User`s manual

Working with design libraries

ModelSim Xilinx User’s Manual Design Libraries 2-31

When you use vmap (CR-147) this way you are modifying the modelsim.ini file.

You can also modify modelsim.ini manually by adding a mapping line. To do this,

edit the modelsim.ini file using any text editor and add a line under the [Library]

section heading using the syntax:

<logical_name> = <directory_pathname>

More than one logical name can be mapped to a single directory. For example,

suppose the modelsim.ini file in the current working directory contains following

lines:

[Library]

work = /usr/rick/design

my_asic = /usr/rick/design

This would allow you to use either the logical name work or my_asic in a library or use

clause to refer to the same design library.

The vmap command

(CR-147) can also be used to display the mapping of a logical

library name to a directory. To do this, enter the shortened form of the command:

vmap <logical_name>

Library search rules

The system searches for the mapping of a logical name in the following order:

• First the system looks for a modelsim.ini file.

• If the system doesn’t find a modelsim.ini file, or if the specified logical name

does not exist in the modelsim.ini file, the system searches the current working

directory for a subdirectory that matches the logical name.

An error is generated by the compiler if you specify a logical name that does not

resolve to an existing directory.