4-2. The following is an example of mixed use of blocking and nonblocking assign

Question

4-2. The following is an example of mixed use of blocking and nonblocking assignments: an example of mixed uae of blocking and nonblocking aa aignmenta module blocking-nonblocking-mixed; reg a, b, c, d, e; blocking aaaignmenta initial begin a #3 1'b0 #41 bi b d #7 1'b1 #8 1'b0 end endmodule (a) At what simulation time is each statement executed? (b) Interchange the blocking and nonblocking operators and redo part (a). (c) Replace All nonblocking ent with blocking assignments and redo pa (a) a (d) Replace all blocking assignment with nonblocking assignments and redo part (a)

Explanation / Answer

Answers:

a)

a=#3 1'b0;
b<=#4 1'b1;
c<=#6 1'b0;
d=#7 1'b1;
e=#8 1'b0;

The simulator assigns 0 to a at time 3
The simulator assigns 1 to b at time 4
The simulator assigns 0 to c at time 6
The simulator assigns 1 to d at time 10
The simulator assigns 0 to e at time 18

b)

a<=#3 1'b0;
b=#4 1'b1;
c=#6 1'b0;
d<=#7 1'b1;
e<=#8 1'b0;

The simulator assigns 0 to a at time 3
The simulator assigns 1 to b at time 4
The simulator assigns 0 to c at time 10
The simulator assigns 1 to d at time 7
The simulator assigns 0 to e at time 8

c)

a=#3 1'b0;
b=#4 1'b1;
c=#6 1'b0;
d=#7 1'b1;
e=#8 1'b0;

The simulator assigns 0 to a at time 3
The simulator assigns 1 to b at time 7
The simulator assigns 0 to c at time 13
The simulator assigns 1 to d at time 20
The simulator assigns 0 to e at time 28

d)

a<=#3 1'b0;
b<=#4 1'b1;
c<=#6 1'b0;
d<=#7 1'b1;
e<=#8 1'b0;

The simulator assigns 0 to a at time 3
The simulator assigns 1 to b at time 4
The simulator assigns 0 to c at time 6
The simulator assigns 1 to d at time 7
The simulator assigns 0 to e at time 8

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.