Prophet Command Syntax

The basic syntax of a Prophet command is:

commandname keyword=value keyword=value keyword=value

Examples:

bias system=silicon_poisson initial
bias system=silicon_dd nstep=5 vstep=0.1 elec=anode

Some characteristics of the input syntax:

• No spaces are allowed in the values unless the value is quoted.
• Spaces are allowed between the ``='' sign and the keyword and value.
• A keyword may be abbreviated up to its shortest unique abbreviation (unique for its command).
• A logical keyword by itself (with no ``='' and no value given) specifies a logical ``true.''
• A command is extended to two or more lines by placing a ``+'' as the first non-blank character in the second and subsequent lines.
• A comment is preceded by a ``#''; following a ``#'', everything on the line is ignored.
• Prophet pre-processes the input file with M4 macro processor before execution, so M4 commands may optionally be used in the input file.

The keyword value types are defined below:

logical

logical value is either true or false. A ``true'' value may be specified by using the keyword by itself (e.g., initial), or equating the keyword to ``t'' or ``1'' (initial=t or initial=1). ``False'' is specified by setting the keyword equal to ``f'' or ``0'' (initial=f or initial=0).

real

real floating point value. Formats such as 140.0, 140, and 1.4e2 are all accepted. Expressions are also allowed (see section on vexpr).

real array

real array is one or more real values separated by commas, e.g., vstep=0.1,0.2,0.1. No spaces are allowed, unless the array is quoted.

integer

integer value, e.g., nstep=5. Expressions are allowed.

integer array

integer array is one or more integer values separated by commas. No spaces are allowed unless the array is quoted.

string

string of characters, e.g., system=silicon_dd.

string array

string array is one or more strings separated by commas. No spaces are allowed between strings. Quotes are not needed. Example: electrode=gate,drain.