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READING VECTOR FILES

User-Programmed Reader

User describes the format of the vector data to be read using Format Strings with either the TABULAR, SCRIPT or WAVE FORMAT statement.  This, together with pin and other format information is contained in the OVF_BLOCK of the vtran command file.  The OVF_BLOCK commands include:

VTRAN CommandComments

ORIG_FILE = “fname”;Required

SCALE = n;Optional (n = .1, .01, .001)

INPUTS / OUTPUTS / BIDIRECTS pinlist;Required – ordered

CASE_SENSITIVE;Optional

BUSFORMAT pinlist = radix;Required if not binary

WHITESPACE charlist ;Optional

BEGIN_LINE / BEGIN_STRING ;Optional – where to start

TABULAR / SCRIPT / WAVE_FORMATRequired – format strings

“format_string1”, “format_string2”, .. ;

TERMINATE TIME / LINE / STRING ..;Optional – where to stop

MAX_UNMATCHED = n [verbose];Optional (default n=100)

COMMENTS  ON/OFF ;Read OVF comments

Using the information contained in the OVF_BLOCK of the vtran command file, vtran attempts to read the vector file.  For each vector line, an attempt is made to match it with one of the format_strings (in order) – if the match is successful, vtran accepts the time and state data of the new vector, otherwise it issues a Warning message and ignores the line.

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