Daku
Guest
Mon Jun 21, 2010 7:23 am
Could some Verilog guru please clarify
a few points regarding my problem ? I
have modelled a content-addressable
memory block, with parallel search, and
I am trying to measure number of clock
cycles for to insert a word and parallel
search for a word.
Both of insert and search operations are blocking and asynchronous.
These two
operations are triggered with 'write_en'
and 'search_en' going high respectively.
A clock runs separately and in the case
both 'write_en' and 'search_en' are low
and clock is high, some book-keeping
operations are performed.
Given this setup, how do I measure the
time required for an insertion and the
time for a search ? I am fully aware of
the standard Verilog command '$time'
and specifically may I know if taking
time-stamps before start of an operation
and immediately after the end, would be
sufficient.
Any hints, suggestions would be of immense
value. Thanks in advance for your help.
d_s_klein
Guest
Wed Jun 23, 2010 9:27 pm
If I understand your post, you have built an asynchronous (non-
synchronous) simulation model of a CAM using blocking assignment
variables.
In a simulation model like this, $time has no meaning.
RK
On Jun 20, 9:23 pm, Daku <dakup...@gmail.com> wrote:
Quote:
Could some Verilog guru please clarify
a few points regarding my problem ? I
have modelled a content-addressable
memory block, with parallel search, and
I am trying to measure number of clock
cycles for to insert a word and parallel
search for a word.
Both of insert and search operations are blocking and asynchronous.
These two
operations are triggered with 'write_en'
and 'search_en' going high respectively.
A clock runs separately and in the case
both 'write_en' and 'search_en' are low
and clock is high, some book-keeping
operations are performed.
Given this setup, how do I measure the
time required for an insertion and the
time for a search ? I am fully aware of
the standard Verilog command '$time'
and specifically may I know if taking
time-stamps before start of an operation
and immediately after the end, would be
sufficient.
Any hints, suggestions would be of immense
value. Thanks in advance for your help.
