Virtuoso AMS Environment User Guide
Variables for ams.env Files
amsDirect.simcntl |
useScwritefinal |
boolean |
t |
amsDirect.vlog |
allowDeviantBuses |
cyclic |
"no" |
amsDirect.vlog |
allowIllegalIdentifiers |
cyclic |
"warn" |
amsDirect.vlog |
allowNameCollisions |
cyclic |
"warn" |
amsDirect.vlog |
allowSparseBuses |
cyclic |
"warn" |
amsDirect.vlog |
amsEligibleViewTypes |
string |
"schematic" |
amsDirect.vlog |
checkAndNetlist |
boolean |
nil |
amsDirect.vlog |
checkOnly |
boolean |
nil |
amsDirect.vlog |
compileAsAMS |
boolean |
t |
amsDirect.vlog |
excludeViewNames |
string |
"" |
amsDirect.vlog |
headerText |
cyclic |
"none" |
amsDirect.vlog |
ifdefLanguageExtensions |
boolean |
nil |
amsDirect.vlog |
includeFiles |
string |
"(disciplines.vams)" |
amsDirect.vlog |
ncvlogArguments |
string |
"" |
amsDirect.vlog |
netlistAfterCdfChange |
boolean |
nil |
amsDirect.vlog |
paramDefVals |
string |
"" |
amsDirect.vlog |
paramGlobalDefVal |
string |
"0" |
amsDirect.vlog |
processViewNames |
string |
"" |
amsDirect.vlog |
prohibitCompile |
boolean |
nil |
amsDirect.vlog |
templateFile |
string |
"" |
amsDirect.vlog |
templateScript |
string |
"" |
amsDirect.vlog |
useDefparam |
boolean |
nil |
amsDirect.vlog |
useNowarn |
boolean |
t |
amsDirect.vlog |
useProcessViewNamesOnly |
boolean |
nil |
amsDirect.vlog |
verboseUpdate |
boolean |
t |
amsDirect.vlog |
checktasks |
boolean |
nil |
amsDirect.vlog |
ieee1364 |
boolean |
nil |
amsDirect.vlog |
noline |
boolean |
nil |
amsDirect.vlog |
incdir |
string |
"" |
amsDirect.vlog |
lexpragma |
boolean |
nil |
amsDirect.vlog |
logFileAction |
cyclic |
"Overwrite log file" |
amsDirect.vlog |
macro |
string |
"" |
amsDirect.vlog |
markcelldefines |
boolean |
nil |
amsDirect.vlog |
netlistUDFAsMacro |
boolean |
nil |
amsDirect.vlog |
bindCdsAliasLib |
boolean |
t |
amsDirect.vlog |
bindCdsAliasView |
boolean |
t |
amsDirect.vlog |
maxErrors |
int |
50 |
amsDirect.vlog |
messages |
boolean |
nil |
amsDirect.vlog |
neverwarn |
boolean |
nil |
amsDirect.vlog |
nomempack |
boolean |
nil |
amsDirect.vlog |
nopragmawarn |
boolean |
nil |
amsDirect.vlog |
nostdout |
boolean |
nil |
amsDirect.vlog |
nowarn |
string |
"" |
amsDirect.vlog |
pragma |
boolean |
nil |
amsDirect.vlog |
status |
boolean |
nil |
amsDirect.vlog |
update |
boolean |
t |
amsDirect.vlog |
vloglinedebug |
boolean |
nil |
amsDirect.vlog |
ncvlogUseAddArgs |
boolean |
nil |
amsDirect.vlog |
iterInstExpFormat |
string |
"%b_%i" |
amsDirect.vlog |
netClashFormat |
string |
"%b_netclash" |
amsDirect.vlog |
instClashFormat |
string |
"%b_instclash" |
amsDirect.vlog |
aliasInstFormat |
string |
"ams_alias_inst_%i" |
Detailed Descriptions of ams.env Variables
The next sections discuss each of the ams.env file variables in detail. The sections are arranged alphabetically by variable.
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Virtuoso AMS Environment User Guide
Variables for ams.env Files
aliasInstFormat
Specifies the format to be used to create instances of thecds_alias module.
Syntax
amsDirect.vlog aliasInstFormat string "format"
Values |
|
|
format |
All characters, except those listed below, are printed exactly as |
|
|
included in format. The following characters have the |
|
|
indicated special meanings. |
|
|
%i |
Index number of the current cds_alias |
|
|
instance |
|
%% |
Prints the % character |
The default value of format is ams_alias_inst_%i, which produces names such as ams_alias_inst_1, ams_alias_inst_2, and so on.
If the resulting name is illegal in Verilog-AMS, the name is mapped. If the mapped name clashes with the name of another object, the name undergoes collision mapping.
Example
amsDirect.vlog aliasInstFormat string "cds_alias_%i"
Tells AMS netlister to create instance names with a suffixed index number. In this example, instances of the cds_alias module are given names like:
cds_alias_1 cds_alias_2 cds_alias_3
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Virtuoso AMS Environment User Guide
Variables for ams.env Files
allowDeviantBuses
Controls the netlisting of bus specifications when there are conflicting bus ranges. Bus ranges conflict when, in references to the same bus, the indexes sometimes go from smaller to larger and other times go from larger to smaller.
Syntax
amsDirect.vlog allowDeviantBuses cyclic "no" | "warn" | "yes
Values |
|
no |
Netlisting halts immediately when the AMS netlister encounters |
|
conflicting bus ranges. This is the default. This value |
|
corresponds to the No – Print Errors value used in the |
|
graphical user interface (GUI). |
warn |
Netlisting continues when the AMS netlister encounters |
|
conflicting bus ranges if it is possible to create a valid netlist. The |
|
AMS netlister tells you how the non-compliant bus data is |
|
transformed. The generated netlist is likely to be less readable |
|
than one created from compliant bus data. This value |
|
corresponds to the Yes – Print Warnings value used in the |
|
GUI. |
yes |
Netlisting continues when the AMS netlister encounters |
|
conflicting bus ranges if it is possible to create a valid netlist. The |
|
AMS netlister does not issue a warning. This value corresponds |
|
to the Yes – Silently value used in the GUI. |
Example
An example of conflicting bus ranges in CDBA data is shown below:
a<0:7>
a<7:6>
a<5:0>
a<2:4>
The same example in Verilog-AMS is shown below:
a[0:7]
{a[7],a[6]}
{a[5],a[4],a[3],a[2],a[1],a[0]}
a{2:4}
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Virtuoso AMS Environment User Guide
Variables for ams.env Files
Using the variable
amsDirect.vlog allowDeviantBuses cyclic "yes"
tells the AMS netlister to handle conflicting bus ranges whenever possible, without issuing a warning. This example sets the netlisting behavior for data netlisted into the Verilog® -AMS language.
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