[11] | 1 | # vl2mv arbiter_le.v |
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| 2 | # version: 0.2 |
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| 3 | # date: 15:54:18 11/04/96 (PST) |
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| 4 | .model main |
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| 5 | # I/O ports |
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| 6 | .outputs ackA |
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| 7 | .outputs ackB |
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| 8 | .outputs ackC |
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| 9 | |
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| 10 | .mv sel 4 A B C X |
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| 11 | # assign active = pass_tokenA || pass_tokenB || pass_tokenC |
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| 12 | # pass_tokenA || pass_tokenB |
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| 13 | .names pass_tokenA pass_tokenB _n1 |
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| 14 | .def 1 |
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| 15 | 0 0 0 |
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| 16 | # pass_tokenA || pass_tokenB || pass_tokenC |
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| 17 | .names _n1 pass_tokenC _n2 |
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| 18 | .def 1 |
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| 19 | 0 0 0 |
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| 20 | .names _n2 active$raw_n0 |
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| 21 | - =_n2 |
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| 22 | .mv _n3 4 A B C X |
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| 23 | .names _n3 |
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| 24 | A |
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| 25 | .subckt controller controllerA req=reqA ack=ackA sel=sel pass_token=pass_tokenA id=_n3 |
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| 26 | .mv _n4 4 A B C X |
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| 27 | .names _n4 |
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| 28 | B |
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| 29 | .subckt controller controllerB req=reqB ack=ackB sel=sel pass_token=pass_tokenB id=_n4 |
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| 30 | .mv _n5 4 A B C X |
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| 31 | .names _n5 |
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| 32 | C |
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| 33 | .subckt controller controllerC req=reqC ack=ackC sel=sel pass_token=pass_tokenC id=_n5 |
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| 34 | .subckt arbiter arbiter sel=sel active=active |
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| 35 | .subckt client clientA req=reqA ack=ackA |
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| 36 | .subckt client clientB req=reqB ack=ackB |
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| 37 | .subckt client clientC req=reqC ack=ackC |
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| 38 | .subckt observer observer req=reqA ack=ackA |
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| 39 | # conflict arbitrators |
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| 40 | .names active$raw_n0 active |
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| 41 | 0 0 |
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| 42 | 1 1 |
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| 43 | # non-blocking assignments |
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| 44 | # latches |
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| 45 | # quasi-continuous assignment |
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| 46 | .end |
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| 47 | |
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| 48 | |
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| 49 | .model controller |
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| 50 | # I/O ports |
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| 51 | .inputs sel |
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| 52 | .inputs req |
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| 53 | .outputs pass_token |
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| 54 | .outputs ack |
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| 55 | .inputs id |
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| 56 | |
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| 57 | .mv sel 4 A B C X |
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| 58 | .mv state 3 IDLE READY BUSY |
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| 59 | .mv id 4 A B C X |
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| 60 | # state = 0 |
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| 61 | .mv state$raw_n6 3 IDLE READY BUSY |
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| 62 | .names state$raw_n6 |
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| 63 | IDLE |
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| 64 | # non-blocking assignments for initial |
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| 65 | # ack = 0 |
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| 66 | .names ack$raw_n7 |
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| 67 | 0 |
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| 68 | # non-blocking assignments for initial |
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| 69 | # pass_token = 1 |
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| 70 | .names pass_token$raw_n8 |
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| 71 | 1 |
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| 72 | # non-blocking assignments for initial |
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| 73 | # assign is_selected = (sel == id ) |
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| 74 | # sel == id |
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| 75 | .names sel id _na |
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| 76 | .def 0 |
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| 77 | - =sel 1 |
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| 78 | .names _na is_selected$raw_n9 |
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| 79 | - =_na |
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| 80 | .mv _nd 3 IDLE READY BUSY |
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| 81 | .names _nd |
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| 82 | IDLE |
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| 83 | .names state _nd _nc |
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| 84 | .def 0 |
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| 85 | - =state 1 |
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| 86 | .names _nc _nb |
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| 87 | 1 1 |
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| 88 | 0 0 |
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| 89 | .names is_selected _ne |
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| 90 | - =is_selected |
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| 91 | .names req _nf |
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| 92 | - =req |
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| 93 | # state = 1 |
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| 94 | .mv state$req_n10$true 3 IDLE READY BUSY |
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| 95 | .names state$req_n10$true |
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| 96 | READY |
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| 97 | # pass_token = 0 |
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| 98 | .names pass_token$req_n11$true |
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| 99 | 0 |
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| 100 | # pass_token = 1 |
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| 101 | .names pass_token$req_n12$false |
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| 102 | 1 |
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| 103 | # if/else (req ) |
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| 104 | .names pass_token$req_n11$true pass_token$req_n12$false req pass_token$req$raw_n15 |
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| 105 | 0 - 1 0 |
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| 106 | 1 - 1 1 |
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| 107 | - 0 0 0 |
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| 108 | - 1 0 1 |
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| 109 | .mv state$req$raw_n19 3 IDLE READY BUSY |
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| 110 | .names state$req_n10$true state req state$req$raw_n19 |
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| 111 | - - 0 =state |
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| 112 | - - 1 =state$req_n10$true |
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| 113 | # pass_token = 0 |
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| 114 | .names pass_token$is_selected_n1b$false |
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| 115 | 0 |
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| 116 | # if/else (is_selected ) |
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| 117 | .names pass_token$req$raw_n15 pass_token$is_selected_n1b$false is_selected pass_token$is_selected$raw_n1f |
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| 118 | 0 - 1 0 |
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| 119 | 1 - 1 1 |
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| 120 | - 0 0 0 |
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| 121 | - 1 0 1 |
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| 122 | .mv state$is_selected$raw_n21 3 IDLE READY BUSY |
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| 123 | .names state$req$raw_n19 state is_selected state$is_selected$raw_n21 |
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| 124 | - - 0 =state |
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| 125 | - - 1 =state$req$raw_n19 |
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| 126 | .mv _n26 3 IDLE READY BUSY |
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| 127 | .names _n26 |
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| 128 | READY |
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| 129 | .names state _n26 _n25 |
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| 130 | .def 0 |
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| 131 | - =state 1 |
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| 132 | .names _n25 _n24 |
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| 133 | 1 1 |
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| 134 | 0 0 |
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| 135 | # state = 2 |
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| 136 | .mv state$_n24_n27$true 3 IDLE READY BUSY |
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| 137 | .names state$_n24_n27$true |
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| 138 | BUSY |
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| 139 | # ack = 1 |
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| 140 | .names ack$_n24_n28$true |
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| 141 | 1 |
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| 142 | .mv _n2b 3 IDLE READY BUSY |
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| 143 | .names _n2b |
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| 144 | BUSY |
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| 145 | .names state _n2b _n2a |
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| 146 | .def 0 |
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| 147 | - =state 1 |
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| 148 | .names _n2a _n29 |
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| 149 | 1 1 |
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| 150 | 0 0 |
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| 151 | .names req _n2c |
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| 152 | 0 1 |
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| 153 | 1 0 |
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| 154 | .names _n2c _n2d |
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| 155 | - =_n2c |
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| 156 | # state = 0 |
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| 157 | .mv state$_n2c_n2e$true 3 IDLE READY BUSY |
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| 158 | .names state$_n2c_n2e$true |
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| 159 | IDLE |
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| 160 | # ack = 0 |
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| 161 | .names ack$_n2c_n2f$true |
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| 162 | 0 |
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| 163 | # pass_token = 1 |
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| 164 | .names pass_token$_n2c_n30$true |
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| 165 | 1 |
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| 166 | # if/else (!req ) |
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| 167 | .names pass_token$_n2c_n30$true pass_token _n2c pass_token$_n2c$raw_n37 |
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| 168 | 0 - 1 0 |
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| 169 | 1 - 1 1 |
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| 170 | - 0 0 0 |
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| 171 | - 1 0 1 |
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| 172 | .mv state$_n2c$raw_n39 3 IDLE READY BUSY |
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| 173 | .names state$_n2c_n2e$true state _n2c state$_n2c$raw_n39 |
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| 174 | - - 0 =state |
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| 175 | - - 1 =state$_n2c_n2e$true |
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| 176 | .names ack$_n2c_n2f$true ack _n2c ack$_n2c$raw_n3a |
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| 177 | 0 - 1 0 |
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| 178 | 1 - 1 1 |
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| 179 | - 0 0 0 |
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| 180 | - 1 0 1 |
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| 181 | # case (state ) |
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| 182 | .mv state$_n29$raw_n42 3 IDLE READY BUSY |
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| 183 | .names state$_n2c$raw_n39 state _n29 state$_n29$raw_n42 |
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| 184 | - - 0 =state |
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| 185 | - - 1 =state$_n2c$raw_n39 |
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| 186 | .names pass_token$_n2c$raw_n37 pass_token _n29 pass_token$_n29$raw_n43 |
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| 187 | 0 - 1 0 |
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| 188 | 1 - 1 1 |
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| 189 | - 0 0 0 |
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| 190 | - 1 0 1 |
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| 191 | .names ack$_n2c$raw_n3a ack _n29 ack$_n29$raw_n45 |
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| 192 | 0 - 1 0 |
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| 193 | 1 - 1 1 |
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| 194 | - 0 0 0 |
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| 195 | - 1 0 1 |
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| 196 | .mv state$_n24$raw_n47 3 IDLE READY BUSY |
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| 197 | .names state$_n24_n27$true state$_n29$raw_n42 _n24 state$_n24$raw_n47 |
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| 198 | - - 0 =state$_n29$raw_n42 |
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| 199 | - - 1 =state$_n24_n27$true |
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| 200 | .names ack$_n24_n28$true ack$_n29$raw_n45 _n24 ack$_n24$raw_n48 |
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| 201 | 0 - 1 0 |
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| 202 | 1 - 1 1 |
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| 203 | - 0 0 0 |
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| 204 | - 1 0 1 |
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| 205 | .names pass_token pass_token$_n29$raw_n43 _n24 pass_token$_n24$raw_n4f |
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| 206 | 0 - 1 0 |
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| 207 | 1 - 1 1 |
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| 208 | - 0 0 0 |
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| 209 | - 1 0 1 |
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| 210 | .mv state$_nb$raw_n52 3 IDLE READY BUSY |
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| 211 | .names state$is_selected$raw_n21 state$_n24$raw_n47 _nb state$_nb$raw_n52 |
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| 212 | - - 0 =state$_n24$raw_n47 |
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| 213 | - - 1 =state$is_selected$raw_n21 |
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| 214 | .names pass_token$is_selected$raw_n1f pass_token$_n24$raw_n4f _nb pass_token$_nb$raw_n53 |
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| 215 | 0 - 1 0 |
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| 216 | 1 - 1 1 |
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| 217 | - 0 0 0 |
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| 218 | - 1 0 1 |
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| 219 | .names ack ack$_n24$raw_n48 _nb ack$_nb$raw_n5b |
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| 220 | 0 - 1 0 |
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| 221 | 1 - 1 1 |
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| 222 | - 0 0 0 |
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| 223 | - 1 0 1 |
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| 224 | # conflict arbitrators |
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| 225 | .names is_selected$raw_n9 is_selected |
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| 226 | 0 0 |
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| 227 | 1 1 |
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| 228 | .names _nb _ne _nf _n24 _n29 _n2d _n5d |
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| 229 | .def 0 |
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| 230 | 1 1 1 - - - 1 |
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| 231 | 0 - - 1 - - 1 |
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| 232 | 0 - - 0 1 1 1 |
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| 233 | .mv _n5e 3 IDLE READY BUSY |
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| 234 | .names _n5d state$_nb$raw_n52 state _n5e |
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| 235 | 1 - - =state$_nb$raw_n52 |
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| 236 | 0 - - =state |
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| 237 | .names _nb _ne _nf _n24 _n29 _n2d _n62 |
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| 238 | .def 0 |
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| 239 | 1 1 1 - - - 1 |
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| 240 | 1 1 0 - - - 1 |
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| 241 | 1 0 - - - - 1 |
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| 242 | 0 - - 0 1 1 1 |
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| 243 | .names _n62 pass_token$_nb$raw_n53 pass_token _n63 |
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| 244 | 1 0 - 0 |
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| 245 | 1 1 - 1 |
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| 246 | 0 - 0 0 |
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| 247 | 0 - 1 1 |
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| 248 | .names _nb _n24 _n29 _n2d _n64 |
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| 249 | .def 0 |
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| 250 | 0 1 - - 1 |
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| 251 | 0 0 1 1 1 |
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| 252 | .names _n64 ack$_nb$raw_n5b ack _n65 |
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| 253 | 1 0 - 0 |
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| 254 | 1 1 - 1 |
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| 255 | 0 - 0 0 |
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| 256 | 0 - 1 1 |
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| 257 | # non-blocking assignments |
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| 258 | # latches |
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| 259 | .r pass_token$raw_n8 pass_token |
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| 260 | 0 0 |
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| 261 | 1 1 |
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| 262 | .latch _n63 pass_token |
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| 263 | .r state$raw_n6 state |
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| 264 | - =state$raw_n6 |
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| 265 | .latch _n5e state |
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| 266 | .r ack$raw_n7 ack |
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| 267 | 0 0 |
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| 268 | 1 1 |
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| 269 | .latch _n65 ack |
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| 270 | # quasi-continuous assignment |
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| 271 | .end |
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| 272 | |
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| 273 | |
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| 274 | .model arbiter |
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| 275 | # I/O ports |
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| 276 | .outputs sel |
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| 277 | .inputs active |
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| 278 | |
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| 279 | .mv sel 4 A B C X |
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| 280 | .mv state 4 A B C X |
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| 281 | # state = 0 |
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| 282 | .mv state$raw_n66 4 A B C X |
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| 283 | .names state$raw_n66 |
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| 284 | A |
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| 285 | # non-blocking assignments for initial |
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| 286 | # assign sel = active ? state : 3 |
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| 287 | .mv sel$raw_n67 4 A B C X |
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| 288 | .mv _n68 4 A B C X |
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| 289 | .names _n68 |
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| 290 | X |
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| 291 | # active ? state : 3 |
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| 292 | .mv _n69 4 A B C X |
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| 293 | .names state _n68 active _n69 |
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| 294 | - - 0 =_n68 |
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| 295 | - - 1 =state |
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| 296 | .names _n69 sel$raw_n67 |
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| 297 | - =_n69 |
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| 298 | .names active _n6a |
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| 299 | - =active |
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| 300 | .mv _n6d 4 A B C X |
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| 301 | .names _n6d |
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| 302 | A |
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| 303 | .names state _n6d _n6c |
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| 304 | .def 0 |
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| 305 | - =state 1 |
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| 306 | .names _n6c _n6b |
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| 307 | 1 1 |
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| 308 | 0 0 |
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| 309 | # state = 1 |
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| 310 | .mv state$_n6b_n6e$true 4 A B C X |
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| 311 | .names state$_n6b_n6e$true |
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| 312 | B |
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| 313 | .mv _n71 4 A B C X |
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| 314 | .names _n71 |
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| 315 | B |
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| 316 | .names state _n71 _n70 |
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| 317 | .def 0 |
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| 318 | - =state 1 |
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| 319 | .names _n70 _n6f |
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| 320 | 1 1 |
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| 321 | 0 0 |
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| 322 | # state = 2 |
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| 323 | .mv state$_n6f_n72$true 4 A B C X |
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| 324 | .names state$_n6f_n72$true |
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| 325 | C |
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| 326 | .mv _n75 4 A B C X |
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| 327 | .names _n75 |
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| 328 | C |
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| 329 | .names state _n75 _n74 |
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| 330 | .def 0 |
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| 331 | - =state 1 |
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| 332 | .names _n74 _n73 |
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| 333 | 1 1 |
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| 334 | 0 0 |
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| 335 | # state = 0 |
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| 336 | .mv state$_n73_n76$true 4 A B C X |
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| 337 | .names state$_n73_n76$true |
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| 338 | A |
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| 339 | # case (state ) |
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| 340 | .mv state$_n73$raw_n79 4 A B C X |
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| 341 | .names state$_n73_n76$true state _n73 state$_n73$raw_n79 |
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| 342 | - - 0 =state |
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| 343 | - - 1 =state$_n73_n76$true |
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| 344 | .mv state$_n6f$raw_n7a 4 A B C X |
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| 345 | .names state$_n6f_n72$true state$_n73$raw_n79 _n6f state$_n6f$raw_n7a |
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| 346 | - - 0 =state$_n73$raw_n79 |
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| 347 | - - 1 =state$_n6f_n72$true |
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| 348 | .mv state$_n6b$raw_n7e 4 A B C X |
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| 349 | .names state$_n6b_n6e$true state$_n6f$raw_n7a _n6b state$_n6b$raw_n7e |
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| 350 | - - 0 =state$_n6f$raw_n7a |
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| 351 | - - 1 =state$_n6b_n6e$true |
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| 352 | # if/else (active ) |
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| 353 | .mv state$active$raw_n84 4 A B C X |
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| 354 | .names state$_n6b$raw_n7e state active state$active$raw_n84 |
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| 355 | - - 0 =state |
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| 356 | - - 1 =state$_n6b$raw_n7e |
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| 357 | # conflict arbitrators |
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| 358 | .names sel$raw_n67 sel |
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| 359 | - =sel$raw_n67 |
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| 360 | .names _n6a _n6b _n6f _n73 _n85 |
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| 361 | .def 0 |
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| 362 | 1 1 - - 1 |
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| 363 | 1 0 1 - 1 |
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| 364 | 1 0 0 1 1 |
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| 365 | .mv _n86 4 A B C X |
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| 366 | .names _n85 state$active$raw_n84 state _n86 |
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| 367 | 1 - - =state$active$raw_n84 |
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| 368 | 0 - - =state |
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| 369 | # non-blocking assignments |
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| 370 | # latches |
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| 371 | .r state$raw_n66 state |
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| 372 | - =state$raw_n66 |
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| 373 | .latch _n86 state |
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| 374 | # quasi-continuous assignment |
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| 375 | .end |
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| 376 | |
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| 377 | |
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| 378 | .model client |
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| 379 | # I/O ports |
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| 380 | .outputs req |
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| 381 | .inputs ack |
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| 382 | |
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| 383 | .mv state 3 NO_REQ REQ HAVE_TOKEN |
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| 384 | # req = 0 |
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| 385 | .names req$raw_n89 |
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| 386 | 0 |
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| 387 | # non-blocking assignments for initial |
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| 388 | # state = 0 |
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| 389 | .mv state$raw_n8a 3 NO_REQ REQ HAVE_TOKEN |
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| 390 | .names state$raw_n8a |
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| 391 | NO_REQ |
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| 392 | # non-blocking assignments for initial |
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| 393 | # assign rand_choice = $NDset ( 0,1 ) |
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| 394 | .names rand_choice |
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| 395 | 0 |
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| 396 | 1 |
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| 397 | .mv _n8f 3 NO_REQ REQ HAVE_TOKEN |
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| 398 | .names _n8f |
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| 399 | NO_REQ |
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| 400 | .names state _n8f _n8e |
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| 401 | .def 0 |
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| 402 | - =state 1 |
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| 403 | .names _n8e _n8d |
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| 404 | 1 1 |
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| 405 | 0 0 |
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| 406 | .names rand_choice _n90 |
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| 407 | - =rand_choice |
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| 408 | # req = 1 |
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| 409 | .names req$rand_choice_n91$true |
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| 410 | 1 |
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| 411 | # state = 1 |
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| 412 | .mv state$rand_choice_n92$true 3 NO_REQ REQ HAVE_TOKEN |
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| 413 | .names state$rand_choice_n92$true |
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| 414 | REQ |
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| 415 | # if/else (rand_choice ) |
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| 416 | .names req$rand_choice_n91$true req rand_choice req$rand_choice$raw_n97 |
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| 417 | 0 - 1 0 |
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| 418 | 1 - 1 1 |
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| 419 | - 0 0 0 |
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| 420 | - 1 0 1 |
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| 421 | .mv state$rand_choice$raw_n99 3 NO_REQ REQ HAVE_TOKEN |
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| 422 | .names state$rand_choice_n92$true state rand_choice state$rand_choice$raw_n99 |
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| 423 | - - 0 =state |
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| 424 | - - 1 =state$rand_choice_n92$true |
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| 425 | .mv _n9c 3 NO_REQ REQ HAVE_TOKEN |
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| 426 | .names _n9c |
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| 427 | REQ |
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| 428 | .names state _n9c _n9b |
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| 429 | .def 0 |
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| 430 | - =state 1 |
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| 431 | .names _n9b _n9a |
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| 432 | 1 1 |
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| 433 | 0 0 |
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| 434 | .names ack _n9d |
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| 435 | - =ack |
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| 436 | # state = 2 |
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| 437 | .mv state$ack_n9e$true 3 NO_REQ REQ HAVE_TOKEN |
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| 438 | .names state$ack_n9e$true |
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| 439 | HAVE_TOKEN |
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| 440 | # if/else (ack ) |
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| 441 | .mv state$ack$raw_na1 3 NO_REQ REQ HAVE_TOKEN |
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| 442 | .names state$ack_n9e$true state ack state$ack$raw_na1 |
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| 443 | - - 0 =state |
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| 444 | - - 1 =state$ack_n9e$true |
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| 445 | .mv _na4 3 NO_REQ REQ HAVE_TOKEN |
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| 446 | .names _na4 |
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| 447 | HAVE_TOKEN |
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| 448 | .names state _na4 _na3 |
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| 449 | .def 0 |
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| 450 | - =state 1 |
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| 451 | .names _na3 _na2 |
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| 452 | 1 1 |
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| 453 | 0 0 |
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| 454 | .names rand_choice _na5 |
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| 455 | - =rand_choice |
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| 456 | # req = 0 |
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| 457 | .names req$rand_choice_na6$true |
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| 458 | 0 |
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| 459 | # state = 0 |
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| 460 | .mv state$rand_choice_na7$true 3 NO_REQ REQ HAVE_TOKEN |
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| 461 | .names state$rand_choice_na7$true |
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| 462 | NO_REQ |
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| 463 | # if/else (rand_choice ) |
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| 464 | .names req$rand_choice_na6$true req rand_choice req$rand_choice$raw_nac |
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| 465 | 0 - 1 0 |
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| 466 | 1 - 1 1 |
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| 467 | - 0 0 0 |
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| 468 | - 1 0 1 |
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| 469 | .mv state$rand_choice$raw_nae 3 NO_REQ REQ HAVE_TOKEN |
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| 470 | .names state$rand_choice_na7$true state rand_choice state$rand_choice$raw_nae |
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| 471 | - - 0 =state |
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| 472 | - - 1 =state$rand_choice_na7$true |
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| 473 | # case (state ) |
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| 474 | .names req$rand_choice$raw_nac req _na2 req$_na2$raw_nb3 |
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| 475 | 0 - 1 0 |
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| 476 | 1 - 1 1 |
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| 477 | - 0 0 0 |
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| 478 | - 1 0 1 |
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| 479 | .mv state$_na2$raw_nb5 3 NO_REQ REQ HAVE_TOKEN |
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| 480 | .names state$rand_choice$raw_nae state _na2 state$_na2$raw_nb5 |
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| 481 | - - 0 =state |
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| 482 | - - 1 =state$rand_choice$raw_nae |
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| 483 | .mv state$_n9a$raw_nb6 3 NO_REQ REQ HAVE_TOKEN |
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| 484 | .names state$ack$raw_na1 state$_na2$raw_nb5 _n9a state$_n9a$raw_nb6 |
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| 485 | - - 0 =state$_na2$raw_nb5 |
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| 486 | - - 1 =state$ack$raw_na1 |
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| 487 | .names req req$_na2$raw_nb3 _n9a req$_n9a$raw_nb9 |
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| 488 | 0 - 1 0 |
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| 489 | 1 - 1 1 |
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| 490 | - 0 0 0 |
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| 491 | - 1 0 1 |
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| 492 | .names req$rand_choice$raw_n97 req$_n9a$raw_nb9 _n8d req$_n8d$raw_nbc |
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| 493 | 0 - 1 0 |
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| 494 | 1 - 1 1 |
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| 495 | - 0 0 0 |
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| 496 | - 1 0 1 |
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| 497 | .mv state$_n8d$raw_nbe 3 NO_REQ REQ HAVE_TOKEN |
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| 498 | .names state$rand_choice$raw_n99 state$_n9a$raw_nb6 _n8d state$_n8d$raw_nbe |
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| 499 | - - 0 =state$_n9a$raw_nb6 |
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| 500 | - - 1 =state$rand_choice$raw_n99 |
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| 501 | # conflict arbitrators |
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| 502 | .names _n8d _n90 _n9a _na2 _na5 _nc5 |
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| 503 | .def 0 |
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| 504 | 1 1 - - - 1 |
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| 505 | 0 - 0 1 1 1 |
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| 506 | .names _nc5 req$_n8d$raw_nbc req _nc6 |
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| 507 | 1 0 - 0 |
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| 508 | 1 1 - 1 |
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| 509 | 0 - 0 0 |
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| 510 | 0 - 1 1 |
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| 511 | .names _n8d _n90 _n9a _n9d _na2 _na5 _nc7 |
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| 512 | .def 0 |
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| 513 | 1 1 - - - - 1 |
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| 514 | 0 - 1 1 - - 1 |
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| 515 | 0 - 0 - 1 1 1 |
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| 516 | .mv _nc8 3 NO_REQ REQ HAVE_TOKEN |
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| 517 | .names _nc7 state$_n8d$raw_nbe state _nc8 |
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| 518 | 1 - - =state$_n8d$raw_nbe |
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| 519 | 0 - - =state |
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| 520 | # non-blocking assignments |
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| 521 | # latches |
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| 522 | .r req$raw_n89 req |
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| 523 | 0 0 |
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| 524 | 1 1 |
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| 525 | .latch _nc6 req |
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| 526 | .r state$raw_n8a state |
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| 527 | - =state$raw_n8a |
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| 528 | .latch _nc8 state |
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| 529 | # quasi-continuous assignment |
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| 530 | .end |
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| 531 | |
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| 532 | |
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| 533 | .model observer |
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| 534 | # I/O ports |
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| 535 | .inputs req |
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| 536 | .inputs ack |
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| 537 | |
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| 538 | .mv state 3 IDLE BAD GOOD |
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| 539 | # state = 0 |
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| 540 | .mv state$raw_ncb 3 IDLE BAD GOOD |
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| 541 | .names state$raw_ncb |
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| 542 | IDLE |
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| 543 | # non-blocking assignments for initial |
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| 544 | # assign rand_choice = $NDset ( 0,1 ) |
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| 545 | .names rand_choice |
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| 546 | 0 |
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| 547 | 1 |
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| 548 | .mv _nd0 3 IDLE BAD GOOD |
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| 549 | .names _nd0 |
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| 550 | IDLE |
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| 551 | .names state _nd0 _ncf |
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| 552 | .def 0 |
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| 553 | - =state 1 |
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| 554 | .names _ncf _nce |
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| 555 | 1 1 |
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| 556 | 0 0 |
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| 557 | # req && rand_choice |
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| 558 | .names req rand_choice _nd1 |
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| 559 | .def 0 |
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| 560 | 1 1 1 |
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| 561 | .names _nd1 _nd2 |
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| 562 | - =_nd1 |
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| 563 | # state = 1 |
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| 564 | .mv state$_nd1_nd3$true 3 IDLE BAD GOOD |
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| 565 | .names state$_nd1_nd3$true |
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| 566 | BAD |
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| 567 | # if/else (req && rand_choice ) |
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| 568 | .mv state$_nd1$raw_nd6 3 IDLE BAD GOOD |
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| 569 | .names state$_nd1_nd3$true state _nd1 state$_nd1$raw_nd6 |
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| 570 | - - 0 =state |
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| 571 | - - 1 =state$_nd1_nd3$true |
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| 572 | .mv _nd9 3 IDLE BAD GOOD |
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| 573 | .names _nd9 |
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| 574 | BAD |
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| 575 | .names state _nd9 _nd8 |
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| 576 | .def 0 |
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| 577 | - =state 1 |
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| 578 | .names _nd8 _nd7 |
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| 579 | 1 1 |
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| 580 | 0 0 |
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| 581 | .names ack _nda |
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| 582 | - =ack |
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| 583 | # state = 2 |
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| 584 | .mv state$ack_ndb$true 3 IDLE BAD GOOD |
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| 585 | .names state$ack_ndb$true |
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| 586 | GOOD |
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| 587 | # if/else (ack ) |
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| 588 | .mv state$ack$raw_nde 3 IDLE BAD GOOD |
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| 589 | .names state$ack_ndb$true state ack state$ack$raw_nde |
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| 590 | - - 0 =state |
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| 591 | - - 1 =state$ack_ndb$true |
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| 592 | # case (state ) |
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| 593 | .mv state$_nd7$raw_ne1 3 IDLE BAD GOOD |
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| 594 | .names state$ack$raw_nde state _nd7 state$_nd7$raw_ne1 |
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| 595 | - - 0 =state |
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| 596 | - - 1 =state$ack$raw_nde |
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| 597 | .mv state$_nce$raw_ne2 3 IDLE BAD GOOD |
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| 598 | .names state$_nd1$raw_nd6 state$_nd7$raw_ne1 _nce state$_nce$raw_ne2 |
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| 599 | - - 0 =state$_nd7$raw_ne1 |
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| 600 | - - 1 =state$_nd1$raw_nd6 |
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| 601 | # conflict arbitrators |
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| 602 | .names _nce _nd2 _nd7 _nda _ne6 |
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| 603 | .def 0 |
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| 604 | 1 1 - - 1 |
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| 605 | 0 - 1 1 1 |
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| 606 | .mv _ne7 3 IDLE BAD GOOD |
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| 607 | .names _ne6 state$_nce$raw_ne2 state _ne7 |
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| 608 | 1 - - =state$_nce$raw_ne2 |
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| 609 | 0 - - =state |
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| 610 | # non-blocking assignments |
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| 611 | # latches |
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| 612 | .r state$raw_ncb state |
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| 613 | - =state$raw_ncb |
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| 614 | .latch _ne7 state |
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| 615 | # quasi-continuous assignment |
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| 616 | .end |
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| 617 | |
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| 618 | |
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