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18 Start Here for ModelSim EE/SE

Regenerating your design libraries

Regenerating methods

Explicit refresh

You can easily regenerate your design libraries with -refresh. You must

use the vcom compiler with the -refresh option to update the VHDL design

units in a library, and vlog with the -refresh option to update Verilog

design units. By default, the work library is updated; use -work <library>

to update a different library. For example, if you have a library named

mylib that contains both VHDL and Verilog design units you would use

both of these commands:

vcom -work mylib -refresh

vlog -work mylib -refresh

Rebuild libraries without source code

An important feature of -refresh is that it rebuilds the library image without

using source code. This means that models delivered as compiled libraries

without source code can be rebuilt for a specific release of ModelSim (4.6

and later only). In general, this works for moving forwards or backwards on

a release. Moving backwards on a release may not work if the models used

compiler switches or directives (Verilog only) that do not exist in the older

release.

Note: As in the example above, you will need to use vcom for VHDL

and vlog for Verilog design units. Also, you don’t need to regenerate the

std, ieee, vital22b, and verilog libraries. Also, you cannot use the

-refresh option to update libraries that were built before the 4.6 release.

AutoRefreshing

ModelSim 5.3 library files can be used by either 5.3 simulator type (PE or

EE) with the help of AutoRefresh. AutoRefresh works during simulation

loading to build the library files needed by the current simulator type.

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Model Technology Model Sim EE Manual do Utilizador Página 18