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[Stéphane Guntz <guntz@xxxxxxxxxxxx>]

Hi, 
sc_logic can have four different values: X, Z, 0 or 1. If you're trying
to convert an sc_logic, which has a value of X or Z, into a boolean, you
will have an error, and that is why you have a warning, telling you that
you could possibly encounter problems during your conversion.
 
In your  case, your program executes well because your sc_logic values
are certainly always 0 or 1. Have a look at the user guide for more
informations about systemC data types.
 
For the last warning ("Default VCD time step"), check on previous mails
on the forum (look at the "trace timescale" thread), for the
"sc_set_vcd_time_unit" function, to select default vcd time. 
 
Hope this helps,
 

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Stéphane GUNTZ 
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-----Message d'origine-----
De : Asif CN [mailto:asifcn@xxxxxxxxx]
Envoyé : mercredi 3 avril 2002 15:22
À : systemc-forum@xxxxxxxxxxx
Objet : [Systemc-forum] warnings.......



 hi all,

while i am executing the .exe file i could get the following
"warnings"...

will these make any problem with my design?? but i'm getting the output
as desired...

kindly comment on this please...

thanks in advance

asif

=============================

              SystemC 2.0 --- Mar 11 2002 11:18:42
        Copyright (c) 1996-2001 by all Contributors
                    ALL RIGHTS RESERVED

WARNING: (E9005) SC_ERR_SC_LOGIC : sc_logic value `X' cannot be
converted to bool
 - c:\systemc\systemc-2.0\src\systemc\datatypes\bit\sc_logic.cpp: 49

WARNING: (E9005) SC_ERR_SC_LOGIC : sc_logic value `X' cannot be
converted to bool
 - c:\systemc\systemc-2.0\src\systemc\datatypes\bit\sc_logic.cpp: 49

WARNING: (E9005) SC_ERR_SC_LOGIC : sc_logic value `X' cannot be
converted to bool
 - c:\systemc\systemc-2.0\src\systemc\datatypes\bit\sc_logic.cpp: 49

WARNING: (E9005) SC_ERR_SC_LOGIC : sc_logic value `X' cannot be
converted to bool
 - c:\systemc\systemc-2.0\src\systemc\datatypes\bit\sc_logic.cpp: 49

WARNING: (E9005) SC_ERR_SC_LOGIC : sc_logic value `X' cannot be
converted to bool
 - c:\systemc\systemc-2.0\src\systemc\datatypes\bit\sc_logic.cpp: 49
WARNING: Default time step is used for VCD tracing.
Press any key to continue

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