Encore SIM EDITOR SOFTWARE Betriebsanweisung PDF herunterladen (Seite 387)

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VCD+ (vpd) File Generation

VCD+ has command-line options that affect performance and file

sizes. These options, presented in subsequent sections, allow the

user to run VCD+ in the most effective manner. To optimize

simulator performance and VCD+ file size, consider the size of

the design, the RAM memory capacity of the user workstation,

swap space, disk storage limits, and the methodology used in the

project.

Note:

For simulators other than VCS, the VirSim PLI must be linked to

your simulator executable. Refer to the Installation Notes

distributed with the VirSim software.

System Tasks and Functions

VCD+ system tasks are used to capture and save value change data

in a binary format so that the data can be viewed in the Waveform

Window, Register Window, Source Window, and Logic Browser. The

following VCD+ system tasks may be included in source files or

entered at the simulator interactive prompt:

System Tasks to Generate a VCD+ File

Note:

The $vcdpluson and $vcdplusoff system tasks accept the

same arguments as the Verilog $dumpvars system task. Unlike

standard VCD, this lets you turn recording on or off for variables

during the same simulation.

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