Hardware Reference
In-Depth Information
5.5.
What is the meaning of the following assertion (note that it does not belong to
an
initial
procedure)?
a1:
assert property
(@(
posedge
clk)
s_eventually always
!rst);
5.6.
What is the meaning of the following properties?
(a)
s_eventually nexttime
p
(b)
nexttime s_eventually
p
(c)
s_eventually nexttime always
p
(d)
always nexttime s_eventually
p
5.7.
What do the following properties mean?
(a)
1
until
q
(b)
p
until
1
(c)
0
until
q
(d)
0
until_with
q
(e)
p
until
0
(f)
nexttime
(p
until
q)
(g)
(
nexttime
p)
until
q
(h)
p
until nexttime
q
(i)
p
until_with nexttime
q
(j)
p1
until
(p2
until
p3)
(k)
p1
until_with
(p2
until_with
p3)
(l)
always
(p
until
q)
(m)
(
always
p)
until
q
(n)
p
until always
q
(o)
p1
until
(p2
until always
p3)
5.8.
Prove that
p
until_with
q
is equivalent to
p
until
(p
and
q)
.
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