|
3#
樓主 |
發表於 2008-5-2 12:44:58
|
只看該作者
回覆
比如說我的code如下:
! m$ ?: z7 N) G) d! D
6 O. z) U0 \3 h! [& y$ b4 umodule firo( run, Dout); m+ z+ X$ ~. Y+ b
0 Z3 |5 }" p! d3 G5 \9 Z' Minput run;3 E0 N5 e3 D; B5 V/ Q
output Dout;
3 h! J% K6 J6 ]
# Q2 `% R- y" U# {3 Twire run, Dout, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12;1 `1 z* v# B% Y
wire w13, w14, w15, w16, w17, w18, w19, w20, w21;; n/ B; o" I' ^# ^/ u
' Y6 R& Z' d9 h- [6 W
nand na1(w2, run, Dout);" C, B" s2 k3 n, ]% ?
xor x1(w3, w2, Dout);% m0 e1 H& \- Z' o6 z
not n1(w4, w3);# h7 q5 W" T7 F9 ]) O
not n2(w5, w4);/ h. Q A4 n4 h: m0 Q: d" g, |/ e
not n3(w6, w5);- I& z" X8 x8 m |) `* S: k
not n4(w7, w6);
4 |7 T$ @# A2 F: E+ l$ L8 [not n5(w8, w7);, v) v, j2 i0 ~
not n6(w9, w8);
4 g0 G5 u" k- R' x1 e: z* C5 d$ p4 nnot n7(w10, w9);
: K" x8 P5 P' u7 @7 s1 Pxor x2(w11, w10, Dout);
) q7 Z. h. \# k- w" d. k& i3 {not n8(w12, w11);
* B4 A- Y9 f; Z* [) G$ o Xxor x3(w13, w12, Dout);
+ ]' I& p3 Z, o5 Nnot n9(w14, w13);
8 i2 y) S% V6 w6 Oxor x4(w15, w14, Dout);' [- y! M) J; Y4 i) c) a; _
not n10(w16, w15);
+ z% |: L1 _& J5 T( W, fxor x5(w17, w16, Dout);1 R4 D$ B$ N% r! e, @6 q" Q
not n11(w18, w17);! `; X: N! E2 v2 G5 s) A
not n12(w19, w18);
! ~9 g9 Z9 X' b8 u1 K: jxor x6(w20, w19, Dout);
& k y4 r: B# r4 M+ @ n% nnot n13(w21, w20);* i4 [4 D2 \. P' f8 G9 E" b& t6 G
not n14(Dout, w21);
5 ]( U5 L, u4 _6 ]+ a6 `( d2 H, R
; X; V6 n& }$ `4 fendmodule1 _, l9 S# y% U( X9 _) g" t
- y/ ^& r+ m! E v% W7 c那我要怎麼加所謂的attribute 才能夠keep我的電路呢?
3 D6 E2 R% G- b7 Q1 M! r; o8 a不好意思,因為對此不甚熟析,希望大大能夠做個範例指導,這樣對初學者的我能夠較快上手! H. W$ {. b# Q3 [/ t
3 \7 i7 `( x/ {& y$ K4 f$ K感激 |
|