Encore SIM EDITOR SOFTWARE Guide de l'utilisateur Page 353

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15-1
Expressions
15
Expressions 1
Expressions are used to create pseudo signals and search for events.
Expressions are created with Verilog or VHDL expression syntax and
operators. You can search for events that are either level sensitive,
edge-triggered, or a combination of both.
Expressions can be used for searches in the Waveform Window and
results can be displayed in both the Waveform and Register windows.
Note:
The VHDL simulator handles only true and false expressions,
whereas VirSim and Verilog allow expressions based on signal
value. If you are using VHDL or mixed VHDL/Verilog with a
Scirocco simulator, be sure that expressions are written for a True/
False result. For example, use (signal1 or signal2) = ’1’ rather than
(signal1 or signal2).
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