User`s manual

Preference variables located in INI and MPF files
ModelSim Xilinx User’s Manual ModelSim Variables A-269
Turning off assertion messages
You can turn off assertion messages from your VHDL code by setting a switch in
the modelsim.ini file. This option was added because some utility packages print
a huge number of warnings.
[vsim]
IgnoreNote = 1
IgnoreWarning = 1
IgnoreError = 1
IgnoreFailure = 1
Messages may also be turned off with Tcl variables; see "Preference variables
located in TCL files"
(A-271).
Turning off warnings from arithmetic packages
You can disable warnings from the synopsys and numeric standard packages by
adding the following lines to the [vsim] section of the modelsim.ini file.
[vsim]
NumericStdNoWarnings = 1
StdArithNoWarnings = 1
Warnings may also be turned off with Tcl variables; see "Preference variables
located in TCL files"
(A-271).
Force command defaults
The VSIM force command has -freeze, -driver, and -deposit options. When none
of these is specified, then -freeze is assumed for unresolved signals and -drive is
assumed for resolved signals. This is designed to provide compatibility with force
files. But if you prefer -freeze as the default for both resolved and unresolved
signals, you can change the defaults in the modelsim.ini file.
[vsim]
; Default Force Kind
; The choices are freeze, drive, or deposit
DefaultForceKind = freeze
VHDL93
You can make the VHDL93 standard the default by including the following line
in the INI file:
[vcom]
; Turn on VHDL1993 as the default (default is 0)
VHDL93 = 1