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AFFECT(3)			GENPAT functions		       AFFECT(3)

NAME
     AFFECT, GENPAT Package

SYNOPSIS
     AFFECT ("pattern_date", "ident", "value");

PARAMETERS
     pattern_date
	       : pattern date which may be either : integer (absolute date) or +
	       integer	(relative  date,  the  date of the current pattern (last
	       modified using INIT or AFFECT) is the reference). All  dates  are
	       supposed  to  be expressed in the same time unit which may be set
	       only once using SETTUNIT.

     ident     Either the name of a bused signal or a scalar.  Vectors	must  be
	       referenced with their names only, or bit per bit. For example, if
	       b(3 downto 0) exists, you can affect "b", "b(3)" or "b 3".  Path-
	       name must be specified by the syntax : instance1.instance11.name

     value     The  value associated with the signal which may be either a based
	       number (ex. binary: 0b011 ,hexa:  0x3F, octal: 0o56) or a decimal
	       number. Unknown value (value where a '*' appears),  can	be  used
	       when  dealing  with  an	output,  a  signal, a register or an in-
	       put/output when this last one is to be tested.	Star  ('*')  can
	       appears	everywhere  in	a BASED number, but the result will be a
	       "full star" value. (For example, "0B0*10" and "0B***" would  give
	       the  same  result.) AFFECT is doing automatically the transforma-
	       tion of the value into a "forced" value or a "tested"  value  ex-
	       cept for the bidirectional connectors affectation. When and bidi-
	       rectional  is  to be tested, a '?' character must be added before
	       the value (example : "?0x45f*" instead of "0x45f*").

DESCRIPTION
     "Affect" a value to a signal. This value will be apllied to the signal,  at
     the  specified  simulation date, until the end of the simulation or until a
     new value is affected to the signal. Beware : Inputs have to be affected at
     the beginning of the simulation (first pattern at 0 ps). By  default,  sig-
     nals  (except  Inputs)  are  affected with a "full star" value at the first
     pattern.

     This fonction also set the current pattern.

EXAMPLES
     SETTUNIT("ps");
     AFFECT ("5", "b", "0B1");
     result :		 b
     <	    5 ps> :.....1...;

     At simulation date 0 ps the signal b(3 downto 0) receives the value "0001".
     This value will be kept until the end of the simulation if no more affecta-
     tion is made.

     SETTUNIT("ns");
     AFFECT ("0", "b", "0B0");
     AFFECT ("2", "b", "0B1");
     result :		 b
     <	    0 ns> :.....0...;
     <	    2 ns> :.....1...;

SEE ALSO
     genpat(1), pat(5)

ASIM/LIP6			 October 1, 1997		       AFFECT(3)

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