eldo_user

Eldo Netlist Setup
General Aspects of the Language Syntax
General Aspects of the Language Syntax
The following sections provide a summary of the Eldo language syntax. The Eldo Reference
Manual contains complete descriptions of all the devices, sources, macromodels and commands
listed in the following pages.
Tip
See “Documentation Syntax Conventions” on page 39 for a detailed description of the
meanings of the different fonts, brackets, and so on, used throughout this manual.
Continuation Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Comment Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Parameter Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Case-Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Numerical Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Environment Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Continuation Lines
The length of one input line is limited to 2000 characters. A line may be continued by using the
+ character at the beginning of the new line. In arithmetic expressions, this leading + sign will
be ignored arithmetically and handled as a continuation. Two + signs may be placed together to
both continue the line, and perform the addition operation.
Related Topics
Netlist Structure
General Aspects of the Language Syntax
Comment Lines
A new comment line must begin with the * or // characters.
If the comment follows an Eldo statement on the same line (inline comment), it must begin with
the ! (or, in some cases, the *) character. The inline comment character (! or *) must be
preceded by a white space. Otherwise, the ! or * character are handled as valid characters that
can, for example, be used in node names or be ignored in other cases. The * character is not
allowed as an inline comment on .EXTRACT, .DEFMAC, .DEFWAVE, .MEAS,
.OBJECTIVE, and .PARAM commands. Use the .COMCHAR command to specify different
inline comment characters.
*
!
Eldo® User's Manual, 15.3 103