AR# 2756


Foundation XVHDL: How to keep internal signal name so it appears in simulator


Keywords: internal, signal, name, xvhdl, simulation

Urgency: Standard

General Description:
Some internal signals that are outputs of combinatorial logic
will not shows up as a selectable signal in the simulator due
to the XVHDL compiler changing the name of the signal.


To force Metamor (the XVHDL compiler) from renaming the signal
use the 'critical' attribute, as shown below.

Note that the Metamor library should be declared at the top of
the VHDL file:

library METAMOR;
use METAMOR.attributes.all;

The attribute should be used as follows, and should be placed
before the 'begin' keyword in the architecture section.

attribute critical of <signal name>: signal is true;
AR# 2756
Date 01/03/2000
Status Archive
Type General Article
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