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1、 Verilog HDL 5 5 6 5 6 7 5 8 AB CDAB EFAB GH I JKL M 22 22 9 7 9 7 9 1 2 9 29 29 29 2 3 2 8 5 0 1 23 1 45 1 5 2 2C7 4 9 6 3 2 7 9 D6 2C74 9 6 7F4 9 E D6 inputCin Din Ein Fin input signals input 1 0 Sin input select control outputPout output select result regPout Pout assignment always Sin or Cin or
2、Din or Ein or Fin begin if Sin 2 b 00 Pout Cin else if Sin 2 b01 Pout Din else if Sin 2 b10 Pout Ein else Pout Fin end endmodule module prio encode 1 3 598598598598 3 0 0 1 23 1 45 1 3 6 2 2C71 2 3J 2 9 7F 2 9 L D6 3 6 1 A 2C7 9 6 O N O O O 1 5 IJH IJH IJH IJH 0 1 23 1 45 1 1 2 2C7 9 6 O Q O L O Q 7
3、 L 9 O 2 O 2C7 9 6 O LL O bst L L t st t t k t l p b 4 Rp 0z 1 2 J9 0 1 23 1 45 1 2 4 1 1 2 2 C 71 2 J9 O L 5 6 0 2 30 2 0 1 23 1 45 1 2 4 1 1 2 3 2 2 2 2 C 71 2 J 2 9 7 S 2 9 O L M 0 E D6 0 2 301 0 1 23 1 45 1 2 4 1 1 2 3 2 G 2 2 2 C 71 2 J G 2 9 7 SG 2 9 O L M 0 E D6 2 O L M 0 E 5 6 7 0 2 3 0 1 23
4、 1 45 1 2 4 1 1 2 3 2 2 G 2 2 2 C 71 2 J 2 1 2 G 2 9 7 S 2 9 O L D6 02 30 2 0 1 23 1 45 1 2 4 1 1 3 2 2 2 2 C 71 2 J 9 7 S 2 9 O L M 0 E D6 02 301 0 1 23 1 45 1 2 4 1 1 3 2 G 2 2 2 C 71 2 J 9 7 SG 2 9 O L M 0 E D6 2 O L M 0 E 5 6 789 03J0 0 1 23 1 45 1 2 4 1 1 2 3 2 2 3J 4 6 2 2 C 71 2 J 2 9 7 S 2 9
5、 O L D6 L 2 C7 02 9 6 3 2 7 02 9 I 2 C7 02 9 6 3 2 7 02 9 2 2 2 03 2 IpX A 7 L1 I B CDEF l L 34 34 l p 0z 34 Reset A 2 C 71 2 3J 1 2 2 9 6 7 2 9 02 L 2 02 L M 0 E H 5 02 3 6 3 2 C 7 02 49 6 3 2 7 02 9 03 2 6 D6 Y 23 2 2 C 71 2 3J 1 2 2 9 6 7 2 9 02 L 2 02 L M 0 E H 5 02 3 6 3 2 C 7 02 49 6 3 2 7 02
6、9 03 2 6 D6 0 FE FE F 1 B 8 8 B G H 1 H C I C I B 8888888888888888888888888888 C 4 G 8888888888888888888888888888 4 3 9 9 FE FE F 1 B 8 8 B G H 1 H C I C I B 8888888888888888888888888888 C 4 G 8888888888888888888888888888 G 3 9 9 abPcd3UV RUV3abPcd312g KL 8le Wg q KL 8r q KL 8 q KL 8UV 3k 3 9 cdfg q
7、 KL 8cd f cdKL 83 g cd3k g 8 6 NO abP9 V83 NO fi 8 fl GG 8 abPcd V83Z abPcd V83 NOh fi 8 GG 8 3 GG 83L9gDL 45 DL3abPcd V8l3 g A E 0 E F E F E F E F abPcd V8 Cn a0 a1an 2an 1 Cn 1C2C1C0 G A E 3 9 DLabPcd V83 EB A B C D81 1 E DFE FE FE F 1 B 8 8 B G H 1 H C I C I B 8888888888888888888888888888 C 4 G 8
8、888888888888888888888888888 J3GJ 3 9 9 H 1 8 K 0 8 0 8 K 0 8 K 0 8 0 9 1 E 3J 1 X 2 3 6 3 2 2 2 3 2 1 6 2 1 0K I K 7 6 6 29 1 0 4GI 1 7 6 6 29 1 0K I H 6 6 2 P 1 2 22 1 03 3J 3 3J 1 K 03 3J 3 3J 1 A 0K I 22 1 0 3 1 K 0 K 3 1 A 0K I 2 C71 2 K 03 3J9 6 7K 0 9 AK 0 B L M E K 0 2 C71 2 03 3J9 6 7 0 9 0
9、L M E A 0 B 2 3 FIFO345345345345 0 L 89 0 t 4 1 7 Ls ABt 3 R Ls AB 3 x Ls x AB8u 4 1 L s x AB8u 45 B 2 3 23 1 3 1 1 2 5 3 3 3J2 R 1 2 Y 23 2 3 3J 0 6 8 K 0 6 8 K 0 8 0 8 8 4 1 8 1 3 3 6 9 1 I 0K I 1 0K I 1 0 2 1 3J 1 0 6 1 K 0 6 1 A I 0K I 22 0 F4 1 9 K 0 F 9 T 2 2 5 8 3 22 3 2 2 3 3 21 2 0 7 03 3J7
10、 3J98 K 03 3J7 3J98 0 7 0 98 K 0 7K 0 98 0 7 0 98 K 0 7K 0 98 K 0 7K 0 98 0 7 0 9 9 4 1 2 2 0 2 7 98 5 3 3J 3 3 8 K 4 6 2 8 3 2 P 2 C71 2 3J 1 2 0 2 9 7 0 2 9 4 1 L D6 2 4 1 L 7 3 A B 77 3 A 5 3 3J 3 3 8 4 6 2 8 3 2 P 7 598 2 P 4 K 4 6 2 7 6 9 2 C71 2 3 3J 1 2 0 2 9 7 0 2 9 L D6 2 L 7 3 A B 77 3 A 2
11、 C71 2 3 3J 1 2 0 2 9 7 0 2 9 0 L D 9 0 L 0 N D6 2 C71 2 3 3J 1 2 0 2 9 7 0 2 9 K 0 L D 9 K 0 L K 0 N D6 R 3 1 2 2 28 6 2 3 J 12 3J 2 2 2 4 1 2 11 6 2 3 2 2 2 C71 2 3 3J 1 2 0 2 9 7 0 2 9 3 L K 0 9 7 0 F K 0 99 6 7K 0 9 3 L 3 N D6 2 3 L 3 D6 2 4 FIFO45454545 Q 0 Q 894 1 89 89 iT Q 0 p 4 1 7 h u L 0
12、uH IJ k R 3 45 B 2 3 23 1 2 3 3 1 1 2 5 3 3 3J2 R 1 2 Y 23 2 0 K 0 T 2 2 5 8 3 22 3 2 2 3 3 21 2 0 7 03 3J7 03 3J98 K 03 3J7K 03 3J98 0 7 0 98 K 0 7K 0 98 0 7 0 98 K 0 7K 0 98 K 0 7K 0 98 0 7 0 9 9 4 1 2 2 0 2 7 98 3 3 2 P 8 2 8 1 2 6 6 1 2 C71 2 03 3J 1 2 0 2 9 7 0 2 9 4 1 L D6 2 4 1 L 0 6 F 4 1 99
13、 2 2 0 2 7 8 6 2 3 2 K 03 3J 0 2 2 22 98 R 3 3 2 6 P 7 K R 3 22 2 P 2 R 3 2298 H 5 K R 3 22 2 P 2 R 3 228 K 1 2 6 6 1 2 C71 2 K 03 3J 1 2 0 2 9 7 0 2 9 L D6 2 L K 0 6 F 99 R 22 1 2 I 1 2 6 7 0 98 R 3 2 1 1 6 R 3 2 I 2 1 8 2 D 2 P 3 R 3 22 2 2 2 2 4 1 2 2 3 8 J 2 2 3 2 2 1 K 3 3J2 2 3 2 23 8 4 1 2 1
14、2 3 3 3 8 6 2 2 2 C71 2 03 3J 1 2 0 2 9 7 0 2 9 0 L D69 0 L 0 N 2 C71 2 03 3J 1 2 0 2 9 7 0 2 9 0 5 L D6 9 0 5 L U 0 A B8 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A 2 C71 2 03 3J 1 2 0 2 9 7 0 2 9 0 L D6 9 0 L 0 5 2 C71
15、 2 03 3J 1 2 0 2 9 7 0 2 9 0 2 L D6 9 0 2 L 0 R K 22 1 2 3 3 1 1 6 8 53 1 2 2 C71 2 K 03 3J 1 2 0 2 9 7 0 2 9 0 L D6 0 9 0 L 0 N 2 C71 2 K 03 3J 1 2 0 2 9 7 0 2 9 K 0 5 L D6 0 9 K 0 5 L U 0 A B8 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0 A B98 7 0 A B 0
16、 A B98 7 0 A B 0 A 2 C71 2 K 03 3J 1 2 0 2 9 7 0 2 9 K 0 L D6 0 9 K 0 L K 0 5 2 3 3 3 1 0 6 2 8 2 4 1 8 2 8 K 0 6 2 2 8 2 8 K 2 22 0 F 4 1 9 22 0 F 9 K K R 3 22 2 P 8 2 4 1 8 4 1 73 6 9 2 22 K K R 3 22 2 P H 5 R 3 22 7 98 1 3 6 4 1 7 0 6 2 22 8 3 2 2 3 2 2 2 4 1 9 8 K R 3 22 2 P 2 R 3 228 2 I 22 21 3 7 22 29 P 5 3 4 1 P 22 28 2 2 1 3 2 8 H 5 K R 3 22 2 P 2 R 3 22 2 2 8 8 2 3 K 0 6 6 22 2 CK 0 0 9 7 K 0 0 9 4 1 D6 2 4 1 D6 2 CK 0 0 5 9 7 K 0 0 5 9 2 1 D6 2 2 1 D6 2 CK 0 0 2 9 7 K 0 0 2 9 D6 2 D6
