RE: [sv-ac] sampled assertion function vs data types - refereing to prior simulation

From: Bresticker, Shalom <shalom.bresticker_at_.....>
Date: Thu Nov 15 2007 - 01:43:12 PST
There are other types of data types besides variables. E.g., nets.
 
Shalom


________________________________

	From: owner-sv-ac@server.eda.org
[mailto:owner-sv-ac@server.eda.org] On Behalf Of Korchemny, Dmitry
	Sent: Thursday, November 15, 2007 11:34 AM
	To: danielm; sv-ac@server.eda-stds.org
	Subject: RE: [sv-ac] sampled assertion function vs data types -
refereing to prior simulation
	
	

	Hi Daniel,

	 

	D4 draft contains the following definition in 16.8.3:

	 

	" The value of an expression sampled in the Preponed region
corresponding to time 0 is the result of evaluating

	the expression using the initial values of the variables
comprising the expression. The initial value of a

	static variable is the value assigned in its declaration, or, in
the absence of such an assignment, it is the

	default (or uninitialized) value of the corresponding type (see
6.7, Table 6-1). The initial value of any other

	variable or signal is the default value of the corresponding
type (see 6.7, Table 6-1). For example, if $sampled(

	y) is called at time 0, and y is of type logic, the value
returned is X."

	 

	A similar definition is provided for other sampled value
functions.

	 

	Regards,

	Dmitry

	
________________________________


	From: owner-sv-ac@server.eda.org
[mailto:owner-sv-ac@server.eda.org] On Behalf Of danielm
	Sent: Thursday, November 15, 2007 11:28 AM
	To: sv-ac@server.eda-stds.org
	Subject: [sv-ac] sampled assertion function vs data types -
refereing to prior simulation

	 

	Chapter 17.7.3 describes that value of sampled function
(sampled, past, stable) in time 0 should be equal X.

	 

	Is it so for all types of variables?

	For reg it is ok.

	What about bit, wire, enum etc....

	 

	 

	DANiel

	
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Received on Thu Nov 15 01:43:37 2007

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