User`s manual

Start Here for ModelSim PE, Software Version 5.7
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Library notes
Library notes
Pre-compiled versions of some non-standard libraries and packages are no longer
provided. The ARITHMETIC library, which contained a package for doing signed
and unsigned vector arithmetic, is no longer included. However, you can
download the source file at ftp://ftp.model.com/pub/obsolete/arithmetic.tar. The
source for the ieee-precompiled version is in
vhdl_src/synopsys/mti_std_logic_arith.vhd
The packages NUMERIC_EXTRA, NUMERIC_SIGNED,
NUMERIC_UNSIGNED, and STD_LOGIC_1164_EXTENSIONS, all from the
IEEE library, are no longer included. However you can download the source file
at ftp://ftp.model.com/pub/obsolete/mentor.tar.