Encore SIM EDITOR SOFTWARE Guida Utente Scaricare il pdf (Pagina 5)

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Avoiding Circular Dependency . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Designing With $lsi_dumpports for Simulation and Test . . . . . . . 2-34

Dealing With Unassigned Nets . . . . . . . . . . . . . . . . . . . . . . . 2-35

Code Values at Time 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36

Cross Module Forces and No Instance Instantiation . . . . . . . 2-36

Signal Value/Strength Codes . . . . . . . . . . . . . . . . . . . . . . . . . 2-38

3. Compiling Your Design

Using the vcs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Incremental Compilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Triggering Recompilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Using Shared Incremental Compilation . . . . . . . . . . . . . . . . . . . 3-5

The Direct Access Interface Directory. . . . . . . . . . . . . . . . . . . . . 3-7

Initializing Memories and Regs . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Allowing Inout Port Connection Width Mismatches. . . . . . . . . . . 3-9

Using Lint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Changing Parameter Values From the Command Line. . . . . . . . 3-12

Checking for X and Z Values in Conditional Expressions . . . . . . 3-14

Enabling the Checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Filtering Out False Negatives. . . . . . . . . . . . . . . . . . . . . . . . . 3-16

HSOPT Technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Making Accessing an Out of Range Bit an Error Condition. . . . . 3-20

Compiling Runtime Options Into the simv Executable. . . . . . . . . 3-21

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Encore SIM EDITOR SOFTWARE Guida Utente Pagina 5