGA_SYN_CLK_DFF |
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| 182 | dffe_s #(5) ff_spec_write_1 ( |
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| 183 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 184 | lsu_st_rmo_m}), |
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| 185 | .q ({stb_state_si_1[3:2], stb_state_rtype_1[2:1], |
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| 186 | stb_state_rmo[1]} ), |
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| 187 | .en (~(stb_clk_en_l[1])), .clk(clk), |
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| 188 | .se (se), .si (), .so () |
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| 189 | ); |
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| 190 | `else |
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| 191 | dff_s #(5) ff_spec_write_1 ( |
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| 192 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 193 | lsu_st_rmo_m}), |
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| 194 | .q ({stb_state_si_1[3:2], stb_state_rtype_1[2:1], |
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| 195 | stb_state_rmo[1]} ), |
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| 196 | .clk (stb_clk[1]), |
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| 197 | .se (se), .si (), .so () |
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| 198 | ); |
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| 199 | `endif |
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| 200 | |
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| 201 | `ifdef FPGA_SYN_CLK_DFF |
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| 202 | dffe_s #(5) ff_spec_write_2 ( |
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| 203 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 204 | lsu_st_rmo_m}), |
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| 205 | .q ({stb_state_si_2[3:2], stb_state_rtype_2[2:1], |
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| 206 | stb_state_rmo[2]} ), |
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| 207 | .en (~(stb_clk_en_l[2])), .clk(clk), |
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| 208 | .se (se), .si (), .so () |
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| 209 | ); |
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| 210 | `else |
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| 211 | dff_s #(5) ff_spec_write_2 ( |
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| 212 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 213 | lsu_st_rmo_m}), |
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| 214 | .q ({stb_state_si_2[3:2], stb_state_rtype_2[2:1], |
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| 215 | stb_state_rmo[2]} ), |
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| 216 | .clk (stb_clk[2]), |
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| 217 | .se (se), .si (), .so () |
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| 218 | ); |
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| 219 | `endif |
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| 220 | `ifdef FPGA_SYN_CLK_DFF |
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| 221 | dffe_s #(5) ff_spec_write_3 ( |
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| 222 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 223 | lsu_st_rmo_m}), |
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| 224 | .q ({stb_state_si_3[3:2], stb_state_rtype_3[2:1], |
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| 225 | stb_state_rmo[3]} ), |
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| 226 | .en (~(stb_clk_en_l[3])), .clk(clk), |
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| 227 | .se (se), .si (), .so () |
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| 228 | ); |
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| 229 | `else |
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| 230 | dff_s #(5) ff_spec_write_3 ( |
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| 231 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 232 | lsu_st_rmo_m}), |
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| 233 | .q ({stb_state_si_3[3:2], stb_state_rtype_3[2:1], |
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| 234 | stb_state_rmo[3]} ), |
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| 235 | .clk (stb_clk[3]), |
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| 236 | .se (se), .si (), .so () |
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| 237 | ); |
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| 238 | `endif |
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| 239 | `ifdef FPGA_SYN_CLK_DFF |
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| 240 | dffe_s #(5) ff_spec_write_4 ( |
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| 241 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 242 | lsu_st_rmo_m}), |
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| 243 | .q ({stb_state_si_4[3:2], stb_state_rtype_4[2:1], |
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| 244 | stb_state_rmo[4]} ), |
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| 245 | .en (~(stb_clk_en_l[4])), .clk(clk), |
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| 246 | .se (se), .si (), .so () |
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| 247 | ); |
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| 248 | `else |
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| 249 | dff_s #(5) ff_spec_write_4 ( |
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| 250 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 251 | lsu_st_rmo_m}), |
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| 252 | .q ({stb_state_si_4[3:2], stb_state_rtype_4[2:1], |
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| 253 | stb_state_rmo[4]} ), |
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| 254 | .clk (stb_clk[4]), |
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| 255 | .se (se), .si (), .so () |
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| 256 | ); |
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| 257 | `endif |
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| 258 | `ifdef FPGA_SYN_CLK_DFF |
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| 259 | dffe_s #(5) ff_spec_write_5 ( |
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| 260 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 261 | lsu_st_rmo_m}), |
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| 262 | .q ({stb_state_si_5[3:2], stb_state_rtype_5[2:1], |
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| 263 | stb_state_rmo[5]} ), |
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| 264 | .en (~(stb_clk_en_l[5])), .clk(clk), |
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| 265 | .se (se), .si (), .so () |
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| 266 | ); |
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| 267 | `else |
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| 268 | dff_s #(5) ff_spec_write_5 ( |
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| 269 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 270 | lsu_st_rmo_m}), |
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| 271 | .q ({stb_state_si_5[3:2], stb_state_rtype_5[2:1], |
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| 272 | stb_state_rmo[5]} ), |
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| 273 | .clk (stb_clk[5]), |
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| 274 | .se (se), .si (), .so () |
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| 275 | ); |
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| 276 | `endif |
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| 277 | `ifdef FPGA_SYN_CLK_DFF |
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| 278 | dffe_s #(5) ff_spec_write_6 ( |
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| 279 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 280 | lsu_st_rmo_m}), |
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| 281 | .q ({stb_state_si_6[3:2], stb_state_rtype_6[2:1], |
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| 282 | stb_state_rmo[6]} ), |
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| 283 | .en (~(stb_clk_en_l[6])), .clk(clk), |
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| 284 | .se (se), .si (), .so () |
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| 285 | ); |
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| 286 | `else |
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| 287 | dff_s #(5) ff_spec_write_6 ( |
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| 288 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 289 | lsu_st_rmo_m}), |
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| 290 | .q ({stb_state_si_6[3:2], stb_state_rtype_6[2:1], |
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| 291 | stb_state_rmo[6]} ), |
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| 292 | .clk (stb_clk[6]), |
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| 293 | .se (se), .si (), .so () |
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| 294 | ); |
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| 295 | `endif |
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| 296 | |
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| 297 | `ifdef FPGA_SYN_CLK_DFF |
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| 298 | dffe_s #(5) ff_spec_write_7 ( |
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| 299 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 300 | lsu_st_rmo_m}), |
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| 301 | .q ({stb_state_si_7[3:2], stb_state_rtype_7[2:1], |
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| 302 | stb_state_rmo[7]} ), |
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| 303 | .en (~(stb_clk_en_l[7])), .clk(clk), |
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| 304 | .se (se), .si (), .so () |
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| 305 | ); |
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| 306 | `else |
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| 307 | dff_s #(5) ff_spec_write_7 ( |
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| 308 | .din ({lsu_stb_va_m[7:6], lsu_st_rq_type_m[2:1], |
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| 309 | lsu_st_rmo_m}), |
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| 310 | .q ({stb_state_si_7[3:2], stb_state_rtype_7[2:1], |
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| 311 | stb_state_rmo[7]} ), |
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| 312 | .clk (stb_clk[7]), |
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| 313 | .se (se), .si (), .so () |
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| 314 | ); |
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| 315 | `endif |
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| 316 | |
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| 317 | |
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| 318 | endmodule // lsu_stb_ctldp |
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