1AFFECT(3) GENPAT functions AFFECT(3)
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6 AFFECT, GENPAT Package
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10 AFFECT ("pattern_date", "ident", "value");
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14 pattern_date
15 : pattern date which may be either : integer (absolute date)
16 or + integer (relative date, the date of the current pattern
17 (last modified using INIT or AFFECT) is the reference). All
18 dates are supposed to be expressed in the same time unit
19 which may be set only once using SETTUNIT.
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21 ident Either the name of a bused signal or a scalar. Vectors must
22 be referenced with their names only, or bit per bit. For
23 example, if b(3 downto 0) exists, you can affect "b", "b(3)"
24 or "b 3". Path-name must be specified by the syntax :
25 instance1.instance11.name
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28 value The value associated with the signal which may be either a
29 based number (ex. binary: 0b011 ,hexa: 0x3F, octal: 0o56) or
30 a decimal number. Unknown value (value where a '*' appears),
31 can be used when dealing with an output, a signal, a register
32 or an input/output when this last one is to be tested. Star
33 ('*') can appears everywhere in a BASED number, but the
34 result will be a "full star" value. (For example, "0B0*10"
35 and "0B***" would give the same result.) AFFECT is doing
36 automatically the transformation of the value into a "forced"
37 value or a "tested" value except for the bidirectional con‐
38 nectors affectation. When and bidirectional is to be tested,
39 a '?' character must be added before the value (example :
40 "?0x45f*" instead of "0x45f*").
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44 "Affect" a value to a signal. This value will be apllied to the signal,
45 at the specified simulation date, until the end of the simulation or
46 until a new value is affected to the signal. Beware : Inputs have to be
47 affected at the beginning of the simulation (first pattern at 0 ps). By
48 default, signals (except Inputs) are affected with a "full star" value
49 at the first pattern.
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52 This fonction also set the current pattern.
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56 SETTUNIT("ps");
57 AFFECT ("5", "b", "0B1");
58 result : b
59 < 5 ps> :.....1...;
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62 At simulation date 0 ps the signal b(3 downto 0) receives the value
63 "0001". This value will be kept until the end of the simulation if no
64 more affectation is made.
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66 SETTUNIT("ns");
67 AFFECT ("0", "b", "0B0");
68 AFFECT ("2", "b", "0B1");
69 result : b
70 < 0 ns> :.....0...;
71 < 2 ns> :.....1...;
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76 genpat(1), pat(5)
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83ASIM/LIP6 October 1, 1997 AFFECT(3)