| 1 | module CondSet(comparand_a,out);
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| 2 | input [31:0] comparand_a;
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| 3 | output [31:0] out;
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| 4 | wire [31:0] comparand_b;
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| 5 | wire [31:0] thenset;
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| 6 | wire [31:0] elseset;
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| 7 | // computes: if(comparand_a > comparand_b) then out = thenset else out = elseset
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| 8 |
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| 9 | assign comparand_b = 0;
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| 10 | assign thenset = 0;
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| 11 | assign elseset = 1;
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| 12 |
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| 13 | CondSetInt cs0( .comparand_a( comparand_a ), .comparand_b( comparand_b ), .thenset( thenset ), .elseset( elseset ), .out( out ) );
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| 14 |
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| 15 | endmodule
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| 16 |
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| 17 | module CondSetInt(comparand_a,comparand_b,thenset,elseset,out);
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| 18 | input [31:0] comparand_a;
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| 19 | input [31:0] comparand_b;
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| 20 | input [31:0] thenset;
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| 21 | input [31:0] elseset;
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| 22 | output [31:0] out;
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| 23 | // computes: if(comparand_a > comparand_b) then out = thenset else out = elseset
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| 24 |
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| 25 | wire sign_a;
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| 26 | wire sign_b;
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| 27 | assign sign_a = comparand_a[31];
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| 28 | assign sign_b = comparand_b[31];
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| 29 |
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| 30 | wire [30:0] a;
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| 31 | wire [30:0] b;
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| 32 | assign a = comparand_a[30:0];
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| 33 | assign b = comparand_b[30:0];
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| 34 |
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| 35 | wire takethen;
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| 36 | wire takeelse;
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| 37 | assign takethen = a_gt_b;
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| 38 | assign takeelse = ~takethen;
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| 39 |
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| 40 | wire a_gt_b;
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| 41 | assign a_gt_b = (~sign_a & sign_b) | ~(sign_a ^ sign_b) & abits_gt_bbits;
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| 42 |
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| 43 | wire abits_gt_bbits;
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| 44 | assign abits_gt_bbits =
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| 45 | a_gt_b_at_30 |
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| 46 | a_gt_b_at_29 |
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| 47 | a_gt_b_at_28 |
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| 48 | a_gt_b_at_27 |
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| 49 | a_gt_b_at_26 |
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| 50 | a_gt_b_at_25 |
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| 51 | a_gt_b_at_24 |
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| 52 | a_gt_b_at_23 |
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| 53 | a_gt_b_at_22 |
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| 54 | a_gt_b_at_21 |
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| 55 | a_gt_b_at_20 |
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| 56 | a_gt_b_at_19 |
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| 57 | a_gt_b_at_18 |
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| 58 | a_gt_b_at_17 |
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| 59 | a_gt_b_at_16 |
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| 60 | a_gt_b_at_15 |
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| 61 | a_gt_b_at_14 |
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| 62 | a_gt_b_at_13 |
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| 63 | a_gt_b_at_12 |
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| 64 | a_gt_b_at_11 |
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| 65 | a_gt_b_at_10 |
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| 66 | a_gt_b_at_9 |
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| 67 | a_gt_b_at_8 |
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| 68 | a_gt_b_at_7 |
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| 69 | a_gt_b_at_6 |
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| 70 | a_gt_b_at_5 |
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| 71 | a_gt_b_at_4 |
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| 72 | a_gt_b_at_3 |
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| 73 | a_gt_b_at_2 |
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| 74 | a_gt_b_at_1 |
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| 75 | a_gt_b_at_0 ;
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| 76 |
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| 77 | wire a_eq_b_down_to_30;
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| 78 | assign a_eq_b_down_to_30 = ~(a[30] ^ b[30]);
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| 79 | wire a_eq_b_down_to_29;
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| 80 | assign a_eq_b_down_to_29 = a_eq_b_down_to_30 & ~(a[29] ^ b[29]);
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| 81 | wire a_eq_b_down_to_28;
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| 82 | assign a_eq_b_down_to_28 = a_eq_b_down_to_29 & ~(a[28] ^ b[28]);
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| 83 | wire a_eq_b_down_to_27;
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| 84 | assign a_eq_b_down_to_27 = a_eq_b_down_to_28 & ~(a[27] ^ b[27]);
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| 85 | wire a_eq_b_down_to_26;
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| 86 | assign a_eq_b_down_to_26 = a_eq_b_down_to_27 & ~(a[26] ^ b[26]);
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| 87 | wire a_eq_b_down_to_25;
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| 88 | assign a_eq_b_down_to_25 = a_eq_b_down_to_26 & ~(a[25] ^ b[25]);
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| 89 | wire a_eq_b_down_to_24;
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| 90 | assign a_eq_b_down_to_24 = a_eq_b_down_to_25 & ~(a[24] ^ b[24]);
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| 91 | wire a_eq_b_down_to_23;
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| 92 | assign a_eq_b_down_to_23 = a_eq_b_down_to_24 & ~(a[23] ^ b[23]);
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| 93 | wire a_eq_b_down_to_22;
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| 94 | assign a_eq_b_down_to_22 = a_eq_b_down_to_23 & ~(a[22] ^ b[22]);
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| 95 | wire a_eq_b_down_to_21;
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| 96 | assign a_eq_b_down_to_21 = a_eq_b_down_to_22 & ~(a[21] ^ b[21]);
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| 97 | wire a_eq_b_down_to_20;
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| 98 | assign a_eq_b_down_to_20 = a_eq_b_down_to_21 & ~(a[20] ^ b[20]);
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| 99 | wire a_eq_b_down_to_19;
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| 100 | assign a_eq_b_down_to_19 = a_eq_b_down_to_20 & ~(a[19] ^ b[19]);
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| 101 | wire a_eq_b_down_to_18;
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| 102 | assign a_eq_b_down_to_18 = a_eq_b_down_to_19 & ~(a[18] ^ b[18]);
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| 103 | wire a_eq_b_down_to_17;
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| 104 | assign a_eq_b_down_to_17 = a_eq_b_down_to_18 & ~(a[17] ^ b[17]);
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| 105 | wire a_eq_b_down_to_16;
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| 106 | assign a_eq_b_down_to_16 = a_eq_b_down_to_17 & ~(a[16] ^ b[16]);
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| 107 | wire a_eq_b_down_to_15;
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| 108 | assign a_eq_b_down_to_15 = a_eq_b_down_to_16 & ~(a[15] ^ b[15]);
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| 109 | wire a_eq_b_down_to_14;
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| 110 | assign a_eq_b_down_to_14 = a_eq_b_down_to_15 & ~(a[14] ^ b[14]);
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| 111 | wire a_eq_b_down_to_13;
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| 112 | assign a_eq_b_down_to_13 = a_eq_b_down_to_14 & ~(a[13] ^ b[13]);
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| 113 | wire a_eq_b_down_to_12;
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| 114 | assign a_eq_b_down_to_12 = a_eq_b_down_to_13 & ~(a[12] ^ b[12]);
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| 115 | wire a_eq_b_down_to_11;
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| 116 | assign a_eq_b_down_to_11 = a_eq_b_down_to_12 & ~(a[11] ^ b[11]);
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| 117 | wire a_eq_b_down_to_10;
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| 118 | assign a_eq_b_down_to_10 = a_eq_b_down_to_11 & ~(a[10] ^ b[10]);
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| 119 | wire a_eq_b_down_to_9;
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| 120 | assign a_eq_b_down_to_9 = a_eq_b_down_to_10 & ~(a[9] ^ b[9]);
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| 121 | wire a_eq_b_down_to_8;
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| 122 | assign a_eq_b_down_to_8 = a_eq_b_down_to_9 & ~(a[8] ^ b[8]);
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| 123 | wire a_eq_b_down_to_7;
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| 124 | assign a_eq_b_down_to_7 = a_eq_b_down_to_8 & ~(a[7] ^ b[7]);
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| 125 | wire a_eq_b_down_to_6;
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| 126 | assign a_eq_b_down_to_6 = a_eq_b_down_to_7 & ~(a[6] ^ b[6]);
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| 127 | wire a_eq_b_down_to_5;
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| 128 | assign a_eq_b_down_to_5 = a_eq_b_down_to_6 & ~(a[5] ^ b[5]);
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| 129 | wire a_eq_b_down_to_4;
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| 130 | assign a_eq_b_down_to_4 = a_eq_b_down_to_5 & ~(a[4] ^ b[4]);
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| 131 | wire a_eq_b_down_to_3;
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| 132 | assign a_eq_b_down_to_3 = a_eq_b_down_to_4 & ~(a[3] ^ b[3]);
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| 133 | wire a_eq_b_down_to_2;
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| 134 | assign a_eq_b_down_to_2 = a_eq_b_down_to_3 & ~(a[2] ^ b[2]);
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| 135 | wire a_eq_b_down_to_1;
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| 136 | assign a_eq_b_down_to_1 = a_eq_b_down_to_2 & ~(a[1] ^ b[1]);
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| 137 | wire a_eq_b_down_to_0;
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| 138 | assign a_eq_b_down_to_0 = a_eq_b_down_to_1 & ~(a[0] ^ b[0]);
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| 139 |
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| 140 | wire a_gt_b_at_30;
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| 141 | assign a_gt_b_at_30 = a[30] & ~b[30];
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| 142 | wire a_gt_b_at_29;
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| 143 | assign a_gt_b_at_29 = a_eq_b_down_to_30 & (a[29] & ~b[29]);
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| 144 | wire a_gt_b_at_28;
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| 145 | assign a_gt_b_at_28 = a_eq_b_down_to_29 & (a[28] & ~b[28]);
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| 146 | wire a_gt_b_at_27;
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| 147 | assign a_gt_b_at_27 = a_eq_b_down_to_28 & (a[27] & ~b[27]);
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| 148 | wire a_gt_b_at_26;
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| 149 | assign a_gt_b_at_26 = a_eq_b_down_to_27 & (a[26] & ~b[26]);
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| 150 | wire a_gt_b_at_25;
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| 151 | assign a_gt_b_at_25 = a_eq_b_down_to_26 & (a[25] & ~b[25]);
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| 152 | wire a_gt_b_at_24;
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| 153 | assign a_gt_b_at_24 = a_eq_b_down_to_25 & (a[24] & ~b[24]);
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| 154 | wire a_gt_b_at_23;
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| 155 | assign a_gt_b_at_23 = a_eq_b_down_to_24 & (a[23] & ~b[23]);
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| 156 | wire a_gt_b_at_22;
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| 157 | assign a_gt_b_at_22 = a_eq_b_down_to_23 & (a[22] & ~b[22]);
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| 158 | wire a_gt_b_at_21;
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| 159 | assign a_gt_b_at_21 = a_eq_b_down_to_22 & (a[21] & ~b[21]);
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| 160 | wire a_gt_b_at_20;
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| 161 | assign a_gt_b_at_20 = a_eq_b_down_to_21 & (a[20] & ~b[20]);
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| 162 | wire a_gt_b_at_19;
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| 163 | assign a_gt_b_at_19 = a_eq_b_down_to_20 & (a[19] & ~b[19]);
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| 164 | wire a_gt_b_at_18;
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| 165 | assign a_gt_b_at_18 = a_eq_b_down_to_19 & (a[18] & ~b[18]);
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| 166 | wire a_gt_b_at_17;
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| 167 | assign a_gt_b_at_17 = a_eq_b_down_to_18 & (a[17] & ~b[17]);
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| 168 | wire a_gt_b_at_16;
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| 169 | assign a_gt_b_at_16 = a_eq_b_down_to_17 & (a[16] & ~b[16]);
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| 170 | wire a_gt_b_at_15;
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| 171 | assign a_gt_b_at_15 = a_eq_b_down_to_16 & (a[15] & ~b[15]);
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| 172 | wire a_gt_b_at_14;
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| 173 | assign a_gt_b_at_14 = a_eq_b_down_to_15 & (a[14] & ~b[14]);
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| 174 | wire a_gt_b_at_13;
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| 175 | assign a_gt_b_at_13 = a_eq_b_down_to_14 & (a[13] & ~b[13]);
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| 176 | wire a_gt_b_at_12;
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| 177 | assign a_gt_b_at_12 = a_eq_b_down_to_13 & (a[12] & ~b[12]);
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| 178 | wire a_gt_b_at_11;
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| 179 | assign a_gt_b_at_11 = a_eq_b_down_to_12 & (a[11] & ~b[11]);
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| 180 | wire a_gt_b_at_10;
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| 181 | assign a_gt_b_at_10 = a_eq_b_down_to_11 & (a[10] & ~b[10]);
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| 182 | wire a_gt_b_at_9;
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| 183 | assign a_gt_b_at_9 = a_eq_b_down_to_10 & (a[9] & ~b[9]);
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| 184 | wire a_gt_b_at_8;
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| 185 | assign a_gt_b_at_8 = a_eq_b_down_to_9 & (a[8] & ~b[8]);
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| 186 | wire a_gt_b_at_7;
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| 187 | assign a_gt_b_at_7 = a_eq_b_down_to_8 & (a[7] & ~b[7]);
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| 188 | wire a_gt_b_at_6;
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| 189 | assign a_gt_b_at_6 = a_eq_b_down_to_7 & (a[6] & ~b[6]);
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| 190 | wire a_gt_b_at_5;
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| 191 | assign a_gt_b_at_5 = a_eq_b_down_to_6 & (a[5] & ~b[5]);
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| 192 | wire a_gt_b_at_4;
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| 193 | assign a_gt_b_at_4 = a_eq_b_down_to_5 & (a[4] & ~b[4]);
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| 194 | wire a_gt_b_at_3;
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| 195 | assign a_gt_b_at_3 = a_eq_b_down_to_4 & (a[3] & ~b[3]);
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| 196 | wire a_gt_b_at_2;
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| 197 | assign a_gt_b_at_2 = a_eq_b_down_to_3 & (a[2] & ~b[2]);
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| 198 | wire a_gt_b_at_1;
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| 199 | assign a_gt_b_at_1 = a_eq_b_down_to_2 & (a[1] & ~b[1]);
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| 200 | wire a_gt_b_at_0;
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| 201 | assign a_gt_b_at_0 = a_eq_b_down_to_1 & (a[0] & ~b[0]);
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| 202 |
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| 203 |
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| 204 | assign out[0] = (thenset[0] & takethen) | (elseset[0] & takeelse);
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| 205 | assign out[1] = (thenset[1] & takethen) | (elseset[1] & takeelse);
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| 206 | assign out[2] = (thenset[2] & takethen) | (elseset[2] & takeelse);
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| 207 | assign out[3] = (thenset[3] & takethen) | (elseset[3] & takeelse);
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| 208 | assign out[4] = (thenset[4] & takethen) | (elseset[4] & takeelse);
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| 209 | assign out[5] = (thenset[5] & takethen) | (elseset[5] & takeelse);
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| 210 | assign out[6] = (thenset[6] & takethen) | (elseset[6] & takeelse);
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| 211 | assign out[7] = (thenset[7] & takethen) | (elseset[7] & takeelse);
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| 212 | assign out[8] = (thenset[8] & takethen) | (elseset[8] & takeelse);
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| 213 | assign out[9] = (thenset[9] & takethen) | (elseset[9] & takeelse);
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| 214 | assign out[10] = (thenset[10] & takethen) | (elseset[10] & takeelse);
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| 215 | assign out[11] = (thenset[11] & takethen) | (elseset[11] & takeelse);
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| 216 | assign out[12] = (thenset[12] & takethen) | (elseset[12] & takeelse);
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| 217 | assign out[13] = (thenset[13] & takethen) | (elseset[13] & takeelse);
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| 218 | assign out[14] = (thenset[14] & takethen) | (elseset[14] & takeelse);
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| 219 | assign out[15] = (thenset[15] & takethen) | (elseset[15] & takeelse);
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| 220 | assign out[16] = (thenset[16] & takethen) | (elseset[16] & takeelse);
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| 221 | assign out[17] = (thenset[17] & takethen) | (elseset[17] & takeelse);
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| 222 | assign out[18] = (thenset[18] & takethen) | (elseset[18] & takeelse);
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| 223 | assign out[19] = (thenset[19] & takethen) | (elseset[19] & takeelse);
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| 224 | assign out[20] = (thenset[20] & takethen) | (elseset[20] & takeelse);
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| 225 | assign out[21] = (thenset[21] & takethen) | (elseset[21] & takeelse);
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| 226 | assign out[22] = (thenset[22] & takethen) | (elseset[22] & takeelse);
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| 227 | assign out[23] = (thenset[23] & takethen) | (elseset[23] & takeelse);
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| 228 | assign out[24] = (thenset[24] & takethen) | (elseset[24] & takeelse);
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| 229 | assign out[25] = (thenset[25] & takethen) | (elseset[25] & takeelse);
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| 230 | assign out[26] = (thenset[26] & takethen) | (elseset[26] & takeelse);
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| 231 | assign out[27] = (thenset[27] & takethen) | (elseset[27] & takeelse);
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| 232 | assign out[28] = (thenset[28] & takethen) | (elseset[28] & takeelse);
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| 233 | assign out[29] = (thenset[29] & takethen) | (elseset[29] & takeelse);
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| 234 | assign out[30] = (thenset[30] & takethen) | (elseset[30] & takeelse);
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| 235 | assign out[31] = (thenset[31] & takethen) | (elseset[31] & takeelse);
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| 236 |
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| 237 | endmodule
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| 238 |
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